Services Offered at Cullens Supply:

Oil and Filter Change

At Cullens Supply, a full filters service—including oil filter, air filter, and fuel filter replacement—is a core part of keeping your lawn mower running strong, starting easily, and operating at peak power.

Whether you operate a commercial zero-turn, a residential riding tractor, or standard outdoor power equipment, dirty or clogged filters restrict performance, waste fuel, and accelerate internal engine wear. Our technicians perform filter maintenance using OEM or high-grade matching filters designed specifically for your mower’s engine.

What’s Included in Our Filter Service

Engine Oil & Oil Filter Replacement: We drain the old engine oil, inspect for any sign of metallic debris or contamination, and install a fresh oil filter along with clean, manufacturer-recommended engine oil to protect critical engine components from thermal breakdown.
Air Filter & Pre-Cleaner Inspection/Replacement: We clean out the air intake housing and replace the main air filter and pre-cleaner (foam sleeve) to ensure proper airflow to the carburetor or fuel injection system, preventing dust and yard dirt from grinding into the engine cylinder.
Fuel Filter Replacement & Fuel Line Check: We disconnect and replace the inline fuel filter to stop dirt, rust particles, and stale gas sediment from clogging your carburetor or fuel injectors. While replacing the filter, we check fuel lines for cracks, soft spots, or dry rot.

Blade Sharpening and Blade Replacement

A clean, precise cut is the foundation of a healthy lawn. When mower blades get dull, nicked, or bent, they tear the grass instead of cutting it—leaving your yard with jagged, brown tips that are susceptible to disease. Furthermore, dull or unbalanced blades put unnecessary strain on your mower’s deck belts, spindles, and engine.

At Cullens Supply, we offer precision blade sharpening and replacement services for commercial zero-turns, stand-on mowers, and residential riding tractors across most major brands.

Our Mower Blade Services

Precision Blade Sharpening & Balancing We don't just put an edge back on your blades; we restore their performance.
Inspection: We remove the blades and inspect them for deep gouges, stress cracks, and metal fatigue.
Factory-Angle Sharpening: We grind the cutting edge to match the exact factory angle, ensuring optimal cutting performance without removing excessive material.
Static Balancing: This is the most critical step. An unbalanced blade vibrates violently at high RPMs, which will quickly destroy spindle bearings and deck belts. We perfectly balance every blade before reinstalling it and torquing the bolts to manufacturer specs.
New Blade Replacement Blades are wear items. If a blade has been sharpened too many times, has a worn-out "sail" (the uplifted back edge that creates vacuum), or is bent from hitting a rock or stump, sharpening is no longer a safe or effective option. We stock and install high-quality OEM and heavy-duty aftermarket replacement blades. We offer specialized blade profiles depending on your needs, including high-lift blades for bagging, mulching blades, and standard-lift blades for dry, sandy conditions.

Signs You Need Blade Service

Torn Grass: The tips of your grass look frayed, white, or brown a day after mowing.
Uneven Cut: Your mower leaves a strip of uncut grass between the blades or cuts lower on one side.
Excessive Vibration: You feel a heavy vibration through the floorboard or steering controls when the blades are engaged.
Bogging Down: The engine struggles and bogs down in normal grass because the blades are bashing through the turf rather than slicing it.

Whether you need a quick sharpening mid-season or a fresh set of high-lift blades to tackle thick spring growth, our service department will get your deck cutting like new again. Drop off your loose blades or bring the whole mower into the shop!

Chain Sharpening and Chain Replacement

A dull chainsaw doesn't just slow down your work—it’s dangerous. Forcing a dull chain through wood dramatically increases the risk of kickback and forces the engine to work overtime, leading to premature wear on the guide bar, drive sprocket, and clutch.

At Cullens Supply, we provide precision chain sharpening and replacement services so your saw cuts fast, straight, and safe, whether you are clearing storm damage or cutting winter firewood

Our Chainsaw Services

Precision Chain Sharpening We restore the factory cutting edge to your chain, ensuring it pulls itself into the wood effortlessly.
Machine Grinding: We use professional-grade bench grinders to restore the exact required cutting angle on every single tooth, ensuring a uniform, aggressive edge that hand-filing often misses.
Depth Gauge (Raker) Adjustment: Sharpening the cutting teeth is only half the job. As the teeth get filed back, they sit lower. We lower the depth gauges to match, ensuring the chain takes the perfect "bite" of wood without grabbing, bucking, or skipping.
Bar & Sprocket Inspection: While the chain is off, we inspect the guide bar for burrs, uneven wear, and pinched rails. We also check the drive sprocket for excessive grooving to ensure your whole cutting system is healthy.
New Chain Replacement & Sizing Chains eventually reach the end of their lifespan. When a chain is stretched beyond the tensioner's limit, has broken or missing teeth, or is filed down past the factory witness marks, sharpening is no longer an option.
We stock premium replacement chains for most major brands, including ECHO, Shindaiwa, Husqvarna, Stihl, and Poulan.
We offer different chain profiles tailored to your cutting needs, including semi-chisel chains (best for dirty wood, farm use, and staying sharp longer) and full-chisel chains (for the fastest, most aggressive cuts in clean timber).Signs You Need Chain Service
Fine Sawdust: A sharp chain pulls out large, thick wood chips. If your saw is spitting out fine, powdery sawdust, the cutters are completely dull.
Pushing the Saw: A sharp saw pulls itself into the cut. If you have to bear down and force the bar through the log, it's time for a sharpening
.Crooked Cuts: If the saw constantly drifts or cuts in a curved "C" shape, the cutters on one side are duller or shorter than the other, or the bar rails are worn unevenly.
Smoking or Burning: If the cut is smoking despite having a full tank of bar oil, the dull chain is creating extreme friction. You can drop off your entire saw for a full inspection and tune-up, or just bring us your loose chains to have them ground back to a razor edge.

Belt Replacement

A broken or slipping belt stops your equipment dead in its tracks. In outdoor power equipment, heavy-duty belts are responsible for transferring engine power to the cutting deck and the transmission. When a belt stretches, glazes over, or snaps, you lose either your ability to cut or your ability to move.

At Cullens Supply, we replace deck and drive belts on commercial zero-turns, riding tractors, and walk-behind mowers, ensuring your machine is running at full power without slipping or squealing.

Our Belt Replacement Services

Deck Belt (PTO) Replacement The deck belt connects the engine clutch to the mower deck spindles to spin the blades. We remove the deck covers, clear out packed grass and debris, and install a premium OEM or heavy-duty Kevlar-wrapped aftermarket belt. We verify the correct routing and ensure the belt sits perfectly within the pulley grooves to prevent it from jumping off on uneven terrain.
Hydro / Drive Belt Replacement The drive belt powers the hydrostatic transmissions or transaxle that makes the mower move. This belt is often located underneath the engine and can be difficult to access. We safely lift and secure the machine to remove and replace the drive belt. If your zero-turn is feeling sluggish or losing power on inclines, a stretched drive belt is often the culprit.
Pulley & Tensioner Inspection Belts rarely snap for no reason. Simply throwing a new belt on a machine with a failing pulley will just result in another broken belt. While the belt is off, we spin and inspect every idler pulley, spindle housing, and tensioner arm. We check for seized bearings, bent tensioner brackets, and worn tension springs, replacing damaged components so your new belt lasts. Signs Your Belts Are Failing
Squealing Noises: A loud, high-pitched squeal when you engage the blades or accelerate means the belt is stretched and slipping on the pulleys.
Loss of Blade Speed: If the engine is running at full throttle but the blades are bogging down in normal grass, the deck belt is slipping.
Sluggish Movement: If your zero-turn or tractor struggles to climb hills or feels weak on one side, the hydro drive belt may be stretched.
Visual Damage: You can see deep cracks, frayed edges, exposed internal cords, or a shiny, "glazed" sidewall on the belt.
The Belt Keeps Jumping: If a belt repeatedly falls off the pulleys while mowing, the belt is severely stretched, or a tensioner spring has failed.

We stock a massive inventory of exact-fit belts for the brands we carry, minimizing your downtime. Bring your mower in, and we will get your drive systems and cutting decks running smoothly again.

Deck Repair and Replacement

The mower deck is the most abused component on your machine. From hidden stumps to rocky terrain, commercial and residential decks take a massive beating over their lifespan. When a heavy-gauge steel deck cracks, rusts, or bends, it ruins your cut quality and puts immense stress on the rest of the mower.

At Cullens Supply, we offer complete mower deck repair, structural welding, and full deck replacement for commercial zero-turns and residential tractors to get your machine back in the field safely.

Our Deck Repair & Welding Services

Custom Welding & Structural Reinforcement Commercial decks, like the heavy-duty fabricated steel decks on Bad Boy and Hustler mowers, are built to last but can still succumb to metal fatigue or severe impacts. We grind out stress cracks and weld the seams to restore structural integrity. We repair or reinforce torn spindle mounts, broken anti-scalp gauge wheel brackets, and damaged discharge chutes. We weld broken interior baffles that are essential for proper airflow, grass discharge, and mulching performance.
Spindle & Hardware Replacement An impact hard enough to tear the steel deck usually damages the spinning components attached to it. We remove and replace seized, shattered, or bent blade spindles. We replace damaged idler arms, worn deck lift linkages, and stripped tensioner springs to ensure the deck raises, lowers, and engages smoothly.
Complete Deck Shell Replacement Sometimes a deck is simply beyond repair. If the steel is severely rusted out, paper-thin, or warped so badly that the blades overlap or hit the baffling, welding isn't a safe or cost-effective option. We source exact-match OEM replacement deck shells for your specific mower model. We transfer all your existing, functional hardware—pulleys, spindles, lift arms, and gauge wheels—to the new shell, saving you the cost of buying a fully loaded replacement assembly.

Signs You Need Deck Work

Severe Deck Vibration: If the floorboard shakes violently when the blades are engaged, you likely have a cracked deck shell, a bent spindle, or a torn spindle mount.
Persistent Uneven Cutting: If the deck won't level correctly no matter how much you adjust the linkage, the deck shell itself may be warped or the lift brackets may be bent.
Rattling or Grinding Noises: A loud metal-on-metal rattling often points to a broken interior baffle scraping against the mower blades.
Visible Damage: Deep rust holes, visible stress cracks radiating from the pulleys, or bent gauge wheel arms that dig into the turf instead of rolling over it. Whether you need a quick weld over a hairline crack or a complete deck shell swap after a major impact, our service department has the skills and parts inventory to fix it right.

Drop your mower off at our shop and we will get your deck structurally sound and cutting evenly again.

Recoil Repair and Replacement

There is nothing more frustrating than getting ready to tackle yard work, only to pull the starter cord on your equipment and have the rope snap, fail to retract, or pull out without engaging the engine. The recoil starter is your equipment’s lifeline, and when it fails, your machine is useless.

At Cullens Supply, we provide fast, reliable recoil repair and replacement services for push mowers, chainsaws, string trimmers, leaf blowers, and portable generators across all major engine brands, including Honda, Kawasaki, Kohler, Briggs & Stratton, and ECHO.

Our Recoil Repair Services

Pull Cord & Handle Replacement Starter ropes take a lot of abrasive wear and tear, eventually fraying and snapping. We remove the recoil housing, extract the broken rope, and rewind the spool with premium, heavy-duty starter cord that resists stretching and abrasion. We also replace cracked or missing ergonomic pull handles to ensure a safe, comfortable grip.
Rewind Spring & Internal Rebuilds If your rope pulls out but hangs limp and won't suck back into the housing, the internal rewind spring is broken or unhooked. We carefully disassemble the housing (a dangerous job if the high-tension spring suddenly uncoils) and install a new recoil spring. We replace worn or shattered internal pulleys/spools. We inspect and replace the starter pawls (or "dogs") and friction springs. These are the small mechanical fingers that pop out to grab the engine flywheel when you pull the rope; if they are worn smooth or broken, the cord will just pull freely without turning the engine over.
Complete Recoil Assembly Replacement Sometimes, a severe kickback from the engine can shatter the entire plastic or cast-aluminum recoil housing, or the internal hub can melt from friction. In cases of catastrophic failure, rebuilding the individual tiny parts isn't cost-effective. We stock and install complete, bolt-on OEM recoil starter assemblies so you can get back to work immediately.

Signs You Need Recoil Service

The Limp Rope: You pull the cord, and it stays pulled out, dragging on the ground instead of winding back into the engine.
The "Dead Pull": You pull the handle and it offers zero resistance—the rope comes out smoothly but the engine doesn't turn over (broken pawls).
Frayed Cord: You can see the outer jacket of the starter rope peeling back, exposing the white core threads. It is only a matter of time before it snaps.
Grinding or Scraping: You hear a loud metal-on-metal scraping noise from the top or side of the engine while it is running, indicating the recoil spring or pawls are dragging on the spinning flywheel.
The Snap: The rope breaks entirely, leaving you with a handle in your hand and the rest of the cord trapped inside the engine housing. Don’t wear out your shoulder fighting a failing starter or risk a frayed rope snapping mid-pull. Bring your handheld equipment or walk-behind mower to Cullens Supply, and we’ll get it starting smoothly on the first pull again.

Hydrostatic Transmission Repair and Replacement

The hydrostatic transmission is the powerhouse of your zero-turn mower or compact tractor, translating engine RPM into smooth, controllable wheel torque. When a hydro system is healthy, your machine climbs hills effortlessly and steers with precision. When it begins to fail—often due to skipped break-in services, excessive heat, or fluid breakdown—you'll experience sluggish performance, loud whining, or a complete loss of drive power.

At Cullens Supply, we specialize in complete hydrostatic transmission diagnostics, preventative maintenance, and full transaxle replacements for commercial zero-turns, residential mowers, and compact tractors.

Our Hydro & Transmission Services

Preventative Hydro Service & Fluid Changes Heat and contamination are the enemies of hydraulic systems. We perform comprehensive hydro services to protect the precision-machined pumps and motors inside your transmission.
Fluid & Filter Swaps: We drain degraded or burnt hydro oil, replace the spin-on hydro filters, and refill the system with premium synthetic transmission fluid.
Suction Screen Service: For compact tractors, we remove, clean, and reassemble the hydraulic suction screens—a critical step to ensure unrestricted fluid flow and prevent pump cavitation.
Break-In Services: We perform essential 50-hour break-in services to flush out normal metallic break-in wear before it acts like liquid sandpaper inside your pump.
Diagnostics & Component Repair Not every hydro issue requires a complete replacement. We trace issues back to their source to save you time and money.
Leak Detection & Resealing: We replace leaking input shaft seals, axle seals, and O-rings that allow fluid to escape and air to enter the system
.Internal Repairs: For serviceable systems like compact tractor transmissions, we can perform mechanical teardowns to inspect and replace failed internal components, such as damaged rear transmission pinion bearings or cracked housings.
Valve & Pressure Troubleshooting: We diagnose complex hydraulic limitations, such as open-center valve routing issues or fluid heat breakdown caused by deadheaded hydraulic circuits.
Complete Transaxle Replacement For many commercial and residential zero-turn mowers equipped with integrated Hydro-Gear or Tuff Torq transaxles, a catastrophic internal failure means the most reliable fix is a complete swap. If a unit has suffered severe metal-on-metal failure or melted internal bypass valves, we pull the bad drive unit and bolt in a brand-new, factory-sealed transaxle. We perform the critical bleeding and purging procedures to remove all trapped air from the new system, followed by tracking adjustments so your zero-turn drives perfectly straight. Signs Your Hydro Transmission is Failing
Power Loss When Hot: The machine drives fine cold but loses steering response, slows down, or struggles to climb minor inclines after 30 minutes of mowing.
Loud Whining or Groaning: A severe, high-pitched metallic whine when pushing the drive levers forward indicates pump starvation or internal wear.
Pulling to One Side: On a zero-turn, if one wheel lacks the power to keep up with the other even when both levers are fully forward, one transaxle is failing.
Contaminated Fluid: The hydraulic oil looks milky (water contamination), smells burnt or has a visible metal sheen when inspected.
Freewheeling on Hills: The transmission is unable to hold the weight of the machine on a slope when the drive levers are in the neutral position. Whether you need a routine 50-hour hydro fluid flush or a complete compact tractor transmission teardown, our service department is equipped to get your drivetrain pulling hard again.

Engine Repair and Engine Replacement

The engine is the heartbeat of your outdoor power equipment. When it starts surging, burning oil, or suffering a catastrophic internal failure, your work stops completely. Whether you are dealing with a fouled carburetor on a string trimmer or a thrown rod on a commercial zero-turn, proper engine diagnostics and repair are critical to protecting your investment.

At Cullens Supply & Engine Service, we handle everything from routine valve adjustments and tuning to complete engine repowers and diesel teardowns for commercial mowers, compact tractors, and handheld power equipment.

Our Engine Repair & Replacement Services

Advanced Diagnostics & Precision Tuning We don't just throw parts at an engine; we test and tune to factory specifications.
Compression & Leak-Down Testing: We pinpoint internal wear, identifying bad piston rings, blown head gaskets, or unseated valves before tearing the engine apart.
Governor & RPM Adjustments: A machine that bogs down under load or over-revs is often suffering from governor issues. We perform intricate tuning—including static governor adjustments, cross-shaft alignments, and setting governor springs to precise positions—to ensure your engine maintains optimal RPMs when you engage the blades or attachments.
Fuel Delivery Service: We ultrasonically clean and rebuild fouled carburetors and service electronic fuel injection (EFI) systems to cure surging, hunting, and hard-starting issues.
Component Repair & Rebuilds Many severe-seeming engine problems can be fixed without a complete replacement. We replace blown head gaskets, reseal leaking crankcase covers, and install new oil seals. We perform routine valve lash adjustments to fix hard-starting issues on overhead-valve (OHV) engines. We repair and replace failing charging systems, stators, starter motors, and ignition coils.
Complete Engine Replacements (Repowers) When an engine runs out of oil, throws a connecting rod through the block, or suffers severe scoring on the cylinder walls, rebuilding is often more expensive than replacing. We source and install brand-new, factory-warrantied OEM short blocks and complete drop-in replacement engines. We handle all the necessary wiring harness adaptations, muffler alignments, and clutch transfers to get your machine running like it just rolled off the showroom floor.
Diesel & Compact Tractor Engine Service Our mechanical expertise goes beyond standard gas V-Twins. We provide advanced diagnostics, cooling system repairs, and internal teardowns on heavy-duty diesel engines powering compact tractors and commercial machinery. Engine Platforms We Service We carry parts for and service a massive range of powerplants, including:
Commercial Gas V-Twins: Kawasaki, Vanguard V-Twin, Kohler (including the Command PRO CH/CV series), and Briggs & Stratton.
Diesel & Heavy-Duty: Kukje (including 3-cylinder models like the A1700N), Cummins, and other compact tractor diesel platforms.
Handheld & 2-Cycle: ECHO, Shindaiwa, Maruyama, and Honda.Signs Your Engine Needs Major Service
Surging and Hunting: The engine RPM constantly revs up and drops down on its own, usually indicating a dirty carburetor, a failing fuel pump, or a stretched governor spring.
Deep Metallic Knocking: A loud, rhythmic hammering sound from deep inside the engine block is a warning sign of severe internal failure, such as a loose connecting rod.
Heavy Exhaust Smoke: Continuous blue smoke means the engine is burning oil (worn rings or valve guides), while thick black smoke indicates the engine is running far too rich.
Loss of Power When Hot: The engine starts up fine but bogs down, loses compression, or shuts off completely once it reaches operating temperature.
Excessive Oil Consumption: If you have to top off the engine oil every single time you mow, your engine is internally worn and headed for failure. Whether you need a V-Twin repower on a Bad Boy mower or mechanical diagnostics on a diesel compact tractor, our technicians have the expertise to get it running right. Bring your equipment to either our Dublin or Sandersville location to get your engine professionally serviced.

Warranty Work

When a piece of equipment suffers a manufacturer defect or premature failure, you need it fixed fast and fixed right, without the headache of fighting with the factory over coverage. As an authorized, factory-direct warranty service center, Cullens Supply & Engine Service handles both the mechanical repairs and the manufacturer paperwork to get your machines back to work. We are fully authorized to perform warranty diagnostics, parts replacement, and major system overhauls for Bad Boy Mowers & Tractors, ECHO, and Shindaiwa.

Authorized Warranty Services

Bad Boy Mowers & Compact Tractors Whether you are running a residential ZT Elite, a commercial Rebel, or a heavy-duty Bad Boy compact tractor, we handle complete bumper-to-bumper warranty claims.
Tractor Powertrain & Hydraulics: We perform major warranty teardowns on compact tractors, covering everything from hydraulic system defects to complex internal drivetrain repairs, such as failed transmission pinion bearings or cracked housings.
Zero-Turn Systems: We handle warranty replacements for failed PTO clutches, defective Hydro-Gear transaxles, premature engine failures, and structural deck defects.
ECHO & Shindaiwa Handheld Equipment Commercial landscapers and homeowners rely heavily on the 5-year consumer and 2-year commercial warranties offered by ECHO and Shindaiwa. We diagnose and replace defective ignition coils, faulty carburetors, and failed recoil assemblies on string trimmers, leaf blowers, and chainsaws. We ensure your 2-cycle equipment is repaired using exact-match OEM components to keep your factory warranty intact. The Cullens Supply Warranty Process
Factory-Level Diagnostics: We don't just guess at the problem. We perform a complete diagnostic teardown to determine exactly what failed and, more importantly, why it failed, ensuring the issue meets the manufacturer's criteria for a factory defect.
We Handle the Paperwork: Dealing with corporate warranty departments can be frustrating and time-consuming. We submit the diagnostic reports, photographs, and parts requests directly to Bad Boy, ECHO, or Shindaiwa on your behalf.
Genuine OEM Parts: Every warranty repair is completed using 100% genuine original equipment manufacturer parts—no aftermarket shortcuts.
Professional Installation: Our technicians are experienced in factory-authorized repair procedures, ensuring your equipment is reassembled to precise factory torque specs and tolerances. What You Need to Know Before Bringing It In
Proof of Purchase: To file a claim, the manufacturer requires a valid receipt or proof of purchase establishing the date you bought the equipment. If you purchased the machine directly from Cullens Supply, we already have your records on file!
What Isn't Covered: It is important to remember that manufacturers only cover defects in materials or workmanship. Warranty does not cover standard wear items (like belts, blades, and filters), damage from abuse, or engine failures caused by stale fuel, ethanol phase separation, or running straight gas in a 2-cycle engine.

If your Bad Boy, ECHO, or Shindaiwa equipment is acting up and still within its warranty period, drop it off at our service department. We will advocate for you with the manufacturer and get your equipment running the way it was designed to.

What Brands Do We Service?

Mower & Engine Brands We Service

We service most major commercial and residential equipment brands and engine platforms, including:

Equipment Brands
Bad Boy
Hustler Turf
Echo and Shindaiwa
Walker Mowers
John Deere
Toro
Cub Cadet
Craftsman
and others

Engine Brands Serviced
Kawasaki Engine
Kohler Power
Briggs & Stratton
Vanguard
Honda Engines

Service Special

Services Offered at Cullens Supply: