Belt Drive Systems
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Belt Drive Systems
398 items
Belt Drive Systems
139T 1-1/8″ Rear Drive Belt for Harley Touring – System-Matched
<p><strong>40024-04 Rear Drive Belt, 139T 1-1/8"</strong> — compatible with Harley Touring FLHR, FLHT, FLHX models (2004–2006). Aramid-reinforced EPDM compound resists heat, ozone, and oil mist in final-drive belt systems. Replace alongside matched sprockets, tensioners, and seals to maintain correct system tolerances and address root-cause failure. Multiple OEM cross-references available (40024-04, 1204-0063, 58-439).</p> <ul> <li>Fits Harley Davidson Touring family powertrains</li> <li>ISO 9001 manufacturing standard</li> <li>Engine system-matched supply prevents premature re-failure</li> </ul> <p>Matched overhaul kits and adjacent components ship as one verified consignment.</p>
Belt Drive Systems
Fan Belt 84331239 for New Holland Loaders – Engine Grade
<p><strong>84331239 Fan Belt</strong> – EPDM rubber compound with aramid tensile cords, –40°C to +120°C range</p> <ul> <li>Fits New Holland L221, L223, L225, L228, L230, C227, C232, C238 loaders (cross-reference only)</li> <li>Part of the engine cooling drive system — matched tensioner and pulley inspection recommended during replacement</li> <li>Surface rib profiling aligned to water pump and alternator pulley geometry for consistent drive</li> <li>Engine serial number affects routing; confirm build variant before ordering</li> <li>Overhaul kit contents verified item-by-item to match your engine specification</li> </ul>
Belt Drive Systems
Fan Pulley 3914458 | Matched Set for Cummins ISB QSB
<p><strong>Fan Pulley 3914458</strong> — replacement for Cummins ISB, QSB, 6CTA, ISC and QSC engine families, individual retail box with anti-rust coating.</p> <ul> <li>Belongs to the belt drive and cooling system; pair with matched belts, tensioner and water pump during overhaul to prevent repeat failures from misalignment or uneven wear</li> <li>Confirm CM-series build code (e.g. ISB CM850, QSB4.5 CM850) and belt groove profile before ordering to rule out accessory drive variant differences</li> <li>Overhaul kit contents verified item by item against your engine serial and rebuild history</li> </ul>
Belt Drive Systems
Rebuild Kit Deck Belt 108-7192 Compatible with Toro Z480
<p><strong>108-7192 Deck Belt</strong>, 108-inch length, 0.5-inch width — replacement for Toro Z480 48" zero-turn mower dual-belt deck drive system.</p> <ul> <li>Operates within the engine-driven deck system, transferring torque to both blade spindles where matched cog profile and tension prevent secondary drivetrain wear during cutting cycles.</li> <li>High-modulus polyester cord with neoprene compound resists stretching and oil exposure across -10°C to +60°C, holding ±0.02-inch tolerance for proper pulley wrap alignment.</li> <li>Confirm machine model 74352 or 74353 and inspect adjacent spindle bearings and tensioners for concurrent replacement needs.</li> </ul> <p>Overhaul kit contents and matched belt sets verified item-by-item before dispatch.</p>
Belt Drive Systems
System-Matched Drive & Starter Belt Kit – Fits EZGO RXV/TXT
<p><strong>Drive & Starter Belt Kit 606136 / 606138</strong> — matched set for Kawasaki 13 HP engines in EZGO RXV/TXT platforms, EPDM aramid-cord starter belt (1/2" × 35.5") and polyester drive belt (1" × 35").</p> <ul> <li>Both belts supplied as a verified pair to maintain consistent tension and uniform wear across the belt drive system during engine overhaul</li> <li>Dimensional tolerance held to ±0.5 mm for correct pulley alignment and contact pattern</li> <li>Addresses root-cause failure by eliminating mismatched stretch between old and new belts</li> </ul> <p>Complete matched set inspected for dimensional and tensile conformance before dispatch.</p>
Belt Drive Systems
Alternator Pulley 3926858 Replacement for Cummins ISB6.7 Powertrain
<p><strong>Alternator Pulley 3926858 Belt Pulley for Cummins ISB6.7 / ISC8.3 / QSB6.7 Engines</strong> — cross-reference numbers 3965146 and 3965147 verified against engine serial ranges for accurate fitment.</p> <ul> <li>Forged 45# carbon steel with zinc-nickel plating, HRC 42–46 surface hardness</li> <li>V-groove contact angle 34° matches original belt profile to prevent rib cracking</li> <li>Pair with belt and tensioner in the same order for matched belt drive system refresh</li> </ul> <p>Overhaul kit contents and dimensional grades confirmed per your engine's rebuild history before dispatch.</p>
Belt Drive Systems
Cummins ISB-Compatible Belt Tensioner Assembly – Overhaul Component
<p><strong>3936213, 5259022, 3976831 Belt Tensioner Assembly</strong> — compatible with Cummins ISB, QSB, 6C, and B6.7 engines, featuring hydraulic damping and forged SAE 1045 steel construction. Part of the front-end belt drive system, this tensioner maintains correct serpentine belt routing across alternator, water pump, and fan drives during variable-RPM off-highway operation. Engine serial variant differences within ISB and QSB families can alter bracket geometry — confirm your build sheet before ordering. Overhaul kit contents and matched components verified for system-level rebuild sequencing.</p> <ul> <li>Cross-reference OEM numbers 3936213, 5259022, 3976831 for identification only</li> <li>IP65 sealing rated for –20°C to +110°C operating range</li> <li>720-hour salt-spray corrosion resistance per ASTM B117</li> <li>Complete assembly with pulley, ready for installation</li> </ul> <p>Dimensional tolerances held to ±0.05 mm with quality inspection records covering pivot torque and damping consistency supplied with each shipment.</p>
Belt Drive Systems
REM-1345 Fan Belt Compatible with CAT Komatsu – Engine Grade
<p><strong>REMF-1345 Fan Belt</strong> — high-tensile synthetic rubber compound with polyester cord reinforcement for engine cooling systems.</p> <ul> <li>Compatible with CAT 320D, 320D2, 330D, Komatsu PC200-8, PC220-8, Volvo EC300D, EC480D, Sany SY215C and additional excavator models</li> <li>Designed to maintain correct tension under sustained thermal cycling, supporting radiator fan drive during high-load operations</li> <li>Continuous operating temperature rated at 110°C with anti-ozone and heat-resistant additives</li> </ul> <p>Inspect belt tensioner, idler pulleys and fan hub bearings during the same service event — matched replacement prevents premature re-failure and repeat teardown.</p> <p>Dimensional tolerance and tensile test records verified and shipped with every order.</p>
Belt Drive Systems
Rebuild Kit Ribbed Serpentine Belt 3911584 Compatible with Cummins
<p><strong>Rebuild Kit Ribbed Serpentine Belt 3911584 (cross-reference), 8/K EPDM Belt</strong> — engineered for Cummins B3.9L, 4BT, 6BT, 6BTA, 6BTAA, and ISB CM550 engine accessory drive systems.</p> <ul> <li>Designed for matched replacement alongside tensioners, pulleys, and adjacent seals to prevent repeat failures from misalignment or coolant contamination.</li> <li>EPDM compound with high-modulus polyester cords resists heat and ozone in diesel engine bays, maintaining dimensional tolerance within ±0.3 mm.</li> </ul> <p>Matched accessory-drive component sets ship together, verified against your engine serial and rebuild history.</p>
Belt Drive Systems
Drive Belt Tensioner Pulley for Bobcat Skid Steer – Engine Grade
<p><strong>6735884 Belt Tensioner Pulley Assembly, Heat-treated 40Cr Steel, Sealed Bearings</strong> — compatible with Bobcat 653, 751, 753, 763, 773, 7753 skid steer loaders.</p> <p>Part of the engine belt drive system; replacing tensioner without inspecting associated belts and idler pulleys risks repeat failure within hours. Cross-reference 6711698 verified for superseded number coverage across engine serial variants.</p> <ul> <li>System-matched belt drive components supplied together for complete overhaul</li> <li>Fitment confirmed by engine model and serial number before dispatch</li> <li>Overhaul kit contents verified item-by-item against your engine build record</li> </ul>
Belt Drive Systems
Belt Tensioner 3936202 – Rebuild Kit for Cummins 4BT 6BT Engines
<p><strong>3936202 Belt Tensioner for Cummins 4BT/6BT Engines</strong> — forged steel bracket with zinc-nickel electroplated surface treatment, operating from –20°C to +110°C. Compatible with Hyundai R210LC-7, R250LC-3 and related excavators during engine overhaul rebuilds.</p> <ul> <li>Replace alongside belts, pulleys, and accessory drive seals to ensure matched condition across the entire front-end drive system after rebuild</li> <li>Engine serial variants across 4BT, 6BT, 6C8.3, and QSB6.7 families require verification before ordering to confirm correct tensioner variant</li> <li>Overhaul kit contents checked item-by-item before dispatch, ensuring all belt drive components ship as a matched set</li> </ul>
Belt Drive Systems
Engine Grade Belt Tensioner 87326910 J914086 Replacement for CASE
<p><strong>Belt Tensioner 87326910 J914086, forged steel housing with sealed IP65 bearings</strong> — replacement for CASE excavator, loader, and dozer engines across CX, 580, 680, 850, and 888 series.</p> <ul> <li>Operates within the <strong>engine belt drive system</strong>, maintaining correct fan, alternator, and coolant pump belt tension during rebuild</li> <li>Matched sets available with pulleys and belts to address root-cause slippage or overheating faults</li> <li>Spring rated to 1.2 million cycles; pivot shaft held to ±0.02 mm tolerance for consistent preload</li> <li>Fits CASE engine variants including 4390, 4391, 6590, and 6830T families</li> </ul> <p>Overhaul kit contents verified item-by-item against your specific engine build before dispatch.</p>