Belt Drive Systems

Belt Drive Systems

Alternator Pulley 3926858 3965146 | Overhaul Grade for Cummins 6C8.3 ISB6.7

Alternator Pulley 3926858 3965146 for Cummins ISB6.7, ISC8.3, QSB6.7 and related platforms — high-strength forged steel, precision-machined groove profile. Sits at the front-end accessory drive; groove micro-pitting leads to belt slippage and alternator bearing stress — schedule replacement alongside serpentine belt and tensioner to avoid reactive downtime Fits 6C8.3, B6.7, L9, N14 and legacy Cummins series where brand support is thinning Replacement interval guidance and cross-reference sheet included with shipment

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Belt Drive Systems

Belt Tensioner Assembly 3936213 5259022 3976831 – Fleet Supply for Cummins

Belt Tensioner Assembly 3936213 5259022 3976831 — replacement for Cummins 6C, ISB, QSB, 4B3.9, B4.5, 6B5.9, and B6.7 engine platforms Replace during scheduled belt drive service intervals alongside serpentine belts and idler pulleys to prevent cascading accessory drive failures Watch for belt chirp, pulley wobble, or declining spring force as replacement triggers under continuous-duty thermal cycling A380 aluminum alloy housing with case-hardened 40Cr steel pivot shaft and dual-lip NBR sealing Recommended replacement intervals and service documentation included with shipment for fleet planning alignment.

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Belt Drive Systems

Aftermarket REMF-1345 Fan Belt – Service Part for CAT 320D Komatsu PC200

REMF-1345 Fan Belt — High-tensile synthetic rubber, -25°C to +120°C — replacement for CAT 320D, Komatsu PC200 and compatible excavators. Planned wear item: replace during scheduled cooling system service to avoid unplanned overheating downtime Typical failure signs include glazing, cracking or squeal — synchronise with tensioner and pulley inspection Supports lifecycle extension for older 320 and PC200 series machines where dealer support is thinning Replacement interval recommendations supplied with every order to align belt stock with your fleet service calendar.

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Belt Drive Systems

Drive Belt Tensioner Pulley Assembly 6735884 – Scheduled Maintenance for Bobcat 653 751 753

Drive Belt Tensioner Pulley Assembly 6735884, forged AISI 1045 carbon steel, sealed 6204-2RS bearing — replacement for Bobcat 653, 751, 753, 763, 773, 7753 skid steer loaders. Replace at routine service intervals when bearing noise, belt slippage, or pulley flange wear appear, preventing unplanned downtime and secondary drive damage Fits Bobcat 653, 751, 753 series machines; cross-reference 6711698 for legacy part numbers Maintenance schedule guidance and quality inspection records ship with every order to support fleet-level planning.

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Belt Drive Systems

Belt Tensioner 3936202 3917485 3964636 | Overhaul Grade for Cummins

Fleet maintenance teams receive replacement interval recommendations with each consignment

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Belt Drive Systems

Belt Tensioner 87326910 J914086 for CASE 650K 750K 850K – Fleet Supply

Belt Tensioner 87326910 J914086 — replacement for CASE 650K, 750K, 850K dozers and compatible excavators, loaders, tractors. Proactive replacement at scheduled service intervals prevents belt slippage, overheating, and secondary damage to pulleys and cooling systems Replace alongside belts and idler pulleys as a matched set to avoid re-entry labor costs Recommended replacement interval guidance provided with shipment

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Belt Drive Systems

Hyundai-Compatible Belt Tensioner 3976832 3911621 – Wear Item

3976832 3911621 Belt Tensioner, SAE 1045 Steel — compatible with Cummins 4B3.9, 6B5.9, QSB5.9 engines in Hyundai R305LC-7, R290LC-7, HL740-9 series machines. Scheduled wear item in the accessory drive system — replace during engine overhauls or major service intervals to prevent belt slippage and cascading component damage Fits continuous-duty hydraulic pump and cooling fan drives across excavator and wheel loader fleets Legacy models like R290LC-3 and HL720-3C remain supported with verified cross-reference 3937556, 3936207 Replacement interval guidelines included with shipment to support your fleet maintenance planning.

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Belt Drive Systems

Belt Tensioner 3937553 for Cummins 4BT – Scheduled Maintenance

Belt Tensioner 3937553 for Cummins 4BT/6BT, Forged SAE 1045 Steel — compatible with B3.9L, B5.9L, 4BTA, 6BTA, 6CT, and NT855 engines. Loss of preload or pulley wobble signals replacement time; swapping the tensioner with belts and idler pulleys during scheduled service prevents accessory drive failures and second teardowns. - Fits Cummins B-series belt drive geometry Heat-treated to HRC 40–45 for durable service life MOQ 1 piece, 6-month warranty against manufacturing defects Recommended replacement intervals supplied with shipment for your fleet maintenance planning.

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Belt Drive Systems

Drive Belt 106-4383 for Toro Groundsmaster 322-D – Service Part

Drive Belt 106-4383 for Toro Groundsmaster 322-D, Aramid-Reinforced, Trapezoidal Profile — replacement for commercial mower fleet service cycles. Fits Toro Groundsmaster 322-D, 325-D, 327, 328-D, 345, and Lawn-Boy units Plan replacement at first signs of edge cracking, slippage, or elongation under sustained load Aramid cord maintains tension across extended intervals; trapezoidal profile preserves pulley geometry Scheduled wear part — replacement interval guidance and long-term supply continuity for aging mower models available with every order.

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Belt Drive Systems

Upper Drive Belt Replacement for Carrier Transicold X2 Long-Life

Upper Drive Belt 50-00178-24 — high-tensile chloroprene rubber with aramid cord reinforcement, 12.7 mm pitch length, compatible with Carrier Transicold X2 1800, 2100, 2500 and Ultra XT/XTC refrigeration units. Replace on schedule by operating hours to prevent edge cracking, glazing and elongation from escalating into compressor clutch damage and unplanned cold-chain downtime Fits Extra XT, Ultra XT, Ultra XTC, X2 1800, 2100, 2100A, 2100R, 2500A, 2500R models — inspect tensioners and pulleys at the same interval to decide whether a belt-only swap suffices Aging X2 1800 and 2100 units remain fully supported with consistent batch supply from our Guangzhou warehouse for long-term fleet planning.

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Belt Drive Systems

Wear Item Wheel Drive Belt Compatible with Exmark Metro

265-458 Wheel Drive Belt, Neoprene Rubber with Polyester Cord — compatible with Exmark Metro walk-behind mowers including M15KA362, M16KA483, MG481KA362 and related variants. Replace drive belts at signs of cracking, glazing or slippage before peak mowing season to avoid contract losses from unplanned downtime Inspect idler pulleys and tensioners at each belt change — worn pulleys accelerate belt failure across the drivetrain Stock quantities should align with fleet size and seasonal operating hours for predictable service intervals Older Metro models remain supported with cross-reference verified replacements including 1323288 and 6586BR interchange references, keeping aging fleets operational past OEM lifecycle.

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Belt Drive Systems

Fan Pulley 7″ 3919624 | Overhaul Grade for Cummins Hyundai

3919624 Fan Pulley 7" V-Groove — replacement for Cummins 4B, 6B, ISBE, QSB and Hyundai R-series excavators, wheel loaders, and forklifts. High-strength cast iron with precision-machined groove surface. Scheduled replacement at belt service intervals prevents cascading wear on tensioners and water pump bearings across your fleet. Typical wear signals: belt tracking drift, edge fraying, or visible groove surface degradation. ISO 9001 production, single-piece MOQ with replacement cycle guidance included per shipment. Fits Hyundai R130LC through R430LC-9A, HL730–HL960 loaders, and 100D–250D forklift series.

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