Belt Tensioner

Belt Drive Systems

Belt Tensioner 3936202 3917485 3964636 for Cummins Engine – Overhaul Grade

Belt Tensioner 3936202 3917485 3964636, Cummins 4BT/6BT Engine — replacement for Hyundai R130LC-3 through R250LC-3 excavators. Scheduled wear item in the Cummins B-series belt drive system; replacement at planned intervals prevents unplanned belt failure and accessory drive loss Replace alongside belts and idler pulleys at major service milestones for complete system refresh Stocking ahead supports ageing Hyundai R-series fleets where dealer support thins over time Cross-reference verification covering superseded numbers provided before fleet-level commitment.

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Belt Drive Systems

Belt Tensioner 3976832 3911621 – Scheduled Maintenance

Belt Tensioner 3976832 3911621 for Cummins 4B3.9, 6B5.9, 6C8.3 and Hyundai R290LC-7, HL757-7 — New Aftermarket, ISO 9001 certified supply. Replace tensioner and belt as a matched pair at scheduled service intervals to prevent mismatched wear Worn units accelerate belt degradation, stressing alternator bearings and water pump seals across the drive system Superseded references 3973825, 3937556, 4063951 consolidated for mixed-generation fleet planning Older Cummins variants remain available as brand-channel support thins Replacement cycle guidance and cross-reference sheet ship with every consignment to support fleet maintenance documentation.

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Belt Drive Systems

Belt Tensioner 3937553 for Cummins Engines – Fleet Supply

Belt Tensioner 3937553 for Cummins 4BT, 6BT, 6CT, NT855 engines — replacement for B3.9L, 5.9L, 4BTA, and 6BTA belt drive systems, ISO 9001 certified aftermarket supply. Spring force degradation and belt slippage signal replacement timing during planned service intervals. Replace tensioner alongside belts, idler pulleys, and fan hub bearings to avoid repeat downtime within one maintenance cycle. Single-component swap suits mid-cycle correction; full front-end belt drive renewal aligns with overhaul planning. Fleet maintenance schedules supported with replacement interval guidance and long-term supply commitment for aging Cummins B-series platforms. (Record ID: 8862)

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Belt Drive Systems

Belt Tensioner 320/08651 320/08657 for JCB 3CX 4CX – Fleet Supply

Replacement interval recommendations included with shipment to support your fleet maintenance planning.

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Belt Drive Systems

Belt Tensioner 504315786 504028028 87803067 | Service Part for New Holland T6080 T7.170

Belt Tensioner 504315786 504028028 87803067 — replacement for New Holland T6080, T7.170 and compatible tractor, loader models, high-strength steel arm with dual-sealed pulley bearing. Fits engines including F4DFE6132, F4HFE613 series across TS, T6000, T7 and B-series machines Typical wear signs include cold-start belt chirp, arm oscillation under load and bearing noise at idle Replace tensioner during scheduled belt-drive service intervals to prevent secondary damage to belts and pulleys OEM reference numbers 504028028, 87803067 are cross-reference only. Service interval recommendations available with shipment for fleet maintenance planning.

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Belt Drive Systems

Drive Belt & Tensioner Assembly for Bobcat S510 S530 – Scheduled Maintenance

7257359 Drive Belt & Tensioner Assembly, EPDM with Aramid Reinforcement — replacement for Bobcat S510, S530, S550, S560, S570, S590, S595, T550, T590, T595 skid steer and track loaders. Spring-loaded automatic tensioner included as matched assembly, avoiding new belt wear from degraded pulley force EPDM compound rated to 120°C suits high-temperature engine bays in construction and landscaping duty cycles Scheduled replacement at service intervals prevents unplanned downtime and cascading pulley damage Replacement interval recommendations ship with every order to support your fleet maintenance plan.

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Belt Drive Systems

Belt Tensioner Pulley 7269057 for Bobcat Loaders – Fleet Supply

Belt Tensioner Pulley 7269057, ISO-certified aftermarket replacement for Bobcat A770, S630–S850, T630–T870 loaders — governs belt alignment and accessory drive reliability across the power transmission system. Replace on a planned schedule to avoid belt shredding and cascading damage to alternator or water pump Watch for squeal under load, pulley wobble, or abnormal bearing noise as early wear indicators Pair with belt and idler pulleys during scheduled engine service for complete belt drive renewal Cross-reference 7269057 / 7141788 (interchange reference only). Replacement intervals and fleet stocking guidance shipped with every order.

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Belt Drive Systems

Belt Tensioner RE548027 for John Deere 4045 6068 – Scheduled Maintenance

RE548027 Belt Tensioner for John Deere 4045 and 6068 engines, new aftermarket — compatible with 3029, 6090, 6125, and 6135 series across agricultural tractors, excavators, and combine harvesters. Replacing the tensioner at scheduled intervals prevents spring fatigue and pivot wear that lead to belt slippage, overheating, and alternator bearing overload Inspect the full belt drive system — belt condition, idler pulleys, and pulley alignment — at the same service window to consolidate labor and reduce repeat downtime Proactive stocking is recommended for fleet operators, given the low cost of a tensioner versus the machine-down impact of accessory drive failure Older John Deere models remain in continuous supply, and replacement interval guidance is included with every shipment.

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Belt Drive Systems

Belt Tensioner 3976834 3957434 – Scheduled Maintenance for Cummins 6BT 6CT

Belt Tensioner 3976834 3957434, replacement for Cummins 6BT5.9, 6CT8.3, ISBE6.7 engines — ISO-certified aftermarket, new condition. Replace at scheduled intervals before spring fatigue causes belt slip, accessory overload, or alternator failure. Watch for bearing noise, pulley wobble, or decaying spring force as wear indicators. Consider swapping the full belt-drive set (belt, idler pulleys, tensioner) during planned service windows to avoid split downtime. Legacy 6BT and 6CT platforms remain in continuous supply for fleet life-extension programs.

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Belt Drive Systems

Drive Belt Tensioner for Bobcat T140 T180 T190 – Service Part

6735884 Belt Tensioner for Bobcat T140, T180, T190, T550, T590 compact track loaders — high-strength steel pulley with sealed integrated bearing for accessory drive systems. Predictable wear item: bearing noise, belt slip, or pulley wobble signal replacement time before collateral damage to alternator or water pump Pair with a fresh drive belt at scheduled service intervals to avoid unscheduled downtime across fleet operations Replacement interval recommendations included with shipment for planned maintenance alignment.

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Belt Drive Systems

Belt Tensioner Kit 6662997 for Bobcat – Scheduled Maintenance

Belt Tensioner Kit 6662997 for Bobcat Skid Steer & Track Loaders, Complete Assembly with Idler Pulley and Spring — compatible with 28+ Bobcat models including S130–S300, T140–T300, A220–A300 series. Replaces the entire tensioner assembly rather than just the pulley, addressing spring fatigue and bushing wear that are invisible without disassembly. Typical replacement indicators include belt squeal under load, visible arm oscillation at idle, and bearing noise from the idler pulley Kit includes all fasteners, bearings, O-ring, and retaining hardware for a complete refresh in one service interval Scheduled replacement intervals recommended for fleet maintenance planning, with legacy model support for older Bobcat 653, 751, and 753 series loaders.

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Belt Drive Systems

Cooling Fan Belt Tensioner Kit 7302291 for Bobcat – Service Part

7302291 Cooling Fan Belt Tensioner Kit for Bobcat skid steer, track and all wheel loaders — replacement for OEM cross-reference 7302291. Fits models including 753, 863, S185, S250, T190, T300 and others in the Bobcat range Tensioner wear typically shows as belt squeal or rising coolant temperature; replacing at planned service intervals avoids unplanned overheating and protects the full cooling circuit Scheduling this kit into seasonal maintenance plans keeps older machines operational where dealer support is thinning Replacement interval guidance supplied with each order to support fleet-level maintenance planning.

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