Belt Tensioner - Heavy Equipment Parts | XUNPO Global Distribution

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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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 Tensioner 3936202 3917485 3964636 | Overhaul Grade for Cummins

Fleet maintenance teams receive replacement interval recommendations with each consignment

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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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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 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 Tensioner 504315786 504028028 87803067 for New Holland – Service Part

Belt Tensioner 504315786 504028028 87803067, Ductile Iron Housing, SAE 9260 Spring — replacement for New Holland T6080, T7.210, TS-series and related agricultural tractors. Spring force decay and pivot bushing wear develop gradually; inspect during scheduled service intervals before belt slippage causes accessory drive loss Evaluate together with belt condition, pulley alignment and idler bearings to avoid premature re-failure on high-hour machines High-consequence, low-cost item — stocking one or two per engine family eliminates emergency orders during peak season Replacement cycle guidance included with shipment for your fleet maintenance planning.

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Belt & Tensioner Assembly for Bobcat S510-T595 – Service Part

7257359 Belt & Tensioner Assembly for Bobcat S510–T595 — EPDM rubber with aramid fiber reinforcement, compatible with Bobcat S-Series and T-Series skid steer loaders. Scheduled belt and tensioner replacement prevents unplanned downtime and protects adjacent pulleys from misalignment wear. Replace the full assembly rather than the belt alone to restore correct tension and extend service intervals. Replacement interval recommendations included with shipment to support fleet maintenance planning.

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Belt Tensioner Pulley 7269057 for Bobcat Loader – Fleet Supply

Belt Tensioner Pulley 7269057, forged 40Cr steel housing, SPZ groove profile — compatible with Bobcat A770, S630, S650, S750, S770, S850, T630, T650, T750, T770, T870 skid steer and compact track loaders. Watch for bearing noise, uneven belt wear, or tension loss under thermal cycling as early replacement indicators Planned swap prevents cascading damage to belts, fan drives, and cooling components across your fleet Cross-reference 7141788 (interchange reference only) Replacement interval guidance included with every shipment to support long-term fleet maintenance planning.

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Belt Tensioner 3976834 3957434 – Fleet Supply for Cummins ISBE6.7 6CT

Belt Tensioner 3976834 3957434 — replacement for Cummins ISBE6.7, 6CT, 6BT5.9 engines, high-strength gray iron housing, dual-lip NBR seal rated to 120°C. Typically swapped alongside the serpentine belt at scheduled service intervals; spring force degrades over thermal cycles, causing belt flutter and accelerated pulley wear Induction-hardened pivot shaft (HRC 52–56) supports multiple replacement cycles without housing refurbishment IP65 dust protection suits mining, construction, and high-vibration environments Replacement interval guidance included with shipment to support fleet maintenance planning.

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6735884 Belt Tensioner Pulley for Bobcat T140 T180 – Fleet Supply

6735884 Belt Tensioner Pulley, Forged Carbon Steel (AISI 1045), HRC 58–62 Induction Hardened — compatible with Bobcat T140, T180, T190, T550, T590 Compact Track Loaders. Typical wear signs include squealing, belt slippage, and pulley misalignment; replace at scheduled service intervals before bearing failure damages the belt and cooling circuit. Interchange reference: 6711698 (cross-reference only). Recommended replacement intervals and wear guidance shipped with each order.

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Belt Tensioner Kit for Bobcat S130 S300 T200 – Fleet Supply

Belt Tensioner Kit 6662997, 6702474, 6725212 — replacement for Bobcat S130, S300, T200 skid steer and track loaders. Includes idler pulley with 608ZZ sealed bearings, spring arm, and O-ring for complete belt drive service. Replace at first signs of belt squeal, pulley wobble, or spring tension decay — full kit exchange prevents repeat failures from worn mating components Inspect drive belt condition and pulley alignment at the same service interval to extend belt drive system life across mixed S-series and T-series fleets Older Bobcat models like the 873 and 753 remain supported with planned maintenance stocking available. (记录ID: 9504)

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