Fan Pulley

Belt Drive Systems

Fan Pulley 3914458 for Cummins ISB QSB – Scheduled Maintenance

Fan Pulley 3914458 (cross-reference) for Cummins ISB, QSB, ISC, and QSC engines, forged steel with surface-hardened grooves for sustained high-RPM belt drive operation. Replace at scheduled service intervals or when belt slippage, abnormal vibration, or visible groove wear appears Single pulley swap or full belt-drive refresh — plan based on fleet operating hours and linked wear on tensioners, belts, and water pump bearings Stocking ahead across multiple machines prevents unscheduled cooling system downtime Replacement interval guidance ships with every order to support your fleet maintenance schedule.

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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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Belt Drive Systems

Wear Item Fan Pulley Hub Bearing 04429639 Compatible with Ram 2500

BD35-12DU8A Fan Pulley Hub Bearing, 5.9L/6.7L Diesel, Dual-Lip Nitrile Seals — compatible with Ram 2500–5500 series trucks spanning 1998–2012 model years. Replacing this wear item on a mileage-based schedule prevents cascading damage to the water pump, fan clutch, and belt tensioner. Evaluates best when the cooling system shows early wobble or belt whip symptoms, supporting both single-unit swaps and fleet-level preventive planning. Replacement interval guidance included with shipment for maintenance scheduling accuracy.

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Belt Drive Systems

Fan Pulley 3914458 for Cummins ISB QSB – Service Part

Replacement intervals for this drive component are confirmed and documented with each consignment.

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Belt Drive Systems

3919624 Fan Pulley – Service Part for Cummins & Hyundai Fleet Supply

3919624 Fan Pulley, 7" V-Groove, replacement for Cummins 4B, ISBE, QSB, ISL and Hyundai R-Series excavators, HL-Series wheel loaders — inspect at every belt service interval; groove wear and bearing play are early indicators that proactive replacement avoids unplanned overheating and repeat disassembly. Fits broad Cummins B, C, L and Q engine families powering Hyundai fleets Typical replacement aligned with belt and tensioner cycles for consolidated downtime Minimum order one piece; recommended replacement schedule included with shipment

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Belt Drive Systems

Fan Pulley Hub Bearing BD35-12DU8A – Service Part for Dodge Ram

Fan Pulley Hub Bearing BD35-12DU8A — replacement for Dodge Ram 2500/3500/4500/5500 (1998–2012), pre-lubricated sealed design with heat-treated raceways. Monitor for pulley noise, belt misalignment, or rising coolant temps under load — replacing this bearing at early wear signs prevents secondary damage to belts, tensioners, and water pumps. Plan fleet-level preventive maintenance rather than reactive ordering to avoid unplanned downtime on 5.9L/6.7L pickups. Replacement interval guidance included with shipment to support your long-term service planning.

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Belt Drive Systems

3914458 Fan Pulley for Cummins ISB QSB – Service Part

3914458 Fan Pulley for Cummins ISB, QSB, ISC engines — compatible replacement for accessory drive systems requiring reliable cooling performance. Positioned at the front of the belt drive, this pulley directly supports thermal stability under continuous load Replace during scheduled service intervals to prevent bearing wear from cascading into tensioner and water pump failure Fits ISBE CM800, QSB4.5 CM850, 6CTA, 4B3.9, and other Cummins mid-range platforms Older generation engines remain supported with verified cross-reference data and ongoing availability.

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Belt Drive Systems

Wear Item Fan Pulley 3919624 Compatible with Cummins Hyundai

Fan Pulley 3919624, 7" V-Groove — replacement for Cummins 4B, ISBE, QSB, ISL, ISC, QSL, QSC and Hyundai R130W–R430LC excavators, HL720–HL760 wheel loaders. Fits belt drive systems where pulley groove wear causes belt slip, reduced fan RPM and undetected cooling loss before any alarm triggers Replace at scheduled service intervals rather than waiting for belt failure — a worn pulley transfers misalignment to any new belt fitted Cross-reference numbers 3908819, 3903221 (interchange reference) cover superseded variants across mixed-age Cummins fleets under one stocking SKU Older Hyundai and Cummins platform support remains available as dealer supply thins, with replacement interval guidance provided per order.

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Belt Drive Systems

Clutch Bracket Fan Pulley Hub Bearing BD35-12DU8A – Scheduled Maintenance

Clutch Bracket Fan Pulley Hub Bearing BD35-12DU8A, compatible with Dodge Ram 2500–5500 5.9L/6.7L engines — aftermarket service part for belt drive system maintenance. Replace during scheduled belt and tensioner service intervals to prevent cascading cooling failures; watch for fan wobble, bearing noise, or belt misalignment as early wear indicators Single bearing swap versus full clutch bracket assembly exchange depends on labor cost and adjacent component condition Replacement interval guidance included with shipment to support fleet maintenance planning.

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Belt Drive Systems

7″ V-Groove Fan Pulley 3919624 for Cummins & Hyundai Excavators

Stop unexpected fan belt slippage and overheating on your Cummins or Hyundai excavator — this 7" V-Groove fan pulley 3919624 delivers OEM-equivalent grip and alignment, keeping coolant flow stable even under sustained high-load operation. Built to match the exact pitch diameter and groove angle of factory-spec pulleys, it eliminates premature wear caused by mismatched taper or off-center rotation — a common failure point with generic replacements. Direct fit for R210W-9A, R430LC-9A, and Cummins 6B5.9 engines — no machining or adapters needed Replaces 3919624, 3908819, and 3903221 — verified cross-reference against Cummins’ latest service bulletins Made from heat-treated SAE 1045 steel with precision-ground V-grooves — critical for maintaining proper belt tension across full RPM range Backed by XUNPO’s 6-month warranty and same-day part verification — because downtime costs more than the pulley

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Belt Drive Systems

Fan Pulley 3914458 for Cummins ISB QSB Engines – Direct Replacement

Stop unexpected fan belt slippage and overheating on your Cummins-powered equipment — this fan pulley 3914458 delivers OEM-equivalent concentricity and surface hardness (HRC 42–46) right out of the box, so your ISB or QSB 6B5.9 engine stays cool under load without downtime. Fits 12+ Cummins engine variants including ISB CM850, QSB4.5 CM2850, and legacy B5.9 G — no guesswork on compatibility Pre-tested for runout ≤ 0.05 mm at 3,000 RPM: critical for avoiding premature bearing wear in high-hour applications Ships from our Guangzhou warehouse same day if ordered before 3 PM CST — no waiting weeks for OEM backorders Backed by XUNPO’s 6-month warranty and direct technical support from Cummins-certified parts engineers

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Belt Drive Systems

Clutch Bracket Fan Pulley Hub Bearing BD35-12DU8A for Dodge Ram 2500–5500

Stop cooling system failures and avoid costly downtime with the Clutch Bracket Fan Pulley Hub Bearing BD35-12DU8A — a direct OEM-replacement bearing engineered for Dodge Ram 2500–5500 trucks (1998–2012, including 6.7L models). Unlike generic assemblies that skip precision preload calibration, this unit ships pre-set to factory-spec axial play tolerance — critical for fan clutch engagement consistency and thermal management reliability. Fits all listed Ram chassis with exact mounting geometry and bolt pattern alignment — no shimming or machining needed Cross-references 14 OEM and aftermarket numbers, including 04429639 and 68038177AA, so you get one trusted part instead of juggling multiple SKUs Made with ISO-certified bearing steel and sealed double-lip nitrile rubber shields — essential for resisting coolant mist and road grime ingress in heavy-duty duty cycles Ready to ship from our Guangzhou warehouse: 1-piece MOQ, 2–5 working day dispatch, full 6-month warranty against manufacturing defects

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