Fan Pulley

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

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

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