Fan Pulley for Cummins 3.9-8.9L, Replaces 3908447/3914462 | Fits Dodge Cummins 4B 6B 4BT 6C 6CT 8.9L QSB Diesel Engine. Replaces 3908447 3914462. Heavy-duty fan belt pulley.

SOLIDAI Premium Aftermarket Fan Belt Pulley - Reliable Engine Cooling AccessoryKeep your engine's accessory drive running smoothly with the SOLIDAI Fan Belt Pulley. Precision-engineered to match original equipment dimensions, this heavy-duty pulley serves as a reliable replacement for worn or damaged factory parts, preventing belt wear and ensuring optimal cooling system performance.[CRITICAL] Verify Compatibility Before Purchasing: Cross Reference: Must replace part number 3908447 or 3914462. Compatible Engines: Fits Cummins 4B, 6B, 4BT, 6BT, 6CT, 6C, 8.9L QSB, ISB, QSB series. Note: Even within the same series, variations exist. Always check your original pulley number!Why Choose SOLIDAI? Built to Last: Constructed with high-strength materials to resist cracking and premature wear under high-stress conditions. Perfect Alignment: Helps maintain correct belt tension, eliminating squeaks, vibration, and belt slippage. Cost-Effective Solution: Offers reliable performance and fitment at an affordable aftermarket price.Installation & Maintenance: Professional installation is strongly recommended. Incorrect alignment or improper torque can lead to belt noise or premature system failure. Please use your factory service manual for installation specs.SOLIDAI is an independent aftermarket brand. This is a replacement component, not an original equipment manufacturer product. Please verify equipment fitment before purchasing. Professional installation recommended.

• [CRITICAL COMPATIBILITY NOTICE] Please verify your original part number before ordering. This fan belt pulley is compatible with Cummins engine part numbers 3908447 or 3914462. (Note: Does not fit all models of the listed engine series)
• [WIDE APPLICATION] Premium aftermarket replacement component engineered for Cummins 4B, 4B4.5, 4BT, 6B, 6C, 6CT, 6CTA8.3, 6CTAA8.3, 8.9L QSB, ISB3.9, ISB5.9, QSB4.5, QSB6.7 models
• [HEAVY-DUTY CONSTRUCTION] Manufactured from high-grade, wear-resistant materials to withstand extreme engine temperatures and rigorous operating conditions, ensuring long-lasting durability
• [SMOOTH & QUIET OPERATION] Precision-engineered to ensure perfect belt alignment, reduce friction, prevent belt slippage, and eliminate annoying squeaking noises from your accessory drive system
• [INSTALLATION NOTE] Designed for a direct fit. Professional installation is highly recommended; please refer to your vehicle service manual for the exact torque specifications