Idler Pulley Support Cummins 4063737 | 3635034, 4991240

Cummins 4063737 Idler Pulley Support

The Cummins 4063737 Idler Pulley Support is a heavy-duty bracket designed to secure the accessory drive belt idler pulley in its proper position. Engineered specifically for demanding commercial truck and industrial applications, this support bracket ensures the precise alignment and tension of the engine’s belt drive system. By maintaining correct belt positioning, it helps prevent belt slippage, reduces wear on driven components like the alternator and water pump, and minimizes engine noise and vibration.

This part is also available under the numbers: 3635034, 4991240. It is manufactured from high-grade materials that resist corrosion, heat, and mechanical stress, offering long-lasting durability in harsh operating environments. Rigorously tested to meet strict performance standards, this bracket provides the radial strength and rigidity required to keep your engine running smoothly.

Engine Compatibility & Fitment

This idler pulley support is designed for use with the following Cummins diesel engines:

• Cummins 6CT 8.3
• Cummins QSC 8.3

Features & Benefits

• High Durability: Built from premium materials to withstand extreme engine temperatures and corrosive elements.
• Vibration Reduction: Helps absorb and reduce the effects of vibration and friction on the idler pulley.
• Perfect Alignment: Guarantees the rigidity needed for radial strength, ensuring the belt remains properly aligned.
• Extended Belt Life: Prevents premature wear and tear on the accessory drive belt by maintaining optimal tension.

Cross-Reference / Interchange Part Numbers

This part replaces / is interchangeable with the following part numbers:

• 4063737
• 3635034
• 4991240
• C4991240
• C3635034
• C4063737
• CU4991240
• CU3635034
• CU4063737
• CUM4991240
• CUM3635034
• CUM4063737