Accessory Drive Sprocket Cummins 3971520

High-Performance Accessory Drive Sprocket

The Accessory Drive Sprocket 3971520 is a critical component engineered by Cummins for heavy-duty commercial engines. This sprocket is responsible for the seamless transfer of rotational force from the engine’s crankshaft to vital auxiliary systems, including air compressors, water pumps, and alternators. Its precision-engineered tooth profile ensures optimal belt engagement, significantly reducing the risk of slippage and energy loss.

Key Features and Benefits

• Durable Construction: Manufactured from high-grade materials resistant to wear and corrosion, ensuring a long service life in demanding environments.
• Precision Engineering: Designed with a specific tooth pitch tailored for Cummins engines to provide smooth power transmission and minimize vibration.
• System Reliability: Facilitates the consistent operation of the air compressor, auxiliary pumps, and vacuum pumps, maintaining system pressure and lubrication.

Engine Compatibility

This sprocket is designed for a wide range of Cummins engine platforms, including:

• B Series: B4.5, B6.7 (CM2350, CM2670)
• F Series: F3.8, F4.5 (CM2350, CM2620)
• ISB/ISD Series: 4.5 and 6.7 liter variants
• ISF Series: 3.8 and 4.5 liter variants
• QSB Series: 4.5 and 6.7 (CM850, CM2250, CM2350)

Technical Specifications

• Weight: 2.23 lbs
• Dimensions: 5.0 x 5.0 x 0.98 inches