Speed Indicator Ring Cummins 3942441

Precision Speed Monitoring for Heavy-Duty Engines

The 3942441 Speed Indicator Ring is a critical component for maintaining the operational integrity of Cummins engine systems. Designed to work in tandem with the vehicle’s speed sensor, this ring provides the essential data required for accurate speedometer readings and engine control unit (ECU) calculations.

Key Features and Integration

This component is engineered for versatility and durability, often integrated into several key engine areas:

• Crankshaft Interaction: When mounted on the engine crankshaft, it provides vital rotational speed data, allowing the ECU to optimize fuel injection and ignition timing.
• System Synchronization: Ensures the precise alignment of the camshaft and valve train for maximum engine efficiency.
• Durable Construction: Manufactured from high-quality materials to withstand the high-vibration environment of commercial truck operations.

Technical Specifications

• Part Number: 3942441
• Weight: 0.125 lb
• Dimensions: 8.5 x 8.05 x 2.3 in
• Compatibility: Commonly found in Cummins ISB series and various short block kits.

By providing reliable signals to the speed sensor, the 3942441 ring helps drivers maintain safe speeds and ensures the engine management system operates at peak performance.