Exhaust Valve Guide Cummins 3904409 | 41-88, J904409, 192040, SPO1408

High-Performance Exhaust Valve Guide for Cummins B-Series Engines

The Cummins 3904409 Exhaust Valve Guide is a critical component designed to maintain precise alignment of the exhaust valve stem within the cylinder head. By providing a stable, low-friction channel, this valve guide prevents lateral movement, reduces wear on the valve stem, and ensures a tight seal to prevent oil from entering the combustion chamber. Engineered to withstand the extreme heat and pressure of heavy-duty diesel operations, it is an essential replacement part during any cylinder head rebuild.

Key Features & Benefits

• Precise Valve Alignment: Minimizes valve stem play, ensuring optimal seating and combustion efficiency.
• Superior Thermal Resistance: Manufactured from high-grade materials to endure the intense temperatures of exhaust gas flow.
• Reduced Oil Consumption: Helps maintain a proper seal, preventing oil leakage down the valve stem.
• Extended Service Life: Built to meet or exceed heavy-duty industrial standards for long-lasting durability.

Product Specifications

• Part Number: 3904409
• Dimensions: 51.75 mm (Length) x 8.00 mm (Inner Diameter) x 14.00 mm (Outer Diameter)
• Application: Exhaust Valve Guide

Engine & Equipment Compatibility

This valve guide is compatible with a wide range of Cummins, Komatsu, and Case applications, including:

• Cummins Engines: B Series, 4B, 4BT, 4B4.5, 4BT3.9, 6B, 6BT, 6BT5.9
• Komatsu Engines: S4D102, S6D102
• Case Equipment: 1896, 2096, 5120, 5130, 5140, 5150, 5230, 5240, 5250, MX100, MX110, MX120, MX135, MX150, MX170, 580