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Exhaust Valve Seat Cummins 3928174 | 3970278, 3904716, 3929005, 1307586H1

Manufacturer: Cummins
Part#: 3928174-EN
Cross References:
Price on request
Available to order

Ensure optimal engine compression and cylinder head durability with this premium exhaust valve seat for Cummins 6CT 8.3L engines. Engineered to precise dimensions of 47.2 x 40.0 x 6.0 mm for a perfect press-fit and superior heat resistance.

Description

High-Performance Exhaust Valve Seat for Cummins 6CT 8.3L Engines

Restore your engine’s compression and protect your cylinder head from premature wear with this high-quality exhaust valve seat (valve insert). Specifically designed for Cummins 6CT 8.3-liter diesel engines, this component is manufactured to meet rigorous dimensional and thermal standards, ensuring a reliable seal and efficient heat dissipation from the exhaust valve to the cylinder head.

Key Features & Specifications

  • Precise Dimensions: Outer Diameter: 47.2 mm | Inner Diameter: 40.0 mm | Height/Thickness: 6.0 mm.
  • Engine Compatibility: Engineered specifically for Cummins 6CT 8.3L series engines.
  • Superior Thermal Resistance: Built from advanced alloys to withstand extreme exhaust gas temperatures and prevent valve recession.
  • Perfect Fitment: Designed for a precise press-fit installation into the cylinder head, restoring factory-spec clearances.

Why Replace Your Exhaust Valve Seats?

Over time, the constant impact and high temperatures of combustion cause exhaust valve seats to wear down, leading to valve recession, loss of compression, and reduced engine efficiency. Replacing worn seats during a cylinder head rebuild is essential to maintaining optimal engine performance, fuel economy, and preventing costly valve or head failures.