Lower Engine Gasket Set Cummins 4089391 | 3801007, 4376512

High-Quality Lower Engine Gasket Set for Cummins K19 & KTA19

The Cummins 4089391 lower engine gasket set is designed to provide a complete and reliable sealing solution for your heavy-duty diesel engine rebuild. This comprehensive kit includes all the essential gaskets, seals, and O-rings required to seal the lower block, oil pan, and timing gear cover areas, preventing costly oil and coolant leaks. This part is also available under the numbers: 3801007, 4376512.

Engineered from premium materials, this lower gasket set is built to withstand extreme operating temperatures and high-pressure environments typical of heavy-duty industrial, marine, and commercial applications. It ensures a precise fit and long-term durability, helping you restore your engine’s performance and reliability.

Engine Compatibility and Fitment

This lower engine gasket set is compatible with the following Cummins engine models:

• Cummins K19 / KT19 / KTA19 (specifically for models with a one-piece timing gear cover)
• Cummins QSK19

Key Features and Benefits

• Complete Lower Block Sealing: Includes all necessary gaskets and seals for the lower portion of the engine, ensuring no component is left unsealed.
• Premium Material Construction: Manufactured to meet or exceed industry standards for heat resistance, chemical compatibility, and durability.
• Perfect Fitment: Designed to exact specifications for seamless installation and reliable, leak-free performance.

Cross-Reference / Interchange Part Numbers

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

• 4089391
• 3801007
• 4376512