Description
Product Overview
The Cummins 4946239 valve cover gasket is an original OEM sealing component designed to create a secure seal between the valve cover and the cylinder head in Cummins diesel engines. This gasket is critical for preventing oil leaks and maintaining proper engine lubrication under high-temperature and high-pressure conditions.
Engineered with advanced materials, the gasket withstands thermal expansion, oil exposure, and vibration to deliver durable, leak-free performance.
Key Features
✅ OEM Precision: Genuine Cummins part ensures an exact fit and reliable sealing.
✅ High-Temperature Resistance: Made from heat-resistant materials to endure demanding engine conditions.
✅ Oil Leak Prevention: Effectively seals the valve cover to maintain proper engine lubrication.
✅ Enhanced Durability: Resists wear, pressure, and environmental factors.
✅ Direct Replacement: Easy installation with no modifications required.
Function and Purpose
The 4946239 valve cover gasket provides a critical seal between the valve cover and the engine cylinder head. This gasket:
Keeps oil contained within the engine, preventing leaks.
Maintains proper lubrication for moving parts in the cylinder head.
Protects against contaminants that can enter the valve train.
Supports optimal engine performance and longevity.
Technical Specifications
Part Number: 4946239
Type: Valve Cover Gasket
Material: High-grade elastomer or composite materials
Application: Cummins diesel engines
Temperature Range: Designed to endure extreme heat from combustion and oil flow
Installation Tips
Remove the old gasket and clean the valve cover and cylinder head mating surfaces.
Inspect for any signs of damage or warping.
Position the new gasket carefully to ensure proper alignment.
Torque the valve cover bolts to Cummins’ recommended specifications.
Check for leaks after starting the engine.
⚠️ Note: Do not reuse old gaskets, as they may no longer provide an effective seal.
When to Replace
Replace the valve cover gasket if:
There are visible oil leaks around the valve cover.
The gasket appears cracked, hardened, or worn.
During routine engine maintenance or valve cover removal.
Quality Assurance
Each Cummins 4946239 gasket meets strict OEM standards, including:
Heat and pressure resistance tests
Leak-proof performance verification
Material durability evaluations
Compatible Engine Models
The 4946239 valve cover gasket is used in various Cummins diesel engines, including:
ISF2.8 / ISF3.8
ISBE, QSB, and other 4- and 6-cylinder configurations
Many on-road and off-road applications
Always verify fitment using your engine’s serial number and service manual.
Why Choose the Cummins 4946239 Gasket?
Maintains a secure seal for optimal engine operation
Protects against oil leaks and contamination
Engineered for demanding diesel applications
Genuine OEM part for trusted reliability
Quick, easy installation for professional or DIY repair
Conclusion
The Cummins 4946239 valve cover gasket is an essential component for leak-free performance and long-lasting engine protection. With OEM precision, superior materials, and proven durability, this gasket ensures that your Cummins diesel engine remains clean, well-lubricated, and efficient.
For heavy-duty reliability, choose only genuine Cummins replacement parts like the 4946239 gasket.
