Crankcase Breather Gasket Cummins 3999820

Reliable Sealing for Engine Ventilation

The Cummins 3999820 Crankcase Breather Gasket is a critical component for maintaining the health and efficiency of commercial truck engines. This gasket is specifically engineered to facilitate the regulated release of gases and moisture from the crankcase while preventing the ingress of harmful contaminants. By maintaining optimal pressure levels, it protects internal components from premature wear and reduces the risk of leaks.

Key Features and Benefits

• Extreme Temperature Resistance: Manufactured from premium-quality materials designed to withstand the high-heat environment of heavy-duty diesel engines.
• Precision Fitment: Engineered for a snug fit to efficiently seal minor surface irregularities and prevent air or oil leaks.
• Enhanced Durability: Provides the necessary rigidity for radial strength, ensuring long-term reliability in demanding commercial applications.
• Optimized Performance: Supports the engine’s ventilation system, contributing to better fuel efficiency and reduced maintenance costs.

Engine Compatibility

This breather gasket is designed for a wide range of Cummins power units, including:

• B6.7 Series: B6.7 CM2350 B135B, ISB6.7 CM2250, ISB6.7 CM2350 B101, QSB6.7 CM2250, QSB6.7 CM2350 B105, QSB6.7 M CM2250
• ISB Series: ISB (Chrysler), ISB CM2150

Technical Specifications

• Weight: 0.045 lb
• Dimensions: 6.75 x 0.25 x 0.25 in
• Application: Positioned between the plate cover and upper engine components for a secure seal.