Differential Cover.

Rear Cover Gasket – Mopar (5086905AA)

The Mopar Rear Cover Gasket (5086905AA) is a Genuine OEM sealing component engineered to provide a leak-resistant seal between the rear differential cover and the axle housing on compatible Chrysler, Dodge, Jeep, and Ram vehicles. This gasket plays a critical role in containing gear lubricant within the differential assembly while protecting internal gears and bearings from contamination. Manufactured to strict Mopar factory specifications, it ensures precise fitment and dependable long-term sealing performance.

Constructed from high-quality oil-resistant composite gasket material or formed elastomer (application dependent), the rear cover gasket is designed to withstand continuous exposure to gear oil, temperature fluctuations, and internal housing pressure. The material resists compression set and chemical degradation, helping maintain uniform sealing integrity over extended service intervals. Precision-cut bolt holes and fluid channel openings align exactly with factory housing surfaces.

The 5086905AA rear cover gasket is developed as a vehicle-specific direct-fit component, matching original outer dimensions, bolt hole spacing, and sealing surface geometry. Maintaining OEM dimensional accuracy is essential to ensure proper compression and prevent lubricant seepage. Aftermarket gaskets that deviate from factory specifications may lead to uneven sealing or premature leaks.

For professional technicians, installing a Genuine Mopar rear cover gasket ensures compliance with manufacturer drivetrain sealing standards during differential service or gear replacement procedures. For experienced DIY vehicle owners, selecting the OEM gasket eliminates compatibility uncertainty and restores factory-engineered fluid containment without modification.

A properly installed rear cover gasket supports stable gear lubrication, protects internal drivetrain components, and prevents fluid loss. Replacing a worn or damaged gasket promptly helps maintain differential performance and long-term reliability.

• Genuine Mopar OEM rear cover gasket

• Oil-resistant composite or elastomer construction

• Precision-cut bolt hole and sealing geometry

• Designed for gear lubricant containment

• Engineered to withstand temperature and pressure variation

• Vehicle-specific direct-fit configuration

If you are restoring proper differential sealing or replacing a leaking component, the Mopar Rear Cover Gasket (5086905AA) delivers factory-accurate fitment, dependable leak prevention, and OEM-engineered drivetrain reliability for your vehicle.

Differential Cover.

Rear Cover Gasket – Mopar (5086905AA)

The Mopar Rear Cover Gasket (5086905AA) is a Genuine OEM sealing component engineered to provide a leak-resistant seal between the rear differential cover and the axle housing on compatible Chrysler, Dodge, Jeep, and Ram vehicles. This gasket plays a critical role in containing gear lubricant within the differential assembly while protecting internal gears and bearings from contamination. Manufactured to strict Mopar factory specifications, it ensures precise fitment and dependable long-term sealing performance.

Constructed from high-quality oil-resistant composite gasket material or formed elastomer (application dependent), the rear cover gasket is designed to withstand continuous exposure to gear oil, temperature fluctuations, and internal housing pressure. The material resists compression set and chemical degradation, helping maintain uniform sealing integrity over extended service intervals. Precision-cut bolt holes and fluid channel openings align exactly with factory housing surfaces.

The 5086905AA rear cover gasket is developed as a vehicle-specific direct-fit component, matching original outer dimensions, bolt hole spacing, and sealing surface geometry. Maintaining OEM dimensional accuracy is essential to ensure proper compression and prevent lubricant seepage. Aftermarket gaskets that deviate from factory specifications may lead to uneven sealing or premature leaks.

For professional technicians, installing a Genuine Mopar rear cover gasket ensures compliance with manufacturer drivetrain sealing standards during differential service or gear replacement procedures. For experienced DIY vehicle owners, selecting the OEM gasket eliminates compatibility uncertainty and restores factory-engineered fluid containment without modification.

A properly installed rear cover gasket supports stable gear lubrication, protects internal drivetrain components, and prevents fluid loss. Replacing a worn or damaged gasket promptly helps maintain differential performance and long-term reliability.

• Genuine Mopar OEM rear cover gasket

• Oil-resistant composite or elastomer construction

• Precision-cut bolt hole and sealing geometry

• Designed for gear lubricant containment

• Engineered to withstand temperature and pressure variation

• Vehicle-specific direct-fit configuration

If you are restoring proper differential sealing or replacing a leaking component, the Mopar Rear Cover Gasket (5086905AA) delivers factory-accurate fitment, dependable leak prevention, and OEM-engineered drivetrain reliability for your vehicle.