Rear Main Seal Dodge 5.2L/5.9L Magnum 92-03

The Rear Main Seal Dodge 5.2L/5.9L Magnum 92-03 from COMETIC GASKETS is an essential wear component for anyone maintaining or rebuilding a classic Dodge truck or Mopar engine. This two-piece Viton seal sits at the critical junction where your crankshaft exits the engine block, preventing oil from leaking into the bell housing and transmission tunnel. Whether you're performing routine maintenance on a high-mileage 5.9L Magnum or executing a full engine overhaul, a factory-original rear main seal replacement is non-negotiable for keeping your oil where it belongs—inside the engine.

Constructed from premium Viton material, this seal offers superior heat and chemical resistance compared to standard elastomer compounds, extending service life even under the elevated crankcase temperatures common in modified or heavily driven engines. The two-piece design allows for straightforward installation without full engine removal, a practical advantage for field repairs and professional shops alike. Viton's inherent durability makes it the preferred choice for small-block Mopar applications, especially when combined with modern synthetic oils that demand better seal compatibility. At just 0.09 lbs and measuring 6.1 x 0.4 x 7.15 inches, this compact seal delivers outsized reliability at a critical sealing point.

Technicians and enthusiasts restoring or maintaining 1992–2003 Dodge trucks with 5.2L or 5.9L Magnum engines will recognize this seal as genuine Mopar engineering. The two-piece configuration is particularly valuable for transmission work, timing cover replacement, or any procedure that doesn't warrant a complete engine teardown. Installation requires basic mechanical competency and proper alignment tools to ensure the seal seats correctly against the crankshaft. This COMETIC GASKETS component (MPN C5564) is the OEM-equivalent solution for eliminating rear main oil seepage and protecting your drivetrain investment.