Maxwell Seal Oil Twin Lip - 55 x 70 x 8mm

The Maxwell Seal Oil Twin Lip 55 x 70 x 8mm is a precision-engineered crankshaft or axle seal designed for serious engine builders, restoration enthusiasts, and mechanics who demand OEM-quality reliability in critical sealing applications. This dual-lip design addresses the real-world challenge of preventing oil leakage at rotating shaft interfaces—a problem that compounds when engine modifications increase pressure, temperature, or vibration. Whether you're rebuilding a vintage engine, upgrading to higher-performance internals, or restoring a neglected block, the Maxwell Seal Oil Twin Lip ensures your newly assembled engine stays leak-free and holds oil pressure consistently.

The twin-lip configuration is the engineering solution that separates reliable seals from quick failures in high-stress environments. The primary lip creates the main pressure seal against the shaft, while the secondary lip acts as a backup barrier and helps scrape away contaminants before they reach the primary seal surface. This redundancy is especially valuable in modified engines where elevated RPM, higher oil temperatures, or increased volumetric displacement push standard seals to their limits. Maxwell's precision manufacturing ensures the 55 x 70 x 8mm dimensions match OEM specifications exactly, allowing drop-in installation without modification or shimming—critical when you're assembling a tight-tolerance short block or transmission housing.

Mechanics and engine builders installing this seal will appreciate its compatibility with most crankshaft or output-shaft applications in the 55mm bore range, common across small-block and mid-sized displacement engines. Installation is straightforward with any proper seal driver tool—no special skills required, though careful bore cleaning and shaft inspection beforehand prevent premature wear. The lightweight 0.2 lb design reflects its compact, focused purpose, and its 3 x 1 x 3 inch footprint makes storage and handling convenient during rebuild operations. After installation, the Maxwell Seal Oil Twin Lip typically requires minimal break-in and will maintain a consistent seal pressure from cold starts through sustained high-RPM operation, giving you the confidence to push your modified engine to its potential without oil weeping or catastrophic leakage.