Silver Seal MS701 Micro Sleeve Overhead Cam Seal Surface Repair Sleeve

The Silver Seal MS701 is a Micro Sleeve overhead cam seal surface repair sleeve designed to restore worn oil seal surfaces on overhead camshaft engines. Rather than replacing an expensive camshaft, this precision sleeve installs over the worn seal journal to create a new, like-new sealing surface — eliminating oil leaks at the cam seal without the cost of a full cam replacement.

Oil seal groove wear is a common problem on overhead cam engines, particularly where the seal rides on the camshaft journal. The MS701 addresses this directly by providing a durable repair surface that meets or exceeds OEM specifications, allowing the engine to be rebuilt with confidence.

Key Features:

• Designed for 1.376" shaft diameter overhead camshafts
• Covers a broad range of Chrysler 1.8L, 2.0L, 2.2L, 2.4L, 2.5L, and 3.0L OHC engines (1981–1995)
• Also fits Ford/Mazda 1.6L, 1.9L, 2.0L, and 2.3L Pinto-family OHC engines (1986–1999)
• Fits Mazda 1.5L (Z5), 1.6L (B6, ZM), 1.8L (BP), and 2.0L (FE) overhead cam engines
• Installs using the companion MST701 installation tool (sold separately)
• Reclaims worn overhead camshafts without grinding or machining the shaft
• Provides a new seal surface that resists wear for long-term reliability

The Silver Seal Micro Sleeve system is trusted by professional engine builders and machine shops for delivering a complete, reliable solution to oil seal surface leaks. The MS701 is part of Silver Seal's comprehensive 700-series overhead cam repair sleeve lineup.