National 3655 Engine Intermediate Shaft Seal - Front

Engine Intermediate Shaft Seal for Chrysler and Dodge

National 3655 is an engine intermediate shaft seal built for metric applications that require a precise sealing fit. It uses a polyacrylate sealing material and a clockwise-spiral lip design to help maintain a consistent seal at the shaft interface.

Compatible With Chrysler, Dodge, Plymouth, Jeep, and Volkswagen applications across a broad range of model years, including Jeep Wrangler, Dodge Caravan, and Chrysler Town & Country coverage. This National 3655 oil seal is sized for a 35.000 mm shaft and a 52.350 mm outside diameter.

Key Features

• Engine intermediate shaft seal / oil seal for sealing-system service
• Polyacrylate sealing material for durable contact at the shaft surface
• Clockwise-spiral lip design for controlled sealing action
• Metric dimensions: 35.000 mm inside diameter, 52.350 mm outside diameter, 7.750 mm width
• National 3655 part number for direct catalog lookup
• Cross-reference: Timken 3655S for the same application

Detailed Description

National has supplied sealing products for more than 75 years, and this 3000-series seal reflects that focus on precision engine sealing. The 3655 is a Type 32 oil seal with a 2.047 in housing bore, 1.378 in shaft size, and 0.305 in thickness, making it a metric replacement for service work where exact dimensions matter. It is used in a wide range of Chrysler, Dodge, Plymouth, Jeep Wrangler, and Volkswagen Routan applications, along with many other vehicles listed in the fitment data.

For buyers searching for an engine intermediate shaft seal for 2007-2011 Jeep Wrangler, 1990-2010 Dodge Grand Caravan, or 1990-2010 Chrysler Town & Country, National 3655 provides the dimensional match needed for proper sealing performance.

Common Uses

• Replacing a worn or leaking intermediate shaft seal
• Addressing oil seepage around the shaft and housing bore
• Restoring sealing integrity during engine service
• Supporting repair work on Chrysler, Dodge, Plymouth, Jeep Wrangler, and Volkswagen Routan platforms

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation. Clean the bore and shaft thoroughly, inspect for scoring or wear, and install the seal squarely to avoid lip damage. Confirm the clockwise-spiral lip orientation matches the application before final assembly. Use the vehicle-specific service procedure for the exact engine location and fitment.

Quality Assurance

National is recognized for premium sealing solutions and long-term engineering support across automotive applications. The 3655 is backed by National’s sealing expertise and dimensional consistency for service replacement use.