ATP Parts TO-34 Speedometer Driven Gear Seal

Transmission Seal for Speedometer Drive

ATP Parts TO-34 is a transmission seal for the speedometer driven gear area, built as an exact-fit replacement for service work on older Chrysler, Dodge, Jeep, and Mitsubishi applications. With precise inside and outside diameters, it helps restore a secure seal at the governor cover, speedometer cable, or speedometer gear adapter.

Key Features

• Part number: TO-34
• Inside diameter: 1.5625 in.
• Outside diameter: 1.75 in.
• Direct replacement seal for speedometer driven gear applications
• ATP Transmission Seals and Gaskets are made as exact-fit replacement parts
• Cross-reference: Four Seasons 15108

Detailed Description

This ATP Parts TO-34 speedometer driven gear seal is used in transmission service where the driven gear pinion adapter, speedometer cable, or speedometer gear adapter needs a proper sealing surface. It is a practical replacement for vehicles such as the Jeep Wrangler, Dodge Dakota, and Dodge Ram 1500, along with many other Chrysler-era rear-wheel-drive and 4x4 platforms. The TO-34 part number is also referenced in related aftermarket catalogs for the same application.

Because this seal is sized to match the original dimensions, it supports a proper fit at the transmission housing interface and helps maintain a clean seal around the speedometer drive components. For technicians and DIY repairs on Jeep Cherokee, Dodge Ramcharger, and similar applications, TO-34 is a straightforward service part for transmission sealing work.

What It Is Used For

• Replacing a worn or hardened speedometer driven gear seal
• Stopping fluid seepage at the governor cover or speedometer adapter area
• Restoring a tight seal around the speedometer cable connection
• Addressing leaks after transmission service on older Dodge and Jeep vehicles
• Supporting accurate reassembly of the speedometer drive assembly

Installation Notes and Tips

Verify the transmission family and seal dimensions before installation. This part is listed for applications including 1982-1994 Dodge B150/B250/B350, 1987-2002 Jeep Wrangler, and 1987-2000 Dodge Dakota, with additional coverage across many Jeep, Dodge, Chrysler, Buick, Chevrolet, GMC, Pontiac, Oldsmobile, Cadillac, Mitsubishi, and Isuzu models. Confirm the governor cover, speedometer cable, or speedometer gear adapter location matches the vehicle listing before service. Clean the sealing surface thoroughly and inspect the mating components for wear before installing the new seal.

Quality Assurance

ATP Parts markets its transmission seals and gaskets as exact-fit replacement components, giving you a service part built around original-style dimensions and application coverage.