Pioneer Cables 768023 Automatic Transmission Dipstick Tube Seal

Automatic Transmission Dipstick Tube Seal for GM and Jaguar

Pioneer Cables 768023 is an automatic transmission dipstick tube seal for select rear-wheel-drive and truck applications. It is an exact-fit replacement from Pioneer Transmission Components for service work on the filler tube and dipstick area.

Key Features

• Automatic transmission dipstick tube seal for sealing the filler tube interface
• Exact-fit replacement part from Pioneer Transmission Components
• Compatible with select THM200, THM200-4R, THM250C/M31, THM350, THM350C, and THM400 applications where noted
• Fits a wide range of Chevrolet, GMC, Pontiac, Buick, Cadillac, Jaguar, Rolls-Royce, and Oldsmobile vehicles
• Part number 768023 for catalog lookup and verification

Detailed Description

This Pioneer Cables 768023 seal is used in automatic transmission filler tube and dipstick assemblies to help maintain a proper seal at the tube opening. It is listed for many classic GM platforms, including Chevrolet C10, K10, Monte Carlo, Caprice, Camaro, El Camino, Blazer, and GMC Jimmy, along with Jaguar XJ12 and XJS applications that specify the listed transmission types. Pioneer Transmission Components describes this line as exact-fit replacement parts, making this seal a direct service choice when restoring or repairing the transmission dipstick tube area.

This part cross-references common service listings for the same application, including 172286 and 182286.

What It Is Used For

• Replacing a leaking or hardened dipstick tube seal
• Restoring a proper seal at the transmission filler tube
• Addressing fluid seepage around the dipstick tube opening
• Servicing transmission maintenance points on Chevrolet C1500, GMC K2500, and Pontiac Firebird applications
• Supporting repair work on older GM and Jaguar automatic transmission setups

Installation Notes and Tips

Verify the transmission model before ordering. Several listings are limited to specific units such as THM200, THM200-4R, THM250C/M31, THM350, THM350C, or THM400. Confirm the vehicle year, make, model, and filler tube style against the fitment list for your application. Clean the tube and sealing surface before installation to help the new seal seat correctly.

Quality Assurance

Pioneer Transmission Components positions this part as an exact-fit replacement for service use. Part number 768023 is cataloged for direct application matching across the listed vehicles and transmission families.