GM Turbo 350 Transmission Locking Dipstick Black Finish Solid Tube

Keep ATF where it belongs with the GM TH350 Locking Dipstick. Featuring a black finish and a solid-tube design, this dipstick is built to withstand the pressures of automatic transmissions and prevent fluid loss through the tube. A smart solution for reliable level checks and clean, fast fills.

Locking protection for high-pressure transmissions

The top-locking mechanism locks the dipstick handle in place, preventing removal or expulsion when transmission pressure spikes. This minimizes leaks, reduces messes in the engine bay, and helps protect your transmission from unintended fluid loss during hard driving or heavy towing.

Solid tube for fast, accurate checks

The rigid, solid-tube design delivers dependable readings and makes ATF level checks quick and straightforward. With a sturdy tube that resists bending, you can confidently top off or verify fluid levels without guesswork.

Complete kit

Each unit includes a locking dipstick, a dipstick tube, and a rubber tube seal, giving you everything you need for a secure, leak-free installation.

Designed for GM TH350 transmissions

Specifically tailored for GM TH350 applications, this locking dipstick helps you maintain proper transmission fluid levels during maintenance, rebuilds, or routine service—keeping your TH350 performing reliably on the road.

• Locking top prevents dipstick expulsion under high transmission pressure
• Solid hard tube enables quick, accurate ATF checks and fills
• Black finish for a durable, low-profile appearance
• Includes locking dipstick, dipstick tube, and rubber tube seal
• Compatible with GM TH350 transmissions