The Aeroflow Locking Transmission Dipstick in black finish is designed for GM TH400 automatic transmissions and provides a reliable solution for maintaining correct ATF levels under demanding conditions. Many factory dipsticks can be pushed out by internal transmission pressure, which may lead to fluid loss and potential damage. This solid tube design helps prevent that issue with a secure locking mechanism at the top, keeping the dipstick firmly in place when it matters most.

Built for easy access and accurate fluid checks, the hard tube construction also makes topping up transmission fluid simple and efficient. The black finish gives the unit a clean, discreet look while offering dependable performance for street and performance applications. Each kit includes the locking dipstick, dipstick tube, and rubber tube seal for a complete installation.

Features & Benefits

• Designed to suit GM TH400 automatic transmissions
• Locking top helps prevent dipstick expulsion under pressure
• Solid hard tube construction for durability and stability
• Makes checking and filling ATF quick and easy
• Black finish offers a neat, low profile appearance
• Includes dipstick, tube, and rubber tube seal for installation