4 Pcs Aluminum TH400 Transmissions Governor Plate Turbo 400 350 551906

Aluminum Governor Plates for TH400 and TH350 Transmissions

These aluminum governor cover plates secure the governor on TH400 and TH350 transmissions, replacing OEM part number 551906 to prevent fluid leaks and maintain consistent shift behavior.

Overview

These aluminum governor plates are designed for TH400 and TH350 transmissions to secure the governor assembly and seal the casing. These premium plates ensure a tight seal to prevent fluid leakage and pressure loss during operation. High-performance builders and transmission rebuilders rely on these aluminum governor plates for consistent transmission performance.

Built For Performance

• Machined from high-grade aluminum for increased durability and heat resistance
• Precision cut to match the factory mounting holes on the transmission case
• Provides a reliable seal to eliminate fluid leakage around the governor area
• Corrosion-resistant raw finish prevents degradation over long-term use

Fits These Machines

• for TH400 Transmissions
• for TH350 Transmissions

On-The-Job Use

• Sealing the transmission governor compartment during rebuilds
• Replacing warped or leaking stamped steel factory governor covers
• Maintaining hydraulic pressure integrity in high-performance street and drag vehicles

Specs At A Glance

Good To Know

Q: Do these plates require a gasket for installation? A: Yes, a gasket or high-quality RTV sealant should be used during installation to ensure a leak-free seal.

Q: What is the benefit of aluminum over the factory steel cover? A: Aluminum plates offer superior rigidity to prevent warping under thermal expansion, ensuring more consistent sealing pressure.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.