Sonnax 96201-29K Line Pressure Boost Valve Kit

The Sonnax 96201-29K is a precision-engineered transmission valve body kit designed to address common hydraulic control issues found in automatic transmissions. Sonnax is a trusted leader in transmission component manufacturing, producing parts that meet or exceed OEM specifications for professional rebuilders and transmission shops.

This kit is engineered to restore proper line pressure boost function, correcting issues caused by wear in the valve bore that can lead to soft or inconsistent shift feel, pressure leakage, and premature transmission failure. The fit-finish tolerances on Sonnax components are held to tighter specifications than OEM, helping ensure long-term reliability after installation.

Key Features:

• Precision-machined valve and bore plug for a tight, leak-free fit
• Restores proper hydraulic line pressure boost function
• Addresses wear-related slippage and inconsistent shift quality
• Manufactured from high-quality hardened materials for extended service life
• Designed for professional transmission rebuilders
• Direct drop-in replacement — no special machining required

Sonnax transmission components are backed by decades of engineering expertise and are the go-to choice for transmission specialists seeking dependable, repeatable repair solutions.