TCI® Buick Grand National 2004R Constant Pressure Valve Body™

[CPG Marketing]

New TCI® valve body improves factory Buick Grand National characteristics while utilizing constant pressure technology for increased durability

All too often, factory Buick valve bodies cause slippage and variances in fluid pressure, eventually wearing out the transmission’s internal clutches and bands. An even bigger headache is the adjustment of the Buick TV cable – a critical cable that is often overlooked or improperly adjusted by most amateur (and many pro) installers. Drivetrain experts at TCI® have recently discovered a remedy for this problem with their revolutionary 2004R Constant Pressure Valve Body™ specifically for the Buick Grand National, which helps prevent unanticipated transmission wear and clutch damage by ensuring proper line pressure at a constant rate – regardless of TV cable positioning.


A direct bolt-in replacement of the stock Buick Grand National valve body, the TCI® Buick Grand National 2004R Constant Pressure Valve Body™ features improved line pressure and adjustable shift points that can be tailored to individual preferences. While this new high performance replacement valve body improves the factory Buick Grand National characteristics and feel, it utilizes the TCI® innovative Constant Pressure Technology™ for performance and longevity. This new development in drivetrain technology is also proven to increase overall transmission, band and clutch life. No special tools are required for the installation of this valve body, and factory drivability is retained, leaving you with a firmer shifting, more durable transmission.

This new Buick-specific performance valve body helps prevent long-term transmission damage in both stock and aftermarket units by monitoring fluid line pressure, knocking out slippage and increasing shift firmness. For more information about the TCI® Buick Grand National 2004R Constant Pressure Valve Body™ or any other TCI® product, call us toll free at 1-888-776-9824, or visit us online at www.tciauto.com.

Quick Summary
Product: TCI® Buick Grand National 2004R Constant Pressure Valve Body™
Part Number: #386021

Features & Benefits:
• Buick Grand National-specific constant pressure valve body prohibits transmission wear & clutch damage by ensuring proper line pressure – regardless of TV cable positioning
• Customizable shift points
• Increases transmission, clutch & band life
• Improves drivetrain performance & durability
• Direct bolt-in Grand National replacement; no special tools needed