Billet Aluminum Instant Reaction Lock-Up Trans Brake Kit

COA-22027-AL-LU BILLET ALUMINUM INSTANT REACTION LOCK-UP TRANS BRAKE KIT W/ CLEAN NEUTRAL AND LOW BAND APPLY (PR/N123N)

The Coan Racing COA‑22027‑AL‑LU Billet Aluminum Instant Reaction Lock‑Up Trans Brake Kit is an elite-grade hydraulic transmission upgrade engineered for the Turbo‑Hydramatic 400, designed to meet the demands of high-performance drag racing with precision and durability. Made from billet aluminum, this valve body assembly integrates instant-trans-brake control in first gear, a low-band apply for soft yet powerful launches, and a clean-neutral safety position for secure shutdown and resetting between runs. Its distinguishing feature is the lock-up functionality, which enables direct control of the torque converter’s lock-up clutch, providing enhanced driveline efficiency and improved throttle response under load. The kit operates on the reverse PR/N123N shift pattern, ensuring compatibility with performance shifters and aggressive driving setups.

Built to be a comprehensive solution, the COA‑22027‑AL‑LU drops into the original TH400 bolt pattern without case modifications and includes race-spec springs, solenoid, manual selector, accumulator, and brake valves. Its billet construction not only enhances strength and thermal stability but also minimizes weight for quicker hydraulic reactions. As a lock-up capable, instant-reaction system with clean-neutral and low-band benefits, the COA‑22027‑AL‑LU delivers the precision, consistency, and drivability that serious bracket or heads-up racers require.

Replacement Parts For COA-22027-AL-LU:

• Separator Plate - CCP-0220590M
• Pro Tree Solenoid Block - CCP-0220655
• Standard Trans Brake Valve - CCP-0220725
• Manual Valve - CCP-0220730D
• Trans Brake Solenoid - COA-22040
• Trans Brake Spring Kit - COA-22042
• Reverse Servo Spring - COA-22043
• Spring - COA-2046
• Modulator, Solenoid, Case Connector O-Ring - COA-22163
• Clip - M04-SE31STPA
• Connector, Single Prong - T01-5A-101B