BILLET ALUMINUM INSTANT REACTION TRANS BRAKE KIT, BRAKE IN 1ST OR 2ND (1+2), REVERSED PATTERN (PRN123)

The Coan Racing COA‑22023A‑AL Billet Aluminum Instant Reaction Trans Brake Kit is a top-tier hydraulic control system engineered for Turbo‑Hydramatic 400 transmissions in serious drag racing environments. Crafted from billet aluminum and matching the reversed PRN123 shift pattern, this kit stands out by offering trans brake engagement in both first and second gears, giving racers enhanced staging flexibility and quicker reaction off the line. At its core is a precision-configured Pro Tree-style valve assembly with race-grade solenoid, manual selector valve, brake valve, high-pressure springs, and upgraded accumulator, all designed to hold firm line pressure under extreme launch demands and ensure rapid release when triggered.

Installation is straightforward and clean, fitting into the OEM valve body bolt pattern without case modifications. It includes an integrated wiring harness and essential hydraulic modifications (like orifice drilling and check-ball changes) for optimized brake performance. By combining dual-gear trans brake capability with billet construction and top-level hydraulic components, the COA‑22023A‑AL delivers enhanced launch control, reliability, and durability tailored for professional dragsters and serious bracket race setups.

Replacement Parts For COA-22023A-AL:

• Separator Plate - CCP-0220590K
• Pro Tree Solenoid Block - CCP-0220655
• 3 Speed Manual Valve - CCP-0220730H
• Trans Brake Spring Kit - COA-22042
• Reverse Servo Spring - COA-22043
• Modulator Plug - COA-22045A
• Spring - COA-22046
• Modulator, Solenoid, Case Connector O-Ring - COA-22163
• Connector, Single Prong - T01-SA-101B