6T31 6T35 6T40 6T41 6T46 6T51 Lube On Demand Valve Kit | Sonnax | GEN-3

Product Description

6T31 6T35 6T40 6T41 6T46 6T51 Lube On Demand Valve Kit

Drill bit and plugs included. Installation requires drilling and plugging one separator plate orifice.

In 2014, GM moved to Generation 3 on the 6T40 family, featuring a vastly different pump than previous generations. The pump moved to an off-axis, binary vane style design that reduces pump flow demands and torque requirements, aiding in better fuel economy. A lube on demand regulating valve has been added to the pump, allowing cooler/lube flow to double when converter feed is above 87psi. This highly active valve is a huge source of pump wear, opening a path for converter feed pressure to exhaust, resulting in converter apply issues, reduced line pressure and overheating.

Sonnax has developed a unique, patent-pending, drop-in solution that maintains the integrity of the OE design of double-flow at increased pressure, while mitigating any existing bore wear and preventing future pump casting degradation. Sonnax drop-in lube on demand valve kit 144510-19K reroutes fluid to a sleeved limit valve for proper cooler/lube flow and includes an O-ring to seal the path that previously allowed valuable converter feed pressure to exhaust.

• Hardcoat anodized aluminum valve combats premature wear
• Highly wear-resistant, billet sleeve seals bore from wear-related fluid loss and provides a new, unworn bore for the valve to operate within
• O-Ringed sleeve stops leaks without requiring reaming
• Drill and plug included to allow for quick rerouting of balance oil
• Drop-in Zip Valve™ parts install quickly and easily

Contents

• Valve
• Sleeve
• O-Rings (2) 1 Extra
• Spring
• Drill Bit .062", For Separator Plate, Not Shown
• Plugs (2) 1 Extra, For Separator Plate, Not Shown
• Rivets (2) 1 Extra, For Separator Plate, Not Shown

Installation instructions (PDF)