Allison 1000 Oversized Gain Valve Kit Sonnax Part Number 37000-24K Fits 2000–2009 units only.
Warning: “A” and “B” trim pressure valve trains are visually similar but are not the same.
- Shift concerns associated with circuit pressure loss
Valve spools and bore wear due to continuous valve oscillation. Degraded valve/bore clearance allows critical hydraulic pressure to escape to exhaust or cross leak to adjacent circuits, and may cause the valve to stick.
Restore proper hydraulic control by refurbishing the bore and replacing worn parts with the oversized Sonnax valve kit.
Tool Needed: F-37000-TL24