Cutting-edge features like added seals, sleeves and extended lands address the root cause of hydraulic problems, so you can fix — rather than mask — chronic problems.
Zip Valves are precision manufactured from the finest materials to guarantee reliable performance and keep the comebacks away.
Hardcoat anodized aluminum valves and highly wear-resistant, billet aluminum sleeves provide extra protection against future wear.
Putting a steel valve in an aluminum bore invites leakage at operating temperature because the metals expand at different rates. Zip Valves avoid this by only using steel when the OE design calls for it.
From regulating valves, end plugs and accumulator pistons to comprehensive valve body rebuild kits, more than 350 Zip Valve products are available for a huge range of transmissions.
Improve performance and durability, and get crisp, clean shifts without harshness.