Every valve body is completely disassembled, cleaned, updated, solenoids tested and replaced as needed. Each remanufactured unit is then hydraulically and electronically tested so it’s ready to install!
Sonnax remanufactured valve bodies are backed by a Limited Lifetime Warranty.
The next time you have a 4L80/85-E in the shop, improve transmission performance and protect your warranty with Sonnax.
Featuring the Smart-Tech® overrun clutch valve kit pre-installed for unrivaled durability, these premium-quality remanufactured valve bodies will help keep your customers’ trucks working hard all year long.
A select number of Sonnax remanufactured valve bodies are available to distributors through the R&R (return & rebuild) service only.
Warranty only valve bodies are no longer in production. For service inquiries, please see details on Sonnax’s Limited Lifetime Warranty on remanufactured valve bodies.