This remanufactured valve body is a direct replacement for 2001-2003 Allison 1000/2000/2400 5-speed transmissions. It is completely disassembled, cleaned and updated with Sonnax components to correct shift complaints, circuit pressure loss, clutch distress and overheating. Every unit is calibrated so clutch, converter and line pressures match OE specifications.

Sonnax AL1004 Features:

• Remanufactured valve body for 2001-2003 Allison 1000/2000/2400 5-speed units
• Original equipment casting fully disassembled, cleaned and inspected
• Critical bores, valves and seals renewed as needed
• Includes Sonnax upgrades to optimize valve body function
• Hydraulic and electronic testing verifies proper pressure and shift performance

Sonnax AL1004 Notes:

• Identified as 5-speed with one tube on the bottom and six solenoids
• Reuse the existing manual valve from the core valve body

Please CLICK HERE for Sonnax Core Return Process