Start with the vehicle
Gather the VIN, year, make, model, engine, drivetrain, and mileage. Include any transmission replacement history you know about.
ZF 8HP / OWNER & SHOP GUIDE
Identify your ZF 8HP
A useful inquiry starts with the vehicle and the full transmission identification.
Bring the full transmission code
If you have a transmission label or existing service paperwork, record the complete identification as shown. Include suffixes and assembly numbers rather than shortening everything to “8HP.”
Record the existing part number
For a component inquiry, include its existing part or assembly number and the transmission identification. A family name alone is a starting point rather than a fitment confirmation.
Not sure? Start with what you have
Choose “Other transmission inquiry” and describe the vehicle. Include the available identification and ask what additional information is needed.