Used Kenworth Engines
Engine-focused identification guidance and a form preselected for Kenworth engine requests.
View engine page →Used engines & transmissions
Used Kenworth Engines & Transmissions
Kenworth highway and vocational platforms use multiple powertrain combinations. A request should include the VIN, engine serial, and transmission model whenever available.
VIN & serial reviewHuman parts supportNationwide coordination
Used heavy-duty partsEngine and transmission requests
VIN & serial assistanceIdentification details reviewed
Nationwide freightShipping coordination available
Warranty optionsTerms shared before purchase
Choose your replacement part
Used Kenworth powertrain requests
Use the dedicated route for the component you need. Both pages retain the same VIN- and serial-led review process.
Used Kenworth Transmissions
Transmission tag guidance and a form preselected for Kenworth transmission requests.
View transmission page →Popular model families
Kenworth models represented in the request form
Model names organize the request; VIN and component identification are still required.
Identification guidance
The VIN identifies the truck build, while the engine and transmission tags identify the installed components. Photograph complete tags rather than individual stamped digits.
Possible engine relationships
Engine families seen in Kenworth applications
Possible transmission relationships
Transmission families seen in Kenworth applications
Sourcing process
Four steps for a clearer request
Share truck details
Send the part, year, make, model, VIN, and complete identification numbers.
Application review
A parts specialist compares the truck and component identifiers and requests anything missing.
Review the option
Review availability, condition information, price, warranty terms, and included components.
Plan the delivery
Confirm destination access, unloading equipment, freight details, and receiving instructions.
Kenworth questions
Compatibility starts with identification
What information is needed for a Kenworth parts request?
Provide the VIN, truck model, model year, engine serial or transmission model and serial, plus any data-plate photos you have.
Does the Kenworth model name guarantee fitment?
No. Kenworth trucks can use different powertrain, electronics, emissions, and vocational configurations within the same model family.
Can I request both a used engine and transmission?
Yes. Use the part selector in the form and submit a separate request for each component when both are needed.
Ready to start?
Tell us what your truck needs
Provide as much identification information as possible. A parts specialist can follow up if another number or specification is needed.
Prefer to speak with someone?1-800-518-9776