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Peterbilt 389 Parts — Engines, Transmissions & Drivetrain
The classic long-hood, popular with owner-operators; often Cummins.
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Sourcing parts for a Peterbilt 389? Tell me which part you need and I'll match it.
What part do you need?
Common Peterbilt engines
Frequently asked questions
What engines do Peterbilt trucks use?
Late-model 579s commonly run PACCAR MX-13; many 389s run Cummins. Share the VIN and we'll confirm.