Quick answer
PartStop stocks premium-quality aftermarket direct-replacement parts for Peterbilt semi trucks — including 579, 567, 389, 386, 379 and 587 — shipped nationwide from Tacoma, WA the same business day, with a 6+ month warranty. Verify fitment free by VIN at partstop.net/vin or by the OEM / cross-reference number on your old part.
Aftermarket direct-replacement parts for Peterbilt trucks (579 and more) — what we stock, how the model families differ, and how to verify fitment by VIN or cross-reference before you buy.
Peterbilt models we stock parts for
PartStop carries premium-quality aftermarket direct replacements for Peterbilt trucks including 579, 589, 567, 389, 386, 379, 367, 348, 337 — running PACCAR MX-13 and Cummins X15 power. Every part ships from Tacoma, WA the same business day when ordered before the daily cutoff, with free standard shipping on orders over $100 and a 6+ month warranty.
Know your model family before ordering
Peterbilt mirrors Kenworth's split (both are PACCAR): the aero 579/567 working the fleets, and the square-hood 389 (successor to the legendary 379) carrying the owner-operator flag. The 389/379 chrome and stainless culture means body, lighting and trim parts move constantly.
PACCAR parts often cross between Peterbilt and Kenworth under the same numbers — a cross-reference search by the number on your old part frequently finds the same component listed for both brands at a better price.
Three ways to guarantee the right fit
- VIN search: paste your Peterbilt VIN into the catalog search — you get the decoded truck plus only the parts verified to fit that build.
- Cross-reference number: search the number stamped on your old part; our listings match by verified cross-references, not photos.
- Call us: (253) 600-1351 with the VIN and part number — we confirm fitment before you pay. Wrong-part returns waste a week; a 2-minute check doesn't.
Popular Peterbilt categories
Browse everything that fits Peterbilt in one click, or jump to the categories Peterbilt owners order most.
Frequently asked questions
Are these genuine Peterbilt parts?
No — PartStop sells premium-quality aftermarket direct replacements, not original-equipment products. Peterbilt part numbers on our listings are used for cross-reference and identification only. Aftermarket direct replacements install on the factory mounting points and typically cost significantly less than the dealer counter.
Which Peterbilt models do you cover?
579, 567, 389, 386, 379 and 587 — plus universal-fit parts (filters, lighting, air-brake components) that run on any Class 8 truck. Coverage grows monthly; if you don't see your model, call with the VIN.
How do I make sure a part fits my truck?
Use the free VIN lookup at partstop.net/vin (parts verified against your truck's build data), match the OEM / cross-reference number from your old part, or call (253) 600-1351 — fitment is checked before you buy.
How fast does PartStop ship?
In-stock orders placed before the daily cutoff ship the same business day (Monday–Saturday) from Tacoma, WA. Standard delivery typically takes ~3 business days, free on orders over $100; overnight is available on most items ($50 small / $150 medium / $300 large parcel).
Shop related parts
Premium-quality aftermarket direct replacements — nationwide same-day shipping, 6+ month warranty.
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.