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Peterbilt 589 Parts Guide: What Carries Over from the 389 (and What to Buy)
Last verified: July 2026 · Written by the Evertrust Parts fitment team
When Peterbilt ended 389 production and launched the 589 in 2024, a lot of owner-operators assumed a whole new parts catalog. The reality is better: the 589 deliberately keeps the classic long-hood layout, and much of the front lighting hardware interchanges with the 388/389/367/567 family. If you know the P54 part-number family, you already know most of the 589.
Quick answer: what interchanges
| Part | OEM reference | Fits |
|---|---|---|
| LED headlight, chrome housing | P54-6166-11R | 388 / 389 / 367 / 567 / 589 |
| LED headlight, black housing | P54-6166-110R | 388 / 389 / 367 / 567 / 589 |
| Headlight with turn signal | P54-6087R | 388 / 389 / 367 / 567 / 589 |
| Complete headlamp housing | P54-6037-1 | 367 / 389 / 388 / 567 / 589 |
Why the 589 kept the 389's lighting architecture
The 589 is the continuation of Peterbilt's classic styled truck — long hood, external air cleaners, and the traditional dual round-lens headlamp look that fleets and owner-operators buy the truck for. Rather than redesign the lamp package, Peterbilt carried the proven P54-family lighting forward. For you, that means the aftermarket parts that served the 389 for years fit your new 589 on day one — at aftermarket prices instead of dealer prices.
The parts we stock for the 589
- LED Chrome Headlight (P54-6166-11R) — the brightest-look upgrade, DOT & SAE approved.
- LED Black Housing Headlight (P54-6166-110R) — the blackout look, same fitment.
- Headlight with Turn Signal (P54-6087R) — the OEM-style halogen setup.
- Complete Headlamp Housing (P54-6037-1) — the full bucket, for collision repair or restoration.
- Grille & Headlight Bundle — front-end refresh in one order.
What does NOT automatically carry over
Be careful with hood-specific and cab-specific hardware: the 589 revised the hood structure, dash, and interior. Before ordering hood hinges, hood-mounted mirrors, or interior parts from a 389 listing, confirm fitment for the 589 specifically — or ask us with your VIN and we'll verify against the parts catalog before you spend a dollar.
FAQ
Do Peterbilt 389 headlights fit the 589?
The P54-family lamps we carry (P54-6166-11R, P54-6166-110R, P54-6087R, P54-6037-1 housing) list 589 fitment alongside 388/389/367/567. Order the same part you would for a 389.
When did the 589 replace the 389?
Peterbilt announced the 589 as the 389's successor with production starting in 2024.
Are aftermarket 589 headlights legal?
Every headlight we sell is DOT & SAE approved for on-road use in the US and Canada.