Peterbilt 389
PeterbiltClass 8

Peterbilt 389

The chrome king. The owner-operator icon.

The Model 389 was Peterbilt's flagship long-hood conventional and a premium throwback prized by owner-operators, famous for the longest, lowest hood the brand ever built. Peterbilt produced the final 389 in 2024, ending the 359/379/389 family's roughly 57-year run and retiring the 300-series lineage; the new Model 589 took over its mantle.

Maker
PACCAR
Years
2007–2023
Body
Sleeper
Rating
Up to 80,000 lb GCWR
Power
Up to 605 hp
Applications
Owner-operator, Show truck
Engines
PACCAR MX-13Cummins X15Cummins ISX

Trouble with your 389?

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Common replacement parts

Real products from the PartsNow catalog. Confirm fitment with Mike before ordering.

3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER

3030HNTRX

3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER

OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5

OTR10143

OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5

5-808330 - BRAKE KIT FOR 4709DEN SHOES

5-808330

5-808330 - BRAKE KIT FOR 4709DEN SHOES

370036A - OIL BATH SEAL

370036A

370036A - OIL BATH SEAL

348-4195 - HUB CAP (SENTINAL LARGE DIAM)

348-4195

348-4195 - HUB CAP (SENTINAL LARGE DIAM)

5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD

5008414PGBXW

5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD

11444 - GLADHAND BRACKET MOUNT

11444

11444 - GLADHAND BRACKET MOUNT

15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG

15W40 OIL

15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG

Brakes & Wheel EndAir SystemFiltrationElectrical & LightingSuspension & SteeringCooling SystemDrivetrainBody & CabExhaust
Find parts at PartsNow.aiCall or text (865) 290-5485

Compare the 389

W900 vs 389389 vs 579389 vs LoneStar

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Electrical & Lighting

Trailer ABS Light Won't Go Off? Sensor & Wiring Guide

Trailer ABS light staying on? Step-by-step diagnosis for wheel speed sensors, harness corrosion, and ECU faults before you swap parts.
Aftertreatment & Emissions

DEF Lines Freezing? Winter Prevention & Fixes for Fleets

Stop DEF freezing from parking your trucks. Learn heated-line checks, tank insulation, and SCR fault codes before derates hit.

More Peterbilt models

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579

The aerodynamic flagship of the fleet world.

589

The modern heir to the legendary 389.

379

The legend that started the long-hood cult.

567

Built to take a beating on the job site.

520

Low-entry cabover purpose-built for trash routes.

537 / 536

Peterbilt style, medium-duty practicality.

365 / 367

Set-forward / set-back vocational siblings.

220 EV

Cabover electric for quiet city routes.

359

The original long-hood legend that built the Peterbilt mystique.

377

The aero-sloped conventional that bridged classic and modern Peterbilt.

378

The set-back-axle workhorse for heavy vocational duty.

362

Peterbilt's last great cabover, aerodynamic and unmistakable.

387

Peterbilt's full-aero long-haul cruiser of the 2000s.

386

The aero hood on the traditional Peterbilt cab.

384

The short-BBC aero conventional for tight, weight-sensitive runs.

587

The wide-cab aero flagship that paved the way for the 579.

320

The low-cab-forward refuse king that ruled the route for three decades.

548

Class 8 muscle in a medium-duty cab for the toughest upfits.

535

The right-sized non-CDL Class 5/6 workhorse for the daily grind.

325

Peterbilt's nimble non-CDL Class 5 city-work truck.

330

Peterbilt's first medium-duty conventional, built to adapt to anything.

335

The medium-duty conventional that borrowed big-rig style.

337

The dependable Class 6/7 workhorse configured your way.

348

The Class 7-to-8 medium-duty bruiser for heavy upfits.

220

The compact low-cab-forward built for tight city streets.

579EV

Zero-emission Class 8 hauling with the 579's proven aero shape.

536EV / 537EV / 548EV

Peterbilt's next-generation zero-emission medium-duty service fleet.