Kenworth K100

KenworthClass 8

Kenworth K100

The cabover legend that defined the flat-nose era of American trucking.

Kenworth's flagship cabover for over 40 years, the K100 faded after 1976 length-law changes erased the COE advantage and was quietly retired from North America after 2002 (production continued in Australia).

Maker

PACCAR

Years

1961–2002

Body

Cabover

Rating

Up to 80,000 lb GCWR

Power

Up to 475 hp

Applications

Long-haul, Regional

Engines

Caterpillar 3406Cummins NTCDetroit 8V92

Trouble with your K100?

Describe the symptom and Mike — the free AI truck consultant — will help you figure out what's wrong, which part is involved, and whether it's safe to drive. Free, no account.

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 End Air System Filtration Electrical & Lighting Suspension & Steering Cooling System Drivetrain Body & Cab Exhaust

Find parts at PartsNow.ai Call or text (865) 290-5485

Guides from the shop

Air Dryer Not Purging? Diagnose Wet Tanks Fast

Air dryer not purging? Diagnose wet tanks fast with checks for governor, purge valve, heater, and cartridge on trucks like Kenworth T800.

Suspension & Steering

Kingpin & Bushing Wear: Steer Axle Play Diagnosis Guide

Learn the dial indicator method to check kingpin and bushing wear on your steer axle before DOT pulls you out of service.

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.

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