Decision dossierEvidence reviewed
on-highway tractor · Kenworth T600

Kenworth T600: Used-Buy Risk, Price & Recalls

Used Kenworth T600 prices ($31,950–$50,000), high-mileage C15 and Eaton Fuller risks, NHTSA recalls, and the pre-2010 California registration trap.

Status: published
Used range$31,950–$50,000
RecallON RECORD
Known risks4
Sources6
Verified2026-09-11
Safety notice

Recall on record for this model family

  • NHTSA 11V203000 / 07V279000 / 05V570000 / 08V487000 (ENGINE / ENGINE:DIESEL) confirmedofficial notice
  • NHTSA 09V239000 / 07V073000 (SERVICE BRAKES, AIR) confirmedofficial notice
  • NHTSA 05V543000 / 06V447000 (STEERING / STEERING:COLUMN) confirmedofficial notice
  • NHTSA 07V132000 / 10V634000 (POWER TRAIN:AXLE ASSEMBLY) confirmedofficial notice

Verify the unit's serial number against the official notice before purchase.

Short answer: $31,950–$50,000 observed (3 real listings; discontinued 2007, so scarce and high-mileage — the priced units show 760k–1.39M miles). The whole used population is pre-2010, so it likely cannot be legally registered in California without a $15k–$25k DPF retrofit. Inspect the high-mile powertrain hard. Used examples run roughly $31,950 to $50,000. Basis: Kenworth T600 used listings.

Last verified against the primary source on Sep 11, 2026.

Decision status
inspect

$31,950–$50,000 observed (3 real listings; discontinued 2007, so scarce and high-mileage — the priced units show 760k–1.39M miles). The whole used population is pre-2010, so it likely cannot be legally registered in California without a $15k–$25k DPF retrofit. Inspect the high-mile powertrain hard.

Confidence 50%
Market context
$40,000

3 observed comparables

As of Sep 11, 2026
Next-150k-Mile Exposure

What can make the cheap machine expensive?

ComponentSeverityDocumented repair cost
Caterpillar C15 water pumpmedium$800–$1,200
Meritor rear axle bearingmediumnot yet verified
Caterpillar C15 turbocharger bearinghigh

Turbo bearing damage costs $3,000–$5,000 to repair. Check for boost lag, oil in the charge pipe, and shaft play.

$3,000–$5,000
Caterpillar C15 water pumpmedium

A water pump replacement runs $800–$1,200 in parts and labor. Check for weeping at the pump and coolant history.

$800–$1,200
Eaton Fuller transmission (high-mile)high

Hard shifting into gear affects nearly every Fuller transmission over 300,000 miles — and both priced T600s with mileage show 760k–1.39M mi. Road-test the shift quality carefully.

Cost not yet verified
Meritor rear axle bearingmedium

Whining or growling that worsens under load signals rear-axle bearing wear. Listen under load.

Cost not yet verified

Common questions

How much does a used Kenworth T600 cost?

Observed listings range roughly $31,950 to $50,000 depending on age, condition, and configuration (as of 2026-09-11).

What fails on the Kenworth T600?

The most cited concerns in our evidence record: Caterpillar C15 turbocharger bearing, Caterpillar C15 water pump, Eaton Fuller transmission (high-mile). See the risk breakdown above for details and sources.

Is the Kenworth T600 under recall?

A safety recall exists for this model family — verify the unit's serial number against the official notice linked on this page before buying.

From the research record

  • PRICE (SECONDARY, soarr.com, as-of 2026-09-11; 3 real prices): 2007 $31,950 (761,039 mi); 2005 $40,000 (mileage not listed); 2007 $50,000 (1,386,652 mi). Small sample — discontinued 2007, genuine scarcity. https://www.soarr.com/for-sale/trucks/0/Kenworth/T600/all-for-sale
  • RECALL (PRIMARY, NHTSA): MY2007 query Count=14, MY2005 Count=8. Campaign #s + components verified verbatim from the API (ENGINE, SERVICE BRAKES AIR, STEERING, SUSPENSION, AXLE ASSEMBLY, FIFTH WHEEL). Re-query the endpoint for verbatim Summary/Remedy text. https://api.nhtsa.gov/recalls/recallsByVehicle?make=kenworth&model=t600&modelYear=2007
  • CARB (SECONDARY): the entire T600 population is pre-2010 — 2007-2009 units "Need diesel particulate filter retrofit ($15,000-$25,000)"; pre-2004 "Must replace engine or retire truck." The single biggest buyer risk: a cheap T600 likely cannot be legally operated in California. https://www.skylinerrepaircenter.com/blog/carb-regulations-for-trucks-even-if-you-don-t-drive-in-california

Sources

  1. Kenworth T600 used listingsweb · research-cited · accessed 2026-09-11
  2. NHTSA recalls by vehicle — Kenworth T600official · verified-official · accessed 2026-09-11
  3. Caterpillar Truck Engines Legacy Maintenance Guideweb · research-cited · accessed 2026-09-11
  4. Eaton Fuller Transmission Problems and Solutionsweb · research-cited · accessed 2026-09-11
  5. Meritor Axle Maintenance and Common Failuresweb · research-cited · accessed 2026-09-11
  6. CARB Regulations for Trucksweb · research-cited · accessed 2026-09-11
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