Decision dossierEvidence reviewed
on-highway tractor · Western Star 4900

Western Star 4900: Used-Buy Risk, Price & Recalls

Used Western Star 4900 prices ($24,950–$105,900), Cat C15 engine risks, confirmed NHTSA fire recalls, and the California CARB registration trap.

Status: published
Used range$24,950–$105,900
RecallON RECORD
Known risks4
Sources6
Verified2026-09-11
Safety notice

Recall on record for this model family

  • NHTSA 11V207000 (ENGINE): Cat C15 combustion-tube weld may burn through — fire risk (MY2008–2010) confirmedofficial notice
  • NHTSA 11V287000 / 10V339000 (FUEL PUMP): Bosch high-pressure fuel pump crack on DD13/DD15 — fuel leak confirmedofficial notice
  • NHTSA 11V146000 (ENGINE): MBE4000 EPA07 intake air grid heater short — fire risk confirmedofficial notice
  • NHTSA 17V761000 (BRAKE LIGHTS): brake lights may not activate on light pedal (2008–2018) confirmedofficial notice

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

Short answer: $24,950–$105,900 observed used (6 real listings; ~$45k typical). The classic 4900 runs pre-2010 Cat C15 / MBE4000 / early Detroit power — a California-registration risk (DPF retrofit $15k–$25k on 2007–2009 units) and the source of confirmed engine-fire recalls. Inspect the powertrain and check the VIN against NHTSA before buying. Used examples run roughly $24,950 to $105,900. Basis: Western Star 4900 used listings.

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

Decision status
inspect

$24,950–$105,900 observed used (6 real listings; ~$45k typical). The classic 4900 runs pre-2010 Cat C15 / MBE4000 / early Detroit power — a California-registration risk (DPF retrofit $15k–$25k on 2007–2009 units) and the source of confirmed engine-fire recalls. Inspect the powertrain and check the VIN against NHTSA before buying.

Confidence 55%
Market context
$45,000

6 observed comparables

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

What can make the cheap machine expensive?

ComponentSeverityDocumented repair cost
Caterpillar C15 fuel injectorshigh$4,000–$6,000
Meritor rear axle bearingmediumnot yet verified
Caterpillar C15 fuel injectorshigh

Contaminated fuel destroys C15 injectors — a set of eight injectors costs $4,000–$6,000. Check fuel-system service history and injector condition.

$4,000–$6,000
Caterpillar C15 overheating (head/block)high

Overheating a Cat C15 or C13 can crack cylinder heads or warp the block — repairs that cost $15,000–$25,000. Verify the cooling system and look for coolant leaks or white smoke at startup.

$15,000–$25,000
Eaton Fuller manual transmissionhigh

The transmission pops out of 9th or 10th gear under load; rebuild runs $3,500–$4,500. Road-test under load through the upper gears.

$3,500–$4,500
Meritor rear axle bearingmedium

Whining or growling sound that gets worse under load signals rear-axle bearing wear. Listen under load on a road test.

Cost not yet verified

Common questions

How much does a used Western Star 4900 cost?

Observed listings range roughly $24,950 to $105,900 depending on age, condition, and configuration (as of 2026-09-11).

What fails on the Western Star 4900?

The most cited concerns in our evidence record: Caterpillar C15 fuel injectors, Caterpillar C15 overheating (head/block), Eaton Fuller manual transmission. See the risk breakdown above for details and sources.

Is the Western Star 4900 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; 34 listings, 6 with real prices): 2014 $24,950 (146,476 mi); 2012 SA $27,999 (31,177 mi); 2007 $42,900 (312,755 mi); 2014 $49,900 (118,044 mi); 2013 $72,900 (716 mi); 2015 $105,900 (520,628 mi). https://www.soarr.com/for-sale/trucks/0/Western%20Star/4900/all-for-sale
  • RECALL (PRIMARY, NHTSA, verbatim): 11V207000 — "CERTAIN MODEL YEAR 2008-2010 WESTERN STAR 4900 TRUCKS EQUIPPED WITH CATERPILLAR C15 ENGINES... DEGRADATION OF A COMBUSTION TUBE WELD... MAY BURN THROUGH CERTAIN BODIES USED ON C15 ENGINES." Consequence: fire. MY2010 query returned Count=14. https://api.nhtsa.gov/recalls/recallsByVehicle?make=western%20star&model=4900&modelYear=2010
  • CARB (SECONDARY): "Model year 2010 and newer trucks generally comply"; 2007-2009 "Need diesel particulate filter retrofit ($15,000-$25,000)"; 2004-2006 "Need DPF plus possible engine replacement ($25,000-$40,000)." The cheap high-mileage 4900s skew 2007-2015 — a 2007-2009 unit is a California-registration risk. https://www.skylinerrepaircenter.com/blog/carb-regulations-for-trucks-even-if-you-don-t-drive-in-california

Sources

  1. Western Star 4900 used listingsweb · research-cited · accessed 2026-09-11
  2. NHTSA recalls by vehicle — Western Star 4900official · 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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