# Kenworth W990 Used Price & Common Problems | Big Rig Risk

> Used Kenworth W990 buying guide: documented failure risks and market prices.

**Verdict:** insufficient-data

Documented failure points and real market prices for the Kenworth W990, sourced and dated.

**Observed used price:** $79,950–$154,950

**Documented failure risks:**
- EGR valve/cooler: EGR valves and coolers on the PACCAR MX-13 (the W990's engine) operate in a high-soot environment; soot and carbon buildup over time restricts flow.
- fuel injectors: Class-action lawsuit alleges MX-13 fuel injectors clog after minimal use regardless of maintenance, causing power loss and potential total engine failure.
- turbocharger: MX-13 turbocharger failures cluster in a predictable high-mileage window.

## Sources
- [highwayandheavyparts.com (failure evidence)](https://highwayandheavyparts.com/blog/paccar-mx13-common-engine-issues/) (accessed 2026-09-05)
- [classaction.org (failure evidence)](https://www.classaction.org/news/mx-13-diesel-engine-in-certain-kenworth-peterbilt-trucks-plagued-by-fuel-injector-defect-lawsuit-says) (accessed 2026-09-05)
- [skylinerrepaircenter.com (failure evidence)](https://www.skylinerrepaircenter.com/blog/paccar-mx-13-engine-reliability-and-maintenance-guide/) (accessed 2026-09-05)
- [soarr.com dealer inventory (5 listings observed 2026-09-05)](https://www.soarr.com/for-sale/trucks/0/Kenworth/W990/all-for-sale) (accessed 2026-09-05)
- [NHTSA recall 21V546000 (VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM)](https://www.nhtsa.gov/recalls?nhtsacampaignnumber=21V546000) — "PACCAR Incorporated (PACCAR) is recalling certain 2022 Kenworth T680, T880, and W990 vehicles.  The HVAC controls may have insufficient soldering between the potentiometer(s) and the PCBA board, resulting in windshield defrost failure." (accessed 2026-09-11)
- [NHTSA recall 19V176000 (SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY)](https://www.nhtsa.gov/recalls?nhtsacampaignnumber=19V176000) — "PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T680, T800, T880, W900 and W990 trucks.  The rear axles may not contain oil." (accessed 2026-09-11)

_Last verified 2026-09-11. Source: Big Rig Risk — https://bigrigrisk.com/trucks/kenworth-w990/ — every claim checked against a primary source before publication (see /methodology/)._