# International LoneStar Used Price & Common Problems | Big Rig Risk

> International LoneStar: used $31,000 to $139,900. Documented problems: fuel pump and injectors. What to inspect before you buy.

**Verdict:** inspect

Used International LoneStar: $31,000–$139,900 observed used across 3 listings. Buy only after inspection.

**Observed used price:** $31,000–$139,900

**Documented failure risks:**
- Fuel pump: Fuel pump is the headline complaint: "the most common problem is the fuel pump... from 17
- Fuel pump symptoms: Diagnostic tells for a failing fuel pump include rough idling and excessive smoke from the stacks.
- Injectors: Occasional injector failure is treated by the presenter as normal wear, "the price you pay
- Low power: Low power is called "the next biggest thing on the list" after the fuel pump (@ 00:02:41-
- EGR valve sticking open: EGR valve sticking open from carbon buildup, worsened by extended idling; on-camera advice

## Sources
- [youtube.com](https://www.youtube.com/watch?v=oh6-x3lp-iM) (accessed 2026-08-19)
- [youtube.com](https://www.youtube.com/watch?v=l0qIJEBlSPw) (accessed 2026-08-19)
- [dieselrebuildkits.com](https://dieselrebuildkits.com/) (accessed 2026-08-19)
- [cylinder-heads.com](https://www.cylinder-heads.com/cummins-isx/) (accessed 2026-08-19)
- [Here Is Why You Do Not Buy An International Semi Truck](https://www.youtube.com/watch?v=Z3EhB_xXaGE) (accessed 2026-08-19)
- [Diesel engine out of frame vs in frame major overhaul differences and cost of re](https://www.youtube.com/watch?v=hlaxfL951HU) (accessed 2026-08-19)
- [soarr.com dealer inventory listings (3 real listings observed 2026-09-05)](https://www.soarr.com/for-sale/trucks/0/International/LoneStar/all-for-sale) (accessed 2026-09-05)
- [NHTSA recall 12V507000 (STEERING)](https://www.nhtsa.gov/recalls?nhtsacampaignnumber=12V507000) — "Navistar is recalling certain model year 2013 International brand LoneStar, ProStar, and WorkStar commercial trucks, manufactured from April 22, 2012, through October 29, 2012, and equipped with steering wheel feature codes 05CAW, 05CAX, 05CAZ, 05CBA, or 05WBD.  The steering wheel may not have been completely welded to its mounting hub." (accessed 2026-09-11)
- [NHTSA recall 10V037000 (ELECTRONIC STABILITY CONTROL (ESC))](https://www.nhtsa.gov/recalls?nhtsacampaignnumber=10V037000) — "NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2009-2010 INTERNATIONAL PROSTAR AND LONESTAR TRUCKS EQUIPPED WITH FEATURE CODE 04AZT ROLL STABILITY CONTROL.  THE AIR LINE THAT SUPPLIES THE TRACTION SOLENOID VALVE OF THE ROLL STABILITY CONTROL (RSC) SYSTEM MAY HAVE BEEN CONNECTED TO AN INCORRECT PORT ON THE AIR TANK. THIS CONDITION WILL AFFECT AIR MODULATION TO THE TRAILER BRAKES IF RSC IS ACTIVATED DURING A ROLL STABILITY EVENT.  THIS CONDITION AT NO TIME AFFECTS THE NORMAL DESIGN FUNCTION OF THE TRACTOR AND TRAILER SERVICE BRAKES WHEN ACTIVATED BY THE DRIVER, OR THE FUNCTION OF THE TRACTOR RSC SY..." (accessed 2026-09-11)

_Last verified 2026-09-11. Source: Big Rig Risk — https://bigrigrisk.com/trucks/international-lonestar-cummins-x15/ — every claim checked against a primary source before publication (see /methodology/)._