Lot 1FTJW36F7VEA15573: 1997 Ford F-350 XLT

The 7.3L Power Stroke (technically the International Navistar T444E) is widely regarded as one of the most reliable and durable diesel engines ever put in a light-duty truck—often called “bulletproof” by enthusiasts and mechanics alike.

Key Reliability Strengths:

• Mechanical Simplicity: Unlike later emissions-era diesels, the 7.3L uses hydraulically actuated, electronically controlled unit injectors (HEUI) rather than complex high-pressure common-rail systems. This makes it more robust and easier to service.

• Proven Longevity: The specific truck you’re looking at has 214,831 miles and is described as running “tight and strong” with “no issues”—which is typical for these engines. Well-maintained 7.3Ls regularly exceed 300,000–500,000 miles, and many go even further.

Known Weak Points (Manageable):

• Camshaft Position Sensor (CMP): The only semi-common failure point—this truck just had it replaced • HPOP O-rings: The high-pressure oil pump can develop leaks over time • Glow plug system: The relay and/or glow plugs themselves can fail (cold-start issues) • CPS (Injector) wiring: The under-valve-cover harness connectors can loosen

Maintenance for Longevity: • Regular oil changes (every 5,000 miles given HEUI system’s oil dependency) • Coolant changes (diluted coolant kills head gaskets in any diesel) • Fuel filter changes

The fact that these OBS Fords are now “increasingly collectible” isn’t just nostalgia—the 7.3L represents a sweet spot of power (210–250 hp, 425–505 lb-ft), fuel efficiency (15–18 mpg), and mechanical longevity that hasn’t really been replicated in later emissions-era diesels.

Any other questions about this particular truck, or would you like me to find similar OBS diesels for comparison?