When properly maintained, a 1998 Toyota 4Runner can last well over 300,000 miles—and in many cases, even 400,000 miles or more. This classic SUV is known for its legendary durability, especially when equipped with the 3.4L V6 engine. Whether you’re looking to buy one or already own it, here’s everything you need to know about its long-term reliability and lifespan.
Short Answer: Over 300,000 Miles Is Common
Yes, a 1998 Toyota 4Runner can easily reach 300,000 miles or more with regular maintenance. Many owners have documented their 4Runners running reliably well past that mark—some even approaching 500,000 miles.
That’s because Toyota built this generation of the 4Runner (1996–2002) with a focus on long-term toughness and simplicity. The 3rd-gen models are often regarded as one of the most bulletproof SUVs of the last 30 years.
What Makes the 1998 4Runner So Reliable?
- Proven drivetrain: The 3.4L V6 engine (5VZ-FE) is known for lasting half a million miles with proper care.
- Solid frame: Built on a rugged body-on-frame chassis made for off-roading and towing.
- Simple electronics: Fewer sensors and electronics than modern vehicles = fewer things to fail.
- Toyota engineering: These vehicles were engineered for reliability, not just short-term performance.
High-Mileage Examples
Still not convinced? Here are a few real-world mileage reports from owners:
- “My 1998 4Runner has 365,000 miles and still runs like a champ.”
- “Bought mine with 240,000 on the clock, now at 330,000 and still going strong.”
- “Currently at 412,000 miles. I’ve done regular maintenance and nothing major has failed.”
Of course, mileage isn’t the only factor—how well the vehicle was cared for matters more.
Maintenance Tips to Keep It Going
If you want your 1998 4Runner to last, stick to a consistent maintenance schedule. Here’s what you should focus on:
- Change oil every 3,000–5,000 miles (conventional) or 5,000–7,500 (synthetic)
- Replace timing belt and water pump every 90,000–100,000 miles
- Flush transmission fluid every 30,000–60,000 miles
- Keep coolant fresh and check for radiator leaks
- Grease suspension and check bushings regularly
- Inspect rust-prone areas, especially if you live in a snowy region
Common Issues to Watch For
Even the most reliable vehicles have some weak points. Here are a few known problems with the 1998 4Runner:
- Rust: Frame and rear axle rust is common, especially in northern states
- Rear hatch window motor: These often fail and can be costly to replace
- Oil leaks: Valve cover gaskets and rear main seals may leak with age
- Suspension wear: Bushings, ball joints, and shocks wear out over time, especially off-road
How to Tell If a High-Mileage 4Runner Is Worth Buying
Buying a 1998 4Runner with over 200,000 miles isn’t risky—if the vehicle has been maintained properly. Here’s what to look for:
- Detailed service history (especially timing belt jobs)
- Minimal rust on the frame and body mounts
- Strong shifting and no overheating
- Signs of regular fluid changes
- Solid idle and no engine knocking
If you find a clean one, it could easily serve you for another 100,000+ miles.
Will a Super High-Mileage 4Runner Still Be Reliable?
Yes, but expect to replace aging parts. Once you’re in the 300K+ range, wear items like bushings, fuel pumps, alternators, and radiators may need attention. These aren’t deal breakers—they’re expected maintenance for a vehicle that’s outlived most others on the road.
With good parts availability and a strong DIY community, keeping a high-mileage 4Runner on the road is very achievable.
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Conclusion
The 1998 Toyota 4Runner is one of the most reliable and long-lasting SUVs ever built. With proper care, it’s not unusual to see these trucks running strong at 300,000 miles and beyond. Whether you’re an owner or a buyer, you can count on this classic Toyota to go the distance—literally.
And remember, when it comes to saving money on vehicle upkeep, reconditioning your old batteries is a smart place to start. Grab the Battery Reconditioning Course and keep your 4Runner—and your budget—going strong.