The 1999 Toyota 4Runner comes equipped with Toyota’s 5VZ-FE 3.4-liter V6 engine, producing 183 horsepower and 217 lb-ft of torque. This naturally aspirated, dual overhead cam engine features aluminum heads with iron block construction and multi-port fuel injection. The 3.4L V6 was Toyota’s mid-range truck engine during this era, offering good power for towing and off-road use while maintaining reasonable fuel economy. It’s paired with either a 5-speed manual or 4-speed automatic transmission, with available part-time 4WD system featuring a two-speed transfer case for serious off-road capability.

The 1999 Toyota 4Runner shares most parts with the 1996-2002 third-generation 4Runner models. Engine components from the 3.4L V6 are also compatible with 1995-2004 Toyota Tacoma and 1996-2002 Toyota T100 pickup trucks that used the same 5VZ-FE engine. Body panels, interior trim, and suspension components interchange within the 1996-2002 model years, though there were minor updates in 2001. The transmission, transfer case, and differential components also fit other Toyota trucks from this era with the same drivetrain configuration, making parts relatively easy to source from multiple vehicle lines.

Parts availability changes daily. Call us at (603) 392-7313 or visit our online shop to check current inventory from this specific vehicle. If we have sold a part you need, our Parts Broker service can source it from our network of partner yards nationwide.

Yes! We ship parts from this vehicle and our entire inventory nationwide. Most orders ship within 1-2 business days via FedEx or freight carriers for larger components like engines and transmissions. Call (603) 392-7313 for a shipping quote on any part.

The 3.4L V6 in the 1999 4Runner is generally reliable when properly maintained, with many examples exceeding 250,000 miles. The engine’s main weakness is the timing belt service requirement every 90,000 miles – this is critical since it’s an interference engine. Regular coolant changes help prevent head gasket issues, and using quality oil prevents timing chain tensioner problems. The bottom end is very robust, rarely experiencing internal failures. Overall, this engine responds well to maintenance and can provide decades of service when the timing belt, water pump, and cooling system are properly serviced on schedule.