The 3rd gen Toyota 4Runner is LC Engineering's core 4Runner platform. 3RZ-FE 2.7L I4 and 5VZ-FE 3.4L V6 — including the LCE 5VZ replacement long block launched in 2025. Complete engine builds, supercharger and turbo kits, headers, suspension, and OEM-spec components from the engine builders who know this platform best.
Water Pump Gasket
(OEM)
Gaskets seal and mate surfaces between various components to keep oil, coolant, air, and fuel in their respective places. Over time gaskets become brittle and break. Replace...
Rear Main Seal
New OEM rear main seal. Genuine Toyota quality, so you know you're getting the best! High-quality silicone seals with a double lip for improved sealing.
Contact our Tech...
Silicone Adapter
(2.5“ I.D. to 2.75″ I.D.)
Building your own custom air intake or cooling system? Trail-Gear is proud to offer the same silicone adapters and couplers that we use on our own Extreme...
Silicone Adapter
(2.5 “ I.D. to 3.0″ I.D.)
Building your own custom air intake or cooling system? Trail-Gear is proud to offer the same silicone adapters and couplers that we use on our own...
Oxygen Sensor Install Kit
(2-Bolt Style)
This kit contains everything you need to install the factory 2-bolt O2 sensor into your custom exhaust. It allows you to weld in the O2 sensor wherever you...
2-Bolt Flange
(2 1/4")
Steel flange designed for connecting to our header collectors. This is perfect if you are fabricating your own exhaust from the header back. 3/8" thick, for 2-1/4" exhaust...
2-Bolt Flange
(You Choose Size)
2 1/4" Flanges:
Steel flange designed for connecting to our header collectors. This is perfect if you are fabricating your own exhaust from the header back. 3/8"...
Seal Saver
(Rear of Crankshaft)
Do you have a pesky oil leak coming from the rear main seal? Don't just keep swapping out rear main seals. LC Engineering carries this seal saver that slides right...
Seal Saver
(Rear Main Seal)
Do you have a pesky oil leak coming from the rear main seal? Don't just keep swapping out rear main seals. LC Engineering carries this seal saver that slides right over...
Rubber Tailpipe Hanger
(3-Hole)
Factory 3 Hole replacement rubber insulator for tailpipe.
Contact our Tech Support Line for further information at 928-575-2174.
High-Pressure Radiator Cap
The LC Engineering Large Radiator Cap is a critical component for maintaining the correct pressure in your Toyota’s cooling system. Measuring 2-1/4" (57mm) in diameter,...
Fuel Injector Isolators
(Bottom)
To isolate injectors in the stock intake manifold LC Engineering suggests changing these when rebuilding the engine or when servicing the fuel injectors. LC...
The third-generation Toyota 4Runner (1996–2002) is the platform LC Engineering has built its modern 4Runner identity around. It carries two engines: the 3RZ-FE 2.7-liter four-cylinder and the 5VZ-FE 3.4-liter V6. The 5VZ-FE is the marquee engine of the era — Toyota's first DOHC truck V6, the engine that anchored the 3rd gen 4Runner, the 1st gen Tacoma, and the 1st gen Tundra. LCE launched a replacement 5VZ long block in August 2025 that has become a center of gravity for the 5VZ rebuilder community.
Our 3rd gen 4Runner catalog is the deepest LCE 4Runner catalog by margin. For 5VZ-FE V6 builds we offer the replacement long block, full stroker programs, supercharger kits, turbo kits, header kits, performance camshafts, master rebuild kits, and the supporting components for high-output 5VZ builds. For 3RZ-FE 2.7L four-cylinder builds we offer long blocks, rebuild kits, and bolt-on performance. Suspension, drivetrain, brake, and OEM-replacement coverage rounds out the catalog.
If you are building a 3rd gen 4Runner, this is where LCE's engine-building DNA lives. Tech line: (928) 505-2501. Email: support@lcengineering.com.
Browse 3rd gen 4Runner parts above by system, or use these starting points: