Keep engine oil sealed in at the back of the crankshaft with the APEX Automobile Parts Inc Crankshaft Seal Kit, part number ABS821, a rear main seal set. It is a direct-fit replacement for many vehicles, among them the 1995-2020 Toyota Tacoma 2.4L / 2.7L, 1996-2000 Toyota 4Runner 2.7L and 1994-1998 Toyota T100 2.7L; see the Buyer's Guide tab for the full list.
- Rear main seal set: seals the rear of the crankshaft where it exits the engine block, helping retain engine oil.
- Position: rear.
- Quantity per application: 1. The listed applications use one set.
- Engine coverage: listed for L4-2.4L and L4-2.7L applications.
How it works: the seal stays stationary while its sealing lip contacts the rotating crankshaft. This keeps oil inside the engine as the crank turns.
Signs this part may need replacing: oil seeping where the engine meets the transmission, oil drips under the rear of the engine, or an oil level that keeps dropping between changes. Other gaskets and seals in the same area can also leak, so confirm the source of the leak before replacing. Replacement generally requires separating the transmission from the engine. Follow the vehicle service information for the procedure, the correct fasteners, and whether those fasteners may be reused.
