Help keep engine oil sealed in at the back of the crankshaft with the APEX Automobile Parts Inc Crankshaft Seal Kit / Rear Main Seal Set ABS371, a part listed under both names that covers a wide range of V8 trucks, vans, SUVs and cars. It is a direct-fit replacement for many listed applications, among them the 1999-2013 Chevrolet Silverado 1500 4.8L / 5.3L / 6.0L / 6.2L, the 1999-2013 GMC Sierra 1500 4.8L / 5.3L / 6.0L / 6.2L and the 2000-2014 Chevrolet Tahoe 4.8L / 5.3L / 6.0L / 6.2L.
The rear main seal sits where the crankshaft exits the back of the engine block. The seal body stays stationary while its lip rides on the rotating crankshaft, holding engine oil inside the engine at that rear opening.
- Position: Rear main (rear crankshaft) seal.
- Engine coverage: V8-4.8L, V8-5.3L, V8-5.7L, V8-6.0L, V8-6.2L and V8-7.0L applications. The engine varies by vehicle and year.
- Quantity: One per listed application.
- Broad coverage: Many listed applications across Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac and Saab vehicles.
Signs this part may need replacing include oil seeping or dripping from the area between the engine and transmission, oil residue on the bottom of the bellhousing, or an oil level that drops between changes. Other seals and gaskets can leak in the same area, so confirm the source of the leak before replacing. Consult the vehicle service information for the installation procedure and any related parts.
See the "Vehicles it fits" section for the full list of applications and engine codes.
Frequently Asked Questions
What does an engine crankshaft seal kit like the APEX ABS371 do?
It seals the rear of the crankshaft where it leaves the engine block. The seal stays stationary while its lip rides on the spinning crankshaft to hold engine oil inside.
Is the ABS371 a front or rear crankshaft seal?
It is a rear main seal set for the rear crankshaft position on the listed applications.
Which engines does this seal kit fit?
It is listed for V8-4.8L, V8-5.3L, V8-5.7L, V8-6.0L, V8-6.2L and V8-7.0L engines, depending on the vehicle and year. See the "Vehicles it fits" section for each application.
What are signs a rear main seal may be leaking?
Signs include oil dripping between the engine and transmission, oil on the bellhousing, or a dropping oil level. Other nearby seals can leak too, so confirm the source before replacing.
How many ABS371 kits do I need?
The listed applications use one per vehicle. Consult the vehicle service information for the installation procedure and any additional parts the job requires.
