Fel-Pro 2947 is a 2-piece rear main seal set built to help stop oil leaks at the rear of the crankshaft on Mopar big block and Gen II Hemi V8 engines. Its fluoroelastomer construction is suited for heat, oil exposure, abrasion, high crankcase vacuum, elevated temperature, and high RPM use, making it a practical sealing choice for performance builds and demanding service work.

Fel-Pro 2947 Features:

• Fits Chrysler, Dodge, and Plymouth applications using 361, 383, 400, 413, 426 Wedge, 426 Hemi, and 440 Mopar B and RB-series big block V8 engines from the late 1950s through 1980.
• 2-piece rear main seal design services the rear crankshaft sealing area where engine oil leaks commonly develop.
• Fluoroelastomer material resists heat, engine oil, and abrasion to support long service life in demanding engine environments.
• Designed for high crankcase vacuum, elevated temperature, and high RPM operating conditions commonly found in performance and race engine use.
• Sold individually for one engine service job.

Includes:

• 2-piece rear main seal set

A strong fit for performance Mopar B and RB-series big block builds, Gen II 426 Hemi engines, and severe-duty applications where the rear crankshaft seal must handle heat, oil, vacuum, and RPM stress.

Use on non-emissions-controlled vehicles only. Confirm engine family and displacement before ordering, especially on swapped or rebuilt Mopar big block applications.