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1982-95 Mustang Ford Performance One Piece Rear Main Seal (351W Swap) 5.8L by Ford Performance

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  • 1982-95 Mustang 5.8L One Piece Rear Main Seal, M-6701-B351
Ford Performance Mustang One Piece Rear Main Seal (351W Swap) (82-95) 5.8L M-6701-B351

Have a leaking rear main seal on your 5.8L/351W swap Mustang? Pick up this Ford Performance replacement!

Item #LRS-6701B
MPN# M-6701-B351

Everyday Low Price: $14.99

In Stock Ships tomorrow!

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  • Direct Replacement For Leaking Or Damaged Rear Main Seal
  • Perfect for 351W Swap Projects


  • Rubber Construction
  • 1 Piece Design
  • Fits 1982-2005 5.8L

What's in the Box

  • (1) Rear Main Seal

Made in the USA

Product Description

This Ford Performance M-6701-B351 is a stock style one-piece rear main seal for your 5.8L powered 1979-1995 Mustang. It is made from rubber and will be a direct replacement for your 351 swap if using a production 5.8L block manufactured from 1990-1996 or a FRPP 351W block manufactured after 1993. These are perfect for your Fox Body or SN-95 Mustang 351w swap project! Don't for get to pick up a new oil pan gasket to finish off the install the right way - Ford Performance 5.8L Oil Pan Gasket.

Ford Performance Racing Parts "Packs" and Component Parts Limited Warranty - Click Here
Ford Performance Racing Parts - NO WARRANTY - Click Here
Ford Performance Racing Parts Crate Engine Limited Warranty - Click Here

California Residents:
Prop 65 Warning SignWARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

Product Videos

How To: Mustang Rear Main Seal Replacement (1982-2004 3.8L, 5.0L)

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

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Vehicle Applications

Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85) - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93) - 1994 (94) - 1995 (95)

About This Brand

Ford Performance
Ford Performance - Mustang Ford Racing Parts
Ford Performance Parts is the leader in performance parts and accessories for Mustang and Ford Lightning.

LMR.com is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at Late Model Restoration. If you want the best for your Mustang or SVT Lightning, look no further than Ford Performance Parts!

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