Home » General Motors GM-41479-C Rear Oil Seal Installer
Kent-Moore J-41479-B Rear Oil Seal Installer
Kent-Moore J-41479-B Rear Oil Seal Installer

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GM Special Tools and Equipment

General Motors GM-41479-C Rear Oil Seal Installer

SKU: GM-41479-C
$519.99

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General Motors GM-41479-C Rear Oil Seal Installer

Superseded from GM-41479-B

Kent-Moore Tool Number: J-41479-B

If you have the following seal/rear housing part numbers:

5.7L Y CAR The rear seal on the LSI engine has two inner sealing lips. One is made of ribbed Teflon and is fragile. If installed without using GM-41479-B, the lip will roll causing an oil leak.

Applications: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and more

Additional Information:

  • For 1986 - 1996 models, use GM-35621-B.
  • Due to their performance output, supercharged 6.2L V8s have a 9-bolt rear crankshaft flange. The GM-41479 installer will not fit 9-bolt crankshafts. Use GM-41479-B, which will back-service to 1997.
  • Unapproved installation methods may damage or incorrectly install the seal, resulting in leaks.

Do not use power tools. Breakage due to the use of power tools voids your warranty.

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