Home » General Motors GM-41479-B Rear Crankshaft Oil Seal Installer Set Alt.
Stallion ST-197 J-41479-B 4.8L, 5.3L, 5.7L, 6.0L, & 6.2L Rear Crankshaft Oil Seal Installer Set
Stallion ST-197 J-41479-B 4.8L, 5.3L, 5.7L, 6.0L, & 6.2L Rear Crankshaft Oil Seal Installer Set

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Tillman Tools

General Motors GM-41479-B Rear Crankshaft Oil Seal Installer Set Alt.

SKU: SLNST-197
$297.99

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General Motors GM-41479-B Rear Crankshaft Oil Seal Installer Set (Alt. ST-197)

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

The GM-41479-B Rear Crankshaft Oil Seal Installer Set is designed for installing seals and rear housing part numbers 12639250 or 89060436. For seal/rear housing part numbers 14088556, 14088557, or 10088158, you will need GM-35621-B. or ST-192.

Key Features:

  • Compatibility: It is suitable for supercharged 6.2L V8s with a 9-bolt rear crankshaft flange. The J-41479-B does not fit 9-bolt crankshafts, but ST-197 offers service back to 1997.
  • Durability: It is constructed from steel rather than plastic, ensuring longevity and reliability. Even the ball bearings are made in the USA.
  • Precision Installation: Ensures correct seal installation, preventing damage and potential leaks.

Important Note: Unapproved installation methods may damage or incorrectly install the seal, resulting in leaks.

This tool is the only Gen 3 installer on the market made of steel, providing unmatched durability and performance.

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