FAG SS3578 Engine Crankshaft Repair Sleeve - Rear
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FAG SS3578 Engine Crankshaft Repair Sleeve - Rear

Brand FAG SS3578
Position Rear
Width On Shaft 0.813
Width On Shaft 20.65
Installation Depth 1.25
Installation Depth 31.75
Width 1
Width 25.4
Shaft Diameter 114.3
Shaft Diameter 4.5
Flange Diameter 123.19
Flange Diameter 4.85
Fits GMC · 3 vehicles

Precision repair sleeve. Restores sealing on damaged shaft surfaces with a controlled fit.

Heat-treated stainless steel. Built for durable surface protection and longer shaft service life.

No machining required. Simplifies repair work by avoiding shaft removal during service.

Cross-references 99450, 4133578100 and KWK99450 for the same application. See all 3.

$78.43Free shipping
In stock · usually ships same day before 1pm CST
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Order total $78.43
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Engine Crankshaft Repair Sleeve

The FAG SS3578 crankshaft repair sleeve restores sealing performance on a damaged shaft surface without requiring shaft removal or machining. Made from heat-treated stainless steel, it provides a precise repair solution that helps extend shaft service life and reduce premature wear.

Fits 1991-1993 GMC C6000 Topkick, rear. This part cross-references 99450 and KWK99450 for the same application.

Key Features

  • Heat-treated stainless steel construction for durable surface protection.
  • Precision repair sleeve for additional sealing on worn or damaged shafts.
  • No shaft removal or machining required during installation.
  • Cost-effective repair solution for restoring shaft sealing surfaces.
  • Part number SS3578 for identification and ordering.

Detailed Description

The FAG SS3578 is an engine crankshaft repair sleeve engineered to restore a damaged sealing surface and help prevent further wear. Its stainless steel construction and precision fit make it suitable for repairs where the shaft surface has been compromised but replacement is not the only option. For GMC C6000 Topkick applications, this sleeve offers a practical way to address sealing wear while avoiding machining steps that add time and cost. The SS3578 is a focused repair component for maintaining shaft integrity and sealing performance.

What It Helps Solve

  • Oil leakage caused by a worn crankshaft sealing surface.
  • Premature shaft wear from damaged contact areas.
  • Repair delays associated with machining or shaft removal.
  • Costly shaft replacement when surface repair is sufficient.

Installation Notes and Tips

Install the sleeve over the damaged shaft area according to service procedures for the application. Verify shaft diameter and installation depth before beginning the repair. The listed dimensions for SS3578 are 4.5 in shaft diameter, 1.25 in installation depth, 1 in width, and 4.85 in flange diameter.

Quality Assurance

FAG manufactures precision repair components for sealing and wear restoration. SS3578 is built as a stainless steel repair sleeve for a controlled, serviceable repair.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1993GMCC6000 Topkick6.0LV8Rear—
1992GMCC6000 Topkick6.0LV8Rear—
1991GMCC6000 Topkick6.0LV8Rear—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
994504133578100KWK99450