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National 99175 Engine Crankshaft Repair Sleeve - Front
| Brand | National 99175 |
|---|---|
| Position | Front |
| Flanged Outside Diameter (Inch) | 2.063 |
| Flanged Outside Diameter (MM) | 52.400 |
| Installation Depth (Inch) | 0.813 |
| Installation Depth (MM) | 20.650 |
| Material | Stainless Steel |
| Overall Width (Inch) | 0.875 |
| Overall Width (MM) | 22.230 |
| Shaft Size (Inch) | 1.750 |
| Shaft Size (MM) | 44.450 |
| Shaft Size Maximum (Inch) | 1.753 |
| Shaft Size Maximum (MM) | 44.530 |
| Shaft Size Minimum (Inch) | 1.747 |
| Shaft Size Minimum (MM) | 44.370 |
| Unit of Dimension | Inch |
| Width on Shaft (Inch) | 0.750 |
| Width on Shaft (MM) | 19.050 |
| Fits | Chevrolet, GMC, Oldsmobile, Ford, and Pontiac · 104 vehicles |
Stainless steel construction. Helps resist wear in demanding sealing applications.
Repair sleeve design. Restores a smooth sealing surface on the shaft.
National premium sealing solutions. Backed by more than 75 years of industry experience.
Cross-references National 99175, 99175RS and KWK99175 for the same application. See all 3.
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Engine Crankshaft Repair Sleeve for Transfer Case Applications
National 99175 is a stainless steel engine crankshaft repair sleeve built for precise shaft restoration where a worn sealing surface needs correction. With a 1.750 inch shaft size and a flanged design, it supports accurate seal contact on select Ford, Chevrolet, GMC, Oldsmobile, and Pontiac applications.
Use National 99175 when servicing driveline and transfer case-related sealing surfaces on vehicles such as the Ford F-150, Bronco, and Ranger, or the Chevrolet Astro and GMC Safari. This part number 99175 is also referenced in interchange listings for 99175RS and KWK99175.
Key Features
- Stainless steel construction for corrosion resistance and durable sealing-surface repair
- Flanged outside diameter: 2.063 in. (52.400 mm)
- Installation depth: 0.813 in. (20.650 mm)
- Overall width: 0.875 in. (22.230 mm)
- Width on shaft: 0.750 in. (19.050 mm)
- Shaft size: 1.750 in. with 1.747 in. minimum and 1.753 in. maximum range
- Engine crankshaft repair sleeve / repair sleeve application
Detailed Description
National 99175 is engineered as a repair sleeve for restoring a worn shaft sealing area to a usable surface profile. Its stainless steel material and defined shaft dimensions help maintain consistent seal contact where wear has affected the original surface. The flanged profile and controlled installation depth support a secure fit during service work on select 4WD and transfer case-equipped vehicles.
Compatible With 1990-1998 Chevrolet Astro, N/A; 1990-1998 GMC Safari, N/A; 1991-1994 and 1996-1997 Oldsmobile Bravada, N/A; 1982-1991 Ford F-150, N/A; 1982-1990 Ford Bronco, N/A; 1984-1990 Ford Bronco II, N/A; 1982-1990 Ford F-250, N/A; 1982-1990 Ford F-350, N/A; 1983-1990 Ford Ranger, N/A; 1987-1989 Ford Ranger, N/A; and 1962 Pontiac Tempest, Front.
What It Helps Repair
- Oil leakage caused by a worn crankshaft or shaft sealing surface
- Seal wear from grooves, scoring, or surface damage
- Loss of proper seal contact on serviceable driveline components
- Repeat leakage after prior seal replacement when the shaft surface remains worn
- Fitment issues on select Ford, Chevrolet, GMC, Oldsmobile, and Pontiac applications
Installation Notes and Tips
Measure the shaft before installation to confirm it falls within the 1.747 to 1.753 inch range. Clean the shaft thoroughly, inspect for burrs or heavy scoring, and verify the repair sleeve seats to the specified installation depth. For fitment, confirm the vehicle configuration and transfer case notes listed for each application, especially on Ford part-time 4WD models and Chevrolet/GMC full-time 4WD models.
Quality Assurance
National has supplied sealing solutions for more than 75 years and continues to develop service parts for modern vehicle repair needs. National 99175 reflects that engineering focus with a stainless steel repair sleeve designed for accurate dimensional control and dependable service fit.
This part fits 104 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1998 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1998 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1998 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1998 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1997 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1997 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1997 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1997 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1997 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1997 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1996 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1996 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1996 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1996 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1996 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1996 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1995 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1995 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1995 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1995 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1994 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1994 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1994 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1994 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1994 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1994 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1993 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1993 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1993 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1993 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1993 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1993 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1992 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1992 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1992 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1992 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1992 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1992 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1991 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1991 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1991 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1991 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1991 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1991 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1991 | Oldsmobile | Bravada | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1990 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1990 | Chevrolet | Astro | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1990 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1990 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1990 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1990 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1990 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1990 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1990 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 4472 Transfer Case; 1 Speed |
| 1990 | GMC | Safari | AWD | — | — | N/A | Full Time 4WD; with Borg-Warner 1372 Transfer Case; 2 Speed |
| 1989 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1989 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1989 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1989 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1989 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1989 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1989 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1359 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1988 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1359 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1987 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1359 Transfer Case; with Part Time 4WD; 2 Speed |
| 1986 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1986 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1986 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1986 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1986 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1986 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1985 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1985 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1985 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1985 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1985 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1985 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1984 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1984 | Ford | Bronco II | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1984 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1984 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1984 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1984 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1983 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1983 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1983 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1983 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1983 | Ford | Ranger | 4WD | — | — | N/A | with Borg-Warner 1350 Transfer Case; with Part Time 4WD; 2 Speed |
| 1982 | Ford | Bronco | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1982 | Ford | F-150 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1982 | Ford | F-250 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1982 | Ford | F-350 | 4WD | — | — | N/A | with Borg-Warner 1345 Transfer Case; with Part Time 4WD; 2 Speed |
| 1962 | Pontiac | Tempest | — | 3.5L | V8 | Front | — |
| No rows match your filter. | |||||||
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
National — 9917599175RSKWK99175