Product Description
Genuine Federal Mogul 9803 SB-20 Main Bearing Set (.020 Undersize) (NORS)
This NORS (New Old Replacement Stock) Federal Mogul 9803 SB-20 Main Bearing Set, .020 undersize, is a high-quality, American-made component designed for the crankshaft of various 1939-1948 Ford and Mercury V8 engines. Essential for engine rebuilds, these bearings ensure proper crankshaft rotation and oil clearance, restoring critical engine function for classic Ford Passenger, Ford Truck, and Mercury Eight models.
Key Features:
- Brand: Federal Mogul
- Part Number: 9803 SB-20
- Position: Crankshaft Position 3
- Engine Fitment: V8 85-90 HP / V8 100 HP / V8 95-100 HP / 221 Eng.
- Origin: Made in U.S.A.
- Condition: NORS (.020 Undersize)
Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Ford | Passenger / Truck | 1939-1948 | V8 85-90 HP / V8 100 HP / V8 95-100 HP / 221 Eng. | .020 Undersize |
| Mercury | Eight | 1939-1948 | V8 85-90 HP / V8 100 HP / V8 95-100 HP / 221 Eng. | .020 Undersize |
Fits Years:
1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Note on Stock Photos: Due to our inventory of multiple identical units for this specific part number, we utilize representative stock photos for this listing. You will receive a component that strictly meets all listed specifications and fitment requirements. Please be aware that because these are vintage parts, minor cosmetic variations—such as surface finish, color, or production markings—may exist between different manufacturing runs. These slight aesthetic differences are a result of historical production processes and do not impact the part's integrity, performance, or authenticity.
A Note on Fitment Accuracy: We manually research our fitment data using vintage manufacturer catalogs to provide you with the most accurate information possible. However, because we are human and these decades-old resources can occasionally contain errors, we cannot guarantee 100% accuracy. We strongly encourage you to perform your own due diligence and verify this part number for your specific application before purchasing. Please note that this part may also fit other vehicles or years not explicitly listed in our research.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
