Product Description
Genuine Federal Mogul 6033M-10 Main Bearing Set (NORS)
This genuine Federal Mogul 6033M-10 Main Bearing Set is a premium New Old Replacement Stock (NORS) component, specifically engineered for the British Leyland 1798cc (1.8L) 4-cylinder engine family, most notably the legendary MG MGB. Manufactured in the USA, these bearings provide the essential oil clearance and high-load durability required for a precision rebuild of the 18V and early 18G/GA engine series. Featuring a .010" undersize, this set is a critical requirement for maintaining proper crankshaft alignment and restoring correct oil pressure in engines where the crankshaft journals have been professionally turned. It is a direct fit for 1964-1980 MG MGB and MGB GT models, as well as several Austin and Wolseley intermediate variants.
Key Features:
- Brand: Federal Mogul
- Part Number: 6033M-10
- Position: Crankshaft Main Bearings
- Size: .010" Undersize
- Engine Fitment: 1798cc (1.8L) L4 (British Leyland / MG)
- Journal Diameter: 2.1265" / 2.1270" (Standard)
- Origin: Made in the USA
- Condition: NORS (New Old Replacement Stock)
Verified Vehicle Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| MG | MGB / MGB GT | 1964-1980 | 1.8L L4 (1798cc) | 5-Main Bearing Engine; .010" U/S |
| British Leyland | Marina / 1800 Mk I, II, III | 1964-1975 | 1.8L L4 (1798cc) | .010" Undersize Journal |
| Wolseley | 18/85 Mk I, II, S | 1967-1972 | 1.8L L4 (1798cc) | .010" Undersize Journal |
Fits Years:
1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980
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 and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these parts may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
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.
