Genuine Federal Mogul 879M-2 Main Bearing Set (NOS)
This is a genuine New Old Stock (NOS) Federal Mogul crankshaft main bearing set, precision-engineered in the USA for vintage Buick V8 engines. This specific set is finished to a .002" undersize, making it an essential component for engine rebuilds requiring precise tolerances on Buick 264 and 322 cubic inch "Nailhead" V8 engines. This high-quality kit ensures proper oil clearance and structural integrity for the bottom end of your classic Buick restoration. Coverage includes Super and Roadmaster models for 1953, and expanded fitment for all Buick models—including Special, Century, Super, Roadmaster, and Skylark—for the 1954, 1955, and 1956 production years.
Key Features:
- Brand: Federal Mogul
- Part Number: 879M-2 (.002 Undersize)
- Included Components: (4) 1926SB2 Bearings; (1) 1928SB2 Bearing
- Interchange: MS-1555M (Standard Equivalent)
- Engine Fitment: 264 CID / 322 CID V8
- Origin: Made in the USA
- Condition: New Old Stock (NOS)
Verified Vehicle Fitment:
| Make |
Model |
Year |
Engine |
Notes |
| Buick |
Super / Roadmaster (Series 50 / 70) |
1953 |
322 V8 |
.002 Undersize Set |
| Buick |
Special / Century / Super / Roadmaster / Skylark |
1954-1956 |
264 / 322 V8 |
.002 Undersize Set; Fits all models these years |
Fits Years:
1953 1954 1955 1956
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.
