Product Description
Genuine Michigan 797 P .030 Crankshaft Main Bearings (NORS)
Rebuild the foundational bottom end of your classic vintage Ford tractor with this New Old Replacement Stock (NORS) Michigan crankshaft main bearing set. Manufactured in the USA by D.A.B. Industries, Inc., this kit is a 100% complete, 3-journal full engine set finished to a .030" Undersize (.030 U.S.).
This kit contains all 3 factory-matched positional component pairs required to fully overhaul your 4-cylinder tractor or industrial power unit.
Key Features:
- Brand: Michigan Engine Bearings (D.A.B. Industries, Inc.)
- Part Number: 797 P .030
- Position: Crankshaft Main Bearings (Full Engine Set)
- Size: .030" Undersize (.030 U.S.)
- Set Quantity: 3 Pairs Total (Completes 1 Engine)
- Individual Component Box Breakdown: 2x Pairs Part No. 6833 CAP CA (Positions 1 & 2 / Front & Center Mains), 1x Pair Part No. 6834 (Position 3 / Rear Main Thrust Bearing)
- Major Industry Interchanges: Sealed Power 797M .030 / Clevite MS-519P-30 / Federal Mogul 797M
- Origin: Made in USA
- Condition: NORS (New Old Replacement Stock)
Fitment:
| Make / Application | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Ford Tractors (Gas) | NAA (Golden Jubilee) / 501 / 600 / 620 / 640 / 700 / 740 / early 2000 | 1953–1964 | 134 CID Inline-4 | YES (Complete 3-Main Set); .030" Undersize |
| Ford Tractors (Diesel) | 501 / 601 / 701 Series | 1958–1964 | 144 CID Inline-4 Diesel | YES (Complete 3-Main Set); .030" Undersize |
| Ford Tractors (Gas/Diesel) | 800 / 820 / 850 / 900 / 801 / 901 / 1801 / early 4000 | 1953–1964 | 172 CID Inline-4 | YES (Complete 3-Main Set); .030" Undersize |
| Ford Industrial | Industrial Power Units (Pumps, Generators, Chippers, Tugs) | 1953–1967+ | 134 CID & 172 CID Inline-4 | YES (Complete 3-Main Set); .030" Undersize |
Rebuilder's Sizing & Application Warning
Tractor/Industrial Only: This set fits the 4-cylinder tractor engine family. It will NOT fit automotive passenger cars or trucks (such as the Ford Falcon or Econoline van), even if they are listed as a 144 or 170 cubic inch displacement, as those are entirely different inline-6 automotive architectures.
Sizing: These bearings are finished to a .030" Undersize. They are engineered exclusively for vintage crankshaft main journals that have been professionally machined and ground down by 0.030 inches.
Fits Years:
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967
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.
