Product Description
Genuine Johnson Set No. 37 X20 Main Bearing Set (NOS)
Restore your vintage engine's oil pressure and bottom-end reliability with this genuine Johnson Engine Main Bearing Set. Manufactured by the renowned Johnson Bronze Company of New Castle, PA, this New Old Stock (NOS) set is engineered specifically for the legendary Chevrolet 216 and 235 cubic inch straight-six engines. Designed for the 4-main-bearing "Stovebolt" engines produced between 1940 and 1953, this set includes the specialized precision insert shells required to refresh your crankshaft journals. As an original Made in the USA component, this kit provides the authentic material composition and exacting tolerances required for a period-correct restoration of your classic Chevrolet passenger car or truck.
Key Features:
- Brand: Johnson Engine Bearings
- Part Number: Set No. 37 X20 (.020 Undersize)
- Interchange: MS-174 M / MS174M
- Individual Shells: NH 470 (1), NH 471 (4), NH 472 (1), NH 473 (1)
- Engine Fitment: Chevrolet 216 CID & 235 CID OHV L6 (Splash-Oiler type)
- Position: Complete Main Crankshaft Set
- Origin: Made in the USA
- Condition: New Old Stock (NOS)
Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Chevrolet | Master / Special Deluxe / Fleetline / Styleline | 1940-1952 | 216 CID L6 | 4-Main Bearing setup |
| Chevrolet | One-Fifty / Two-Ten / Bel Air / Truck | 1941-1953 | 235 CID L6 | Splash-Oiler / "Low Pressure" engines only |
| Chevrolet | Pickup / Panel / Suburban / AK / BK Series | 1940-1953 | 216 / 235 L6 | .020 Undersize required |
Fits Years:
1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953
Note on Photos: The images provided are of the actual item you will receive. Please inspect the photos carefully to confirm the condition and specific features of the part. Because these are vintage components, minor surface variations or packaging wear may be present; however, the part pictured is the exact unit being sold.
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.
