Genuine Johnson SET-529 X1 Main Bearing Set (NORS)
Restore the critical tolerances of your vintage Mopar engine with this genuine Johnson SET-529 X1 Main Bearing Set. Proudly manufactured in the USA, this New Old Replacement Stock (NORS) set is preserved in its original vintage packaging, providing the superior material quality and precision engineering required for high-standard restorations. The "X1" designation indicates a .001-inch undersize, specifically designed for crankshafts that require a minimal correction to achieve perfect oil clearance. This set is engineered for 1957 Chrysler 318 cubic inch "A-Block" V8 engines with polyspheric heads, ensuring a factory-correct fit for Newport, Windsor, and Saratoga models.
Key Features:
- Brand: Johnson Bronze / Associated Brands
- Part Number: SET-529 X1 (.001 Under)
- Position: Crankshaft Main Bearings (Full Set)
- Engine Fitment: Chrysler 318 ci "A-Block" Poly V8
- Origin: Made in the USA
- Condition: NORS (New Old Replacement Stock)
Verified Vehicle Fitment:
| Make |
Model |
Year |
Engine |
Notes |
| Chrysler |
Newport / Windsor / Saratoga |
1957 |
318 Poly V8 |
A-Block Engines |
Fits Years:
1957
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.
