SEALED POWER 580M Nos Bearing Set 173 L6

( Brand: Sealed Power ), ( Type: Crankshaft Main Bearing Set ), ( Items Included: Crankshaft Main Bearing, Crankshaft Flanged Main Bearing ), ( Manufacturer Part Number: 580M ), ( Material: Aluminum ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review SEALED POWER 173 L6 Nos Main Bearing Set Discontinued fits NASH AMBASSADOR RAMBLER 1941–1952

Introducing a premium bearing set specifically designed for the Power 580M engine used in Nash Ambassador and Rambler models from the years 1941 to 1952 with a 173 L6 engine configuration. This set of bearings is manufactured to the highest standards, ensuring a perfect fit and exceptional performance.

The Power 580M bearing set includes all the necessary components to keep your engine running smoothly. It comprises six bearings in total: three crankshaft bearings, two main bearings, and one connecting rod bearing. Each bearing is crafted from top-grade materials that provide superior strength, durability, and resistance to wear.

The crankshaft bearings are designed to support the heavy loads transferred from the crankshaft to the engine block. They feature a precision-machined surface to ensure a tight fit and minimize friction, while their robust design allows them to withstand the extreme pressures generated by the engine.

The main bearings are responsible for supporting the piston assembly and reducing friction between the piston and the engine block. The bearings in this set are made from high-quality steel and feature an optimized design to ensure a snug fit, even wear, and excellent load-carrying capacity.

The connecting rod bearing supports the connection between the piston and the crankshaft, and it undergoes significant stress due to the reciprocating motion of the piston. This bearing set includes a high-performance rod bearing that can handle the extreme loads and pressures, while its precision-machined surface ensures a tight fit and minimizes friction.

These bearings are supplied as new old stock (NOS), meaning they have been professionally stored and have not been previously installed or used. By choosing a new old stock bearing set, you can enjoy the peace of mind that comes with knowing you're installing genuine, original equipment that meets or exceeds the original specifications.

The Power 580M bearing set is a must-have for any Nash Ambassador or Rambler owner looking to maintain or restore their vintage vehicle. By upgrading to these high-quality bearings, you'll not only ensure the continued reliability and longevity of your engine but also improve its overall performance and power output.

In summary, this Power 580M bearing set for Nash Ambassador and Rambler models (1941-1952) is a carefully crafted collection of six premium bearings designed to deliver superior strength, durability, and performance for your vintage engine. With its precise fit, excellent load-carrying capacity, and robust design, this set is an essential upgrade for any dedicated enthusiast or restorer.

A Detailed Analysis of Buying a (Power 580M 1941-1952 Nash Ambassador Rambler 173 L6 NOS Bearing Set)

This analysis aims to provide a comprehensive review of the decision to buy a new (Power 580M 1941-1952 Nash Ambassador Rambler 173 L6 NOS Bearing Set). We will discuss the potential benefits and drawbacks, ending with a conclusion and recommendation.

1. Authenticity: New Old Stock (NOS) bearings ensure that your vehicle maintains its originality and value.

2. Quality: NOS bearings are often considered to be of higher quality due to their preservation and untouched condition.

3. Functionality: Replacing worn-out bearings with new ones can significantly improve the performance and longevity of your vehicle.

4. Availability: NOS bearings offer a reliable source for parts that may be difficult to find otherwise.

1. Cost: NOS bearings can be more expensive than aftermarket or rebuilt bearings due to their scarcity.

2. Compatibility: Ensure the bearings are compatible with your specific make, model, and year of the Nash Ambassador Rambler.

3. Storage: Properly storing the bearings until installation is crucial to prevent damage or contamination.

The decision to buy a (Power 580M 1941-1952 Nash Ambassador Rambler 173 L6 NOS Bearing Set) depends on your priorities as a car owner. If preserving the originality, quality, and performance of your vehicle is your top priority, then the benefits of NOS bearings may outweigh the costs. However, if cost is a significant concern, or you are not particularly attached to the idea of using NOS parts, then aftermarket or rebuilt bearings may be a more cost-effective alternative.

For those who prioritize originality and quality, a (Power 580M 1941-1952 Nash Ambassador Rambler 173 L6 NOS Bearing Set) is a worthwhile investment. However, for those seeking a more cost-effective solution, aftermarket or rebuilt bearings may be a better fit. Always double-check the compatibility of the bearings with your specific vehicle before making a purchase.

Details:

I found a listing for them in my 1948 Federal Mogul catalog, but the engine was used through 1952. NOS Sealed Power STANDARD main bearings for Nash / Rambler AMC 173 L6 engines. These are long discontinued from Sealed Power/Federal Mogul. The 580M kit was the only one that used 1148SB, and you can see even Sealed Power using older inventory to create these kits in 1960s or 1970s.

The others are Sealed and I didn't want to disturb them. I was able to open two of the re-culpable boxes for a photo, bearings are in perfect condition.

part #: 580m prices

• $17.73-$150.00

specifications engibearing:

• for models: Nash, Ambassador, Rambler
• for years: 1941-1952
• brand: Sealed Power
• type: Crankshaft Main Bearing Set
• items included: Crankshaft Main Bearing, Crankshaft Flanged Main Bearing
• manufacturer part number: 580M
• material: Aluminum
• vintage part: Yes
• country of origin: United States

seller engibearing:

• rating: 100.0%
• city: Hillsboro, Oregon
• # reviews: 1686

shipping engibearing:

• carrier: USPS
• class: Standard, Expedited
• cost: $15.25
• type: Calculated
• transit: 4-9 Days
• service: USPS Ground Advantage, USPS Priority Mail, USPS Priority Mail Medium Flat Rate Box

payments engibearing:

• other
• wallet: Apple-pay
• credit card: Discover

offer engibearing:

• quantity: 1
• sold: 0
• options: Ship-to-home
• best offers: True
• availability: In Stock
• started: January 31, 2026

general engibearing:

• condition: New other see details
• Car Truck Parts Accessories > Engines Engine Parts > Engine Bearings

returns engibearing:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

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