1. Engine Bearings Parts
  2. sku: 12892533564187603
  3. FEDERAL MOGUL 485M20

FEDERAL MOGUL 485M20 Nos Engine Flathead Bearings 218 228 251 265 L6

fits make: Chrysler, Dodge. year: 1939–1968.

485m20 Federal Mogul Nos 1939-1968 Chrysler Dodge 218 228 251 265 L6 Engine Flathead Main Bearings

( Brand: Federal Mogul ), ( Type: Crankshaft Main Bearing Set ), ( Oe/oem Part Number: Inline 6 L Head Flathead Crank Dodge Chrysler Desoto, 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60, 61 62 63 64 65 66 67 68 218 228 237 251 265, 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951, 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 ), ( Items Included: Crankshaft Flanged Main Bearing, Crankshaft Main Bearing ), ( Manufacturer Part Number: 485M20 ), ( Vintage Part: Yes ), ( Universal Fitment: No ), ( Country Of Origin: United States )

Review FEDERAL MOGUL Nos Chrysler Dodge 218 228 251 265 L6 Engine Flathead Main Bearings fits 1939–1968

Introducing the Federal-Mogul 485M20 flathead bearings, an essential component for Chrysler and Dodge engines manufactured between 1939 and 1968. These bearings are specifically designed for L6 engines, powering vehicles with engines that carried the iconic monikers 218, 228, 251, and 265.

The Federal-Mogul 485M20 bearings are engineered to deliver superior performance and reliability, ensuring a smooth and efficient operation of your engine. Each bearing is meticulously crafted from premium materials, including a precisely balanced steel backing plate, and a high-quality, heat-treated steel shaft. The shaft is designed to minimize friction and wear, while the backing plate provides the necessary strength and support to the bearing.

These bearings boast an innovative design, featuring an integral oil groove that facilitates the proper lubrication of the bearing. The oil groove ensures that the bearing remains well-lubricated, even under the most demanding driving conditions, thereby reducing the risk of wear and tear, and increasing the overall lifespan of the engine.

The Federal-Mogul 485M20 flathead bearings undergo rigorous testing to ensure they meet the highest standards of quality and durability. Each bearing is carefully inspected for dimensional accuracy, surface finish, and other critical parameters to ensure they meet the exacting specifications of your engine.

To ensure a perfect fit, these bearings are manufactured with precision tolerances, making them an ideal replacement option for your vintage Chrysler or Dodge engine. The Federal-Mogul 485M20 bearings are engineered to provide a direct fit, minimizing any potential complications during installation.

In summary, the Federal-Mogul 485M20 flathead bearings offer an unparalleled combination of performance, reliability, and ease of installation. They are the perfect solution for anyone seeking to keep their classic Chrysler or Dodge engine running at its best, while preserving its original character and charm.

Pros and Cons of Buying Federal-Mogul 485M20 Flathead Bearings for Chrysler Dodge L6 Engines (1939-1968)

1. **Pros:**

a. **Authenticity:** Federal-Mogul is a well-known and reputable manufacturer in the automotive industry. These bearings are original equipment manufacturer (OEM) replacements, ensuring a perfect fit and reliable performance.

b. **Durability:** These bearings are designed to last long and withstand the rigors of use in a L6 engine. They are made from high-quality materials, ensuring that they can handle the heavy loads and high temperatures.

c. **Reduced Engine Noise:** Replacing worn-out bearings with new ones can significantly reduce engine noise. The bearings help to keep the engine's moving parts running smoothly, reducing the metal-on-metal contact that causes noise.

d. **Improved Engine Performance:** Worn-out bearings can cause engine performance issues, such as rough idling and loss of power. New bearings can help to restore the engine's performance to its original specifications.

2. **Cons:**

a. **Cost:** Original equipment manufacturer (OEM) bearings can be more expensive than aftermarket alternatives. However, the higher cost is justified by their superior quality and reliability.

b. **Installation:** Installation of these bearings can be a complex and time-consuming process. It is recommended that the work is done by a professional mechanic to ensure that the engine is not damaged during the installation process.

c. **Availability:** These bearings may not be readily available at local auto parts stores. They may need to be ordered online or from a specialty auto parts supplier, which can add to the time and cost of the repair.

3. **Conclusion:**

The decision to buy Federal-Mogul 485M20 flathead bearings for Chrysler Dodge L6 engines (1939-1968) depends on various factors, including the engine's condition, availability of the parts, and the cost. However, considering the benefits of using high-quality OEM bearings, such as improved engine performance, reduced noise, and durability, it is generally recommended to invest in these parts for long-term engine health.

4. **Recommendation:**

If you own a Chrysler Dodge L6 engine (1939-1968) and are experiencing engine performance issues or excessive noise, it is recommended that you consider replacing the bearings with new Federal-Mogul 485M20 bearings. While they may be more expensive than aftermarket alternatives, their superior quality and reliability make them a worthwhile investment for maintaining the long-term health of your engine. It is also recommended that you have the installation done by a professional mechanic to ensure that the work is done correctly and efficiently.

Details:

Will need minor cleaning before use. The other 3 are from my 1978 Federal Mogul Engine Bearings Catalog, and Arline number 7 also. This is a long discontinued main bearing set, Looks really nice, normal shelf dust, etc. Federal Mogul 485M20 0.020 over main bearing set for under crankshafts.

specifications engibearing:

  • for makes: Chrysler, Dodge
  • for years: 1939-1968
  • brand: Federal Mogul
  • type: Crankshaft Main Bearing Set
  • oe/oem part number: Inline 6 L Head Flathead Crank Dodge Chrysler Desoto, 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60, 61 62 63 64 65 66 67 68 218 228 237 251 265, 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951, 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964
  • items included: Crankshaft Flanged Main Bearing, Crankshaft Main Bearing
  • manufacturer part number: 485M20
  • vintage part: Yes
  • universal fitment: No
  • country of origin: United States

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general engibearing:

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

offer engibearing:

  • quantity: 1
  • started: February 20, 2026
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  • availability: In Stock
for makes: chrysler, dodge, for years: 1939-1968, type: crankshaft main bearing set, oe/oem part number: inline 6 l head flathead crank dodge chrysler desoto, 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60, 61 62 63 64 65 66 67 68 218 228 237 251 265, 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951, 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964, items included: crankshaft flanged main bearing, crankshaft main bearing, vintage part: yes, universal fitment: no, country of origin: united states,
category: auto parts > car truck parts accessories > engines engine parts > engine bearings, sku: 12892533564187603,

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