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King Engine Bearings MB7720AM0.75 Main Bearing Set BMW M20 M50 M52 Bi-Metal Aluminum

(BMW 328i 1996-2000, X3 2007-10, Z4 2006-10, Z3 1997-2000, 325i 1987-97, 2006-10, 528i 1996-2000, 320i 1992-95, 525i 1989-95, 2008-09 + 13 more models)

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB7720AM0.75
13 reviews
Sale Price

$126.63

Estimated ship date Saturday, December 05

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Product Details

The King Engine Bearings MB7720AM0.75 is a 0.75mm undersize main bearing set engineered for BMW inline-six engines, including the M20B20, M20B25/27, M50B20/25, and M52B20/25/28 engine families. King Engine Bearings is a globally recognized OEM and aftermarket supplier known for precision-engineered bearings used in performance, racing, and everyday driving applications.

Key Features:

  • Bi-Metal Aluminum Construction: Made from standard aluminum-based bi-metal material equivalent to SAE-783, designed for low to medium load engine applications
  • 0.75mm Undersize: Intended for use with reground crankshafts machined to 0.75mm under standard journal dimensions
  • Precision Tolerances: Manufactured to tight dimensional tolerances for consistent oil film thickness and reliable crank support
  • OEM-Grade Quality: King bearings are trusted by engine builders and OEM manufacturers worldwide for consistent performance and longevity
  • Fitment: Compatible with BMW M20B20, M20B25, M20B27, M50B20, M50B25, M52B20, M52B25, and M52B28 engines

These main bearings are an ideal choice for engine rebuilders performing crankshaft grinding on BMW six-cylinder engines, providing a reliable and cost-effective solution that meets or exceeds OEM specifications.

Products specifications

Fits

BMW 328i 1996-2000, X3 2007-10, Z4 2006-10, Z3 1997-2000, 325i 1987-97, 2006-10, 528i 1996-2000, 320i 1992-95, 525i 1989-95, 2008-09, 323i 1997-2001, 325is 1987-95, 325e 1984-87, 323Ci 2000, 528e 1982-88, 325iX 1988-91, 328is 1996-99 + 6 more models

Flange Oversize

FL O/S 0.6 mm

Undersize

0.75

Material

bimetal (aluminum base)

Shaft UnderSize

0.75mm

Housing Diameter

65.02 / 65.00 mm || 2.560 / 2.559 inch

STD Max Thickness

2.494

STD Shaft Diameter

59.99 / 59.97 mm || 2.362 / 2.361 inch

so far so good

Very competitive prices and fast FREE shipping! Will do business with Autoplicity again!

Unbeatable prices...

easy to find and purchase the item i was looking for

Easy

Super fast shipping and great price..

Excellent business. This is my second purchase and there will be more! I ordered my parts over the holiday weekend and they mailed them the Tuesday after Labor Day. The absolute BEST pricing you will get. You will not find a lower price else ware. The shipping doesn't even take forever like most places you get great pricing. Communication is excellent, the site is very easy to use and navigate. I will be doing business with Autoplicity.com many more times and highly recommend them.

i ordered on a weekend so there was an unexpected one day delay on the shipping, website did not update the shipping when i called shipping did not answer but emailing got a quick response and an appology, i ordered on a sunday 3/4/12 recived my hella supertone horns today 3/12 i kind of wished they put some bubble wrap or something inside the box that they shipped in tho. i installed them already and they work like a dream

Great service

Good

Great

I hope your an accredited company. Seems to good to be true.

So far so good

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