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King Engine Bearings MB5304AM0.25 Main Bearing Set for Mazda ZM - B6 B6-T B3 B5

(1994-1997, 1999-2005 Mazda Miata; 1990-2000 Mazda Protege; 1986-1995 Mazda 323; 1995-1996 Mazda MX-3; 2001-2005 Kia Rio; 1991-1996 Ford Escort + 2 more models)

Part of: King Engine Bearings Main Bearing Set Oversize

Other options in this family: King Engine Bearings MB5835SI0.5 King Engine Bearings MB5557SI0.75 King Engine Bearings MB4102SI0.25 King Engine Bearings MB5280SI0.5 King Engine Bearings MB5770SI0.25

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB5304AM0.25
14 reviews
Sale Price

$21.73

2 left at this price

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Usually delivered within 2 days

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Product Details

The King Engine Bearings MB5304AM0.25 is a precision-engineered main bearing set designed specifically for Mazda B6, B6-T, ZM, B3, and B5 engines. This oversize bearing set features a +0.25mm (0.010") crankshaft journal size for engines that have been machined or require oversized bearings for proper clearance restoration.

Key Features:

  • Bi-metal aluminum construction meeting SAE-783 standards
  • Aluminum-based bearing material optimized for low to medium load applications
  • Oversize dimension: +0.25mm (+0.010") for machined crankshafts
  • Complete main bearing set for full engine rebuild coverage
  • Precision manufacturing for proper oil clearance and engine longevity
  • OE-equivalent quality for reliable engine performance

King Engine Bearings are manufactured to strict tolerances, ensuring consistent bearing crush, proper oil clearance, and optimal load distribution across the crankshaft. The aluminum-based bi-metal construction provides excellent conformability and embeddability characteristics, making these bearings ideal for street performance and daily driving applications in Mazda four-cylinder engines.

Products specifications

Fits

1994-1997, 1999-2005 Mazda Miata; 1990-2000 Mazda Protege; 1986-1995 Mazda 323; 1995-1996 Mazda MX-3; 2001-2005 Kia Rio; 1991-1996 Ford Escort; 1991-1994 Mercury Capri; 1991-1996 Mercury Tracer

Undersize

0.25

Material

bimetal (aluminum base)

Application

OE Replacement

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Title

King Bearings

Fast and easy

Easy to find stuff and great prices.

insufficient info presented. Before confirming payment needed to make sure part fit proper side. Info not provided had to call in waited ten minutes. Also when choosing paypal payment it wouldn't transfer. had to log off twice before final completion.

Very happy with my purchase. SUPER fast shipping and great communication. Will use again!

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Autoplicity had the best price on the VP fuel jugs, I ask if the could ship them out quickly and they did.

Very easy to shop, hopefully everything goes smoothly!

Awesome csr best price will buy from again...

Best price found quick shipping couldn't be easier will buy again.

So far, so good.

Good so far. Easy registration and login. Nice line of products.

I enjoyed the quick and simple the checkout process

Wow super fast shipping and I ordered over a holiday weekend. Will be doing business with this site again soon.

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