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90-05 Mazda Miata ACL Bearings

ACL is an engine builders top choice for their quality and consistency. Buy with confidence; you will find ACL in many cars on road as they are an Original Equipment supplier. Many racers, especially import racers, swear by both their stock and performance series crankshaft rod and main bearings. ACL premium bearings will not only hold up better and longer than OEM, but the special coating process will also help prevent premature engine bearing failures and expensive engine damage.

ACL Race series performance bearings are for extreme endurance under harsh conditions. Plan on running high RPMs and big boost? Fatigue, stress wear, and failure are factors you won't have to worry about when you are running ACL's top of the line metallurgy.

ACL Duraglide series bearings are a tri-metal design that provide a combination of high strength and the ability to withstand harsh / demanding operating conditions above casual driving. This makes them ideal for performance engines and rebuilds.


  • Please Note When Ordering Bearings:
  • Engine bearings require proper tolerance to be measured before purchase. If you are not sure what size bearings your build requires, please consult a professional engine builder. We are not responsible for incorrectly ordered bearings and can not take returns or provide exchanges on any engine internal components.
ACL Thrust Washers

ACL thrust washers are an often overlooked component of rebuilds. They prevent the crankshaft from moving around, thus keeping it in line with all of the other critical moving engine parts. It also helps the crankshaft to better stand up to stresses from clutch and flywheel operation.


  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
Standard Thrust Washers 1T8353-STD $5.00 $3.80 8 available
ACL Rod Bearing Sets

When doing rods and pistons, it's a good idea to replace the rod bearings as well. Proper support via main bearings is crucial to prevent oscillations and wear that can damage the crankshaft and other components if the motor should move out of balance. ACL's high quality rod bearings will prevent fatigue, failure, and reduce drivetrain stress through their durable and strong design.


  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
B6/BP/BP-T Race Series Rod Bearing Set (Standard) 4B8351H-STD $67.90 $51.60 12 available
B6/BP/BP-T Race Series Rod Bearing Set (+.25mm Over) 4B8351H-.25 $67.90 $51.60 3 available
B6/BP/BP-T Race Series Rod Bearing Set (+.50mm Over) 4B8351H-.50 $67.90 $51.60 Out of stock: Call for ETA
ACL Main Bearing Sets

ACL's main bearings are made of a softer metal so that you don't wear out your crank or engine block. Additionally, a thin layer of oil lubricates the connection between the bearings and the crank allowing the crank to "float" and reduce wear. Proper support via main bearings is crucial to prevent oscillations and wear that can damage the crankshaft and other components as the motor moves further out of balance.

Bearings with extra oil clearance will absorb the stress of higher horsepower motors greater, but will see increased wear during start up. We recommend these be purchased by experienced professionals only.


  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
B6/BP/BP-T Race Series Main Bearing Set (Standard) 5M8353H-STD $108.70 $82.61 9 available
B6/BP/BP-T Race Series Main Bearing Set (+.25mm Over) 5M8353H-.25 $108.70 $82.61 1 available
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1635 Bustleton Pike, Suite B, Feasterville, PA 19053
Tel: 215.489.2820
Hours:
Mon-Fri 8am-6pm

©2016 JSC Speed Inc.
All Rights Reserved.

1635 Bustleton Pike,
Suite B
Feasterville, PA
19053

Tel: 215.489.2820