ACL race rod bearings for NA/NB

High-quality ACL race rod bearings for 1990-05 Miata engines. They'll take a huge amount of abuse and are viewed as one of the industry standards.

Available in stock or 0.25mm (0.010") oversize for machined cranks. It's always best to check the size you need rather than make assumptions.  

Included in our engine rebuild kits.

Crank measurements in mm in and inches:

• Stock = 44.940-44.956 / 1.7693-1.7699
• .25 / .01 = 44.690-44.706 / 1.7595-1.7600

Please note that we can't accept returns on bearings that have been removed from the plastic wrap.