Main Bearings

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201 products

ACL Main Bearing Set for Hyundai G6DA/DB/DC/DH (Lambda), 3.3/3.5/3.8L V6 (incl. turbo), Genesis, Size STD
ACL Main Bearing Set for Hyundai G6DA/DB/DC/DH (Lambda), 3.3/3.5/3.8L V6 (incl. turbo), Genesis, Size 0.025
ACL Main Bearing Set for Hyundai G6DA/DB/DC/DH (Lambda), 3.3/3.5/3.8L V6 (incl. turbo), Genesis, Size 0.25
ACL Main Bearing Set for Audi 1.6, 1.8 (incl. turbo), 2.0, A3, A4, A6, TT, 80, 90, 100 (1983-2001), Size STD HX
ACL Main Bearing Set for Toyota 1AZ-FE, 2AZ-FE, 2AZ-FXE, 2.0, 2.4 4-cylinder, Size 0.025
ACL Main Bearing Set for BMW M20B20/B25/B27, M50B20, M50B25, M50B27, M52B20, M52B25, M52B28, M54B25, Size STD HX
ACL Main Bearing Set for Audi 1.6, 1.8 (incl. turbo), 2.0, A3, A4, A6, TT, 80, 90, 100 (1983-2001), Size 0.25
ACL Main Bearing Set for Toyota 2GR-FE, 3.5 V6 (Lotus Evora, Exige), Size STD HX
ACL Main Bearing Set for Hyundai G4KF 2.0T (Theta II), 2.0 4-cylinder turbo (from 2010), Size 0.025
ACL Main Bearing Set for BMW M20B20/B25/B27, M50B20, M50B25, M50B27, M52B20, M52B25, M52B28, M54B25, Size 0.50
ACL Main Bearing Set for Nissan VG20E/VG20ET/VG20DET, 2.0L V6, Size STD
ACL Thrust Washer Set for Honda D16A, D16B, D16W, D16Y, D16Z, 1590 cc 4-cylinder, Size STD
ACL Main Bearing Set for Toyota 1JZGE/1JZGTE 2492 cc, 2JZGE/2JZGTE 3.0 6-cylinder, Size 0.025
ACL Main Bearing Set for Toyota 1AZ-FE, 2AZ-FE, 2AZ-FXE, 2.0, 2.4 4-cylinder, Size STD HX
ACL Main Bearing Set for Toyota 1AZ-FE, 2AZ-FE, 2AZ-FXE, 2.0, 2.4 4-cylinder, Size 0.25
ACL Main Bearing Set for Toyota 1UZFE/2UZFE/3UZFE, 4.0/4.6/4.3 V8, Size STD HX
ACL Main Bearing Set for Toyota 1UZFE/2UZFE/3UZFE, 4.0/4.6/4.3 V8, Size 0.50
ACL Main Bearing Set for Toyota 2ZZ-GE, 1.8 4-cylinder (Lotus Elise, Exige), Size STD HX
ACL Main Bearing Set for Toyota 1AZ-FE, 2AZ-FE, 2AZ-FXE, 2.0, 2.4 4-cylinder, Size STD
ACL Main Bearing Set for Toyota 1UZFE/2UZFE/3UZFE, 4.0/4.6/4.3 V8, Size 0.25
ACL Main Bearing Set for Toyota 2GR-FE, 3.5 V6 (Lotus Evora, Exige), Size 0.025
ACL Main Bearing Set for Toyota 1UZFE/2UZFE/3UZFE, 4.0/4.6/4.3 V8, Size 0.025
ACL Main Bearing Set for Toyota 2GR-FE, 3.5 V6 (Lotus Evora, Exige), Size 0.25
ACL Main Bearing Set for Subaru EJ18/EJ20/EJ22/EJ25, EJ20T/EJ20TT/EJ22T 1.8/2.0/2.2/2.6, Size 0.025
ACL Main Bearing Set for Toyota 2ZZ-GE, 1.8 4-cylinder (Lotus Elise, Exige), Size STD
ACL Main Bearing Set for Toyota 2GR-FE, 3.5 V6 (Lotus Evora, Exige), Size STD
ACL Main Bearing Set for Toyota 2ZZ-GE, 1.8 4-cylinder (Lotus Elise, Exige), Size 0.25
ACL Main Bearing Set for Toyota 2ZZ-GE, 1.8 4-cylinder (Lotus Elise, Exige), Size 0.025
ACL Main Bearing Set for Nissan RB26DETT, 2.6L 6-cylinder, Size STD HX
ACL Main Bearing Set for Subaru EJ18/EJ20/EJ22/EJ25, EJ20T/EJ20TT/EJ22T, 1.8/2.0/2.2/2.6, Size 0.50
ACL Main Bearing Set for Nissan RB26DETT, 2.6L 6-cylinder, Size 0.50
ACL Main Bearing Set for Subaru FA20/FB20-25 and Toyota 4U-GSE, Size STD
ACL Main Bearing Set for Nissan RB20E, RB20S (SOHC), 2.0L 6-cylinder, Size 0.50
ACL Main Bearing Set for Nissan RB20E, RB20S (SOHC), 2.0L 6-cylinder, Size 0.025
ACL Main Bearing Set for Peugeot TU3.2/TU3J2/TU5JP/TU5JP4, 1360 cc/1587 cc 4-cylinder, Size 0.50
ACL Main Bearing Set for Nissan RB26DETT, 2.6L 6-cylinder, Size 0.025

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Buying guide and details

Main bearings hold the crankshaft in the engine block, on an oil film. The set is chosen by engine code and by journal size: STD for a factory crankshaft, 0.25 or 0.50 after regrinding.

How to read the size

  • STD: journals at the factory size.
  • STD HX: journals at the factory size, with 0.025 mm more oil clearance than the STD set. It is not an upgrade: the clearance is set by the journal and the bore.
  • 0.025, 0.25, 0.50: journals ground that much under the factory size.

Before you order

  • Choose the size from the journal measurement made by the shop that machined the crankshaft.
  • ACL sets are sold sealed by the manufacturer: check the part number and the size before you open the set.
  • The rod bearings for the same engine are in rod bearings. Crankshaft thrust washers are here too.