ACL main bearings VAG 1.8T/2.0 TFSI STD

ACL Race main bearings for VAG 1.8T 20V, 2.0 TFSI EA113 and selected VAG 1.6, 1.8 and 2.0 16V/20V 4-cylinder engines with standard crankshaft. ACL Race Series is developed for high-load engines and is commonly used for tuning, motorsport and performance engine rebuilds, where greater demands are placed on the bearings than during a standard engine rebuild.

ACL Race Series main bearings are manufactured from high-strength F780 trimetal material and developed to withstand high loads, high engine speeds and increased cylinder pressure. The bearings feature an optimised bearing design, improved heat transfer and advanced oil distribution, helping to maintain a stable oil film under demanding conditions. The extended oil grooves also contribute to more efficient lubrication of the engine's moving components.

Improvements in material, dynamic wall thickness, heat transfer, oil grooves and oil distribution are some of the characteristics that have made ACL Race Series a popular choice among engine builders worldwide. Correct oil clearance and precise installation are essential for optimal service life and reliability.

Specifications:
Type: ACL Race main bearings
Material: Trimetal copper/lead alloy (F780) with steel backing and overlay
Crankshaft: Standard size (STD)
Oil clearance: 0.018–0.073 millimetres
Bearing type: Upper and lower main bearings
Contents: 10 bearing halves (5 complete main bearings) consisting of 6 x 1648H* and 4 x 1644H bearing halves
ACL part number: 5M1644H-STD

*1648H bearing halves are used in position 4 as both upper and lower main bearings.

Maximum overall length: 18.49 millimetres
Maximum shaft size: 53.978 millimetres
Maximum housing bore size: 59.019 millimetres
Maximum vertical oil clearance: 0.073 millimetres
Maximum wall at crown: 2.502 millimetres
Minimum shaft size: 53.958 millimetres
Minimum housing bore size: 59.000 millimetres
Minimum vertical oil clearance: 0.018 millimetres

Fits engine codes:
3A / 4B / 6A / AAD / AAE / ABB / ABK / ABM / ABT / ACE / ADA / ADP / ADR / ADW / AEB / AFY / AJL / APT / ARG / CR / CY / DR / DS / DT / DZ / EP / FS / JF / JK / JN / JU / JV / JW / NE / NP / PH / PM / PP / PV / RN / RS / RU / SD / SF / SH / WT / WV / XW / XX / YJ / YK / YM / YN / YP / YS / YT / YV / YY / YZ / ZB / ZC / ZV / 1F / 1P / 1Z / 2E / 2H / 9A / AAC / AAM / AAZ / ABF / ABL / ABN / ABS / ACC / ADD / ADF / ADY / ADZ / AEK / AEP / AFT / AGG / AGR / AHH / AHU / AJH / AKR / AKS / ALE / ALH / ANN / ANP / ATU / DX / EV / EW / EX / EZ / EZA / GU / GX / GZ / HM / HN / HT / HV / JH / KR / KT / PB / PF / PG / PL / PN / RE / RF / RG / RH / RL / RP / RV