ACL 4B1584H-STD Race Series Standard Size Connecting Rod Bearing Set for BMW N20B20 and N26B20 2.0L Engines

ACL BMW N20B20 / N26B20 2.0L Inline Race Series Standard Size Conrod Rod Bearing Set

The ACL 4B1584H-STD Race Series connecting rod bearing set is engineered for BMW N20B20 and N26B20 2.0L inline engines. Designed for performance-focused engine builds, this standard-size rod bearing set supports reliable crankshaft-to-connecting-rod operation under demanding street, track, and competition conditions.

ACL Race Series bearings are manufactured with performance-oriented materials and construction to promote strength, durability, and consistent load distribution. The set is intended for applications using standard crankshaft journal dimensions, making accurate crankshaft inspection and clearance measurement essential before installation. Always compare the original bearing specifications and confirm the required clearances for the specific engine build.

Designed as a direct replacement-style component, the ACL 4B1584H-STD bearing set is suitable for select BMW applications, including the 2015–2017 BMW M3, 2015–2020 BMW M4, and 2020 BMW M2 listed below. Fitment may vary by engine configuration, model year, and crankshaft specifications. Professional installation is recommended, with all mating surfaces cleaned and assembly performed according to the engine manufacturer’s service procedures.

Brief Description: Standard-size ACL Race Series connecting rod bearing set for compatible BMW N20B20 and N26B20 2.0L inline engines.

Key Product Specifications & Technical Data:

• Brand: ACL
• Part Number: 4B1584H-STD
• Product Type: Connecting rod bearing set
• Series: Race Series
• Engine Family: BMW N20B20 and N26B20
• Engine Configuration: 2.0L inline engine
• Bearing Size: Standard
• Application: Automotive performance and replacement use

What's Included: One ACL 4B1584H-STD standard-size Race Series connecting rod bearing set.

Fitment: Fits select 2015 BMW M3, 2015–2020 BMW M4, 2016–2017 BMW M3, and 2020 BMW M2 applications. Verify the vehicle, engine code, crankshaft journal condition, and required bearing clearance before ordering.

Features:

• Standard Size: Designed for compatible crankshafts using standard connecting rod journal dimensions.
• Race Series Construction: Built for demanding performance, street, track, and competition engine applications.
• Engine Compatibility: Developed for select BMW N20B20 and N26B20 2.0L inline engines.
• Consistent Bearing Support: Promotes dependable load distribution and durable operation when correctly installed and clearance-matched.

Fitments:
2015 BMW M3 Base
2015 BMW M4 Base
2016 BMW M3 Base
2016 BMW M4 Base
2016 BMW M4 GTS
2017 BMW M3 Base
2017 BMW M4 Base
2018 BMW M3 Base
2018 BMW M4 Base
2019 BMW M2 Competition
2019 BMW M4 Base
2019 BMW M4 CS
2020 BMW M2 Competition
2020 BMW M2 CS
2020 BMW M4 Base
2020 BMW M4 CS
2021 BMW M2 Competition

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1