ACL 5M2975H-STD HP Main Bearing Set for 1991-2002 Nissan 240SX/NX/Sentra

Vehicle Fitment

• 1991-2002 Nissan 240SX (SR20DE/SR20DET, 2.0L I4)
• 1991-2002 Nissan NX (SR20DE/SR20DET, 2.0L I4)
• 1991-2002 Nissan Sentra (SR20DE/SR20DET, 2.0L I4)
• 1991-2002 Infiniti G20 (SR20DE, 2.0L I4)

Fitment confirmed through 2002. 2003+ coverage unconfirmed at time of listing.

Features

• CT-1 dry film coating reduces friction and extends bearing life
• Tri-metal Race Series design withstands high RPM and heavy loads
• Standard (STD) size for direct OE replacement fit
• Optimized for turbocharged and naturally aspirated SR20 engines
• Precision wall thickness ensures consistent oil film clearance
• Suitable for both street performance and motorsport builds
• Engineered for high durability under extreme operating conditions
• Trusted by professional race engine builders worldwide

Specifications

• Application: Nissan 240SX, NX, Sentra & Infiniti G20 SR20DE/SR20DET 2.0L I4
• Width: ≈ 0.752 in (19.1 mm)
• Outside Diameter: ≈ 2.3216 in
• Shaft Diameter: ≈ 2.1646 in
• Maximum Wall Thickness: ≈ 0.0778 in
• Size: Standard (STD)
• Coating: ACL CT-1 high-performance dry film

Included Components

• 1x complete ACL Race Series main bearing set for SR20 block

Product Description

The ACL 5M2975H-STD HP main bearing set is specifically engineered for Nissan and Infiniti SR20DE and SR20DET 2.0L engines across multiple platforms, including the 1991-2002 Nissan 240SX, NX, Sentra, and Infiniti G20. Featuring ACL's CT-1 dry film coating and tri-metal Race Series construction, these bearings offer superior load capacity, reduced wear, and consistent lubrication under demanding conditions.

Designed as a direct OE-size replacement, this standard-size bearing set ensures precise clearances without machining, making it ideal for rebuilds, upgrades, or performance applications. Whether you're restoring an SR20-powered street car or preparing a turbocharged race build, ACL bearings are trusted for reliability and durability. Fitment confirmed through 2002; newer applications remain unverified.