The ACL 6B2639H-.025 is a high performance connecting rod bearing set for the Nissan/Infiniti VQ35HR and VQ37VHR V6 engines, machined 0.025mm oversized to fit a crankshaft reground 0.025mm below stock rod journal diameter.
Specifications:
- Type: Connecting Rod Bearing Set
- Size: 0.025mm Oversized
- Engine Fitment: Nissan/Infiniti VQ35HR/VQ37VHR V6 DOHC 4V
- Vehicle Platform: Nissan 350Z/370Z; Infiniti G35/G37, M35/M37, Q40/Q50/Q60/Q70, EX35/EX37, FX35/FX37, QX50/QX70 (model years vary by application)
- Part Number: 6B2639H-.025
FAQ
What does "0.025mm Oversized" mean on this rod bearing set?
It means the bearing shells are machined 0.025mm thicker to fit a rod journal that has been reground 0.025mm below stock diameter.
Which engines does the 6B2639H-.025 fit?
It fits the naturally aspirated Nissan/Infiniti VQ35HR and VQ37VHR V6 engines.
Which vehicles use this rod bearing set?
It covers vehicles built on the VQ35HR/VQ37VHR platform, including the Nissan 350Z and 370Z, and Infiniti G35/G37, M35/M37, Q50/Q60/Q70, EX35/EX37, FX35/FX37, and QX50/QX70.
Is this bearing set for a turbocharged engine?
No. The VQ35HR/VQ37VHR engines used in these vehicles are naturally aspirated V6s.

