This ACL .25mm Oversized High Performance Main Bearing Set fits the Nissan/Infiniti VG30DETT 3.0L V6 engine, used across a wide range of Nissan and Infiniti models including the 300ZX, Maxima, Pathfinder, Frontier, Xterra, Quest, and the Infiniti J30/M30/QX4. The .25mm oversize designation means these bearings are sized for a main journal machined .25mm over stock.
Specifications:
- Type: Main Bearing Set
- Series: High Performance
- Size: .25mm Oversized
- Engine Fitment: Nissan/Infiniti VG30DETT (3.0L V6)
- Part Number: 4M2737H-.25
FAQ
What does ".25mm Oversized" mean for a main bearing set?
It means the bearing is sized for a crankshaft main journal that's been machined .25mm over stock, typically during a crank regrind.
What vehicles use the VG30DETT engine?
A wide range of Nissan and Infiniti vehicles, including the 300ZX, Maxima, Pathfinder, Frontier, Xterra, and Quest, plus the Infiniti J30, M30, and QX4.
Does this include rod bearings?
No, this is a main bearing set only, it supports the crankshaft's main journals. Rod bearings are sold separately.
How many main bearings are in a set for this V6?
A complete main bearing set for a V6 typically includes bearing shells for all main journals plus thrust washers where applicable.

