ACL High Performance main bearing set for the Nissan KA24DE inline-4, machined with extra oil clearance for improved oil flow and cooling under higher-RPM or higher-load use. Fits the 240SX, Altima, Axxess, D21, Frontier, Pickup, Stanza, and Xterra. Standard Size fits a factory, unmachined crankshaft journal.
Specifications:
- Type: Main Bearing Set
- Series: High Performance (Extra Oil Clearance)
- Size: Standard
- Engine Fitment: Nissan KA24DE Inline-4
- Vehicle Platform: 240SX, Altima, Axxess, D21, Frontier, Pickup, Stanza, Xterra
- Part Number: 5M2747HX-STD
FAQ
What's different about this bearing set vs. the standard High Performance version?
This version is machined with extra oil clearance, allowing more oil flow for improved cooling and lubrication under higher-RPM or higher-load use.
What vehicles use this bearing set?
The KA24DE was used in the Nissan 240SX, Altima, Axxess, D21, Frontier, Pickup, Stanza, and Xterra.
Do I need a machined crankshaft for this set?
No, Standard Size fits a factory, unmachined crankshaft journal.
Is extra oil clearance recommended for daily driving?
Extra oil clearance sets are typically chosen for higher-performance or higher-RPM applications; check ACL's clearance specs against your build's oil pump and bearing requirements.

