Engine Rod Bearings Set Fits 03-22 Toyota 4Runner FJ 4.0L 24V 1GR-FE
The specifications for the Toyota 1GR-FE (4.0L V6) engine bearings demand extremely tight machining tolerances. These critical parameters—covering clearances, thicknesses, and fastener torque—are essential for ensuring proper oil flow and engine durability.
Description
Main Bearing Specifications
Journal diameter: 71.988 – 72.000 mm (2.8342 – 2.8346 in)
Standard oil clearance: 0.005 – 0.011 mm (0.0002 – 0.0004 in)
Main bearing cap width: Toyota uses two width specifications for main bearings. The width at positions 1 and 4 is 22.4 mm (0.882 in), while the width at positions 2 and 3 is 19.0 mm (0.748 in).
Main bearing cap bolt torque:
Step 1: 61 N·m (45 ft-lb)
Step 2: Tighten the bolts an additional 90 degrees.
Connecting Rod Bearing Specifications
Crankpin (connecting rod journal) diameter: 55.992 – 56.000 mm (2.2044 – 2.2047 in)
Standard oil clearance: 0.015 – 0.030 mm (0.0006 – 0.0012 in)
Standard bearing thickness: 1.487 mm (0.0585 in)
Connecting rod bearing bolt torque: Step 1: 25 N·m (18 ft-lb)
Step 2: Tighten bolts an additional 90°
Standard axial clearance (thrust clearance): 0.15 – 0.30 mm (0.0059 – 0.0118 in) (Maximum limit: 0.35 mm)
















