Connecting Rod Bearing Selection

WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.

Each connecting rod falls into one of four tolerance ranges (from 0 to 0.024 mm (0.0009 in.), 0.006 mm (0.0002 in.) increments) depending on the size of its big end bore.

It's then stamped with a number or bar (1, 2, 3, or 4/I, II, III or IIII) indicating the range. You may find any combination of 1, 2, 3, or 4/I, II, III, or MM in any engine.

Big End Bore Size: 58.0 mm (2.283 in)

Inspect the connecting rod for cracks and heat damage.

Big End Bore Code Locations

Numbers or bars have been stamped on the side of each connecting rod as a code for the size of the big end. Use them, and the letters or bars stamped on the crank (codes for rod journal size) to choose the correct bearings. If the codes are indecipherable because of an accumulation of dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.

Fig 1: Identifying Connecting Rod Journal Code Locations

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Identifying Bearing Color Code Table

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Connecting Red Journal Code Locations (Letters or Bars)

Fig 3: Identifying Connecting Rod Journal Code Location

Courtesy of AMERICAN HONDA MOTOR CO., INC.