Description
This Pro-H connecting rod configuration is listed for Subaru EJ18/EJ20/EJ22/EJ257 (WRX STI) under SKU CRLSCR8593-4. Its listed specification is Pro-H Heavy-Duty 3/8 in WMC Bolt.
When planning an EJ-series assembly, compare the intended crankshaft stroke, piston compression height, and pin size with the rod dimensions. The standard and heavy-duty listings should be compared by exact part number, not just their shared engine names.
Pro-H identifies Carrillo's H-beam design family. Carrillo describes a steel-rod manufacturing process based on forgings, dimensional inspection, and shot peening. The relevant purchasing distinction remains this rod's specific geometry and fastener configuration.
The listed WMC fasteners belong to Carrillo's H11 tool-steel bolt family. Bolt size and grade are part of the assembly specification; use the instructions for the actual supplied bolts rather than transferring a torque figure from another rod.
Product Specifications
- Listed application: Subaru EJ18/EJ20/EJ22/EJ257 (WRX STI)
- Listed configuration: Pro-H Heavy-Duty 3/8 in WMC Bolt
- Listed series: Pro-H
- Listed fasteners: 3/8 in WMC Bolt
- SKU: CRLSCR8593-4
- Manufacturer catalog rod center distance: 130.5 mm
- Manufacturer catalog pin diameter: 23 mm
Fitment and Assembly
Check bearing fit, rod side clearance, and clearance to the block, crankshaft, and pistons during mock-up. Use the supplied specification card and the exact bolt installation instructions for final assembly. Confirm the sale quantity and package contents against this SKU before ordering; engine cylinder count has not been treated as package quantity.