SQR372 Piston Kit + Connecting Rod for Joyner Trooper / Chery 800cc

The SQR372 is an 812cc three-cylinder gasoline engine commonly used in the Chery QQ, as well as various UTVs (Utility Task Vehicles) and small ATVs (such as the Joyner Trooper).

Description

Piston and piston assembly specifications: Cylinder bore: 72 mm;
Stroke: 66.5 mm;
Piston material: Aluminum alloy;
Piston ring configuration: 1.2 mm × 1.2 mm × 2.5 mm;
Piston pin weight: 67 g;
Piston pin material: 15Cr or 20Cr steel;
Pin diameter: 18 mm.

Connecting rod specifications—Length: 117.5 ± 0.035 mm (center-to-center distance);
Material: 40Cr or 35CrMn steel;
Small-end bore diameter: 18 mm;
Big-end bore diameter (journal diameter): 40 mm;
Connecting rod weight: 365 g to 383 g;
Bolt torque specification: 40 ± 2 N·m.