Namura .040 Over Bore Piston Kit for Arctic Cat 375 & 400 Utility 2002-2008 83mm

Namura .040 Over Bore Piston Kit for Arctic Cat

This .040 over bore piston kit is designed for Arctic Cat 375 and 400 Utility models from 2002 to 2008, restoring engine compression and power after cylinder wear.

Overview

This Namura .040 Over Bore Piston Kit is the ideal solution for your Arctic Cat 375 and 400 Utility. The Namura .040 Over Bore Piston Kit features an 83mm bore and .040 over sizing to compensate for cylinder wear. It delivers restored compression and reliable power for your utility ATV.

Built For Performance

• Precision-cast piston for consistent expansion and durability
• .040 over bore sizing accommodates worn cylinders
• 83mm bore diameter matches factory specifications
• Includes piston rings for complete top-end rebuild
• High-strength alloy resists thermal and mechanical stress

Fits These Machines

• for Arctic Cat 375 Utility 2002-2008
• for Arctic Cat 400 Utility 2002-2008

On-The-Job Use

• Restoring engine performance in utility ATVs used for hauling and plowing
• Trail riding and recreational utility vehicle use
• Engine rebuilds after high-mileage wear
• Upgrading to oversize pistons during cylinder boring

Specs At A Glance

Good To Know

Q: Is a cylinder hone required when installing this piston kit? A: Yes, the cylinder should be honed to the correct finish and clearance for the .040 over piston to ensure proper ring seating and longevity.

Q: Can this piston be used with stock connecting rods? A: Yes, the kit is designed for use with standard connecting rods, but always check rod condition and clearance before installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.