Wiseco Ring Set-3.950inch Bore 5/64 x 5/64 x 3/16inch Ring Shelf Stock

Wiseco 4-stroke piston ring sets are made specifically to Wiseco's specifications to provide ultimate performance and sealing with Wiseco's wide variety of 4-stroke pistons. From compression and sealing to oil control, rings can make or break piston performance, which is why Wiseco rings are developed and tested for race-ready performance.

Product Overview

We have a few choices when it comes to choosing a piston pin. 5115 Material pins are chromium alloy and steel case hardened to 58-64 Rockwell C designed for normal wear and tear. 52100 Material Pins are high carbon chromium-bearing steel made of aircraft quality alloy and case hardened to 54-56 Rockwell C for high load capacity. 9310 Material Pins are high quality low carbon and are case hardened to 59-63 Rockwell C for turbo or nitrous applications.

*5115 Material Pin*
• Standard grade chromium alloy steel
• Case hardened to 58-64 Rockwell C
• Ground to a surface finish of .15 Ra or better
• Designed to withstand the normal wear and tear of an aftermarket engine

*52100 Material Pin*
• High carbon, chromium-bearing steel
• Aircraft quality alloy
• Case hardened to 54-56 Rockwell C
• Through hardened
• Ground to a fine finish
• Designed for high load capacity
• Designed for outstanding wear and abrasion resistance

*9310 Material Pin*
• High quality, low carbon, case hardened steel
• Case hardened to 59-63 Rockwell C
• Ground to a superfinish (.025 Ra or better)
• Designed for use in applications which require high surface strength combined with high core toughness
• Excellent to use in applications where high contact stress is combined with high shock and impact loading, such as turbo / nitrous applications

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Reference Information

Piston Rings, Plasma-moly, 3.950 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, Single Piston, Set

Wiseco's Pro Tru Hastings piston ring sets are race-quality. They feature high-tensile plasma pre-gapped rings, and the sets are designed as replacement rings for your Pro Tru pistons.