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Wiseco Ring Set-3.940inch Bore 5/64 x 5/64 x 3/16inch Ring Shelf Stock

SKU: WIS3940VK

Piston Rings

WIS Piston Rings...

Wiseco Ring Set-3.940inch Bore 5/64 x 5/64 x 3/16inch Ring Shelf Stock

SKU: WIS3940VK

Piston Rings

WIS Piston Rings...

A$50.56
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

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

Product Details

Description:High Performance Piston Rings; Replacement/Individual Ring Set; Fits ONE Piston
Part Number:wis3940VK

Part Type

Piston Rings

Data: v4.2 - Upd: 2026-10-13 17:02:58

Specifications

Product Attributes - Brand
Wiseco
Product Attributes - Manufacturer's Part Number
3940VK
Product Attributes - Part Type
Piston Rings
Product Attributes - Product Line
Wiseco Pro Tru Hastings Piston Ring Sets
Product Attributes - UPC
193564180674
Product Attributes - Bore (in.)
3.940 in.
Product Attributes - Bore (mm)
100.076mm
Product Attributes - File Fit
No
Product Attributes - Gapless
No
Product Attributes - Gas Ported
No
Product Attributes - Top Ring Included
Yes
Product Attributes - Top Ring Thickness
5/64 in.
Product Attributes - Top Ring Material
Ductile iron
Product Attributes - Top Ring Facing Material
Plasma-moly
Product Attributes - Second Ring Included
Yes
Product Attributes - Second Ring Thickness
5/64 in.
Product Attributes - Second Ring Material
Cast iron
Product Attributes - Second Ring Facing Material
Cast iron
Product Attributes - Oil Ring Included
Yes
Product Attributes - Oil Ring Thickness
3/16 in.
Product Attributes - Oil Ring Tension
Standard
Product Attributes - Oil Ring Material
Stainless steel
Product Attributes - Quantity
Sold as 1 set.
Product Attributes - Notes
Single cylinder only.

Reference Information

Brand Name/s Wiseco
StreetFX SKU wis3940VK
SFX Item ID 4062750
Supplier Item Code 4062750
Manufacturer SKU 3940VK
Manufacturer UPC 193564180674
Alternative References Set-3.940inch, 3/16inch

Compatibility

Application Data
  • UniversalYes
    Engine TypeH12
  • UniversalYes
    Engine TypeH2
  • UniversalYes
    Engine TypeH4
  • UniversalYes
    Engine TypeH6
  • UniversalYes
    Engine TypeL1
  • UniversalYes
    Engine TypeL2
  • UniversalYes
    Engine TypeL3
  • UniversalYes
    Engine TypeL4
  • UniversalYes
    Engine TypeL5
  • UniversalYes
    Engine TypeL6
  • UniversalYes
    Engine TypeL8
  • UniversalYes
    Engine TypeV10
  • UniversalYes
    Engine TypeV12
  • UniversalYes
    Engine TypeV2
  • UniversalYes
    Engine TypeV4
  • UniversalYes
    Engine TypeV6
    Application NotesMopar 3.9 L V6 using forged Pro Tru flat top pistons.
  • UniversalYes
    Engine TypeV6
  • UniversalYes
    Engine TypeV8
    Application NotesMopar 318 cubic inch using forged Pro Tru flat top pistons.
  • UniversalYes
    Engine TypeV8
  • UniversalYes
    Engine TypeW12
  • UniversalYes
    Engine TypeW16
  • UniversalYes
    Engine TypeW8

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