Wiseco Automotive RING (1 SET FOR 1 PSTN) Ring Shelf Stock
Wiseco Automotive RING (1 SET FOR 1 PSTN) Ring Shelf Stock
Description
Wiseco Automotive RING (1 SET FOR 1 PSTN) 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
Wiseco Pro Tru line of pistons utilize a plasma moly âââ¬Ã
âpre-gappedâââ¬Ã ring set for the budget minded consumer. Wiseco Sport compact kits include the high quality NPR XX rings, which are the best quality steel nitrided top rings and napier style 2nd rings. Our late model EFI lineup and several small block Chevy pistons are designed around the our 1.2mm Steel Nitride and napier GFX ring sets. Many of our big block sets utilize a .043 back cut top ring for extra material thickness around the intake valve.
*Unless Noted - Rings Sold Individually - Order Specific Quantity Needed*
| Additional Application Notes | |
|---|---|
| • w/ Windsor 331, 347 & 363 Stroker | |
| • w/ Windsor 331, 347 & 363 Stroker w/ 351 Windsor Motor | |
| • w/ 351 Windsor Motor | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:43:49
Features
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.
(keyword: ring)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.
Specifications
Product Details
| 2nd Ring: | 1/16 Cast |
| Bore: | 4.125 |
| Description: | High Performance Piston Rings; Replacement/Individual Ring Set; Fits ONE Piston |
| Oil Ring: | 3/16 3-Piece Std Tension |
| Part Number: | wis4125H |
| Size: | .062-.062-.187 |
| Top Ring: | 1/16 Hi-Tensile Plasma |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Wiseco, WISECO-PRO TRU |
| StreetFX SKU | wis4125H |
| SFX Item ID | 4062772 |
| Accounting SKU | wis-4125H |
| Manufacturer SKU | 4125H |
| Manufacturer UPC | 00193564181497 |
| Alternative References | WIS-4125H |
Piston Rings, Plasma-moly, 4.125 in. Bore, 1/16 in., 1/16 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.
| Product Attributes | |
|---|---|
| Brand | Wiseco |
| Manufacturer's Part Number | 4125H |
| Part Type | Piston Rings |
| Product Line | Wiseco Pro Tru Hastings Piston Ring Sets |
| UPC | 193564181497 |
| Bore (in.) | 4.125 in. |
| Bore (mm) | 104.775mm |
| File Fit | No |
| Gapless | No |
| Gas Ported | No |
| Top Ring Included | Yes |
| Top Ring Thickness | 1/16 in. |
| Top Ring Material | Iron |
| Top Ring Facing Material | Plasma-moly |
| Second Ring Included | Yes |
| Second Ring Thickness | 1/16 in. |
| Second Ring Material | Cast iron |
| Second Ring Facing Material | Cast iron |
| Oil Ring Included | Yes |
| Oil Ring Thickness | 3/16 in. |
| Oil Ring Tension | Standard |
| Oil Ring Material | Stainless steel |
| Quantity | Sold as 1 set. |
| Notes | Single piston set. |
Compatibility
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