Wiseco Subaru WRX EJ20 STROKER 1.181CH Piston Shelf Stock Kit

SKU: WISK579M925

Pistons

WIS Piston Sets - 4 Cyl

Wiseco

Wiseco Subaru WRX EJ20 STROKER 1.181CH Piston Shelf Stock Kit

SKU: WISK579M925

Pistons

WIS Piston Sets - 4 Cyl

LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.

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Description

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco's Professional Series.

Application Summary

Subaru EJ20 2.0L 16V

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-10-10 18:29:48

Features

ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
Designed and built to withstand heavy to severe duty performance applications
Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
Forced pin oiling
Fully machined crown features
Precision ring grooves, anti-detonation groove, and additional ring seal improving features

Specifications

Product Attributes - Brand: Wiseco
Product Attributes - Manufacturer's Part Number: K579M925
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: Wiseco Sport Compact Piston and Ring Kits
Product Attributes - UPC: 00193564075949
Product Attributes - Piston Rings Included: Yes
Product Attributes - Bore (in.): 3.642 in.
Product Attributes - Bore (mm): 92.500mm
Product Attributes - Stroke: 3.110 in.
Product Attributes - Rod Length: 5.177 in.
Product Attributes - Piston Style: Dish, with no valve reliefs
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Compression Height (in.): 1.181 in.
Product Attributes - Piston Head Volume (cc): +17.80cc
Product Attributes - Wrist Pin Style: Press-fit or floating
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Wrist Pin Included: Yes
Product Attributes - Pin Diameter (in.): 0.906 in.
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Top Ring Thickness: 1.2mm
Product Attributes - Top Ring Material: Steel
Product Attributes - Top Ring Facing Material: Gas nitrided
Product Attributes - Second Ring Thickness: 1.2mm
Product Attributes - Second Ring Material: Cast iron
Product Attributes - Second Ring Facing Material: Phosphate coated
Product Attributes - Oil Ring Thickness: 2.8mm
Product Attributes - Oil Ring Material: Stainless steel
Product Attributes - Oil Ring Tension: Standard
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold as a set of 4.
Product Attributes - Notes: Tab style oil ring.

Reference Information

Brand Name/s	Wiseco
StreetFX SKU	wisK579M925
SFX Item ID	4063160
Supplier Item Code	4063160
Manufacturer SKU	K579M925
Manufacturer UPC	193564075949
Alternative References	EJ20, 1.181CH