Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 8.5:1 Dish Piston Set with Rings

SKU: MAN612002C-4

Pistons

MAN Piston Sets - 4 Cyl...

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 8.5:1 Dish Piston Set with Rings

SKU: MAN612002C-4

Pistons

MAN Piston Sets - 4 Cyl...

A$1,397.70
LAST ONE! Est Ship 3-5 days. In stock at 2 locations (3 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Piston Set

Our signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.

Part Type

Engine Piston Set

Product Overview

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. Round wire locks, tool steel wrist pins, and rings are included with every set at no additional charge.

*Forging*
• 2618 alloy for maximum high temperature strength and fatigue resistance.

*Attributes*
• "Contour forgings" provide the optimum balance between strength and weight with no grain-interrupting internal milling.
• Proprietary multi-step top ring groove machining process assures optimum control of the groove's size, geometry, flatness, and finish.
• All final turning is performed in one fixturing resulting in complete squareness of rings to the cylinder wall.
• Federal Form-Scan gauging validates ideal skirt indexing to pinhole and skirt-to-skirt polarity.
• Value - added features such as a pressure balance groove included in all series.
• Precise pinhole machining results in an exact compression distance as well as precise lock ring groove spacing, size, and concentricity.

Manley Sport Compact Platinum series pistons come complete with pistons, rings, pins, and locks


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:24:44

Data: v4.2 - Upd: 2026-11-09 03:34:55

Features

  • 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance.
  • Cam and Barrel Profiles: Our pistons boast cam and barrel (skirt) profiles that generate substantial power while being gentle on cylinder walls.
  • Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff/DLC alloys, providing additional durability.
  • Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and more power.
  • Unique Fixturing: Manley's unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring ultimate ring groove to skirt squareness.

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: piston)

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

Bore Diameter:99.75
Bore Oversize:+0.25
Bore:99.75mm (+.25mm)
Comp Distance:1.209"
Comp Ratio:8.5:1
Compression Height:1.209
Compression Ratio:8.50:1
Cylinder Head:51cc
Description:Platinum Series Lightweight Pistons; Set of 4; Includes Ringset Part # 46997-4
Dome Volume:-22cc
Engine Stroke Type:Stock
Engine Stroke:79.00
Engine Type:ICE
Engine:2.5L EJ257 WRX STi
Make:Subaru
Part Number:man612002C-4
Piston Head Type:Dish
Piston Quantity:4
Piston Series:Platinum Series
Piston Type:Dish
Piston Volume:-22.00
Product Type:Engine Piston Kit
Rod Length:5.141"mm
Stroke:79mm
Title:Manley Piston Set, PIST-SUBARU 99.75mm/1.209 CD/DDISH
Weight:398

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Manley Performance, Manley
StreetFX SKU man612002C-4
SFX Item ID 4059853
Accounting SKU man-612002C-4
Manufacturer SKU 612002C-4
Manufacturer UPC 807298026589
Alternative References 612002C-4, MAN-612002C-4

PIST-SUBARU 99.75mm/1.209 CD/DIS

Product Attributes
BrandManley
Manufacturer's Part Number612002C-4
Part TypePistons
UPC807298026589

Compatibility

Loading compatibility information...

Keep shopping

More from Manley Performance