Wiseco K675M865 Forged Piston Kit Mitsubishi Bore CR - 4G63 7-Bolt 86.5mm 9.5 1

Manufacturer

Part Number

K675M865

9 reviews

Sale Price

$778.99

Estimated ship date Saturday, November 28

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Show details for Wiseco K675M865 Forged Piston Kit Mitsubishi Bore CR - 4G63 7-Bolt 86.5mm 9.5 1

Wiseco K675M865 Forged Piston Kit Mitsubishi Bore CR - 4G63 7-Bolt 86.5mm 9.5 1 — image 1

Product Details

The Wiseco K675M865 is a Professional Series forged piston kit engineered for the Mitsubishi 4G63 7-bolt engine platform. Featuring an 86.5mm (+0.060" oversize) bore and a 9.5:1 compression ratio with a -4cc flat-top dish, this kit is purpose-built for turbocharged DSM and Evo applications running a standard 88mm stroke crankshaft with 156mm long connecting rods.

Designed for heavy to severe duty race builds, Wiseco's Professional Series pistons are forged and machined in-house in Mentor, Ohio from 2618 aluminum alloy — chosen for its superior tensile strength and resilience under high heat and boost pressure. Each piston features Wiseco's proprietary ArmorGlide® skirt coating for reduced friction, quieter operation, and improved scuff resistance during break-in.

Key Specifications:

Bore: 86.5mm (3.405 in.) — +0.060" oversize
Compression Ratio: 9.5:1
Dish Volume: -4cc flat-top
Stroke: 88mm (3.465 in.)
Rod Length: 156mm (6.142 in.)
Compression Height: 28.70mm (1.130 in.)
Pin Diameter: 22mm (0.866 in.)

Key Features:

ArmorGlide® skirt coating — seizure-resistant, friction-reducing, quieter operation
2618 aluminum forging — improved tensile strength for boosted and high-RPM use
Valve pocket designs allow use of oversized valves and high-lift camshafts
Optimized skirt profile minimizes piston rock, extending service life in stroker applications
Includes rings, wrist pins, and locks
Machined on CNC equipment to tight tolerances

The K675M865 is also compatible with 100mm stroker crankshaft applications using a stock 150mm connecting rod. This kit is ideal for serious engine builders looking to maximize displacement and durability in the iconic 4G63 platform.

Products specifications

Piston Quantity

Wrist Pin Style

Floating

Make

Mitsubishi

Piston Material

2618

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Bore Diameter

86.50

Industry

Automotive

Product Market

Sport Compact

Engine Type

ICE

Engine

4G63

Oil Ring Thickness

Wrist Pin Material

5115

Product Series

Professional

Product Type

Engine Piston Set

Wrist Pin Outer Diameter

0.8661

Forging Type

FLAT

Out of Stock Message

Estimated Shipped Date 3-4 Weeks

Second Compression Ring Thickness

1.2

Top Compression Ring Thickness

EBAY Category ID

33623

Engine - Web

4G63

Make - Web

Mitsubishi

Ring Set Included

Yes

Skirt Coating

Yes

Wrist Pin Included

Yes

Title

Wiseco - Mitsubishi, 4G63, 86.50 mm Bore, Piston Set of 4

Compression Height

28.70

Piston Volume

-4.00

Title - Web

Professional Mitsubishi 4G63 Piston Set of 4 - 86.50 mm Bore - 28.70 mm CH, -4.00 CC

Very quick shipping and smooth transaction. Quality parts

Yuriy V

Appreciate the easy process.

Brian S

great service

Raul P

It was easy & straight forward. The items where nicely shipped & overall amazing. I'm definitely ordering again.

Miguel D

easy to order and exactly what i needed when everyone else was out of stock.

William W

Good easy to use site

Kobe C

Second time using this site for parts and they do a solid job all around!

Robert D

awesome and fast shipping! will see you again when i need parts asap! Thank you-

colton a

My order came quicker than expected and fit perfect

Garret B

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