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Genuine HKS piston kit. Manufacturer part number - 2103-RM006.
FITMENT AND SPECIFICATIONS
| Vehicle | Engine | Type | Displacement (mm) | Size | Boring・Honing modification | Full flow modification | Compression Ratio | Code No. | Remarks |
|---|---|---|---|---|---|---|---|---|---|
| LANCER EVOLUTION I | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.6 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION II | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.6 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION III | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.6 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION IV | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.8 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION IX | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.6[Lancer EVOI・II・III]/GK t=1.2 ε=8.8[Lancer EVO IV~VIII MR] | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION V | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.8 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION Ⅵ | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.8 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION VII | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.8 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION VIII | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.8 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
| LANCER EVOLUTION VIII MR | 4G63 | Forging Piston Kit | 2021 | φ85.5 - φ22 | Required | Required | GK t=1.2 ε=8.8 | 2103-RM006 | Make to order item Nickel Plating, Molybdenum Coating |
Match the engine, chassis, transmission and all application restrictions before ordering.
PURCHASED PARTS PACKAGE
One HKS piston kit under part number 2103-RM006. See the application table for the supplied specification and separately required parts. This is a piston kit, not a complete stroker kit.
INSTALLATION AND OPTIONS
Professional installation and the manufacturer application instructions are required. The image is a manufacturer product-family illustration. The supplied components and dimensions follow the part number and table above.

HKS 85.5mm Forged Piston Kit for Mitsubishi Evo IV-IX 4G63 - 2103-RM006

