Description

Genuine OEM Mitsubishi Crankshaft for 2003–2006 Mitsubishi Lancer Evolution 8 & 9

Firstly, The Mitsubishi OEM Crankshaft Evo 8 9 MD357543 is a genuine Mitsubishi replacement crankshaft designed for the 4G63 engine used in the 2003–2006 Mitsubishi Lancer Evolution VIII and Evolution IX. This is the same OEM-style crankshaft supplied for the factory Evolution 8 and 9 engine platform, making it an excellent choice for an engine rebuild, restoration, or replacement.

The crankshaft is one of the most important components inside the 4G63. It converts the pistons’ reciprocating movement into rotational motion. That rotation ultimately drives the drivetrain and allows the turbocharged 4G63 to produce power.

When rebuilding an Evo 8 or Evo 9 engine, using the correct Mitsubishi crankshaft is essential. The MD357543 provides a factory replacement option for owners who want to maintain the original 4G63 engine configuration.

Mitsubishi OEM Crankshaft Evo 8 9 MD357543

The Mitsubishi OEM Crankshaft Evo 8 9 MD357543 is listed as a genuine OEM Mitsubishi component. Current Evo parts suppliers identify MD357543 specifically for the 2003–2006 Mitsubishi Evolution VIII and IX.

This crankshaft is designed around the factory 4G63 engine application. It is therefore well suited to an OEM-focused rebuild or a replacement where maintaining the original engine configuration is important.

The product is supplied as one OEM crankshaft.

Genuine Mitsubishi 4G63 Crankshaft

The Evolution VIII and IX use the legendary turbocharged Mitsubishi 4G63 engine. A properly prepared crankshaft provides the foundation for the engine’s rotating assembly.

A crankshaft replacement may become necessary after bearing damage, excessive wear, machining issues, or a major engine failure. It can also be installed during a complete engine rebuild when the original crankshaft is outside the required specifications.

Firstly, the genuine Mitsubishi design provides the correct OEM application for the Evo 8 and Evo 9 4G63.

Secondly, the MD357543 part number makes it easier to identify the correct factory crankshaft when ordering replacement engine components.

Thirdly, installing a correct OEM crankshaft allows the rest of the rotating assembly to be built around the intended factory component.

2003–2006 Mitsubishi Evolution 8 & 9 Fitment

The MD357543 crankshaft is listed for:

• 2003 Mitsubishi Lancer Evolution VIII
• 2004 Mitsubishi Lancer Evolution VIII
• 2005 Mitsubishi Lancer Evolution VIII
• 2006 Mitsubishi Lancer Evolution IX
• Mitsubishi Evolution VIII
• Mitsubishi Evolution IX
• CT9A chassis
• 4G63 turbocharged engine

STM’s OEM engine catalog identifies MD357543 as the genuine Mitsubishi crankshaft for the 2003–2006 Evolution VIII and IX. MAPerformance and GUMOTORSPORT provide the same 2003–2006 Evo 8/9 application.

This makes MD357543 a useful reference when searching for a genuine replacement crankshaft for an Evo 8 or Evo 9 engine build.

Why Replace an Evo 8 or Evo 9 Crankshaft?

The crankshaft is exposed to substantial loads throughout the engine’s operating range. Over time, wear or damage can affect the crankshaft journals and other critical surfaces.

Common reasons for replacing the crankshaft include:

• 4G63 engine rebuilding
• Main or rod bearing damage
• Crankshaft journal wear
• Engine failure
• Excessive crankshaft runout
• Damage discovered during machining
• Restoration of a high-mileage engine
• Replacement of a damaged factory crankshaft
• Building a replacement OEM-spec rotating assembly

Before installing any crankshaft, the component should be inspected and measured by a qualified engine builder. Journal condition, dimensions, runout, bearing clearances, and other specifications should be checked against the appropriate Mitsubishi service specifications.

A crankshaft should never be installed simply because it appears visually clean.

OEM Replacement for the 4G63

One of the biggest advantages of the MD357543 is its factory application. This is not an aftermarket stroker crankshaft or racing crankshaft. It is marketed as a genuine OEM Mitsubishi replacement crankshaft for the Evolution 8 and 9.

That distinction matters when building an OEM-style 4G63.

Aftermarket crankshafts are available for Evo applications, including forged 4340 steel and billet options. Those products are intended for different engine-building goals. The MD357543, however, is the appropriate choice when the goal is to maintain a genuine Mitsubishi configuration.

Evo 8 & Evo 9 Engine Rebuild Applications

The crankshaft can be used as part of a larger 4G63 engine rebuild. During assembly, the crankshaft works together with the connecting rods, pistons, main bearings, rod bearings, oil pump, timing components, and other internal engine parts.

It is important to inspect all related components before assembly.

For example, worn main bearings can affect crankshaft journal surfaces. Incorrect bearing clearances can also create lubrication problems. A professional machine shop should inspect the crankshaft and block together before final assembly.

If the engine has experienced a serious failure, inspect the entire lubrication system as well. Metal debris can travel through the engine oil system and damage replacement components.

Related Mitsubishi 4G63 Components

A crankshaft replacement is often part of a larger engine project. Other OEM components are available for the Evo 8 and Evo 9 4G63 platform.

Related components include:

• Main bearings
• Connecting-rod bearings
• Pistons
• Connecting rods
• Crankshaft key
• Crankshaft sprocket
• Timing components
• Oil pump/front case
• Rear main seal
• Front crankshaft seal
• Crankshaft pulley
• Timing belt
• Balance-shaft components

For example, Mitsubishi OEM catalogs list MD008959 as the 4G63 crankshaft key and MD326852 as a crankshaft timing sprocket used on the Evo 8/9 platform.

When rebuilding an engine, always confirm each component’s part number and application rather than assuming that every 4G63 component is interchangeable.

Crankshaft Inspection Before Installation

Even when purchasing a new OEM crankshaft, the engine builder should verify the complete rotating assembly before final assembly.

The engine block should be checked for correct main-bore condition. The crankshaft should be inspected for journal dimensions and runout. Main-bearing clearances should also be measured during assembly.

The correct engine-building procedure is particularly important for a turbocharged 4G63. The Evo 8 and Evo 9 are performance-oriented applications, so proper assembly tolerances are essential.

Professional machine-shop inspection is recommended for any major 4G63 rebuild.

Buy Mitsubishi Evo 8 & 9 Crankshaft Online

If you are searching for a Mitsubishi Evo 8 crankshaft, Evo 9 crankshaft, or genuine 4G63 crankshaft for sale, the MD357543 is a factory OEM option specifically listed for the 2003–2006 Evolution VIII and IX.

The genuine Mitsubishi component is ideal for owners restoring a factory-style engine, replacing a damaged crankshaft, or rebuilding a 4G63 with OEM Mitsubishi parts.

When you buy online, verify your vehicle’s year, model, engine, and existing crankshaft part number before ordering. This is especially important for modified Evo builds, engine swaps, and imported vehicles.

At evomotorparts.com, you can shop genuine Mitsubishi Evo engine parts and other OEM components for Evolution 8, Evolution 9, and additional Mitsubishi Evolution platforms.

Frequently Asked Questions

What is the OEM crankshaft part number for the Evo 8 and Evo 9?

The genuine Mitsubishi OEM crankshaft for the 2003–2006 Evolution VIII and IX is MD357543.

Does MD357543 fit the 4G63?

Yes. MD357543 is listed as the OEM Mitsubishi crankshaft for the Evolution VIII and IX 4G63 engine platform.

What years does this crankshaft fit?

The MD357543 is listed for 2003–2006 Mitsubishi Lancer Evolution VIII and IX models.

Is MD357543 a genuine Mitsubishi crankshaft?

Yes. Current Evo parts suppliers identify MD357543 as a genuine OEM Mitsubishi crankshaft.

Is this an aftermarket forged crankshaft?

No. MD357543 is a genuine Mitsubishi OEM crankshaft. It is different from aftermarket forged or billet crankshafts designed for high-power or stroker applications.

Does the crankshaft come with bearings?

No. The product is listed as one OEM crankshaft. Main and connecting-rod bearings are separate engine components and should be selected according to the crankshaft and block measurements.

Should the crankshaft be measured before engine assembly?

Yes. A qualified engine builder should inspect the crankshaft, block, journals, runout, and bearing clearances before final assembly. Following the correct Mitsubishi service specifications is important. If you’re rebuilding a 4G63, replacing a damaged crankshaft, restoring an Evolution VIII or IX, or assembling an OEM-focused engine, the Genuine OEM Mitsubishi Crankshaft MD357543 provides the correct factory replacement for the 2003–2006 Mitsubishi Lancer Evolution 8 and 9, so shop and order your genuine Mitsubishi crankshaft and other Mitsubishi Evo parts from evomotorparts.com today.