Description

Mitsubishi OEM SST Transmission Case Cover for Evo X MR (2502A042)

Firstly, Buy Mitsubishi OEM SST Transmission Case Cover Evo X MR 2502A042 online. The Mitsubishi OEM SST Transmission Case Cover Evo X MR 2502A042 is a genuine Mitsubishi factory replacement designed for the 6-speed TC-SST transmission used in the Mitsubishi Lancer Evolution X MR. This transmission case cover is an important component of the SST transmission housing and provides the correct sealing interface for the transmission case. It is an ideal replacement when the original cover is damaged, worn, or being replaced during an SST transmission repair or rebuild.

Mitsubishi part number 2502A042 is listed as COVER, M/T CASE and supersedes the earlier 2502A037 part number. STM identifies this component specifically for the 2008–2015 Mitsubishi Lancer Evolution X MR with SST transmission.

For Evo X owners who want genuine factory replacement components, this OEM case cover provides a direct solution for maintaining the original Mitsubishi transmission configuration. It is especially relevant for SST servicing, mechatronic repairs, transmission rebuilding, and restoration projects where correct fitment and sealing are important.

Mitsubishi OEM SST Transmission Case Cover Evo X MR 2502A042

The Mitsubishi OEM SST Transmission Case Cover Evo X MR 2502A042 is manufactured as a factory replacement for the Evo X MR’s SST transmission. STM lists the cover as a genuine OEM Mitsubishi component and supplies it with the associated sealing components and mounting hardware.

The cover is designed for the specialized TC-SST transmission rather than the conventional 5-speed manual transmission found in the Evo X GSR. This distinction is important when ordering transmission parts because GSR and MR drivetrain components are not interchangeable simply because they are used in the same Evo X generation.

What’s Included

The current STM listing identifies the following components as part of the 2502A042 package:

• 1 × Genuine Mitsubishi OEM transmission case cover
• Main cover gasket, installed on the cover
• 1 × O-ring, part number 2502A038
• 11 × cover bolts, part number 2502A028

The main cover gasket is installed with the cover and is not available separately according to STM. Therefore, care should be taken when handling and installing the cover to avoid damaging the gasket.

Mitsubishi technical service documentation also identifies 2502A042 as the M/T case side cover and lists the 11 attaching screws as 2502A028.

Genuine Mitsubishi OEM Construction

Choosing a genuine Mitsubishi component can be particularly valuable when rebuilding or servicing the Evo X MR SST. The 2502A042 is not a generic aftermarket transmission cover. It is a genuine Mitsubishi replacement part intended for the factory transmission application.

Mitsubishi parts catalogs identify 2502A042 as a genuine Mitsubishi COVER, M/T CASE, with 2502A037 listed as the superseded part number.

Firstly, an OEM replacement provides the correct factory part number for the application.

Secondly, the supplied cover gasket, O-ring, and mounting hardware make the package convenient for transmission service.

Thirdly, using the correct transmission case cover helps maintain the intended sealing and assembly configuration of the Evo X MR SST.

These advantages make this part suitable for owners restoring an original Evo X MR, rebuilding an SST transmission, or replacing a damaged transmission case component.

Evo X MR 6-Speed TC-SST Application

The Mitsubishi OEM SST Transmission Case Cover Evo X MR 2502A042 is intended for the 2008–2015 Mitsubishi Lancer Evolution X MR equipped with the 6-speed TC-SST transmission. STM specifically lists the part for CZ4A Evo X MR models and states that it is for the SST transmission only.

The Evo X MR’s TC-SST is a sophisticated dual-clutch transmission. It uses dedicated transmission components, fluid, hydraulic controls, clutches, and electronic control systems. Because of this design, the correct case components are important during transmission service.

This case cover should therefore not be selected simply because the vehicle is an Evo X. Always confirm that the vehicle is an MR equipped with the TC-SST before ordering.

Why Replace the Evo X MR SST Case Cover?

There are several reasons an Evo X owner or transmission specialist may need to replace the SST case cover.

A damaged cover can occur during transmission removal, disassembly, previous repairs, or an internal transmission service. Damage to the sealing surface or cover itself can compromise the transmission assembly and should be addressed before returning the vehicle to service.

The cover can also be replaced as part of a larger SST repair. Mitsubishi technical documentation lists 2502A042 as a replacement side cover during SST-related service procedures.

Replacing the cover with a genuine Mitsubishi component also provides the opportunity to use the correct associated hardware and sealing components.

Important SST Transmission Service Considerations

The Evo X MR SST requires specialized service procedures. The transmission case should be handled carefully, particularly when removing or installing the side cover.

The gasket supplied with 2502A042 comes installed on the cover. STM specifically warns that the main gasket is not available separately, so it is important not to damage it before installation.

The package also includes the 2502A038 O-ring and 11 2502A028 bolts. Mitsubishi service documentation confirms the use of the 2502A028 attaching screws with the 2502A042 side cover.

For best results, installation should follow the appropriate Mitsubishi SST service procedure. Professional transmission service is recommended if you do not have the necessary tools, equipment, and experience.

OEM Evo X MR SST Transmission Parts

The 2502A042 case cover is part of a larger group of genuine Mitsubishi Evo X MR SST components. Related parts include the 2502A028 case-cover bolts, 2502A038 O-ring, 2513A040 SST transmission filter, and other SST seals and service components.

This makes the case cover a useful component for customers performing a complete SST maintenance or rebuild project.

When rebuilding an Evo X MR transmission, it is good practice to inspect the surrounding components rather than replacing only the visibly damaged part. Depending on the repair, the transmission filter, seals, O-rings, bolts, fluid, and other components may also require replacement.

For customers searching for Mitsubishi Evo parts, using the correct OEM part number is one of the easiest ways to improve fitment accuracy.

Product Specifications

Brand: Mitsubishi
Part Number: 2502A042
Previous Part Number: 2502A037
Product Type: SST Transmission Case Cover
Catalog Description: Cover, M/T Case
Diagram Number: 21245
Vehicle: Mitsubishi Lancer Evolution X MR
Model Years: 2008–2015
Chassis: CZ4A
Transmission: 6-Speed TC-SST
Transmission Type: Twin-Clutch / Dual-Clutch
Main Gasket: Included and installed
O-Ring: 2502A038
Cover Bolts: 2502A028 × 11
Condition: New Genuine OEM Mitsubishi
Application: Evo X MR SST only

Mitsubishi OEM SST Case Cover for Evo X MR for Sale

If you are searching for an Evo X MR SST transmission case cover for sale, the genuine Mitsubishi 2502A042 is a strong choice when maintaining the factory transmission configuration is important.

Buying the correct OEM component can help avoid the fitment uncertainty associated with used or generic replacement parts. The part number also makes it easier to confirm compatibility with your existing transmission.

Before you buy online, compare the part number against your vehicle information and transmission configuration. Mitsubishi parts catalogs and STM both recommend confirming fitment carefully, especially when the vehicle has received drivetrain modifications or a replacement transmission.

Frequently Asked Questions

What is Mitsubishi part 2502A042?

Mitsubishi 2502A042 is a genuine OEM transmission case cover, cataloged as COVER, M/T CASE, for the Evo X MR SST transmission.

Does 2502A042 fit the Evo X MR?

Yes. STM lists 2502A042 for the 2008–2015 Mitsubishi Lancer Evolution X MR with SST transmission.

Is 2502A042 for the Evo X GSR?

No. This component is specifically listed for the Evo X MR SST transmission. The GSR uses a different 5-speed manual transmission.

Is 2502A042 a genuine Mitsubishi part?

Yes. Mitsubishi parts catalogs identify it as a genuine Mitsubishi part, and the part is listed as a genuine OEM Mitsubishi SST case cover.

What part number did 2502A042 replace?

Mitsubishi parts listings identify 2502A037 as the superseded part number.

Does the case cover include the gasket?

Yes. The main gasket comes installed on the cover. STM notes that this gasket is not sold separately.

Does it include the O-ring?

Yes. The package includes O-ring 2502A038.

Are the mounting bolts included?

Yes. The STM package includes 11 bolts, part number 2502A028. Mitsubishi service documentation also identifies these bolts with the 2502A042 side cover.

Can I use this cover on an Evo X GSR 5-speed?

No. The product is intended for the Evo X MR TC-SST transmission. Confirm your transmission type before ordering.

Should I replace the SST fluid when installing this cover?

If the transmission is opened for service, fluid replacement may be appropriate depending on the repair procedure and condition of the existing fluid. Mitsubishi documentation identifies DiaQueen SSTF-1 as the specified SST transmission fluid for the documented service procedure. If you’re repairing, rebuilding, or restoring the Evo X MR TC-SST and need a genuine factory replacement case cover with the correct gasket, O-ring, and mounting hardware, the Mitsubishi OEM SST Transmission Case Cover Evo X MR 2502A042 provides the correct OEM solution for the factory transmission assembly, so shop and order your genuine Mitsubishi SST case cover and other Mitsubishi Evo parts from evomotorparts.com today.