Description

Mitsubishi OEM Axle Nut Castle Style for 2008–2010 Evo X (3885A009)

Firstly, Buy Evo X OEM Castle Style Axle Nut 3885A009 online for 2008–2010 models. The Mitsubishi OEM Axle Nut Castle Style for 2008–2010 Evo X (3885A009) is a genuine Mitsubishi replacement axle nut designed for the factory axle and wheel-bearing assemblies on applicable Mitsubishi Lancer Evolution X models. This castle-style nut provides the correct OEM-style method of securing the axle to the hub assembly while working with the corresponding lock washer and cotter pin.

Mitsubishi Evo X axle hardware changed during the production run, making it important to verify the axle nut style on the vehicle before ordering. Evo-specific parts suppliers identify 3885A009 as the castle-style axle nut for the applicable 2008–2010 Evolution X configuration. The nut is used on both front and rear axle positions and is designed to be installed with a 32 mm socket.

This listing is for one genuine Mitsubishi axle nut. The matching lock washer and cotter pin are separate components unless purchased as a complete axle nut kit.

Genuine Mitsubishi Evo X 3885A009 Axle Nut

The axle nut is an important piece of hardware within the Evo X hub and axle assembly. It secures the axle in the wheel hub while allowing the factory locking arrangement to maintain the correct installation.

Firstly, the genuine Mitsubishi 3885A009 provides an OEM replacement for a damaged, worn or missing castle-style axle nut.

Secondly, its castle design works with the corresponding cotter-pin locking system used by the applicable Evo X axle configuration.

Thirdly, replacing damaged axle hardware during hub, bearing or axle service helps ensure the assembly can be correctly secured according to the applicable factory procedure.

For Evo owners maintaining an original drivetrain and suspension setup, using the correct Mitsubishi axle hardware can also simplify restoration and maintenance work.

2008–2010 Evo X Castle Style Axle Nut

The 3885A009 is specifically associated with the castle-style axle arrangement used on applicable early Evo X models. Specialist Evo parts catalogs identify the part as fitting 2008–2010 Evolution X models, with both front and rear axle applications listed.

The castle-style design features slots around the outer portion of the nut. These slots allow the cotter pin to pass through the corresponding axle hardware and lock the nut in position.

Because Evo X axle hardware varies by model year and axle configuration, owners should visually inspect their existing nut before ordering. Specialist suppliers specifically recommend confirming the axle-nut design because different Evo X production periods can use different nut styles.

3885A009 vs. MB515403

One of the most important fitment details is the difference between the castle-style and solid-style axle nuts.

Part Number	Style	Evo X Application
3885A009	Castle style	Applicable 2008–2010 Evo X
MB515403	Solid style	Applicable later Evo X axle configuration

The MB515403 is listed as the solid-style replacement axle nut for 2011–2015 Evo X applications by Evo-specific suppliers, while 3885A009 is identified as the castle-style nut for 2008–2010 models.

However, production changes and individual vehicle configurations can create exceptions, so checking the existing hardware or confirming the part number by VIN is recommended before ordering.

Front and Rear Axle Applications

The 3885A009 castle-style axle nut is listed for both front and rear axle positions on applicable Evo X applications. This makes it useful for a variety of drivetrain and wheel-hub service jobs, including axle replacement, wheel-bearing service and hub maintenance.

The nut is sold individually. If you are servicing multiple axle positions, order the required quantity accordingly.

When replacing an axle nut, inspect the associated axle threads, washer, cotter pin and hub assembly before installation. Any damaged or excessively worn components should be addressed as part of the repair.

Correct Locking Hardware

The castle-style axle nut works together with additional locking hardware. Evo X OEM axle-nut kits commonly pair 3885A009 with:

• MB109025 — OEM lock washer
• MF472085 — OEM cotter pin

A complete OEM kit for one axle is listed with one 3885A009 nut, one MB109025 lock washer and one MF472085 cotter pin.

This product listing is specifically for the 3885A009 nut, not the complete three-piece kit, unless otherwise stated in your store’s product options.

When performing axle service, follow the applicable Mitsubishi installation and torque procedure rather than relying on a generic axle-nut specification.

Product Specifications

Specification	Details
Brand	Mitsubishi
Part Number	3885A009
Product Type	Axle Nut
Design	Castle Style
Vehicle	Mitsubishi Lancer Evolution X
Model Years	2008–2010 applicable configurations
Position	Front & Rear
Side	LH / RH
Socket Size	32 mm
Locking System	Cotter Pin & Lock Washer
Quantity	1 Nut
OEM Status	Genuine Mitsubishi

Applications

The Mitsubishi OEM 3885A009 castle-style axle nut is intended for applicable:

• Mitsubishi Lancer Evolution X
• Evo X GSR
• Evo X MR where the original axle configuration matches
• 2008–2010 Evo X applications
• Front axle assemblies
• Rear axle assemblies
• Factory Evo X wheel hub and axle service

Because axle-nut designs can vary, always compare the existing hardware before ordering. Evo-specific suppliers recommend visual confirmation of the nut style.

When Should You Replace the Axle Nut?

An axle nut may need replacement during an axle, hub or bearing repair when the original hardware is damaged, corroded, stripped or otherwise unsuitable for reuse.

It is also useful to replace the nut when restoring an Evo X with new OEM axle hardware or when converting a previously damaged assembly back to factory specifications.

During installation, the axle nut should be tightened according to the correct Mitsubishi service specification. The appropriate locking hardware should also be installed correctly to prevent unintended loosening.

Do not substitute the 3885A009 castle nut for the later solid-style nut without confirming that the axle and locking arrangement are compatible.

Genuine Mitsubishi OEM Replacement

Choosing a genuine Mitsubishi component gives Evo X owners a direct OEM replacement for the applicable factory axle nut. The 3885A009 is cataloged as a genuine Mitsubishi axle assembly castle nut and is also specifically sold by Evo-focused suppliers for the 2008–2010 Evolution X.

For restoration projects, OEM hardware can be particularly useful because small components such as axle nuts, washers and cotter pins are essential to correctly completing a hub or axle assembly.

Buy Mitsubishi Evo X Axle Nut Online

If you are replacing an Evo X axle, servicing a wheel bearing or rebuilding a hub assembly, the Mitsubishi OEM 3885A009 castle-style axle nut provides a genuine factory replacement for the applicable axle configuration.

Before ordering, verify that your vehicle uses the castle-style nut rather than the later solid-style design. The 3885A009 uses a 32 mm socket and is intended to work with the appropriate lock washer and cotter pin.

For customers restoring or maintaining a 2008–2010 Mitsubishi Evolution X, this OEM axle nut is a practical replacement component for front or rear axle service.

Frequently Asked Questions

What is Mitsubishi part number 3885A009?

3885A009 is a genuine Mitsubishi castle-style axle nut used on applicable Mitsubishi Evolution X axle assemblies.

Does 3885A009 fit the Evo X?

Yes. Evo-specific parts suppliers list 3885A009 for applicable 2008–2010 Mitsubishi Evolution X models.

Is 3885A009 for the front or rear axle?

It can be used on both front and rear axle positions on the applicable Evo X configuration.

What size socket does the 3885A009 use?

The castle-style 3885A009 axle nut uses a 32 mm socket.

Does the 3885A009 include the cotter pin and washer?

No. The 3885A009 is the nut only. The matching OEM components are MB109025 lock washer and MF472085 cotter pin. These can also be purchased together as an OEM axle-nut kit.

What is the difference between 3885A009 and MB515403?

3885A009 is the castle-style axle nut, while MB515403 is the solid-style axle nut used on the applicable later Evo X configuration. Always verify the nut style on the vehicle before ordering.

Is the 3885A009 sold individually?

Yes. The OEM 3885A009 is sold individually as one axle nut.

Conclusion

The Mitsubishi OEM Axle Nut Castle Style for 2008–2010 Evo X (3885A009) is a genuine Mitsubishi 32 mm castle-style axle nut for applicable front and rear Evo X axle assemblies, providing the correct OEM replacement hardware for hub, bearing and axle service—order genuine Mitsubishi Evo X parts from evomotorparts.com for your next drivetrain or suspension repair.