Description

STM Clutch Fork Stop for Mitsubishi Evo 7/8/9/X

Firstly, Buy STM Clutch Fork Stop Evo 7 8 9 X for Mitsubishi Evolution models. Protect your Mitsubishi Lancer Evolution clutch system with the STM Clutch Fork Stop for Evo 7/8/9/X, a purpose-built drivetrain component designed to control clutch fork travel during fast shifting. Manufactured by STM Tuned, this clutch fork stop provides a simple and effective solution for Mitsubishi Evolution models equipped with a pull-style clutch system, helping prevent excessive clutch fork movement that can allow the throw-out bearing to move out of its intended release position.

The clutch fork stop is especially useful for performance-oriented Evo builds where quick shifting and upgraded multi-plate clutch systems can place additional demands on the clutch release mechanism. Rather than waiting for a clutch-related problem that could require transmission removal, the STM fork stop is designed as preventive maintenance that can be installed quickly and adjusted as needed.

STM Clutch Fork Stop for Evo 7/8/9/X

The STM Clutch Fork Stop for Evo 7/8/9/X is designed to provide a controlled stopping point for the clutch fork. During aggressive or rapid clutch operation, the fork can travel farther than intended. STM designed this component to help prevent the throw-out bearing from entering the release position during fast shifts.

The product bolts directly to the clutch slave cylinder, making installation considerably simpler than transmission removal. STM recommends checking the adjustment regularly, including during routine oil changes, to ensure the stop remains correctly positioned.

Firstly, the billet aluminum construction provides a durable foundation for the stop. Secondly, the black anodized finish gives the part a clean appearance that fits naturally into a performance Evo engine bay. Thirdly, the compact design and direct slave-cylinder installation make it a practical addition to a clutch system without requiring major modifications.

Designed for Mitsubishi Evolution Clutch Systems

The STM fork stop is designed specifically for Mitsubishi Lancer Evolution applications using the appropriate pull-style clutch arrangement. STM lists fitment for 2001–2006 Mitsubishi Evolution 7, 8, and 9, as well as 2008–2015 Mitsubishi Evolution X.

This makes the component suitable for a wide range of Evo builds, including street cars, modified performance vehicles, track cars, and applications using aftermarket clutch systems.

Compatible applications include:

• Mitsubishi Lancer Evolution VII — 2001–2006
• Mitsubishi Lancer Evolution VIII — 2001–2006
• Mitsubishi Lancer Evolution IX — 2001–2006
• Mitsubishi Lancer Evolution X — 2008–2015
• Pull-style clutch applications
• Performance and multi-plate clutch setups

Always verify the clutch and transmission configuration of your specific vehicle before installation, especially if the car has been modified with an aftermarket clutch, release bearing, or other drivetrain components.

Prevent Clutch Fork Over-Travel

The main purpose of the STM clutch fork stop is to limit excessive return travel of the clutch fork. This is important because unwanted fork movement can allow the throw-out bearing to move farther than intended.

STM specifically describes the product as being designed to stop the throw-out bearing from entering the release position during fast shifts. The company also recommends the part as preventive maintenance for vehicles that can use it.

This makes the fork stop particularly relevant to Evo owners who regularly perform quick shifts, drive aggressively, participate in motorsport, or run an upgraded clutch.

A clutch fork stop does not increase engine horsepower. Instead, it is a supporting drivetrain component intended to help protect and control the clutch release mechanism.

Billet Aluminum Construction

The STM fork stop is manufactured from billet aluminum and finished with a black anodized coating. The current STM design was updated in January 2026 and is now machined in-house by STM.

Billet aluminum provides a lightweight and rigid material for this type of mechanical component. The black anodized finish also gives the part a clean appearance while fitting well with other aftermarket hardware in a modified Mitsubishi Evolution engine bay.

For enthusiasts refreshing an older Evo drivetrain, upgrading the clutch, or installing a multi-plate clutch, replacing or adding supporting hardware such as a clutch fork stop can be a practical part of the overall installation.

Easy Installation and Adjustment

One of the advantages of the STM clutch fork stop is its straightforward installation. The component bolts directly to the clutch slave cylinder, and STM describes installation as quick and relatively easy for someone with basic mechanical skills.

The adjustment should be performed carefully. The stop needs to control excessive fork movement without interfering with normal clutch operation. Once installed, the clutch should be checked for proper engagement and disengagement.

STM recommends checking the adjustment regularly or whenever the engine oil is changed. This provides an easy opportunity to inspect the stop and make sure the adjustment remains correct as part of normal vehicle maintenance.

Ideal for Performance Evo Builds

The clutch fork stop is particularly relevant when upgrading the clutch system on a Mitsubishi Evolution. Multi-plate clutches and aggressive driving can make clutch-release components more important to overall drivetrain reliability.

For example, an Evo equipped with an upgraded clutch disc, pressure plate, lightweight flywheel, or multi-plate clutch can benefit from having the supporting release system properly configured. The STM fork stop can be installed alongside other clutch components as part of a complete drivetrain refresh.

It is also useful for preventive maintenance. Instead of treating the fork stop as a replacement for a failed component, it can be installed proactively to help control clutch fork travel before a problem occurs.

What’s Included

The current STM kit includes the components needed to install and adjust the fork stop:

• 1 × STM Fork Stop
• 2 × M8x30 stainless-steel mounting bolts
• 1 × M6x45 stainless-steel adjustment bolt
• 1 × M6 stainless-steel nut

STM lists the product weight at approximately 3.05 oz.

The combination of billet aluminum construction and stainless hardware provides a compact, lightweight package designed specifically around Mitsubishi Evolution clutch applications.

STM-FORK-STOP Product Details

Brand: STM Tuned
Product: STM Clutch Fork Stop
Part Number: STM-FORK-STOP
Material: Billet aluminum
Finish: Black anodized
Hardware: Stainless steel
Installation: Directly to clutch slave cylinder
Fitment: Evo 7/8/9 and Evo X
Weight: 3.05 oz
Application: Pull-style clutch system
Design: Updated January 2026, machined in-house by STM

Buy the STM Clutch Fork Stop Online

If you are looking to buy an STM Clutch Fork Stop for Mitsubishi Evo 7, 8, 9, or X, the STM-FORK-STOP is a practical preventive-maintenance upgrade for controlling clutch fork travel and helping protect the clutch release mechanism during fast shifting. Shop Mitsubishi Evo clutch and drivetrain parts at evomotorparts.com and order the STM fork stop for your performance build.

Frequently Asked Questions

What does the STM Clutch Fork Stop do?
It provides a stopping point for the clutch fork and is designed to prevent the throw-out bearing from entering the release position during fast shifting.

What is the STM part number?
The product part number is STM-FORK-STOP.

What is the STM fork stop made from?
The current design is machined from billet aluminum and finished with a black anodized coating.

What Mitsubishi Evo models does it fit?
STM lists fitment for Evo 7, Evo 8, Evo 9, and Evo X. Specifically, the listed applications are 2001–2006 Evo 7/8/9 and 2008–2015 Evo X.

Is it suitable for a multi-plate clutch?
STM describes the product as a preventive-maintenance component for Evo vehicles with pull-style clutches and specifically highlights its use where fast shifting can create the relevant clutch-fork issue.

Where does the fork stop install?
The STM fork stop bolts directly to the clutch slave cylinder.

Is installation difficult?
STM describes the installation as very quick and relatively easy for someone with basic mechanical skills. Proper adjustment is important after installation.

Does the STM fork stop increase horsepower?
No. It is a clutch-release and drivetrain-support component designed to control clutch fork movement rather than increase engine power.

Should the adjustment be checked after installation?
Yes. STM recommends checking the adjustment regularly or when changing the engine oil.

What comes with the STM fork stop?

The current kit includes the billet aluminum fork stop, two M8x30 stainless mounting bolts, one M6x45 stainless adjustment bolt, and one M6 stainless nut. For Mitsubishi Evolution owners looking to add preventive clutch-system protection without a complicated installation, the STM Clutch Fork Stop for Evo 7/8/9/X offers a compact billet-aluminum solution designed to control clutch fork travel and support reliable clutch operation during demanding street or track use.

Buy STM Clutch Fork Stop Evo 7 8 9 X for Mitsubishi Evolution models, Shop STM-FORK-STOP clutch and drivetrain parts online.