Description

AC Ironman Sprung (Street) Clutch Kit for Mitsubishi Lancer 2008–2017 2.0L 2.4L (4B11, 4B12)

Firstly, BUY AC Ironman Lancer Clutch Kit for 2008–2017 Mitsubishi Lancer 4B11 and 4B12 engines. Upgrade the clutch system in your Mitsubishi Lancer with the AC Ironman Sprung Street Clutch Kit, engineered for 2008–2017 Lancer models equipped with the 2.0L 4B11 or 2.4L 4B12 naturally aspirated engine. This Action Clutch Ironman Sprung clutch is designed for drivers who need increased clutch holding capacity and durability while retaining a sprung clutch disc configuration suited to street and performance-oriented use.

The Ironman series uses American Sintered Iron friction material combined with a heavy-duty pressure plate to provide increased torque capacity over a standard factory clutch. The sprung-disc design incorporates damping in the clutch disc, making it a more appropriate choice for vehicles that see both spirited driving and regular road use than the dedicated unsprung Ironman race version.

Firstly, the sintered iron friction material is designed to withstand demanding clutch temperatures and repeated engagement. Secondly, the heavy-duty pressure plate provides increased clamping force for improved clutch holding capacity. Thirdly, the sprung disc helps provide a more suitable engagement characteristic for performance street applications.

Action Clutch states that the Ironman Sprung (Street) kit is designed around high-performance applications and uses enclosed spring retainers intended to keep the disc springs securely contained. The company also specifies a 250% increase in holding capacity over the factory kit, with that rating based on crank torque rather than wheel torque.

The kit is available under part number ACR-1184-SPR and is designed for manual-transmission Mitsubishi Lancer applications. It includes the major clutch components and installation items required for the application, including the sprung American Sintered Iron disc, dual-clamp-load heavy-duty pressure plate, pilot bearing/bushing where applicable, alignment tool, and conventional release bearing.

Features

• Action Clutch Ironman Sprung (Street) clutch kit
• Part number: ACR-1184-SPR
• Designed for 2008–2017 Mitsubishi Lancer applications
• Fits selected 2.0L 4B11 and 2.4L 4B12 non-turbo engines
• American Sintered Iron friction material
• Sprung clutch disc design
• Dual-clamp-load heavy-duty pressure plate
• Increased holding capacity over the factory clutch
• Designed for performance-oriented street applications
• Includes conventional release bearing
• Pilot bearing/bushing included where applicable
• Clutch alignment tool included
• SFI 1.1 clutch assembly specification
• Quality-checked by Action Clutch before release

Vehicle Fitment

The AC Ironman Sprung Street Clutch Kit is listed for selected Mitsubishi Lancer models from 2008–2017, including:

• Mitsubishi Lancer DE
• Mitsubishi Lancer ES
• Mitsubishi Lancer ES Sportback
• Mitsubishi Lancer GT
• Mitsubishi Lancer GT Sportback
• Mitsubishi Lancer GTS
• Mitsubishi Lancer GTS Sportback
• Selected SE and special-edition Lancer models

The kit is intended for 2.0L 4B11 and 2.4L 4B12 naturally aspirated applications. Exact fitment can vary by year, trim, transmission, and market, so verify your vehicle before ordering.

Clutch Construction

American Sintered Iron Disc

The Ironman clutch uses American Sintered Iron friction material designed for high-temperature performance and increased torque capacity. This material is intended for demanding performance applications where a conventional organic clutch may not provide the desired holding capacity.

Sprung Disc

Unlike the ACR-1184 unsprung race clutch, the ACR-1184-SPR uses a sprung disc. The sprung design provides additional damping within the clutch disc and makes this version better suited to performance street applications.

Heavy-Duty Pressure Plate

The kit uses a dual-clamp-load heavy-duty pressure plate designed to increase clamping force and provide greater torque-holding capability compared with a standard factory clutch.

BUY AC Ironman Lancer Clutch Kit for 2008–2017 Mitsubishi Lancer 4B11 and 4B12 engines, Sprung Street clutch with sintered iron disc and HD pressure plate.

Performance Benefits

The AC Ironman Sprung Street clutch is designed for Lancer owners who want more clutch capacity than a standard replacement clutch can provide.

Firstly, the increased clamping force helps the clutch handle higher torque levels.

Secondly, the sintered iron friction material is designed to tolerate demanding operating conditions.

Thirdly, the sprung-disc construction provides damping characteristics that make it more suitable for performance-oriented street use than the dedicated unsprung Ironman race version.

Action Clutch rates the Ironman Sprung system at 250% increased holding capacity over the factory kit, with the manufacturer noting that this figure is measured using crank torque rather than wheel torque.

Specifications

Specification	Details
Manufacturer	Action Clutch
Series	Ironman
Product Type	Sprung Street Clutch Kit
Part Number	ACR-1184-SPR
Application	Mitsubishi Lancer
Model Years	2008–2017
Engine Applications	4B11 / 4B12
Engine Size	2.0L / 2.4L
Engine Type	Naturally Aspirated
Drive Type	FWD
Friction Material	American Sintered Iron
Disc Type	Sprung
Pressure Plate	Dual Clamp Load HD
Release Bearing	Conventional
Pilot Bearing/Bushing	Included where applicable
Alignment Tool	Included
Flywheel	Not included
Holding Capacity	250% over factory kit*
SFI Specification	1.1

*Action Clutch states the 250% increase is rated in crank torque, not wheel torque.

What’s Included

The ACR-1184-SPR package includes:

• Sprung American Sintered Iron clutch disc
• Dual-clamp-load heavy-duty pressure plate
• Pilot bearing/bushing where applicable
• Conventional release bearing
• Clutch alignment tool

The flywheel is not included with the clutch kit.

Installation

Professional installation is recommended when replacing the clutch assembly.

Before installation, inspect the flywheel surface, transmission input shaft, clutch fork or release mechanism, rear main seal area, and related components. The flywheel should be properly inspected and resurfaced or replaced when required by its condition and the manufacturer’s specifications.

After installation, the clutch must be properly broken in. Action Clutch specifies approximately 500 street miles of break-in, with engine speed kept below 4,500 RPM, no more than half throttle, and no boost where applicable. Proper break-in is required for product warranty eligibility and to achieve the expected service life and holding capacity.

Important Fitment Information

This clutch is designed for specific 4B11 and 4B12 non-turbo Mitsubishi Lancer applications. It should not automatically be assumed to fit every Lancer or Evolution model.

In particular, the Evo X 4B11T turbocharged drivetrain should not be treated as the same application simply because it uses a 4B11 engine family. Always verify the exact vehicle, engine, transmission, drivetrain, and clutch configuration before ordering.

Using an incorrectly matched clutch can lead to premature wear, clutch failure, or transmission damage. Action Clutch specifically recommends confirming the appropriate clutch according to the vehicle’s power output and application.

AC Ironman Sprung vs. Unsprung

The Ironman range includes different disc configurations. The ACR-1184-SPR is the sprung version intended for street/performance use, while ACR-1184 is the unsprung version intended specifically for race applications.

The unsprung version uses a solid-hub disc and Action Clutch specifically warns that it is not designed for daily or street driving. For customers looking for the Street Ironman clutch, the sprung ACR-1184-SPR is the appropriate product designation to verify.

Buy AC Ironman Sprung Street Clutch Kit Online

If you are looking to buy an AC Ironman Sprung Street Clutch Kit for Mitsubishi Lancer 2008–2017, this performance clutch provides increased holding capacity for 4B11 and 4B12 naturally aspirated applications.

It is suited to drivers upgrading from a factory clutch for increased performance, spirited driving, or a modified Lancer setup. Before ordering, confirm your Lancer’s exact year, trim, engine, transmission, and drivetrain to ensure the ACR-1184-SPR is the correct application.

Frequently Asked Questions

What engines does the ACR-1184-SPR fit?

It is listed for selected Mitsubishi Lancer applications using the 2.0L 4B11 and 2.4L 4B12 naturally aspirated engines.

Is this the sprung or unsprung Ironman clutch?

The ACR-1184-SPR is the sprung Ironman Street clutch. The ACR-1184 is the separate unsprung version.

Does it include a flywheel?

No. The flywheel is not included with the clutch kit.

What friction material does it use?

The clutch uses American Sintered Iron friction material.

How much break-in is required?

Action Clutch specifies approximately 500 street miles, keeping RPM below 4,500 and throttle input at no more than half during the break-in period.

Is this clutch suitable for an Evo X?

Do not assume fitment. This listing is for specific non-turbo 4B11/4B12 Mitsubishi Lancer applications, not simply every vehicle using a 4B11 engine. Verify the exact application before ordering.

Why Buy from evomotorparts?

• Quality Mitsubishi performance and replacement parts
• OEM and premium aftermarket components
• Performance-focused Mitsubishi drivetrain parts
• Competitive pricing
• Worldwide shipping
• Dedicated customer support for Mitsubishi enthusiasts

Conclusion

The AC Ironman Sprung Street Clutch Kit for Mitsubishi Lancer 2008–2017 combines American Sintered Iron friction material with a heavy-duty pressure plate and sprung disc design to provide increased clutch holding capacity for selected 4B11 and 4B12 naturally aspirated Lancer applications.

With its performance-focused construction, included release components, alignment tool, and 250% claimed increase in holding capacity over the factory kit, the ACR-1184-SPR is designed for drivers upgrading the clutch system of a performance-oriented Mitsubishi Lancer. Always verify exact vehicle and transmission compatibility before ordering.

BUY AC Ironman Lancer Clutch Kit for 2008–2017 Mitsubishi Lancer 4B11 and 4B12 engines, Sprung Street clutch with sintered iron disc and HD pressure plate.