Description

STM OEM Timing Chain Replacement Kit for Evo X

Firstly,Buy STM OEM Timing Chain Replacement Kit for Evo X online. The STM OEM Timing Chain Replacement Kit for Evo X is a complete timing-chain service kit designed for the 2008–2015 Mitsubishi Lancer Evolution X equipped with the turbocharged 4B11T engine. This kit brings together the primary timing-chain components needed to refresh the engine’s timing system, including a genuine Mitsubishi OEM timing chain, timing-chain tensioner, and both timing-chain guides.

The 4B11T uses a timing chain rather than a conventional timing belt. The chain synchronizes the crankshaft and camshafts so the engine’s valves operate at the correct time relative to the pistons. Because accurate valve timing is essential to proper 4B11T operation, worn, stretched, or damaged timing components should be addressed before they develop into a more serious engine problem.

STM specifically describes this kit as being comprised of all genuine OEM Mitsubishi parts, making it a convenient option for Evo X owners who want to replace the major timing-chain components together rather than sourcing each component separately.

STM OEM Timing Chain Replacement Kit for Evo X

The STM OEM Timing Chain Replacement Kit for Evo X contains four key components for refreshing the 4B11T timing system:

• MN183894 — Timing-chain tensioner
• 1140A073 — Timing chain
• 1141A004 — Black timing-chain guide
• MN183892 — Clear timing-chain guide

STM identifies these components by their Mitsubishi part numbers and diagram references, confirming that the kit is assembled from genuine Mitsubishi OEM components.

Replacing these components together is particularly useful when performing timing-system maintenance on an Evo X engine. Instead of installing a new chain while leaving heavily worn guides or an aging tensioner in place, this kit allows the main wear components to be refreshed at the same time.

What’s Included

1 × Mitsubishi OEM Timing Chain — 1140A073
The timing chain synchronizes crankshaft and camshaft movement inside the 4B11T engine. This is the revised/current OEM chain listed for the Evo X application.

1 × Mitsubishi OEM Timing-Chain Tensioner — MN183894
The tensioner maintains appropriate chain tension during engine operation and works with the chain and guides as part of the complete timing system.

1 × Mitsubishi OEM Timing-Chain Guide — 1141A004
This is the black timing-chain guide identified by STM as the tension-side guide.

1 × Mitsubishi OEM Timing-Chain Guide — MN183892
This is the clear guide identified by STM as the loose-side guide.

2008–2015 Mitsubishi Evo X 4B11T Fitment

This timing-chain kit is designed for the 2008–2015 Mitsubishi Lancer Evolution X. STM’s current product listing specifically identifies these model years as the vehicle fitment.

The application is for the Evo X’s turbocharged 4B11T 2.0-liter four-cylinder engine. The 4B11T uses a dual-overhead-camshaft configuration with MIVEC variable valve timing, making accurate timing-chain operation essential to maintaining proper camshaft synchronization.

Whether you’re maintaining a stock Evo X, restoring an older vehicle, rebuilding a 4B11T, or preparing a modified engine for continued street and performance use, refreshing the timing components can be an important part of preventative engine maintenance.

Always verify the vehicle identification number and existing engine configuration before ordering, particularly if the engine has been replaced or modified.

Why Replace the Evo X Timing Chain Components?

Timing components experience continuous mechanical movement whenever the engine is running. Over time, the chain, guides, and tensioner can experience wear. A worn timing system may contribute to excessive chain movement, abnormal noise, incorrect valve timing, or other engine-performance concerns.

Firstly, replacing the timing chain and guides together gives the new chain proper supporting surfaces instead of pairing it with heavily worn guides.

Secondly, replacing the tensioner at the same time helps ensure the refreshed timing system has the correct tensioning component.

Thirdly, installing a complete OEM-component kit can simplify a timing-system rebuild because the major chain, guide, and tensioner components are packaged together.

For engines with significant mileage or engines that are already being opened for maintenance, replacing related timing components while access is available can also reduce the likelihood of having to repeat labor later.

Genuine Mitsubishi OEM Timing Components

One of the biggest advantages of the STM kit is that STM identifies the components as genuine OEM Mitsubishi parts. This distinguishes the kit from generic aftermarket timing-chain kits that may use non-Mitsubishi chains, guides, or tensioners.

For an Evo X owner focused on maintaining factory-style components, OEM timing parts can be an attractive choice. The individual components are also available separately, including the Mitsubishi OEM timing chain 1140A073 and individual guides and tensioner.

Buying the complete kit, however, provides the convenience of receiving the primary timing-chain components together.

Evo X Timing Chain Maintenance

A timing-chain service should be approached carefully because the chain controls the relationship between the crankshaft and camshafts. Incorrect installation or timing alignment can cause serious engine damage.

The timing cover and related components must be removed according to the appropriate service procedure, and the crankshaft and camshaft timing marks must be correctly aligned during installation.

Because timing work directly affects valve timing, professional installation is recommended for anyone without the appropriate tools and experience.

For technicians working on an Evo X 4B11T, specialized timing tools may also be useful during the procedure. For example, an Evo X timing-chain wedge tool is specifically marketed for timing-chain removal and certain camshaft installation procedures.

Product Specifications

Brand: STM Tuned
Components: Genuine Mitsubishi OEM
Product Type: Timing Chain Replacement Kit
STM SKU: STM-EVOX-TCRK
Vehicle: Mitsubishi Lancer Evolution X
Model Years: 2008–2015
Engine: 4B11T
Timing System: Chain-driven
Timing Chain: 1140A073
Tensioner: MN183894
Black Guide: 1141A004
Clear Guide: MN183892
Application: Evo X 4B11T engine

The kit is specifically listed by STM for the 2008–2015 Mitsubishi Lancer Evolution X.

STM OEM Timing Chain Kit vs. Buying Individual Parts

You can purchase individual timing components separately, but a complete kit offers a straightforward solution when several components need replacement at once.

For example, the OEM timing chain 1140A073 is available separately, while individual Evo X timing-chain guides and the timing-chain tensioner are also sold separately.

The STM kit combines the four primary components into one package, making it easier to order the main timing-chain service parts without having to identify each component individually.

This can be particularly convenient during a 4B11T engine rebuild, timing-chain replacement, preventative maintenance service, or restoration project.

Frequently Asked Questions

Does this kit fit the Evo X?

Yes. The kit is listed for 2008–2015 Mitsubishi Lancer Evolution X models.

Is the timing chain genuine Mitsubishi?

Yes. STM states that the kit is comprised of genuine OEM Mitsubishi parts.

What timing chain is included?

The kit includes Mitsubishi OEM timing chain 1140A073.

Does the kit include the timing-chain tensioner?

Yes. The kit includes Mitsubishi OEM tensioner MN183894.

Does it include both timing-chain guides?

Yes. The kit includes 1141A004 and MN183892, identified by STM as the black and clear timing-chain guides.

Is this kit for the Evo X 4B11T?

Yes. It is designed for the timing system used on the Mitsubishi Evo X 4B11T engine.

Does this kit include the crankshaft timing-chain sprocket?

No. The listed kit contains the timing chain, tensioner, and two guides. The crankshaft timing-chain sprocket is a separate component.

Is professional installation recommended?

Yes. Timing-chain replacement requires accurate crankshaft and camshaft timing alignment, so professional installation is recommended unless you have the appropriate tools, service information, and experience. If you’re replacing a worn timing chain, rebuilding your 4B11T, or performing preventative maintenance on your Evolution X, the STM OEM Timing Chain Replacement Kit for Evo X provides the genuine Mitsubishi timing chain, tensioner, and both guides needed to refresh the primary timing components, so shop and order your STM OEM timing chain kit and other genuine Mitsubishi Evo engine parts from evomotorparts.com today.