Description

Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter for Evo X (1028A025)

Firstly, Buy Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Evo X 1028A025. The Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Evo X is a genuine factory replacement filter designed for the MIVEC oil control system used on the Mitsubishi Lancer Evolution X 4B11 engine. Mitsubishi part number 1028A025 is listed as the oil feeder control valve filter and is specifically applicable to the Evo X CZ4A platform.

This small but important engine component helps protect the MIVEC oil control system from contamination and is a useful replacement item when servicing the engine, diagnosing MIVEC-related issues, or rebuilding a 4B11. The genuine OEM filter is designed to work with the factory Mitsubishi oil feeder control valve system rather than requiring an aftermarket substitute.

Genuine Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter

The 4B11T engine in the Evolution X uses Mitsubishi’s MIVEC variable valve timing system. The oil feeder control valve regulates oil supplied to the variable valve timing mechanism, while the dedicated filter helps keep contaminants from interfering with this oil-control circuit.

Mitsubishi identifies 1028A025 as “FILTER, OIL FEEDER CONTROL VALVE.” OEM parts listings also identify it as a genuine Mitsubishi component for the Evo X 4B11 application.

Because the MIVEC system relies on controlled engine-oil flow, keeping the oil-control passages and related filter in good condition is an important part of maintaining the system. A contaminated or restricted filter can potentially interfere with oil flow to the control system, which is why this component should not be overlooked during engine service.

Why Replace the Evo X MIVEC Filter?

Firstly, the Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Evo X provides a direct factory replacement using the correct Mitsubishi part number. This makes it particularly useful when restoring a 4B11T engine to its original specification.

Secondly, the filter is part of the MIVEC oil-control circuit. Keeping the filter and surrounding oil passages clean helps maintain the intended factory oil-control arrangement.

Thirdly, replacing a small OEM filter during engine maintenance can be worthwhile when the original component has accumulated contamination or when an engine is being rebuilt. MAPerformance specifically lists the component as a factory replacement filter for the stock Evo X MIVEC system.

For enthusiasts working on an Evo X, ordering by the exact 1028A025 part number also helps avoid confusing this filter with the separate MIVEC oil feeder control valves.

Evo X 4B11 MIVEC Application

The 1028A025 filter is listed for the Mitsubishi Lancer Evolution X CZ4A, including the 2008–2015 model range. STM Tuned states that it fits all Evo X 4B11 applications and includes one filter with the purchase.

Applicable vehicles include:

• 2008 Mitsubishi Lancer Evolution X
• 2009 Mitsubishi Lancer Evolution X
• 2010 Mitsubishi Lancer Evolution X
• 2011 Mitsubishi Lancer Evolution X
• 2012 Mitsubishi Lancer Evolution X
• 2013 Mitsubishi Lancer Evolution X
• 2014 Mitsubishi Lancer Evolution X
• 2015 Mitsubishi Lancer Evolution X
• Mitsubishi Evo X CZ4A
• Mitsubishi 4B11T turbocharged engine

Other Mitsubishi vehicles with 4B11-family engines may also appear in broader OEM catalog listings for 1028A025, but Evo X fitment should be confirmed using the vehicle VIN and engine configuration before ordering. Nengun, for example, lists the part across several Mitsubishi applications while specifically including the Lancer Evolution X CZ4A.

MIVEC Oil Feeder Control Valve Filter vs. MIVEC Control Valve

It is important not to confuse 1028A025 with the complete MIVEC oil feeder control valve.

The filter is a separate component from the electronically controlled oil feeder control valves. STM Tuned lists the Evo X MIVEC valves separately, including 1028A021 for the front valve and different rear valve part numbers depending on model year.

Therefore, if you are diagnosing a MIVEC problem, make sure you identify whether you need the filter, the control valve, an O-ring, or another component of the system before ordering.

The correct OEM part number for this listing is:

1028A025 — MIVEC Oil Feeder Control Valve Filter

Ideal for Evo X Maintenance and Engine Builds

The Mitsubishi OEM 1028A025 filter is an excellent component to consider during several types of Evo X work.

It can be used for:

• Routine 4B11T engine maintenance
• MIVEC system servicing
• 4B11 engine rebuilds
• Cylinder head and engine repairs
• OEM restoration projects
• Replacement of contaminated filters
• Troubleshooting oil-control system issues
• Preventative maintenance on high-mileage engines
• Modified Evo X engines retaining the factory MIVEC system

During an engine rebuild, it is sensible to inspect the MIVEC oil-control components and associated oil passages for contamination. The condition of the engine oil and lubrication system can affect small oil-control components, so the filter should be checked whenever the related system is being serviced.

Mitsubishi OEM 1028A025 Specifications

Product: MIVEC Oil Feeder Control Valve Filter
Brand: Mitsubishi OEM
Part Number: 1028A025
Component: Oil Feeder Control Valve Filter
Engine: 4B11 / 4B11T
Vehicle: Mitsubishi Lancer Evolution X
Chassis: CZ4A
Model Years: 2008–2015
Quantity: 1 filter
Condition: Genuine OEM replacement
System: MIVEC variable valve timing / oil control

STM Tuned confirms that one filter is included with the purchase and identifies the diagram reference as 04228ZZ.

Installation and Maintenance Considerations

Installation should be performed using the appropriate Mitsubishi service information for the 4B11 engine. Before installing a replacement filter, the surrounding area should be kept clean so dirt or debris does not enter the MIVEC oil-control circuit.

If you are replacing the filter because of a suspected MIVEC issue, it is also worth checking the engine oil condition, oil passages, electrical connections, oil feeder control valve, and related components rather than automatically assuming the filter is the only cause.

A new filter cannot correct an unrelated electrical, mechanical, lubrication, or control-valve problem. Proper diagnosis is recommended when an Evo X is experiencing MIVEC-related fault codes or abnormal engine behavior.

Buy Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Online

For Evo X owners looking to maintain the factory 4B11T MIVEC system, the Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Evo X (1028A025) is a straightforward genuine replacement identified by its original Mitsubishi part number.

Whether you are refreshing a high-mileage engine, completing a 4B11T rebuild, replacing a contaminated filter, or restoring an Evo X to OEM specification, using the correct Mitsubishi filter helps keep the original oil-control configuration intact.

Frequently Asked Questions

What is Mitsubishi part number 1028A025?

1028A025 is the Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter, also described in Mitsubishi parts catalogs as “Filter, Oil Feeder Control Valve.”

What Evo does 1028A025 fit?

It is listed for the 2008–2015 Mitsubishi Lancer Evolution X (CZ4A) with the 4B11 engine.

Is 1028A025 a genuine Mitsubishi OEM part?

Yes. Evo-specific OEM suppliers identify 1028A025 as a genuine Mitsubishi factory replacement MIVEC oil feeder control valve filter.

How many filters are included?

The product is sold individually, with one filter included.

Is 1028A025 the MIVEC oil feeder control valve itself?

No. 1028A025 is the filter for the oil feeder control valve system. The actual Evo X MIVEC control valves use separate part numbers such as 1028A021 and 1028A022/1028A110 depending on position and model year.

Can I use this on a modified Evo X?

It can remain applicable when the factory 4B11 MIVEC system and compatible components are retained, but modified engines should always be checked against the exact engine configuration and OEM part number.

Should I verify my VIN before ordering?

Yes. OEM catalogs can contain multiple applications for the same component, so VIN verification is recommended to confirm compatibility. STM Tuned specifically recommends additional VIN research when confirming the part number.

For genuine Evo X engine maintenance and 4B11T MIVEC servicing, buy the Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Evo X (1028A025) from evomotorparts.com and keep your factory MIVEC oil-control system properly serviced.

Buy Mitsubishi OEM MIVEC Oil Feeder Control Valve Filter Evo X 1028A025, a genuine factory replacement filter for the 4B11T MIVEC system.