Mitsubishi OEM Engine Oil Jet Squirter for Evo X (1228A012)

Description

The Mitsubishi OEM Engine Oil Jet Squirter (1228A012) is a genuine Mitsubishi factory replacement component designed specifically for the Mitsubishi Lancer Evolution X equipped with the turbocharged 4B11T engine. Located inside the engine block beneath the pistons, the oil jet squirter is an important component of the engine’s piston cooling and lubrication system.

The oil jet squirter is designed to direct engine oil toward the underside of the piston during engine operation. This additional oil flow helps transfer heat away from the piston and provides lubrication to critical areas of the piston and cylinder assembly. Proper operation of the piston oil jet system is especially important in a high-performance turbocharged engine such as the Evo X’s 4B11T, where elevated cylinder temperatures, boost pressure, and engine speeds can place significant demands on the internal components.

The 1228A012 is a genuine Mitsubishi OEM oil jet manufactured to the original specifications for the Evo X cylinder block. It is designed for proper fitment within the factory oil jet system and is an ideal replacement when rebuilding, servicing, or restoring an Evo X engine to OEM specifications. Mitsubishi parts references identify 1228A012 as the cylinder-block oil jet/oil jet squirter for the Evolution X.

Product Details

• Brand: Mitsubishi OEM
• Part Number: 1228A012
• Product: Engine Oil Jet Squirter
• Also Known As: Piston Oil Jet / Cylinder Block Oil Jet / Oil Squirter
• Vehicle: Mitsubishi Lancer Evolution X
• Model Years: 2008–2015
• Engine: 4B11T 2.0L Turbocharged
• Location: Engine Cylinder Block
• Condition: Genuine OEM Replacement
• Quantity: Sold individually
• Complete Set: 4 oil jet squirters required for a four-cylinder engine
• Related Part: MD372046 Oil Jet Check Valve

Piston Cooling & Engine Lubrication

The piston oil squirters play an important role in the thermal management of the 4B11T engine. During operation, engine oil is directed through the oil jet system toward the underside of each piston. This helps remove heat from the piston assembly while also providing additional lubrication around the piston and cylinder area.

For an Evo X that is regularly driven hard, tuned for additional power, used for track driving, or equipped with upgraded turbocharging and other performance modifications, maintaining a properly functioning oil jet system is particularly important. The oil squirters are part of the engine’s original design and contribute to the overall lubrication and cooling strategy of the 4B11T.

Genuine Mitsubishi OEM Replacement

When rebuilding an Evo X engine, using genuine OEM components can help ensure the replacement parts are manufactured to the correct specifications. The Mitsubishi 1228A012 oil jet squirter is designed for the Evo X cylinder block and provides an OEM-style replacement for a damaged, missing, or worn oil jet.

This makes the part an excellent choice for engine rebuilds, short-block assemblies, piston replacements, cylinder block restoration, preventative maintenance, and OEM engine restorations.

If your cylinder block is already disassembled for machine work or an engine rebuild, inspecting the oil squirters and replacing any damaged or questionable units is a practical step before final engine assembly.

Designed for the Mitsubishi Evo X 4B11T

The 1228A012 oil jet squirter is specifically listed for the 2008–2015 Mitsubishi Lancer Evolution X. OEM cylinder-block diagrams identify four oil jet squirters for the four-cylinder 4B11T engine.

Each squirter is installed individually, meaning a complete four-cylinder replacement requires four 1228A012 oil jets. The retaining/check-valve components are separate parts; the MD372046 oil jet check valve is used separately in the Evo X cylinder-block assembly.

Ideal for Engine Rebuilds & Performance Builds

Whether you’re rebuilding a factory 4B11T, assembling a performance short block, replacing pistons, or restoring an Evo X engine, the Mitsubishi OEM 1228A012 oil jet squirter is a quality component to include in the build.

It is particularly useful when the original oil jets have been damaged during engine disassembly, contaminated with debris, or are being replaced as part of a complete cylinder-block refresh.

For performance-oriented Evo X builds, maintaining the factory piston cooling system can be an important part of building a reliable engine. Combining the correct OEM oil squirters with properly functioning oil jet check valves helps maintain the intended oil delivery system within the cylinder block.

What’s Included

1 × Mitsubishi OEM Engine Oil Jet Squirter (1228A012)

The oil jet squirter is sold individually. Four pieces are required for a complete Evo X 4B11T engine.

Important Fitment Information

This part is intended for the Mitsubishi Lancer Evolution X / 4B11T engine. Please verify the OEM part number 1228A012 against your application before ordering.

For a complete oil jet system replacement, additional components such as the MD372046 oil jet check valve may be required and are sold separately.

Whether you’re maintaining a stock Evo X or building a high-performance 4B11T, the Mitsubishi OEM 1228A012 Engine Oil Jet Squirter is a reliable factory-specification replacement designed to maintain proper piston cooling and lubrication within the engine block.