Genuine Subaru KS3/KS4/KV3/KV4/TT1/TT2/TV1/TV2 (Engine:EN07) Engine Piston Ring Set (STD) for Sambar (OEM:12033KA421)

Product Information

Product Name: Engine Piston Ring Set (STD)
Manufacturer: Subaru Genuine Parts
OEM Part Number: 12033KA421
Part Name: Piston Ring Set
Type: Genuine Subaru Replacement Part

Genuine Subaru standard-size (STD) piston ring set designed for compatible Vivio, Pleo, and Sambar models equipped with the EN07 engine.

These piston rings are installed around the outer circumference of the pistons inside the engine.

They help maintain combustion chamber sealing and regulate the amount of engine oil on the cylinder walls, reducing compression loss and excessive oil consumption caused by oil entering the combustion chamber.

Included Items

Genuine Subaru Engine Piston Ring Set (STD) × 1 Set

OEM Part Number: 12033KA421

Important: This part number is generally supplied as a set for one engine. Please confirm the actual set contents before installation.

Compatible Vehicles

SUBARU

Engine: EN07 (Applicable Specifications Only)

Important: Compatibility may vary depending on the production period, engine specifications, and piston type, even among vehicles with the same model code.

Specifications

Note:

Please make sure that the engine model is compatible before purchasing.

Please check the part number before purchasing.

OEM Part Number: 12033KA421

This product is a standard-size (STD) piston ring set used in certain vehicles equipped with the EN07 engine.

The correct piston rings may vary depending on the production period, engine specifications, and piston type, even among vehicles with the same model code.

This part number is generally supplied as a set for one engine. Please confirm the actual set contents before installation.

Installation requires disassembling the engine, removing the pistons, and removing the existing piston rings.

The piston ring grooves must be cleaned before installing the new rings in their specified orientation and positions.

If the cylinders and pistons are within the manufacturer's service limits, major machining is generally not required. However, accurate measurements and cylinder honing may be necessary depending on the condition of the components.

Proper measurement of cylinder and piston wear, piston ring end gaps, and clearances is required.

All components must be assembled according to the manufacturer's specified procedures and tightening torque.

No electrical wiring work is required.

Installation difficulty is very high because the replacement involves internal engine disassembly, precision measurements, piston ring end gap adjustment, and accurate reassembly.

Professional installation is strongly recommended.

The listed dimensions and weight are approximate and may differ from the actual product.

We are not responsible for any labor costs for installation, removal, or repair.

Shipping & Returns

This product may be subject to customs duties or import taxes. Any such fees are the responsibility of the customer.

Please note that it may take up to one week to ship your order (handling time).

Due to international shipping, we are unable to accept returns or refunds for reasons attributable to the customer.