38 mm Cylinder and Piston Kit for ECHO CS-352 / CS-352AC Chainsaws – OEM P021-035190 / P021-035201

Description

This 38 mm cylinder and piston kit for ECHO CS-352 is an aftermarket top-end replacement assembly for compatible ECHO CS-352 and CS-352AC petrol chainsaws.

The cylinder is integrated into the upper crankcase casting, following the original ECHO engine design. The corresponding manufacturer references are P021-035190 for the crankcase kit and P021-035201 for the piston kit.

This replacement supplies the cylinder section and piston components required for rebuilding a compatible engine.

Compatible Models

• ECHO CS-352 – matching 38 mm cylinder and crankcase configuration
• ECHO CS-352AC – matching 38 mm cylinder and crankcase configuration

OEM References

• P021-035190 – complete original crankcase kit reference
• P021-035201 – original piston kit reference
• A101-000580 – piston ring
• 100013-15330 – piston pin
• 100015-04630 – piston pin retaining clips

Kit Contents

• 38 mm cylinder integrated into the upper crankcase section
• Piston
• Piston ring
• Wrist pin
• Piston retaining clips
• Gasket sealant supplied with the kit

The lower crankcase half is not included. The aftermarket assembly is not identical in contents to the complete original ECHO P021-035190 crankcase kit.

When to Replace the Cylinder

A worn or damaged cylinder can cause:

• Reduced engine compression
• Difficult starting
• Loss of cutting power
• Piston scoring
• Excessive friction or engine seizure
• Poor engine performance after overheating

Before replacing the cylinder, identify and correct the cause of any previous engine damage.

Installation Recommendations

Inspect the crankshaft, connecting rod, bearings, crankcase mating surfaces and oil seals before assembly.

Clean the crankcase mating surfaces thoroughly and use an appropriate two-stroke crankcase sealant.

Lubricate the piston, ring and cylinder bore with suitable two-stroke oil before installation.

Install the piston ring and retaining clips correctly, then tighten the crankcase fasteners using the appropriate service procedure.

After assembly, perform a crankcase pressure and vacuum test and check the carburetor settings.

This is an aftermarket cylinder and piston assembly, not a genuine ECHO OEM product.

Browse additional ECHO and other chainsaw replacement parts at MTP or consult the official ECHO CS-352AC illustrated parts catalogue.