How can I determine whether my cylinder is reusable so as to replace just the piston?

The most common problem of a cylinder that needs replacement is in case there are scratches into the surface of the tube where the piston runs.

What other parts I may need to replace on my machine when replacing the piston?

To replace the piston you need to disassemble the engine, so you also need to replace the cylinder gasket, at least. Also, it is recommended to check the piston bearing.

Skip to the end of the images gallery

Skip to the beginning of the images gallery

Piston Kit for OLEO-MAC 938 / EFCO 138 Chainsaws (40mm)

$33.05

Out of stock

Notify me when the price drops

Notify me when this product is in stock

Piston Kit fit OLEO-MAC 938 / EFCO 138 Chainsaws (40mm) and related spare parts.

Details

This listing is about a brand new after-market Piston KitHow to find the size of a piston ring in its original package for OLEO-MACSpare parts for OLEO-MAC machines 938 and EFCOSpare parts for EFCO machines 138 models, 40mm in diameter.

Our Piston Kits are branded and come directly from the top-quality Manufacturers METEOR and EPISAN.
We mention our Suppliers in all our listings, because weﾒre proud of them. No parts in white boxes - No fictitious brands!
Protect your valuable OLEO-MAC machine. Use only Branded & High-Quality Parts. Better Safe than Sorry!

🔧 Parts Finder

Specifications

Specifications
Product Code	1000197
Compatible Brand	OLEO-MAC
Compatible Models	EFCO 138, OLEO-MAC 938
OEM Part #	93800015

You may also need

Questions (2)