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

The most common problem of a piston that needs replacement is in case there are scratches on its body.

What other parts I may need to replace when replacing the piston rings?

To replace the piston rings you need to disassemble the engine, so you also need to replace the cylinder gasket.

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Piston Ring for HUSQVARNA 343 F FR FRM R, 345 R RX, 345 e, 345 F FR FRM, 346 XP

$6.96

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Piston Ring for HUSQVARNA 343 F FR FRM R, 345 R RX, 345 e, 345 F FR FRM, 346 XP and related spare parts.

Details

Product Description

This listing is about an after-market top-quality Piston Ring SetTips for safely installing piston rings made by the well-known OEM firm CABER

and fits the following HUSQVARNASpare parts for HUSQVARNA machines models:

343 F
343 FR
343 FRM

343 R
343 RX

345 e
345
345 EPA

345 F
345 FR
345 FRM

Brush Cutters:

345 R
345 RX

Trimmer / Clearing Saw:

345 RX

346 XP
346 XP EPA
346 XP Japan (45cc, New Edition, after yr. 2007)

The set consists of one (1) piston ring and replaces HUSQVARNA part #503 28 90-05.

Note: This piston ring does not fit the the following models with bore size 44,3 mm:

346 XP with deco Valve, New Edition (after yr. 2007)
346 XP New Edition (after yr. 2007)

Our Piston Rings are branded and come directly from the top-quality and worldwide-known OEM Manufacturer CABER.
Our Piston Rings are made from I-Cast Iron with high bending strength according to ISO STD 6621-3:1990 and DIN 70909.
Protect your valuable HUSQVARNA machine. Use only Branded & High-Quality Parts. Enjoy thousands hours of safe and trouble-free operation!

Important Notice:

If the Part Number of the spare part shown in this listing does not match yours, please let us know. Manufacturers often replace old Part Numbers with new ones, as they launch new products in the market.
If you don't know the OEM Part Number for the piston rings of your machine, please let us know the dimensions of the piston rings you are looking for (diameter x thickness).

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Specifications

Specifications
Country of Origin	Italy
Product Code	1008030
Compatible Brand	HUSQVARNA
Compatible Models	HUSQVARNA 346XP Japan, 346XP EPA, 345, 345FR, 345F, 343F, 343FR, 343FRM, 343R, 345 EPA, 345E, 343RX, 345FRM, 346XP, 345RX, 345R
OEM Part #	503289005

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