PISTON RING COMPATIBLE WITH: HUSQVARNA: 40, 45, 133, 234, 238, 340 JONSERED: RS40 PART NUMBER: 503 28 90-02, 501 60 34-02, 537 40 00-01 THIS PISTON RING MEASURES AT 40MM X 1.5MM. PLEASE MAKE SURE THIS IS THE RIGHT SIZE FOR YOUR MACHINE BEFORE BUYING. PLEASE COMPARE PHOTOS AND PART NUMBERS WITH THE PART YOU ARE REPLACING BEFORE ORDERING THIS AUCTION IS FOR: 1X PISTON RING See our other items a a.
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