{"product_id":"50mm-piston-and-seal-kit-fits-stihl-br500-br550-br600-br700-4h-faol-j0wj","title":"50mm Piston and Seal Kit Fits Stihl BR500 BR550 BR600 BR700","description":"\u003cp\u003eA 50mm piston and seal kit for the Stihl BR500, BR550, BR600 and BR700 backpack blowers. The kit contains a 50mm piston with ring set, wrist pin and circlips, two crankshaft seals, the exhaust gasket, the valve cover gasket, a copper washer and a feeler gauge. Valves and crankshaft bearings are not included. It replaces piston kit 4282-030-2003, two crankshaft seals 9639-003-1585, exhaust gasket 4282-149-0600 and valve cover gasket 4282-029-0500. It does not fit the BR800 family, which takes piston 4283-030-2003, or the two-stroke BR340, BR380 and BR420. The seals go in with the piston because a hardened crankshaft seal pulls in air and runs the engine lean, which is the most common way a new piston gets scored. Before installing, check for other air leaks and fuel faults, use a ring compressor, and set the valve clearance with the feeler gauge to the service manual figure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePISTON, SEALS AND GASKETS - A 50mm piston with ring set, wrist pin and circlips, two crankshaft seals, the exhaust gasket, the valve cover gasket, a copper washer and a feeler gauge. Valves and crankshaft bearings are not included.\u003c\/li\u003e\n\u003cli\u003eFITS STIHL BR500, BR550, BR600 AND BR700 - The 64.8cc four-stroke backpack blowers with the 50mm bore. Not for the BR800 family, which takes piston 4283-030-2003, or for two-stroke blowers such as the BR340, BR380 and BR420.\u003c\/li\u003e\n\u003cli\u003eREPLACES PISTON KIT 4282-030-2003 - With two crankshaft seals 9639-003-1585, exhaust gasket 4282-149-0600 and valve cover gasket 4282-029-0500. If your parts list shows these numbers, this kit covers them.\u003c\/li\u003e\n\u003cli\u003eNEW SEALS WITH THE PISTON - On an older blower the crankshaft seals are usually hard. A leaking seal pulls in air, runs the engine lean and scores the new piston, so they go in together.\u003c\/li\u003e\n\u003cli\u003eBEFORE IT GOES TOGETHER - Find out why the old piston failed: an air leak at a hardened seal or intake boot, a blocked fuel filter or the wrong fuel mix will score a new one. Use a ring compressor and set the valve clearance to the service manual figure.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lil Red Barn","offers":[{"title":"Default Title","offer_id":68073134489754,"sku":"4H-FAOL-J0WJ","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0397\/2346\/6909\/files\/61maomiW_XL.jpg?v=1793962052","url":"https:\/\/performancesawsupply.com\/products\/50mm-piston-and-seal-kit-fits-stihl-br500-br550-br600-br700-4h-faol-j0wj","provider":"Performance Saw Supply","version":"1.0","type":"link"}