{"product_id":"wacker-neuson-cylinder-head-5100038533-for-portable-generators-rollers","title":"Wacker Neuson Cylinder Head 5100038533 for Portable Generators, Rollers","description":"\u003cp\u003eThis cylinder head (part number 5100038533) is the complete cylinder head assembly for Wacker Neuson GPS9700A portable generators and RD12A-90 rollers, sealing the combustion chamber and housing the intake and exhaust valve passages on these Honda-powered machines.\u003c\/p\u003e\n\n\u003cp\u003eOn the RD12A-90 roller, this cylinder head mates to the Honda GX630 engine, a 4-stroke, 2-cylinder, air-cooled unit producing 15.1 kW (20.3 hp) at 3,600 rpm with a 688 cc displacement. Correct valve clearance on this engine is 0.10 to 0.16 mm (0.004 to 0.006 inch) for both intake and exhaust valves, measured cold. When replacing this cylinder head, restoring valve clearance to specification is required before returning the machine to service. The spark plug used is an NGK ZFR5F with an electrode gap of 0.71 to 0.79 mm (0.028 to 0.031 inch).\u003c\/p\u003e\n\n\u003cp\u003eCommon reasons to replace a cylinder head include warping from overheating, cracked combustion chamber surfaces, stripped spark plug threads, or burnt valves that cause compression loss. Installing a genuine OEM cylinder head ensures proper combustion chamber geometry and correct sealing surface dimensions for the engine gasket set.\u003c\/p\u003e\n\n\u003cp\u003eCompatible models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGPS9700A\u003c\/li\u003e\n\u003cli\u003eRD12A-90\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eGenuine Wacker Neuson OEM part, sold by an authorized dealer.\u003c\/p\u003e","brand":"Wacker Neuson","offers":[{"title":"Default Title","offer_id":43398762037296,"sku":"WACKER-5100038533","price":638.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6574\/7248\/files\/5100038533.jpg?v=1784074512","url":"https:\/\/cce-industries.com\/products\/wacker-neuson-cylinder-head-5100038533-for-portable-generators-rollers","provider":"CCE Industries","version":"1.0","type":"link"}