{"product_id":"ktm-50-senior-adventure-2002-2007-39-5mm-air-cooled-cylinder-piston-kit-00819-eng","title":"KTM 50 Senior Adventure 2002-2007 39.5mm Cylinder Piston Head Kit","description":"\u003ch2\u003eKTM 50 Senior Adventure 2002-2007 39.5mm Cylinder Piston Head Kit\u003c\/h2\u003e\n\n\u003cp\u003eBrand new aftermarket complete top-end rebuild kit for the \u003cstrong\u003eKTM 50 Senior Adventure 2002-2007\u003c\/strong\u003e air-cooled 50cc two-stroke engine.\u003c\/p\u003e\n\n\u003cp\u003eThe kit uses the KTM 39.5 mm air-cooled cylinder pattern and includes the finned cylinder barrel, finned cylinder head, piston, piston ring, wrist pin, needle bearing, circlips and matching top-end gaskets.\u003c\/p\u003e\n\n\u003ch3\u003eDirect Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKTM 50 Senior Adventure - 2002-2007\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDirect-fit application for the KTM 50 Senior Adventure air-cooled engine family.\u003c\/p\u003e\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x air-cooled cylinder barrel\u003c\/li\u003e\n\u003cli\u003e1 x finned cylinder head\u003c\/li\u003e\n\u003cli\u003e1 x 39.5 mm piston\u003c\/li\u003e\n\u003cli\u003e1 x piston ring\u003c\/li\u003e\n\u003cli\u003e1 x 12 mm wrist \/ gudgeon pin\u003c\/li\u003e\n\u003cli\u003e1 x small-end needle bearing\u003c\/li\u003e\n\u003cli\u003e2 x piston-pin circlips\u003c\/li\u003e\n\u003cli\u003e1 x cylinder-head gasket\u003c\/li\u003e\n\u003cli\u003e1 x cylinder-base gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngine type: 50cc single-cylinder 2-stroke\u003c\/li\u003e\n\u003cli\u003eCooling: Air cooled\u003c\/li\u003e\n\u003cli\u003eStandard bore: 39.5 mm\u003c\/li\u003e\n\u003cli\u003ePiston-pin diameter: 12 mm\u003c\/li\u003e\n\u003cli\u003eComparable wrist-pin size: approximately 12 x 31 mm\u003c\/li\u003e\n\u003cli\u003eComparable cylinder body height: approximately 59 mm\u003c\/li\u003e\n\u003cli\u003eConstruction: Finned cylinder and cylinder head\u003c\/li\u003e\n\u003cli\u003eListed Shopify shipping weight: 3.0 kg\u003c\/li\u003e\n\u003cli\u003eSKU: 00819-ENG\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKTM OE \/ OEM Reference Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e45130505000 A - Cylinder 39.5 mm A\u003c\/li\u003e\n\u003cli\u003e45130505000 B - Cylinder 39.5 mm B\u003c\/li\u003e\n\u003cli\u003e45130505000 C - Cylinder 39.5 mm C\u003c\/li\u003e\n\u003cli\u003e45130538000 - Cylinder \u0026amp; piston kit supersession\u003c\/li\u003e\n\u003cli\u003e45130506000 - Cylinder head 50 AC 2002\u003c\/li\u003e\n\u003cli\u003e45130506100 - Cylinder head 50 GS 2002\u003c\/li\u003e\n\u003cli\u003e45130537000 - Cylinder-head gasket 50 AC\u003c\/li\u003e\n\u003cli\u003e46030035020 - 0.2 mm cylinder-base gasket\u003c\/li\u003e\n\u003cli\u003e46030035050 - 0.5 mm cylinder-base gasket\u003c\/li\u003e\n\u003cli\u003e45130599000 - Complete gasket set 50 AC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Engine Identification\u003c\/h3\u003e\n\u003cp\u003eThis kit is for the \u003cstrong\u003eair-cooled KTM 50 Adventure engine family\u003c\/strong\u003e. It is not intended for the liquid-cooled KTM 50 SX \/ SX Mini \/ Pro Junior \/ Pro Senior engines, which use a different cylinder system.\u003c\/p\u003e\n\n\u003cp\u003eIt is also not intended for 2001-and-earlier KTM 50 models fitted with the earlier black Morini Franco engine.\u003c\/p\u003e\n\n\u003ch3\u003eFitment Check\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, compare the original cylinder, cylinder-head cooling fins, 39.5 mm bore, 12 mm piston pin, exhaust outlet, inlet\/reed opening, mounting-stud layout and gasket profiles with the product photographs and the engine currently fitted.\u003c\/p\u003e\n\n\u003ch3\u003eWhen This Kit May Be Required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLow compression\u003c\/li\u003e\n\u003cli\u003ePiston seizure or scoring\u003c\/li\u003e\n\u003cli\u003eDamaged cylinder bore\u003c\/li\u003e\n\u003cli\u003eBroken or worn piston ring\u003c\/li\u003e\n\u003cli\u003eTop-end noise or loss of performance\u003c\/li\u003e\n\u003cli\u003eEngine restoration or complete top-end rebuild\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eCorrect piston orientation, ring location, small-end bearing lubrication, gasket selection, cylinder-base clearance and cylinder-head tightening are essential. Check the crankshaft, connecting rod and small-end bearing condition before rebuilding the top end. Professional installation is recommended.\u003c\/p\u003e\n\n\u003ch3\u003eSearch Terms\u003c\/h3\u003e\n\u003cp\u003eKTM 50 Adventure cylinder kit, KTM 50 Mini Adventure piston kit, KTM 50 Junior Adventure cylinder, KTM 50 Senior Adventure cylinder, 45130505000, 45130538000, 39.5mm KTM piston, KTM 50 air cooled top end kit, KTM 50 engine rebuild kit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new aftermarket replacement. OE numbers are supplied for identification and compatibility comparison only; this product is not represented as a genuine KTM component.\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":57739079909751,"sku":"00819-ENG","price":58.0,"currency_code":"SHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/8771\/6007\/files\/20261024_151814.jpg?v=1794303415","url":"https:\/\/www.motomaniauk.com\/products\/ktm-50-senior-adventure-2002-2007-39-5mm-air-cooled-cylinder-piston-kit-00819-eng","provider":"Moto Mania UK","version":"1.0","type":"link"}