{"product_id":"kit-complet-3-pistons-sea-doo-1503-4-tec-std-ou-05-mm-segments-axes-circlips","title":"Complete 3-piston kit Sea-Doo 1503 4-TEC – STD or +0.5 mm – Rings, pins and circlips","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp style=\"text-align: justify;\"\u003eThis \u003cstrong\u003ecomplete 3-piston kit for the supercharged Sea-Doo Rotax 1503 4-TEC\u003c\/strong\u003e includes \u003cstrong\u003ethree pistons, their rings, the pins, and the circlips\u003c\/strong\u003e for rebuilding all three cylinders. Two versions are available: \u003cstrong\u003estandard size (STD)\u003c\/strong\u003e or \u003cstrong\u003eoversize +0.5 mm\u003c\/strong\u003e. Each version contains a complete kit for three cylinders, not a single piston.\u003c\/p\u003e\u003cp style=\"text-align: justify;\"\u003eDesigned for the 215, 255, and 260 hp applications specified below, this set is used when rebuilding or replacing damaged pistons after inspecting the cylinders. OEM part number \u003cstrong\u003e420890244\u003c\/strong\u003e is specified for the standard version; the corresponding part number for the +0.5 mm version is yet to be confirmed.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eOEM part number:\u003c\/strong\u003e \u003cstrong\u003e420890244\u003c\/strong\u003e for the standard size; OEM part number for the +0.5 mm size is not confirmed.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e not provided.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eType:\u003c\/strong\u003e complete 3-piston replacement kit for the supercharged Rotax 1503 4-TEC.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e STD or +0.5 mm, depending on the version selected.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eApplicable power ratings:\u003c\/strong\u003e 215 \/ 255 \/ 260 hp, depending on the model.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCondition:\u003c\/strong\u003e new.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e 3 pistons with their rings, pins, and circlips in each version.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eWeight:\u003c\/strong\u003e previously stated value of 650 g; total kit weight to be confirmed.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eRegulated substances:\u003c\/strong\u003e none reported in the data sheet.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e by a qualified mechanic after measuring the bore, checking the clearances, and verifying the assembly specifications.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp style=\"text-align: justify;\"\u003eDeclared applications for \u003cstrong\u003e215, 255, and 260 hp supercharged Rotax 1503 4-TEC engines\u003c\/strong\u003e. The STD or +0.5 mm size must be chosen after measuring the cylinders. Model compatibility alone does not confirm the correct size for installation.\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003e2007: \u003cstrong\u003eGTX 215 Wake\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e2008: \u003cstrong\u003eGTX 215, GTX 215 Limited, GTX 215 Wake\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e2009: \u003cstrong\u003eGTX 215, GTX 255 Limited iS\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e2010: \u003cstrong\u003eGTX 215 iS\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e2011: \u003cstrong\u003eGTX 215, GTX 215 iS\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e2012–2013: \u003cstrong\u003eGTR 215, GTX 215\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e2014–2015: \u003cstrong\u003eGTR 215, GTX 215 Limited, GTX 260 Limited iS\u003c\/strong\u003e.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eRXP and RXT\u003c\/strong\u003e equipped with the 215\/255\/260 hp Rotax 1503 4-TEC: model year and part number to be confirmed by VIN.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp style=\"text-align: justify;\"\u003eOther declared applications: \u003cstrong\u003eWilliams 400, 435, 460, and 520 Sportjet with Rotax 1503 engine\u003c\/strong\u003e, subject to verification of the engine version, piston part number, and required size. These applications should not be confused with Rotax 903 or 1630 versions.\u003c\/p\u003e\u003cp style=\"text-align: justify;\"\u003e\u003cem\u003e⚠️ Always check your serial number (VIN) and the original OEM part number before ordering to confirm exact compatibility with your model.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eWhy Replace Pistons and Their Rings?\u003c\/h2\u003e\u003cp style=\"text-align: justify;\"\u003eWorn or damaged pistons or rings can cause a loss of compression, abnormal oil consumption, and cylinder deterioration. The cause of overheating or lubrication failure must be investigated before reassembly.\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003eLoss of compression or uneven values between cylinders.\u003c\/li\u003e\n\n\u003cli\u003eLoss of power or difficult starting.\u003c\/li\u003e\n\n\u003cli\u003eBlue smoke and excessive oil consumption.\u003c\/li\u003e\n\n\u003cli\u003eScratched pistons, broken rings, or damaged ring grooves upon disassembly.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp style=\"text-align: justify;\"\u003eDuring a rebuild, have the cylinders measured and their wear limits checked before selecting the size. Replacement depends on the condition of the engine and the manufacturer's specifications, not a fixed 50-hour interval.\u003c\/p\u003e\u003ch2\u003eSee Also – Other Compatible Parts\u003c\/h2\u003e\u003cp style=\"text-align: justify;\"\u003eThese parts have common applications, particularly on RXT 215 models with Rotax 1503 engines. Check the specific restrictions for each product.\u003c\/p\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\n\u003ctd width=\"50%\"\u003e\n\n\u003ca href=\"\/en\/products\/kit-joint-moteur-complet-sea-doo-4-tec-1503-rxp-rxt-gtx-gts-gti-130-rebuild-gasket-kit\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0982\/5379\/9754\/files\/S46eda04f0e9740c98545e75c5f630d6cN.webp?v=1785350397\" alt=\"Complete Sea-Doo 1503 Engine Gasket Kit\" style=\"width:100%;max-width:220px;border-radius:6px;\"\u003e\u003c\/a\u003e\u003cp style=\"text-align: justify;\"\u003e\u003ca href=\"\/en\/products\/kit-joint-moteur-complet-sea-doo-4-tec-1503-rxp-rxt-gtx-gts-gti-130-rebuild-gasket-kit\"\u003e\u003cstrong\u003eComplete Sea-Doo 1503 4-TEC Engine Gasket Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\n\u003c\/td\u003e\n\n\u003ctd width=\"50%\"\u003e\n\n\u003ca href=\"\/en\/products\/seadoo-and-williams-starter-solenoid-relay-278000513-278002347-278001802-278000513-278001766\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0982\/5379\/9754\/files\/Starter_relay-_Relais_demarreur_WILLIAMS_02-1108.webp?v=1778010678\" alt=\"Sea-Doo Williams Starter Relay\" style=\"width:100%;max-width:220px;border-radius:6px;\"\u003e\u003c\/a\u003e\u003cp style=\"text-align: justify;\"\u003e\u003ca href=\"\/en\/products\/seadoo-and-williams-starter-solenoid-relay-278000513-278002347-278001802-278000513-278001766\"\u003e\u003cstrong\u003eSea-Doo and Williams Starter Solenoid Relay – 278000513\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"ROTAX tender parts","offers":[{"title":"Standard Rating","offer_id":63625868509514,"sku":"14:173#Standard size;200007763:201336100","price":499.9,"currency_code":"EUR","in_stock":true},{"title":"Dimension +0.5mm","offer_id":63625868542282,"sku":"14:29#0.5 big bore;200007763:201336100","price":499.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/5379\/9754\/files\/Kit_piston_ring_SEADOO_420890244_420892735.png?v=1790024254","url":"https:\/\/rotaxtenderparts.com\/en\/products\/kit-complet-3-pistons-sea-doo-1503-4-tec-std-ou-05-mm-segments-axes-circlips","provider":"ROTAX tender parts","version":"1.0","type":"link"}