{"product_id":"mercedes-benz-cl550-cls550-e550-gl450-gl550-ml550-s550-sl550-piston-set-of-8","title":"Mercedes-Benz M278 4.7L V8 Piston Set of 8 A2780302317 S550 E550 GL550 2011-2020","description":"\u003cp\u003e\u003cstrong\u003eMercedes-Benz M278 4.7L V8 Piston Set of 8, A2780302317\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a set of 8 pistons, part number A2780302317, for the Mercedes-Benz M278 4.7L biturbo V8 engine, covering one complete engine (8 cylinders). It fits S550, E550 and GL550 models, among others, model years 2011-2020.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuick Facts:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Engine piston set, 8 pieces (one engine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e A2780302317 (also written A 278 030 23 17 and 2780302317)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e M278 4.7L (4663cc) twin-turbo V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Diameter:\u003c\/strong\u003e 92.9 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Diameter:\u003c\/strong\u003e 24 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Mercedes-Benz S550, E550, GL550 and other M278 4.7L models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Years:\u003c\/strong\u003e 2011-2020\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Compatibility (M278 4.7L V8):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercedes-Benz S550: 2012-2017\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz E550: 2012-2014\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz GL550: 2013-2016\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz GLS550: 2017-2019\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz CL550: 2011-2014\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz CLS550: 2012-2018\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz SL550: 2013-2020\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz ML550: 2012-2014\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eConfirm the M278 engine code and VIN before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen Pistons Are Replaced:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePistons are replaced during an engine rebuild or when the cylinders, pistons or rings are damaged. Typical reasons include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcessive oil consumption from worn pistons, rings or bores\u003c\/li\u003e\n\u003cli\u003eScored or damaged cylinder walls and pistons\u003c\/li\u003e\n\u003cli\u003eLoss of compression\u003c\/li\u003e\n\u003cli\u003eEngine rebuild after bearing or timing chain failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplace all 8 pistons together as one set\u003c\/li\u003e\n\u003cli\u003eHave cylinder bores measured and honed or machined to suit the piston size\u003c\/li\u003e\n\u003cli\u003eConfirm piston size grade (standard or oversize) before machining\u003c\/li\u003e\n\u003cli\u003eFit new rings, gaskets and bearings during the rebuild\u003c\/li\u003e\n\u003cli\u003eProfessional engine builder installation required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Mercedes models use piston A2780302317?\u003c\/strong\u003e\u003cbr\u003eIt is used in M278 4.7L V8 engines, including the S550 (2012-2017), E550 (2012-2014) and GL550 (2013-2016), as well as the GLS550, CL550, CLS550, SL550 and ML550.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many pistons are in this set?\u003c\/strong\u003e\u003cbr\u003eThe set contains 8 pistons, enough to rebuild one complete M278 V8 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat engine is this piston for?\u003c\/strong\u003e\u003cbr\u003eIt is for the Mercedes-Benz M278 4.7L (4663cc) twin-turbo V8.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size are the pistons?\u003c\/strong\u003e\u003cbr\u003eThe piston diameter is 92.9 mm with a 24 mm wrist pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace just one piston?\u003c\/strong\u003e\u003cbr\u003eYou can, but rebuilds normally replace all 8 together so every cylinder has matching weight and size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere does this part ship from?\u003c\/strong\u003e\u003cbr\u003eEuroparts360 ships from warehouses in Dubai (UAE) and Delaware (USA) and delivers worldwide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Reference:\u003c\/strong\u003e A2780302317, A 278 030 23 17, 278-030-23-17-64\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout Europarts360:\u003c\/strong\u003e Europarts360 supplies parts for European luxury and performance vehicles, shipping worldwide  \u003c\/p\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":50137380389154,"sku":"A2780302317","price":648.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/3957\/1746\/files\/048-35.webp?v=1779100309","url":"https:\/\/europarts360.com\/en-uk\/products\/mercedes-benz-cl550-cls550-e550-gl450-gl550-ml550-s550-sl550-piston-set-of-8","provider":"Europarts360","version":"1.0","type":"link"}