Engine Pistons Set Compatible with Mercedes-Benz W222 W166 W221 CLS500 GL450 ML500 S500 SL500 M278 4.6L 4.7L V8 Part# A2780302317

OE#:278 030 11 17 / 2780301117278 030 15 17 / 2780301517278 030 23 17 / 2780302317278 030 27 17 / 2780302717278 030 01 00 / 2780300100278 030 11 17 / 2780301117278 030 15 17 / 2780301517278 030 23 17 / 2780302317278 030 27 17 / 2780302717278 030 01 00 / 2780300100Replacement OE#:A 278 030 11 17 / A2780301117A 278 030 15 17 / A2780301517A 278 030 23 17 / A2780302317A 278 030 27 17 / A2780302717A 278 030 01 00 / A2780300100A 278 030 11 17 / A2780301117A 278 030 15 17 / A2780301517A 278 030 23 17 / A2780302317A 278 030 27 17 / A2780302717A 278 030 01 00 / A2780300100Size- STD + 0.50mm (Compatible With cylinder expansion)- Cylinder bore 92.9+0.5mm (3.66" / 3.66in.)- Pin Bolt Diameter 24mm- Pin Bolt Length 56mm- Ring Thickness 1st - 1.2mm / 2nd - 1.5mm / 3rd - 2.0mmCar Model& Model Produce Year Model EngineCompatible With MercedesBenz M278 46L 47L V8 (4663cc) TurbochargedCLS500 / CLS550 2012-2018 C218 / M278.922CL500 / CL550 2011-2014 C216 / M278.920E500 / E550 2012-2017 W212 / M278.922GL450 / GL500 / GL550 2013-2015 X166 / M278.928ML500 / ML550 2012-2015 W166 / M278.928GLE500 / GLE550 2016-2019 W166 / M278.928GLS500 / GLS550 2017-2019 X166 / M278.928S500 / S550 2011-2013 W221 / M278.932S500 / S550 2013-2018 W222 / M278.929S500 Coupe 2014-2018 C217 / M278.929SL500 / SL550 2012-2019 R231 / M278.927Package includes1 Set X Pistons1 Set X Piston Rings Origin : Mainland ChinaOEM NO. : A2780302317Hey, my friend! This is the parts and accessories store, there are all kinds of accessories, waiting for you to pick up to match your own items yet, you can contact directly by email if you have any questions! Thank you!

• The friction coefficient between the piston and the piston wall is small, which can reduce the energy loss and improve the engine efficiency
• Dimensional stability: When the temperature changes, the size and shape changes are small, and the gap with the cylinder wall can be maintained at a minimum
• The pin hole of the high-load piston is designed to be a micro inner cone type or a normal stress curved type. The dimensional accuracy of the pin hole is IT4 level, and the contour accuracy is 0.003mm, which improves the bearing capacity
• The piston top and ring groove are designed to facilitate heat transfer and dissipation
• Low noise design: Optimal construction and materials reduce engine noise during operation.