NAMURA NA-40015K TOP END KIT 70.95/STD 11:1 YAM
Manufacturer Part Number: NA-40015K
WPS Part Number: 186-4015
Product Type: Piston kits & Components
Features
- Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit
- MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures
- Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%
- Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons
- Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures
Verified Vehicle Fitment
- 1992 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1993 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1994 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1995 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1996 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1997 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1998 Yamaha YFB250 Timberwolf 2WD [SRA]
- 1994 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 1995 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 1996 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 1997 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 1998 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 1999 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 2000 Yamaha YFB250FW Timberwolf 4WD [SRA]
- 2007 Yamaha YFM250B Big Bear [SRA]
- 2008 Yamaha YFM250B Big Bear [SRA]
- 2009 Yamaha YFM250B Big Bear [SRA]
- 2005 Yamaha YFM250B Bruin 2WD [SRA]
- 2006 Yamaha YFM250B Bruin 2WD [SRA]
- 1999 Yamaha YFM250X Bear Tracker 2WD [SRA]
- 2000 Yamaha YFM250X Bear Tracker 2WD [SRA]
- 2001 Yamaha YFM250X Bear Tracker 2WD [SRA]
- 2002 Yamaha YFM250X Bear Tracker 2WD [SRA]
- 2003 Yamaha YFM250X Bear Tracker 2WD [SRA]
- 2004 Yamaha YFM250X Bear Tracker 2WD [SRA]
Yes
