K&N KN171B Oil Filter

K&N Oil Filters are ideal for high-end synthetic motor oil. Synthetic motor oil is said to offer improved flow performance at cold temperatures while providing superior protection against thermal degradation. It is designed for ultimate flow with less pressure drop, yet engineered for outstanding filtration to meet or exceed all OEM specifications. It is originally developed for demanding auto race applications and our premium oil filter is rapidly becoming a favorite among consumers for its durability and easy removal. It is covered by a limited warranty to be free from defects in materials and workmanship when installed and replaced using engine and equipment manufacturers recommended service intervals. K&N oil filters feature a heavy-duty metal can with a 17mm nut affixed onto the end that allows for easy installation and removal. The 17mm nut is crossed-drilled so racers can safety wire the filter to their bike.
Height of the oil filter is 4.055” (103 mm), weight is 0.8 lb (0.4 kg) and its outside diameter is 2.98” (76 mm)
Anti-drainback valve (where applicable) eliminates dry starts, prevents oil from draining back into crankcase during engine shutdown
Internally lubricated gasket provides positive seal while allowing easy on and off of filter
Rolled threads provide extra protection against stripping
Heavy-duty construction