YX 150/160 oil cooler bypass Not Z155
Bolts on where oil cooler take off is on crank cases alowwing oil to still circulate.
2 x 8mm banjo bolts
4 x Alloy washers
Hole centers 22mm
banjo thickness 10.6mm
Please note: Zongshen comes with different hole centers so check yours before ordering! see part number 1899 for Z155