Description:Made of New replacement Gas Fuel CapO-Ring supplied with it to seal the capOil Cap Gas Fuel Cap Assembly ReplacementFit for Chainsaw 029 039 044 046 050 051 064 066 076 084 088 MS290 MS310 MS390 MS640 MS650 MS660 Specifications:(Approx.)Oil Cap:Thread Dia:33 mm / 1.3 inchCap Height: 23 mm / 0.9 inchTotal Size: 95 x 40 mm (L*D) Gas Fuel Cap:Thread Dia:41 mm / 1.6 inchCap Height: 23 mm / 0.9 inchTotal Size: 115 x 48 mm (L*D) Package Content: 1 set X (Oil Cap+ Gas Fuel Cap) Note: This is non-OEM product !