Genuine Mikuni Carburetor Rebuild Kits contain an assortment of critical parts which may include gaskets, diaphragms, seals, hardware and more. This kit contains parts needed to rebuild one Mikuni TM40 Carburetor for Arctic Cat and Polaris Snowmobiles with a 1.8 Float Valve.

*NOTE: Some 2004 and 2005 Polaris snowmobiles had a mid-year carburetor change.

Mikuni Carburetors with 1.5 float valve assembly (Polaris OEM Part 3130859) use Mikuni Rebuild kit MK-TM38-SM-1
Mikuni Carburetors with 1.8 float valve assembly (Polaris OEM Part 3131231) use Mikuni Rebuild kit MK-TM40-SM-1