Fits Weber 40mm DCNF Carburetor Spacer Riser Phenolic Insulator Riser 40 mm 1/2"
This is a 1/2" phenolic carb insulator that fits the 40mm DCNF Weber and are sold individually to help prevent carburetor boiling or heat soak, the cooler it is the more power it makes. Any questions please email or call 608-637-7167