Description
Repair, installation, and use context
Evaluate Mikuni KHS-004 40mm Rubber Flange Adapter For Harley-Davidson Spigot-Type Carbs in the context of a Spacers & Adapters repair, installation, or use case. The source application detail is: Category: Replacement Parts / Fuel System / Carburetors & Parts / Spacers & Adapters.
Plan access, tools, and surrounding components around this supporting source detail: Mikuni rubber mounting flange origionally made for mounting HS40 carbs to Mikuni Harley Davidson manifolds but also has numerous general applications where the heavy duty construction has its advantages. For carbs with 43mm spigots and mounting to studs with 70-75mm stud centre to centre measurements. Confirm this final recorded point before work begins: Mikuni Rubber flange for mounting HS40 to Mikuni Shovelhead or other Harley Davidson 2 bolt manifolds.
Job-planning boundary
The page preserves the supplied facts but does not infer an unlisted vehicle, installation method, or repair result.
Complete source-backed product details
Mikuni rubber mounting flange origionally made for mounting HS40 carbs to Mikuni Harley Davidson manifolds but also has numerous general applications where the heavy duty construction has its advantages. For carbs with 43mm spigots and mounting to studs with 70-75mm stud centre to centre measurements.
Source product highlights
About this item
- Mikuni Rubber flange for mounting HS40 to Mikuni Shovelhead or other Harley Davidson 2 bolt manifolds




Worth –
ethanol in gas suspect in this part failing within 6 months. bulged out and will not seal/hold carb in place.
cp –
says mikuni on the listing, on the invoice but on the product? Nope, made in taiwan. seems to be good item but the brand is a bit misleading.Super well packaged, arrived on time.