This is a genuine Homelite New Old Stock (NOS) welch plug cap, part number 01212-57.
Welch plugs are press-in caps used to seal internal passages inside carburetors. This part was commonly installed on various Homelite carburetors, rather than being specific to a single chainsaw or trimmer model.
Homelite frequently reused the same welch plugs across multiple carburetor types, which is why official manuals often list this part simply as a carburetor component without model-specific fitment.
This plug is typically found on Tillotson and some Walbro carburetors used on vintage Homelite chainsaws and trimmers.
⚠️ Fitment varies by carburetor model.
Please compare this part to your original welch plug before ordering........
✅ Condition
New Old Stock (NOS)
Genuine Homelite OEM part
Never installed
Original vintage stock
✅ Specifications
Brand: Homelite
Part Number: 01212-57
Type: Carburetor Welch Plug Cap
Material: Metal (press-fit)
Application: Seals internal carburetor passages
✅ Fitment (Correct + Safe Wording)
Fits various Homelite carburetors
Commonly used on Tillotson diaphragm carburetors (HK / HL / HS series)
Some applications on Walbro carburetors
Used on vintage Homelite chainsaws and trimmers
✔️ Carburetor model determines fit — not saw model