×
Description
4128 141 8000 STIHL Screw Plug – Genuine OEM Part
The STIHL Screw Plug (4128 141 8000) is a genuine OEM replacement sealing component designed for use in the air filter, fuel tank, ignition system, and machine cover assemblies of various STIHL blowers, sprayers, multi-purpose units, and iMOW robotic mowers. This screw plug helps seal openings and protect internal components from dirt, debris, and moisture.
Manufactured to STIHL’s exact specifications, this OEM screw plug ensures proper fitment, reliable sealing performance, and long-lasting durability when replacing missing or damaged plugs.
Product Details
-
OEM Part Number: 4128 141 8000
-
Brand: STIHL (OEM)
-
Part Type: Screw Plug
-
Application: Air Filter / Fuel Tank / Ignition System / Machine Cover
-
Condition: New Genuine OEM Part
Function
This screw plug is designed to:
-
Seal and secure access openings in equipment housings
-
Protect internal components from dirt and moisture
-
Support proper function of air filter and ignition assemblies
-
Replace worn, missing, or damaged screw plugs
-
Maintain equipment integrity and safe operation
⚠️ A missing screw plug may allow contamination or moisture intrusion, leading to performance issues.
Verify Fitment in 30 Seconds
Before ordering, confirm the following:
-
OEM part number 4128 141 8000
-
Part location: air filter, fuel tank, ignition system, or machine cover
-
Compatible STIHL model listed below
⚠️ Always verify fitment by OEM part number for best accuracy.
Compatibility
Fits STIHL equipment including:
Yard Boss / Multi-Purpose Units
-
MM 55 (Air filter, Fuel tank)
-
MM 55 C-E (Air filter, Fuel tank)
Backpack Blowers
-
BR 340 (Air filter, Ignition system)
-
BR 380 (Air filter, Ignition system)
-
BR 420 (Air filter, Ignition system)
-
BR 420 C (Air filter, Ignition system)
Sprayers / Mistblowers
-
SR 420 (Air filter, Ignition system)
Brushcutters
-
FS 450-K (Carburetor housing, Air filter)
iMOW Robotic Mowers (Machine Cover Applications)
-
iMOW 4.0
-
iMOW 5.0
-
iMOW 5.0 EVO
-
iMOW 6.0 EVO
-
iMOW 6.0 EVO 4"
-
iMOW 7.0
-
iMOW 7.0 EVO
-
iMOW 7.0 EVO 4"
-
iMOW 7.0 PRO
⚠️ This list includes common applications — always confirm using your parts diagram or owner’s manual.
Installation / Usage
-
Turn off engine or remove battery before servicing
-
Locate the screw plug in the appropriate housing or cover
-
Remove the damaged or missing plug carefully
-
Install the new STIHL OEM screw plug securely
-
Ensure proper sealing and tight fit before operation
Maintenance Tips
-
Inspect plugs and seals regularly for wear or cracking
-
Replace missing plugs immediately to prevent contamination
-
Keep equipment housings clean and dry
-
Store units properly to reduce moisture exposure
-
Use only genuine STIHL replacement parts for best fit and reliability
