Weld-on sleeve with sealing ring and screw plug for the exhaust on your moped, moped or small motorcycle, as well as for Piaggio Vespa scooters or scooters and any other combustion engine, to measure the air oxygen content.
The welding plug can be welded on using any common welding process.
Note: We recommend leaving the screw fitted during the fusion process and not removing it during the cooling process, as the thread could otherwise become distorted.
| Material | Chrome steel (colloquially known as stainless steel), Brass |
| Ø outside | 26 mm |
| Ø inside | 16.7 mm |
| Total length | 21.5 mm |
| Ø External connection | 26 mm |
| Thread type | M18x1.5 (standard thread) |
| Ø mounting hole | 20 mm |
| Thread length | 10 mm |
Explore categories from Tools
Moped fans also bought
GPO fork lock | Puch
Material: Brass · Manufacturer: GPO · Material: Spring steel · Material: Steel · Total length: 40.8 mm · Ø rotating part: 12 mm · Wide locking block: 4.1 mm · Locking block length: 15.3 mm · Ø outside: 12 mm · Ø Pin: 8 mm · Length of turned part: 25.6 mm · Width: 17 mm
EUR 12.90
Hot 
Dell'Orto 13/13 SHA carburetor hand choke | Piaggio Ciao PX / C24, Bravo, SUPERbravo
Material: Aluminum · Manufacturer: Dell'Orto · Nominal diameter: 13 mm · Component group Carburetor: Carburetor complete · Carburetor type: SHA (Piaggio) · Color: black · Nozzle thread: M5x0.8 (standard thread) · Ø without reducing sleeve: 18 mm · Nozzle size: 66 · Ø Inside entrance: 13 mm · Ø Internal connection: 16 mm · Ø Output inside: 13 mm · Ø Air filter connection: 50.8 mm · Height: 96 mm · Ø fuel hose connection: 5.2 mm · Ø fuel hose connection: 6 mm · Total length: 46 mm · Mixed oil connection: No · Mounting type: Plug connection clamped · Width: 60 mm · Vacuum connection: No · Choke control: Hand choke · Camouflaged: No · Area of application: Tuning
EUR 73.40
Malossi cylinder head for 41 - 43 mm cylinder kit | Piaggio Ciao, SI, Bravo, Boxer
Material: Aluminum · Manufacturer: Malossi · Surface: sandblasted · Ø cylinder: 41 - 43 mm · Candle thread: long · Height: 60 mm · Total length: 122 mm · Width: 87 mm · Number of fixing points: 3 pcs · Hole pattern [mm]: 35 x 55 · Decompressor: Yes · Camouflaged: No · Area of application: Racing
EUR 89.40
Malossi 43 mm cylinder kit 10 mm KoBo new version | Piaggio Ciao, SI, Bravo, Boxer
Material: Gray cast iron · Manufacturer: Malossi · Surface: sandblasted · Nominal diameter: 43 mm · Displacement: 63 ccm · Crankshaft stroke: 43 mm · Ø cylinder neck: 45.6 mm · Ø Outlet outside: 22.5 mm · Ø outlet inside: 18.3 mm · Ø piston pin (B): 10 mm · Outlet type: clamped · Number of fixing points: 3 pcs · Hole pattern [mm]: 55 x 34 · Decompressor: Yes · Camouflaged: No · Area of application: Tuning
EUR 177.60
Polini air filter | Piaggio Ciao, SI, Bravo, Boxer
Material: Plastic · Manufacturer: Polini · Filter type: Foam · Color: black · Ø outside: 53 mm · Ø Internal connection: 50.6 mm · Height: 94.7 mm · Total length: 29 mm · Mounting type: Plug connection clamped · Width: 98 mm · Camouflaged: No · Area of application: Tuning
EUR 18.30
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
