Novarossi O-Ring Kit for Carburetor (P5/421B/Plus 21-5/T21BF/BS-21SB/528X)
This is a replacement O-ring set for the Novorossi family of .21 engines, including the P5, 421B, T21BF, BS-21SB and the Novarossi 528XR and 528XS. This will work with any Novarossi brand engine including the Top and Rex lines. This O-ring set comes with a replacement slide carb boot, along with a number of high and low speed O-rings for the needle assembly.
This product was added to our catalog on June 17, 2004.