Heater Box J-Tubes | 55-3357

J-Tubes replace stock heater boxes, eliminating heater and saving weight. Fits most standard extractors. Fits all Type 1 & 2 upright engines. Complete with Gaskets. Sold in pairs. 3357 and 3657 are 1 1/2" tubing. 3422 is 1 5/8" tubing.