Home Engine Systems Fuel System Fuel Hoses Silverado 4000 Fuel Line (Series No. 337) – Type B1 (Inside Diameter 1/4”, Length 50’) Shields Silverado 4000 Fuel Line (Series No. 337) – Type B1 (Inside Diameter 1/4”, Length 50’) $130.29 Silverado 4000 Fuel Line (Series No. 337) – Type B1 (Inside Diameter 1/4”, Length 50’) quantity Add to cart