Parts for Caterpillar 3406B for Canada - Fuel Filter Section Loading... 1 Primary Fuel Filter for Caterpillar 3406 engines Primary Fuel Filter Price: $ 24.08 Qty: ^ Pictures In Stock Add to Cart 2 Fuel Filter for Caterpillar 3406, 3408 and 3412 engines For use with Standard ECM Price: $ 32.30 Qty: ^ Details In Stock Add to Cart 3 Fuel Filter Removal Wrench for Detroit Diesel & Cummins 3-7/16" to 3-3/4" Price: $ 13.51 Qty: ^ Details In Stock Add to Cart