the AX34816XP filter fits with GRAINGER
                                                                            the AX34816 filter fits with Freightliner, Kenworth, Peterbilt, Western Star Trucks
                                                                                                                        the AX34807 filter fits with GRAINGER
                                                                                                                        the AX34806 filter fits with NAPA GOLD
                                                                                                                        the AX34804 filter fits with GRAINGER
                                                                                                                        the AX34803 filter fits with MITSUBISHI