Makes
- D1
- D'elegant1
- DDT1
- DEAN10
- DEI1
- DEPO8
- DICO1
- DJG2
- DMC1
- DOPE1
- DPD1
- DRAG2
- DRI1
- DRV13
- DSR1
- DURA1
- Dabryan8
- Daewoo12
- Daewoo Puerto Rico7
- Daihatsu3
- Daimler2
- Daimlerchrysler4
- Dairy Equipment1
- Dakota Grain1
- Dakota Mfg3
- Dakota Side Dump1
- Dalewood1
- Damon39
- Dana35
- Dana Spicer4
- Danubiana1
- Darley1
- Datsun1
- Davinci1
- Davis1
- Daybrook Ottawa1
- Daylights1
- Daystar1
- Dayton7
- Dayton Walther1
- Daytona4
- Dealerleather2
- Decked1
- Dejana1
- Del-Nat5
- Delco1
- Delco Trailers2
- Delinte1
- Delorean3
- Delphi3
- Delphi Aftermarket1
- Delta13
- Demers5
- Demers Ambulances6
- Dempster1
- Demster Dumster1
- Denago Ev1
- Denman4
- Dennis Eagle13
- Denso2
- Derbi1
- Desert Fox2
- Designer 221
- Designtech1
- Destiny1
- Detomaso3
- Detroit3
- Detroit Diesel15
- Dexter12
- Dexter Axle5
- Dexter Axle Co1
- Dextero1
- Di Giorgie1
- Diamo1
- Diamond C Trailers2
- Diamond Coach20
- Diamond Coach Transit1
- Diamond Reo24
- Diamond Star1
- Diamond-Black1
- Diamondback3
- Dick Cepek3
- Dill-Acp1
- Dimplex1
- Diode Dynamics1
- Diono2
- Diplomat1
- Direct Line1
- Discount Tire1
- Discover Canada1
- Discoverer A/T1
- Discoverer H/T1
- Disney Baby1
- Ditch Witch12
- Dixie1
- Dodge882
- Dodgen7
- Doepker2
- Doing Industry1
- Dolphin3
- Dometic10
- Dominator1
- Doolittle1
- Doonan1
- Doosan2
- Doosan Portable Power4
- Doral1
- Doran1
- Dorel4
- Dorman13
- Dorsey18
- Double B Trailers1
- Double D1
- Double Duty2
- Double K7
- Double R Trailers1
- Double Tree4
- Douglas1
- Dover1
- Dow Corning1
- Downunder1
- Drag Specialties2
- Dragon1
- Drake1
- Drake Automotive1
- Draw Tite4
- Dream Shak1
- Dressen1
- Drexel1
- Drive Line1
- Driverge2
- Dry Launch1
- Ducati101
- Ducati Performance1
- Dunlop29
- Duotherm1
- Duplex Chassis1
- Duralast6
- Duralast Gold1
- Duralon2
- Durango1
- Duraturn1
- Durham1
- Duruxx1
- Duster1
- Dutchmen71
- Dygert1
- Dynamax22
- Dynamic1
- Dynamic Tire1
- Dynasys1
- Dynatrail1
- Dynatron1
- Dyneer1