| Kowald | G. W. R. | Katanning | Ford | KA ● 215 | Katanning Road Board | 1926-27 |
| Kowald | G. W. R. | Katanning | Ford | KA ● 215 | Katanning Road Board | 1927-28 |
| Kowald | H. A. | Ewlymartup Broomehill | Ford 19 H. P. | BH ● 14 | Broomehill Road Board | 1922-23 |
| Kowald | H. A. | Ewlymartup, Broomehill | Ford | BH 14 | Broomhill Road Board | 1923 - 1924 |
| Kowald | H. A. | Ewlyamartup Broomehill | Ford | BH ● 14 | Broomehill Road Board | 1924-25 |
| Kowald | H. A. | Katanning | Ford | BH ● 14 | Broomehill Road Board | 1925-26 |
| Kowald | H. A. | Katanning | Ford | BH ● 14 | Broomehill Road Board | 1926-27 |
| Kowald | H. A. | Katanning | Ford | BH ● 14 | Broomehill Road Board | 1927-28 |
| Krakcour | P. | 10 Gill Street, Mount Lawley | Ford | 13031 | Metro Private Car | 1926-27 |
| Krakoner | R. | Kojonup | Ford 20 H.P. | KO 14 | Kojonup Road Board | 1919 |
| Krakouer | P. | 10 Gill Street, Mount Hawthorn | Ford | 13031 | Metro Private Car | 1927-28 |
| Krakouer | R. | Kojonup | Ford 20 H.P. | KO ● 14 | Kojonup Road Board | 1917-18 |
| Krakouer | R. | Kojonup | Buick 6 | KO ● 14 | Kojonup Road Board | 1922-23 |
| Krakouer | R. | Kojonup | Buick | KO ● 14 | Kojonup Road Board | 1923-24 |
| Krakouer | R. | Kojonup | Buick | KO ● 14 | Kojonup Road Board | 1924-25 |
| Krakouer | R. | Kojonup | Buick | KO ● 114 | Kojonup Road Board | 1925-26 |
| Krakouer | R. | Kojonup | Buick | KO ● 114 | Kojonup Road Board | 1926-27 |
| Krakouer | R. | Kojonup | Buick | KO ● 114 | Kojonup Road Board | 1927-28 |
| Kramer | E. H. | Morawa | Oakland | PM ● 25 | Perenjori-Morawa Road Board | 1924-25 |
| Kramer | E. H. | Morowa | Oakland | PM ● 25 | Perenjori-Morawa Road Board | 1925-26 |
| Kramer | E. H. | Morowa | Oakland | PM ● 25 | Perenjori-Morawa Road Board | 1927-28 |
| Kramer | E. H. | Morowa | Chevrolet Truck | PM ● 198 | Perenjori-Morawa Road Board | 1927-28 |
| Kramer | H. W. | East Wagin | Ford | W ● 19 | Wagin Road Board | 1925-26 |
| Kramer | H. W. | East Wagin | Ford | W ● 19 | Wagin Road Board | 1926-27 |
| Kramer | H. W. | East Wagin | Ford | W ● 19 | Wagin Road Board | 1927-28 |
| Kramer | H. W. | Wagin | Erskine | W ● 161 | Wagin Road Board | 1927-28 |
| Kramer | Harry | Wagin | Ford 20 H.P. | W ● 19 | Wagin Road Board | 1917-18 |
| Kramer | Harry | Wagin | Ford 20 H.P. | W ● 19 | Wagin Road Board | 1919 |
| Kramer | Harry | Wagin | Ford 20 H.P. | W ● 19 | Wagin Road Board | 1922-23 |
| Kramer | Harry | Wagin | Ford 20 H.P. | W ● 19 | Wagin Road Board | 1923-24 |
| Kramer | Harry | Wagin | Ford | W ● 19 | Wagin Road Board | 1924-25 |
| Kranestein | - | 227 Brisbane Street, Perth | Ford | 13903 | Metro Private Car | 1927-28 |
| Krasncstein | P. | 368 Lord Street, Perth | Chevrolet Wagon | 13692 | Metro Private Car | 1926-27 |
| Krasnestein | P. | 368 Lord Street, Perth | Chevrolet Wagon | 13692 | Metro Private Car | 1927-28 |
| Krasnostein | - | 227 Brisbane Street, Perth | Ford | 13903 | Metro Private Car | 1926-27 |
| Krasnostein Bros | - | 67 Brewer Street, Perth | Chevrolet Wagon | 8482 | Metro Private Car | 1925-26 |
| Krasnostein Bros | - | 67 Brewer Street, Perth | Chevrolet Wagon | 8482 | Metro Private Car | 1926-27 |
| Krause | J. | Foundry Hotel, Kalgoorlie | Dodge | K ● 39 | Kalgoorlie Road Board | 1925-26 |
| Krause | J. | Foudry Hotel, Kalgoorlie | Dodge | K ● 39 | Kalgoorlie Road Board | 1926-27 |
| Krause | J. A. | Ida H. | Ford 20 H.P. | MG 1 | Mount Margaret Road Board | 1916 |
| Krause | J. A. | Ida H. | Ford 20 H.P. Private Car | MG ● 5 | Mount Magnet Road Board | 1917-18 |
| Krause | J. A. | Ida H. | Studebaker 30 H.P. | MG 7 | Mount Margaret Road Board | 1919 |
| Krause | J. A. | Foundry Hotel | Dodge | K ● 39 | Kalgoorlie Road Board | 1927-28 |
| Krauth | L. F. | Havelock Street, West Perth | Buick | 2413 | Metro Private Car | 1923-24 |
| Krauth | L. F. | Havelock Street, West Perth | Buick | 2413 | Metro Private Car | 1924-25 |
| Krauth | L. F. | Havelock Street, West Perth | Buick | 2413 | Metro Private Car | 1925-26 |
| Krauth | L. F. | 176 Murray Street, Perth | Buick | 9354 | Metro Private Car | 1926-27 |
| Krauth | L. F. | 176 Murray Street, Perth | Buick | 9354 | Metro Private Car | 1927-28 |
| Kregor | D. | Kondut | International Truck | WB ● 148 | Wongan-Ballidu Road Board | 1927-28 |
| Kregor | John | Kondut | Buick | WB ● 65 | Wongan-Ballidu Road Board | 1926-27 |
