| Kilmartin | J. J. | Forrest House, Perth | Buick | 147 | Metro Private Car | 1923-24 |
| Kilminister | S. | Belka | Chevrolet | MD ● 39 | Merredin Road Board | 1927-28 |
| Kilminster | W. | Belka | Chevrolet | MD ● 39 | Merredin Road Board | 1926-27 |
| Kilminsterce | W. | Merriden | Chevrolet | MD ● 39 | Merredin Road Board | 1925-26 |
| Kilmurray | W. | Mingenew | Ford | MI ● 124 | Mingenew Road Board | 1927-28 |
| Kilner | R. | Holyoake | Ford | MY ● 85 | Murray Road Board | 1925-26 |
| Kilner | R. | Holyoake | Ford | MY ● 85 | Murray Road Board | 1926-27 |
| Kilner | R. V. | Lawlers | De Dion 10 H.P. | LRB 11 | Lawlers Road Board | 1915 |
| Kilner | R. V. | Lawlers | De Dion 7 H.P. | LA 7 | Lawlers Roads Borad | 1916 |
| Kilner | R. V. | - | De Dion 8 H.P. | LA ● 7 | Lawlers Road Board | 1917-18 |
| Kilner | R. V. | - | De Dion 8 H.P. | LA 7 | Lawlers Road Board | 1919 |
| Kilner | R. V. | Lawlers | De Dion | LA ● 3 | Lawlers Road Board | 1922-23 |
| Kilner | R. V. | Lawlers | Ford | LA ● 11 | Lawlers Road Board | 1924-25 |
| Kilner | R. V. | North Dandalup | Chevrolet | MY ● 191 | Murray Road Board | 1926-27 |
| Kilner | R. V. | North Dandalup | Chevrolet | MY ● 191 | Murray Road Board | 1927-28 |
| Kilpatrick | B. T. | Normans Lake | Dodge | NA ● 28 | Narrogin Road Board | 1924-25 |
| Kilpatrick | B. T. | Nomans Lake | Dodge | NO ● 28 | Narrogin Road Board | 1925-26 |
| Kilpatrick | B. T. | Normans Lake | Dodge | NO ● 28 | Narrogin Road Board | 1926-27 |
| Kilpatrick | B. T. | Normans Lake | Dodge | NO ● 28 | Narrogin Road Board | 1927-28 |
| Kilpatrick | E. | Bally Bally Beverley | Ford | BE ● 91 | Beverley Road Board | 1924-25 |
| Kilpatrick | E. | Bally Bally | Ford | BE ● 91 | Beverley Road Board | 1925-26 |
| Kilpatrick | F. | Bally-Bally, Beverley | Ford 20 H.P. | BE ● 91 | Beverley Road Board | 1922-23 |
| Kilpatrick | F. | Bally Bally, Beverley | Ford 20 H.P. | BE ● 91 | Beverley Road Board | 1923-24 |
| Kilpatrick | F. | Bally Bally | Ford | BE ● 91 | Beverley Road Board | 1926-27 |
| Kilpatrick | F. | Bally Bally | Hudson | BE ● 91 | Beverley Road Board | 1927-28 |
| Kilpatrick | F. | Pingrup | Ford Truck | KT ● 70 | Kent Road Board | 1927-28 |
| Kilpin | J. | Toodyay | Ford Truck | T ● 112 | Toodyay Road Board | 1926-27 |
| Kilpin | R. C. | 85 Teague Street, Victoria Park | Chevrolet | 10490 | Metro Hire or Trade | 1926-27 |
| Kim | C. | C/o Hop Hing & Co, James Street, Perth | Overland | 6386 | Metro Private Car | 1925-26 |
| Kim | C. | 124 James Street, Perth | Overland | 6386 | Metro Private Car | 1926-27 |
| Kim | C. | 124 James Street, Perth | Overland | 6386 | Metro Private Car | 1927-28 |
| Kimber | A. E | Ballidu | Dodge | WB ● 46 | Wongan-Ballidu Road Board | 1926-27 |
| Kimber | A. E. | Ballidu | Dodge | WB ● 46 | Wongan-Ballidu Road Board | 1927-28 |
| Kimber | H. S. | 52 Heytesbury Road, Subiaco | Dodge | 4326 | Metro Private Car | 1923-24 |
| Kimber | H. S. | 52 Heytesbury Road, Subiaco | Dodge | 4326 | Metro Private Car | 1924-25 |
| Kimber | H. S. | 52 Heytesbury Road, Subiaco | Dodge | 4326 | Metro Private Car | 1925-26 |
| Kimber | H. S. | 52 Heytesbury Road, Subiaco | Dodge | 4326 | Metro Private Car | 1926-27 |
| Kimber | H. S. | 52 Heytesbury Road, Subiaco | Dodge | 4326 | Metro Private Car | 1927-28 |
| Kimber & Sons | - | Ballidu | Vulcan Truck | WB ● 151 | Wongan-Ballidu Road Board | 1926-27 |
| Kimber & Sons | - | Ballidu | Chevrolet Truck | WB ● 138 | Wongan-Ballidu Road Board | 1927-28 |
| Kimber & Sons | - | Ballidu | Chevrolet | WB ● 151 | Wongan-Ballidu Road Board | 1927-28 |
| Kimberlery Downs Station | - | Derby | Ford Truck | KW ● 7 | West Kimberley Road Board | 1926-27 |
| Kimberley | J. | Dangin | Ford Wagon | Q ● 190 | Quairading Road Board | 1926-27 |
| Kimberley | J. B. | Dangin | Chevrolet | Q ● 290 | Quairading Road Board | 1927-28 |
| Kimberley Downs Station | - | Derby | Ford Truck | KW ● 7 | West Kimberley Road Board | 1925-26 |
| Kimberley Downs Station | - | Derby | Ford Truck | KW ● 7 | West Kimberley Road Board | 1927-28 |
| Kimberley Pastoral Co | - | Station, Derby | Ford 20 H.P. | KWO 3 | West Kimberley Road Board | 1919 |
| Kimberly | Forrest | Hay Street | Overland 20 H.P. | P 764 | Perth Municipality | 1916 |
| Kimberly | Forrest | Cubbing Station, Quairading | Morris-Oxford 10 H.P. | P 764 | Perth Municipality | 1916 |
| Kimberly Forrest | - | Cubbine Station, Quairading | Ford 20 H.P. | P 597 | Perth Municipality | 1916 |
