| Yealering Co-op. | - | Yealering | Chevrolet | WK ● 201 | Wickepin Road Board | 1927-28 |
| Yeates | A. | Chelsfield, Millendon | Ford | SW ● 20 | Swan Road Board | 1925-26 |
| Yeates | A. | Chesfield Milledon | Ford | SW ● 20 | Swan Road Board | 1926-27 |
| Yeates | A. Cheisfield | Millendon | Ford | SW ● 20 | Swan Road Board | 1927-28 |
| Yeates | C. S. H. | 441 Rokeby Road | - | S 48 | Subiaco Municipality | 1915 |
| Yeates | G. F. | 37 Barrack Street | Ford 20 H.P. | P 480 | Perth Municipality | 1919 |
| Yeates | G. F. | 37 Barrack Street, Perth | Chevrolet | 429 | Metro Private Car | 1922-23 |
| Yeates | G. F. | Shenton Road, Claremont | Chevrolet | 429 | Metro Private Car | 1923-24 |
| Yeates | G. F. | Shenton Road, Claremont | Chevrolet | 429 | Metro Private Car | 1925-26 |
| Yeates | G. F. | Shenton Road, Claremont | Chevrolet | 429 | Metro Private Car | 1926-27 |
| Yeates | G. F. | Shenton Road, Claremont | Chevrolet | 429 | Metro Private Car | 1926-27 |
| Yeates | P. | 76 Errant Street, Cottesloe Beach | Overland | 2061 | Metro Private Car | 1925-26 |
| Yeates | W. H. | 1 Proclamation Street, Subiaco | Dodge | 11781 | Metro Private Car | 1926-27 |
| Yeates | W. J. | Milledon | Chevrolet Truck | SW ● 24 | Swan Road Board | 1926-27 |
| Yeates | W. J. | Millendon | Chevrolet Truck | SW ● 24 | Swan Road Board | 1927-28 |
| Yeates & Nicholls | - | 338 Bulwer Street, North Perth | Oldsmobile | 8448 | Metro Private Car | 1927-28 |
| Yee | Hing | Wanneroo | Commerce Truck | WN ● 7 | Wanneroo Road Board | 1924-25 |
| Yee Hing | - | Wanneroo | Republic Wagon | WN ● 7 | Wanneroo Road Board | 1925-26 |
| Yee Lock Quong Co | - | Carnarvon | Ford Truck | CN 43 | Carnarvon Municipal Council | 1927-28 |
| Yeeda Station | - | Derby | Ford | KW ● 21 | West Kimberley Road Board | 1925-26 |
| Yeeda Station | - | Derby | Dodge Truck | KW ● 61 | West Kimberley Road Board | 1926-27 |
| Yeeda Station | - | Derby | Dodge Utillity | KW ● 61 | West Kimberley Road Board | 1927-28 |
| Yeing | A. | Aureoin Street, Palmyra | Overland | 1927 | Metro Private Car | 1922-23 |
| Yeing | A. | 116 King Street, Fremantle | Commerce Wagon | 10677 | Metro Hire or Trade | 1927-28 |
| Yeing | Mrs A. | 116 King Street, East Fremantle | International Wagon | 3318 | Metro Hire or Trade | 1926-27 |
| Yeing | Mrs E. J. | Palmyra | International Wagon | 3317 | Metro Private Car | 1924-25 |
| Yeing | Mrs E. J. | Palmyra | International Wagon | 3318 | Metro Hire or Trade | 1925-26 |
| Yeldon | A. | 25 Farmer Street, North Perth | Scat 16 H.P. | P 226 | Perth Municipality | 1917-18 |
| Yeldon | A. | 25 Farmer Street, North Perth | Scat 16 H.P. | P 226 | Perth Municipality | 1919 |
| Yeldon | A. | 25 Farmer Street, North Perth | Overland | 6283 | Metro Private Car | 1924-25 |
| Yeldon | A. | 25 Farmer Street, North Perth | Overland | 6283 | Metro Private Car | 1925-26 |
| Yeldon | A. | 25 Farmer Street, North Perth | Overland | 6283 | Metro Private Car | 1927-28 |
| Yeldon | H. V. | Katanning | Overland | KA ● 202 | Katanning Road Board | 1924-25 |
| Yeldon | H. V. | Katanning | Overland | KA ● 202 | Katanning Road Board | 1925-26 |
| Yeldon | H. V. | Katanning | Overland | KA ● 202 | Katanning Road Board | 1926-27 |
| Yeldon | H. V. | Katanning | Dealer's License | KA ● 202 | Katanning Road Board | 1927-28 |
| Yeldon | R. C. | 35 Clotilde Street, Mount Lawley | Dodge | 13434 | Metro Private Car | 1926-27 |
| Yeldon | R. C. | 35 Clotilde Street, Mount Lawley | Dodge | 13434 | Metro Private Car | 1927-28 |
| Yelland | A. | Parker Street, Bassendean | Darracq | 8823 | Metro Private Car | 1926-27 |
| Yelland | A. E. | James Street, Guildford | Ford 20 H.P. | GW ● 3 | Guidford West Road Board | 1919 |
| Yelland | H. J. | Bruce Rock | Chevrolet | BK 86 | Bruce Rock Road Board | 1923 - 1924 |
| Yelland | H. J. | Bruce Rock | Hupmobile | BK ● 86 | Bruce Rock Road Board | 1925-26 |
| Yelland | H. J. | Bruce Rock | Hupmobile | BK ● 86 | Bruce Rock Road Board | 1926-27 |
| Yelland | H. J. | Bruce Rock | Hupmobile | BK ● 86 | Bruce Rock Road Board | 1927-28 |
| Yelland | J. J. | Kumminin | Chevrolet | BK ● 86 | Bruce Rock Road Board | 1924-25 |
| Yellow Cab Co | - | Wellington Street, Perth | Standard | 14014 | Metro Private Car | 1926-27 |
| Yellow Cab Co | - | Wellington Street, Perth | standard | 14014 | Metro Private Car | 1927-28 |
| Yellow Cab Co (W.A.) Ltd | - | Perth | Yellow Cab | 10601 | Metro Hire or Trade | 1926-27 |
| Yellow Cab Co (W.A.) Ltd | - | Perth | Yellow Cab | 10602 | Metro Hire or Trade | 1926-27 |
| Yellow Cab Co (W.A.) Ltd | - | Perth | Yellow Cab | 10603 | Metro Hire or Trade | 1926-27 |
