Service 375 was operated as a variation to Service 372, running between Worcester, Leigh Court, Crews Hill, and Stanford Bishop (Herefordshire House) on Mondays only. From the 1960s, one return journey started from Bromyard.
In the early 1970s, a large number of rural services were withdrawn and the group of services linking Worcester, Alfrick, and Suckley etc, which included Service 372, Service 373, and Service 375 were withdrawn on Saturday 3rd April 1971. Route number 375 was reused by BMMO before the end of the year as part of a renumbered exercise in the West Midlands area.
| 3 | 7 | 5 |
| October | 1949 | Worcester ↔ Crews Hill ↔ Linley Green ↔ Stanford Bishop | |
| June | 1957 | Worcester ↔ Crews Hill ↔ Linley Green ↔ Stanford Bishop | |
| October | 1964 | Worcester ↔ Crews Hill ↔ Linley Green ↔ Bromyard |
On Monday 23rd August 1971, West Midlands Passenger Transport Executive (WMPTE) renumbered their Service 115 and Service 117, Walsall and Sutton Coldfield circular routes, to Service 375 and Service 377 respectively. These routes were jointly operated with Birmingham and Midland Motor Omnibus Company Limited (BMMO—Midland “Red” Motor Services), and as a result BMMO renumbered their working on those routes to match.
The BMMO operations of Service 375 and Service 377 passed to West Midlands Passenger Transport Executive (WMPTE) on Monday 3rd December 1973, as part of the transfer of the BMMO Transfer of Services and Assets to WMPTE.