| Business | Phone |
| Tri-County Transmission 12450 Se 80th Ave, Portland 97222 | (503) 653-0000 |
| A Street Transmissions 1451 Ne Alberta St, Portland 97211 | (503) 282-2830 |
| Aamco Transmissions 120 Ne 82nd Ave, Portland 97220 | (503) 255-4033 |
| Aamco Transmissions 18130 Se Division St, Portland 97236 | (503) 667-1222 |
| West Coast Transmission 2141 Se Powell Blvd, Portland 97202 | (503) 233-6555 |
| Alpha Transmission Co 8900 Ne 4th Ave, Portland 97211 | (503) 285-6500 |
| Trans Domestic & Foreign 2501 N Lombard St, Portland 97217 | (503) 735-1407 |
| Trans-Matic Transmissions 5329 Se 80th Ave, Portland 97206 | (503) 774-1450 |
| Transmission Exchange Co 1803 Ne M L King Blvd, Portland 97212 | (503) 284-0768 |
| Transmission Specialist 10811 Ne Marx St # B, Portland 97220 | (503) 282-7688 |
| Automatic Transmission Svc 1521 Se 7th Ave, Portland 97214 | (503) 231-9000 |
| Bradshaw's Transmission Annex 909 Se 12th Ave, Portland 97214 | (503) 233-9934 |
| C R Transmission Inc 11520 Se 82nd Ave # D, Portland 97266 | (503) 659-7089 |
| Chuck's Automatic Transmission 4040 Se Powell Blvd, Portland 97202 | (503) 774-1191 |
| Rose City Transmission & Gear 5120 Ne 42nd Ave, Portland 97218 | (503) 493-2220 |
| Rutherford Core Supply 5946 Se 111th Ave, Portland 97266 | (503) 761-0360 |
| Columbia Transmission Co 1737 Se 12th Ave, Portland 97214 | (503) 233-6305 |
| Rex's Trans Mobile Svc 5936 Se 111th Ave, Portland 97266 | (503) 760-5705 |
| Portland Transmission Wrhse 1016 Se Hawthorne Blvd, Portland 97214 | (503) 233-4966 |
| Division Transmission 8509 Se Foster Rd, Portland 97266 | (503) 777-2753 |
| Oregon Transmission Center 4851 Se Division St, Portland 97206 | (503) 473-8115 |
| Mr Milex Transmission 18449 Se Stark St, Portland 97233 | (503) 667-5815 |
| Mylex Mr Transmission 18449 Se Stark St, Portland 97233 | (503) 667-8207 |
| Import Transmission Exchange 10940 Ne Marx St, Portland 97220 | (503) 408-6465 |
| Import Transmission Exchange 6435 Ne Colwood Way, Portland 97218 | (503) 408-6465 |
| Marty's Transmissions 4329 Ne Killingsworth St, Portland 97218 | (503) 331-1852 |
| Master Transmission 6214 N Lombard St, Portland 97203 | (503) 285-9195 |
| Jerry's Transmissions 7631 Ne Sandy Blvd, Portland 97213 | (503) 287-9909 |
| Premier Transmission Company 12436 SE Stark St, Portland 97233 | (503) 734-8586 |