# Line 8 (CPTM)

Line 8 (Diamond) (Portuguese: Linha 8–Diamante), formerly Line B (Gray), is a line of the São Paulo Metropolitan Trains system in Greater São Paulo, Brazil. Since 27 January 2022, ViaMobilidade operates the line for 30 years, along with Line 9-Emerald.

## Stations

| Station | Code | Platforms | Position | Connections | City |
| Júlio Prestes | JPR | Island and side platforms | At-grade | - | São Paulo |
| Palmeiras-Barra Funda | BFU | Island platforms | At-grade | Barra Funda Bus Terminal Barra Funda Road Terminal | São Paulo |
| Lapa | LAB | Side platforms | At-grade | Lapa Bus Terminal | São Paulo |
| Domingos de Moraes | DMO | Island platform | At-grade | - | São Paulo |
| Imperatriz Leopoldina | ILE | Island platform | At-grade | - | São Paulo |
| Presidente Altino | PAL | Island platforms | At-grade | | Osasco |
| Osasco | OSA | Island platforms | At-grade | Osasco Bus Terminal Osasco Road Terminal | Osasco |
| Comandante Sampaio | CSA | Island platforms | At-grade | Itapevi–Butantã Metropolitan Corridor | Osasco |
| Quitaúna | QTU | Island platforms | At-grade | Itapevi–Butantã Metropolitan Corridor | Osasco |
| General Miguel Costa | GMC | Island platforms | At-grade | Luiz Bortolosso Metropolitan Terminal Itapevi–Butantã Metropolitan Corridor | Osasco |
| Carapicuíba | CPB | Island platforms | At-grade | Carapicuíba Bus Terminal Itapevi–Butantã Metropolitan Corridor | Carapicuíba |
| Santa Terezinha | STE | Island platform | At-grade | Itapevi–Butantã Metropolitan Corridor | Carapicuíba |
| Antônio João | AJO | Side platforms | At-grade | - | Barueri |
| Barueri | BRU | Island platforms | At-grade | Barueri Bus Terminal Itapevi–Butantã Metropolitan Corridor | Barueri |
| Jardim Belval | JBE | Island platform | At-grade | Itapevi–Butantã Metropolitan Corridor | Barueri |
| Jardim Silveira | JSI | Island platform | At-grade | Jardim Silveira Bus Terminal Itapevi–Butantã Metropolitan Corridor | Barueri |
| Jandira | JDI | Island platform | At-grade | Jandira Bus Terminal Itapevi–Butantã Metropolitan Corridor | Jandira |
| Sagrado Coração | SCO | Island platform | At-grade | Itapevi–Butantã Metropolitan Corridor | Jandira |
| Engenheiro Cardoso | ECD | Island platform | At-grade | Itapevi–Butantã Metropolitan Corridor | Itapevi |
| Itapevi | IPV | Island platform | At-grade | (Amador Bueno Extension) Itapevi–Butantã Metropolitan Corridor | Itapevi |

### Amador Bueno Extension

| Station | Code | Platforms | Position | Connections | City |
| Itapevi | IPV | Island platforms | At-grade | (Main line) Itapevi–Butantã Metropolitan Corridor | Itapevi |
| Santa Rita | SRT | Island platform | At-grade | - | Itapevi |
| Amador Bueno | ABU | Island platform | At-grade | - | Itapevi |

## Mairinque Extension

Since the establishment of suburban trains in the late 1920s, their services have connected São Paulo to the city of Mairinque. With the creation of Fepasa in 1971, the suburban section was transferred to the Regional Suburbs Unit. This regional unit was expanded in the 1970s and transformed into a Metropolitan Regional Division (DRM).
In the 1980s, the service underwent some renovations, with the introduction of the Toshiba trains renovated in Rio Claro and the construction or renovation of the existing stops between Mairinque and Amador Bueno, equipped only with shelters and "humps" for easy boarding of passengers. The service was officially known as "Trem de Mairinque" and nicknamed "Mairinquinho". In 1987, the city of São Roque even considered an agreement with Fepasa for the integration of trains with the bus network of the then public company SanTC (São-Roquense de Transportes Colectivos), but the proposal did not move forward.
| Station | Municipality | Status | Comments |
| Amador Bueno | Itapevi | Operating | Station reconstructed |
| Parada 46 | São Roque | Deactivated since 1999 | Simple stop |
| São João Novo | São Roque | Deactivated since 1999 | |
| Parada 50 | São Roque | Deactivated since 1999 | Simple stop |
| Mailasqui | São Roque | Deactivated since 1999 | |
| Cinzano | São Roque | Deactivated since 1999 | Simple stop |
| Gabriel Piza | São Roque | Deactivated since 1999 | Demolished by looters in 2010. |
| Vila Amaral | São Roque | Deactivated since 1999 | Simple stop |
| São Roque | São Roque | Deactivated since 1999 | Current headquarters of the local Municipal Guard. |
| Marmeleiro | São Roque | Deactivated since 1999 | Simple stop |
| Mairinque | Mairinque | Deactivated since 1999 | Current cultural center. |