The Regional Rail Lines (R1,R2,R3, R5, R6, R7, R8) operates throughout the Chester, Delaware, Montgomery, Philadelphia Countie(s) in Pennsylvania, New Castle County in Delaware (R2), and also Mercer County in New Jersey (R3, R7). The fleet consists of nine (9) different models of rail equipment that are in revenue service.
The Silverliner IV fleet is the current backbone of the SEPTA regional rail fleet. Due to their age and dynamic braking system, these units are the primary trains that SEPTA uses on their rail routes during the weekends. The Silverliner II & IIIs, however, are the secondary trains being used in the fleet being mainly used during the rush hour. Although they are mainly used during the rush hours, there are still several units still in service during all times of the day with very exceptional service on the weekends.
The push pull fleet is used on both Limited and express runs on the R3, R5, and the R7 to be used to their full efficiency; These trains usually consists of 5-8 Comet I/II/III cars. The Comet I fleet were recently obtained from NJT and operates on the Great Valley Flyer (R5). The AEM 7 fleet was built in 1987, whereas the single ALP-44 unit was built in 1996. For more information on their assignments .
#701, 703-705 double ended and 801-806 sngle ended cars has arrived on SEPTA property. For the next several months, these three pilot cars will undergo testing.
| Year | Manufacturer | Model | Fleet |
| 2010-2011 | Rotem | Silverliner V Double End | #701-738 |
| 2010-2011 | Rotem | Silverliner V Single End | #801-882 |
There are a total of 47 Double End and 184 Single End cars in service
Single end cars operate in married pairs.
All of the 9018-9031 cars and some of the 270-303 cars have been renumbered into the 400-416 fleet when there PCB transformers were replaced
Some of the 101-188 and 309-399 cars were renumbered into the 417-460 series when there PCB transformers were replaced.
Car 9020 was destroyed in an Accident
| Year | Manufacturer | Model | Fleet |
| 1974-76 | General Electric | Silverliner IV Double End | #270-303, #400-416 |
| 1974-76 | General Electric | Silverliner IV Single End | 101-188, 304-399, 417-460 |

Budd Silverliner III
Ardmore, PA
Taken By Brandon S
All Silverliner III cars are Ex Pennsylvania RR
The drivers cabs on these cars are located on the left hand side as oppose to the right hand side do to fact that they were going to be used on a pay as you enter service that never came to pass.
17 Silverliner III cars are still in service.
All Silverliner IIIs will be replaced by Silverliner V cars.
| Year | Manufacturer | Model | Fleet |
| 1967 | St Louis Car | Silverliner III double-end | 220-239 |

Budd Silverliner II
Temple Station
Taken By Brandon S.
Notes
► Cars 201-219 (MP85BE1-TC) and 251-269 (MP85CE1-TC) are Ex Pennsylvania RR
► Cars 9001-9017 (REB13 (MA1B)) are Ex-Reading RR.
► Car #214 has been retired
► Car 210 and 257 were destroyed by fire, and car 265 was destroyed in an Accident.
► There are a total of 51 Silverliner II cars in Service.
All Silverliner II cars will be replaced by Silverliner V cars.
ROSTER & INFORMATION (as of 2/27/2010)
| Year | Manufacturer | Model | Fleet |
| 1962-63 | Budd | Silverliner II double-end | 201-219 , 251-269 , 9001-9017 |

Push Pull # 2301 lead
Taken at Temple station
By Brandon Shaw
Push-Pull Notes
► ALP-44 #2308 given to SEPTA by ABB for a damage settlement for late delivery of the Norristown-N5 cars.
► Comet III cars are built to Metro North Specifications
► Comet I cars were purchased by SEPTA from NJT in 2008.
| Year | Manufacturer | Model | Fleet |
| 1970 | Pullman Standard | Comet I Cab | 2460-2461 |
| 1970 | Pullman Standard | Comet I Coaches | 2590-2595 |
| 1987 | ASEA | ASEA AEM-7 | 2301-2307 |
| 1996 | ABB | ALP-44 Locomotive | 2308 |
| 1987 | Bombardier | Comet II Cab Coaches | 2401-2410 |
| 1987 | Bombardier | Comet II Coaches | 2501-2525 |
| 2000 | Bombardier | Comet III Coaches | 2550-2559 |
#These units were purchased from NJT in 2008.