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B&M 334, 506 and 319 at Congress St on the 26th of October 2005.
Photo by John Erickson.
B&M 334, 506 and 319 at Congress St on the 26th of October 2005.
Photo by John Erickson.
B&M 332 takes 506 and EDWA through Cumberland Center on the 17th of October 2007.
Photo by John Erickson.
B&M 332 takes 506 and EDWA through Cumberland Center on the 17th of October 2007.
Photo by John Erickson.
B&M 328 and MEC 506 arrive with NMED at Rigby on the 18th of May 2008.
Photo by John Erickson.
B&M 328 and MEC 506 arrive with NMED at Rigby on the 18th of May 2008.
Photo by John Erickson.
506 in its new PanAm Blue paint job at Congress St on February 5, 2009.
Photo by John Erickson.
506 in its new PanAm Blue paint job at Congress St on February 5, 2009.
Photo by John Erickson.
506 in its new PanAm Blue paint job at Congress St on February 5, 2009.
Photo by John Erickson.
506 in its new PanAm Blue paint job at Congress St on February 5, 2009.
Photo by John Erickson.
MEC 506 working DJ-1 at Allied in Auburn on December 16th of 2015.
Photo by John Erickson.
MEC 506 working DJ-1 at Allied in Auburn on December 16th of 2015.
Photo by John Erickson.
MEC 506, 505, & one other engine prepare to take a left with PORU at Leeds Junction on May 19th of 2017.
Photo by John Erickson.
MEC 506, 505, & one other engine prepare to take a left with PORU at Leeds Junction on May 19th of 2017.
Photo by John Erickson.
MEC 506 & 371 lead PORU through Strickland's in Livermore Falls on February 10th of 2018.
Photo by John Erickson.
MEC 506 & 371 lead PORU through Strickland's in Livermore Falls on February 10th of 2018.
Photo by John Erickson.
MEC 506 & 371 lead PORU through Livermore Falls near Shy Corner on February 10th of 2018.
Photo by John Erickson.
MEC 506 & 371 lead PORU through Livermore Falls near Shy Corner on February 10th of 2018.
Photo by John Erickson.
MEC 506 leads POED at Cooks on Feb. 29th of 2020.
Photo by John Erickson.
MEC 506 leads POED at Cooks on Feb. 29th of 2020.
Photo by John Erickson.
PORU with MEC engines 501 & 506 at Blake in New Gloucester on April 25th of 2020.
Photo by John Erickson.
PORU with MEC engines 501 & 506 at Blake in New Gloucester on April 25th of 2020.
Photo by John Erickson.
MEC 506 leads PORU eastward at Hackets in Auburn on June 20th of 2020.
Photo by John Erickson.
MEC 506 leads PORU eastward at Hackets in Auburn on June 20th of 2020.
Photo by John Erickson.
PORU switching engines around at Hackets in Auburn on October 3rd of 2020.
Photo by John Erickson.
PORU switching engines around at Hackets in Auburn on October 3rd of 2020.
Photo by John Erickson.
PORU switching engines around at Hackets in Auburn on October 3rd of 2020.
Photo by John Erickson.
PORU switching engines around at Hackets in Auburn on October 3rd of 2020.
Photo by John Erickson.
PORU switching engines around at Hackets in Auburn on October 3rd of 2020.
Photo by John Erickson.
PORU switching engines around at Hackets in Auburn on October 3rd of 2020.
Photo by John Erickson.
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MEC 7489 leads the way on a combined WAPO/RUPO westbound at Congress St. in Portland on March 16th of 2019.
Video by John Erickson.
MEC 506, 606, & 7627 haul POED through Cooks in Scarborough on February 29th of 2020.
Video by John Erickson.
MEC 501 & 506 with PORU at Den in Lewiston on April 23rd of 2020.
Video by John Erickson.
MEC 506, 512, & 505 with PORU at Leeds Junction on June 20th of 2020.
Video by John Erickson.
MEC engines 518, 506, & 321 reordering their engines on PORU at Hackets in Auburn on October 3rd of 2020.
Video by John Erickson.
PanAm MEC engines 7585, 7518, 506, 7534, & 619 bring POWA through Oakland on December 4th of 2020.
Video by John Erickson.
MEC 502, 313, & 506 heading east up the branch at Curtis Corner in Leeds on May 9th of 2021.
Video by John Erickson.
MEC 506 383 & 307 take PORU eastbound at Gray on May 29th of 2021.
Video by John Erickson.
CSXT 7807, CSXT 7799, and MEC 506 lead L070 through Leeds Junction toward Monmouth on the 13th of March, 2025.
Video by John Erickson.
CSXT 7787 leading CSXT 8009, MEC 506, and MEC 515 with L070 running through Greene on April 29th of 2025.
Video by John Erickson.
CSXT 7787 leading CSXT 8009, MEC 506, and MEC 515 with L070 running through Leeds Jct on April 29th of 2025.
Video by John Erickson.
CSXT 7787 leading CSXT 8009, MEC 506, and MEC 515 with L070 running through Belgrade on April 29th of 2025.
Video by John Erickson.
| Number | Marks | Current Disposition | Eng. Serial No. | Eng. Built: | Date Acquired: |
|---|---|---|---|---|---|
| 506 | MEC | Active | A3049 | 4-7/1974 | 1990s |
| Eng. Type: | Engine Maker: | Trucks: | Horsepower: | Weight: | Engine: |
| GP40-2 | EMD | HTB 4-Wheel | 3000 | 250,000 lbs | 645E3C 16 cylinder |
| Bore & Stroke: | Fuel Capacity: | Truck Wheel Base: | Tractive Effort (starting): | Gear Ratio: | Speed: |
| 9.08" X 10" | 1700 | 9'-00" | 61,000 lbs @25% | 62:15 | 65 mph |
All diesel engine data is usually from The Diesel Shop with inclusions from Wikipedia where the information on The Diesel Shop was spotty. Former Maine Central Locomotives are checked against Maine Central Diesel Locomotives Revised Edition by Edwin B. Robertson.