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Not many, the last major operator of SD45s was MRL and they scrapped most of theirs between 2007 and 2014. There are about half a dozen in preservation, but outside of that, only their younger sisters the SD45-2s and SD45T-2s, or some units which have been rebuilt into SD40-2s can really be found in regular service.

MRL 355

CEFX has some of them still around. There is a shortline railroad in Texas being Texas Northeastern that has a SD45R still in it's Southern Pacific scheme,which recently was acquired by BUGX and awaits further service.It previously was one of the few that survived under CEFX after the merge.

@@jacksonrailroad Portland and western in Oregon also has sd40

Same, grew up in the 80's near an MKT line and what is now DGNO's main office in Carrollton Tx. Could hear them rumbling and throttling up and heading out at night when it was quiet about 1/3 mile away. I'd wait to hear them hit the horn crossing over Belt Line rd and then heading through downtown Carrollton. That low frequency rumble is comforting. These days I live about 1/4 mile from a KCS crossing and can hear almost the same thing. Not quite as rumbly and resonant as the good old SD40-2's but good enough.

I let my HO Scale engines idle all night long on top of a cabinet in my room. 😅

Yes, the new GE's are all very uninteresting. All look the same. I do love the early GE's though!!

DMVW Railway. Looks like Southern Pacific.

Is it the original 20-cylinder engine? Most SD45s were re-engined with 16 cylinder blocks because the 20-cylinder version was unreliable.

​@@beeble2003 All of the SD45's & SD45-2's came with 645 V20's.The prime movers themselves weren't a issue,at least mechanically,but they were always a weight issue with the frames.Most of them dealt with having fractured frames because EMD didn't reinforce them to sustain the weight of four extra cylinders.The other main issue was attempting to use crankshafts at first,like the ones 645 V16's use.Over time due to internal vibration,the engine block would eventually put stress on and bend the frames causing them to result in what I mentioned.That's the reason why they were designated into SD45R's and some as SD40M-2's in modern times with the 645 V16's. As for the crankshaft failure,some railroads derated their SD45's on horsepower in order to minimise that error.

@@Slim_Slid "All of the SD45's came with 645 V20's." And most of them were re-engined with V16s, as I stated. "Most of them dealt with having fractured frames because EMD didn't reinforce them to sustain the weight of four extra cylinders." I've never heard of SD45s fracturing frames. If the main frames were cracking, the locomotive would not be repairable, which contradicts the fact that most SD45s were re-engined with SD40 engines and put back into service. The problem I have heard of is with the engine blocks, not the locomotive frames. Again, that ties in to the solution being replacing the engine. "The only other main issue was using the same crankshafts as the 645 V16's use" That's not physically possible. You can't use a V16's crankshaft in a V20 engine, because a V16's crankshaft only connects to 16 cylinders. "The prime movers themselves weren't a issue... [the crankshafts] were always getting destroyed" The crankshaft is an integral part of the engine. If the crankshaft is always getting destroyed, the engine has a _massive_ issue. "Over time due to all that vibration,the weight of the engine block would eventually put stress on and bend the frames" Sorry, but that's just nonsense. Locomotive frames do not bend because of the weight of the engine. Permanently bending the frame would require forces massively in excess of its design load. And, again, a locomotive with a damaged frame will almost certainly be scrapped, because replacing something that fundamental is basically building a new locomotive.

Nigel Dryden

Probably because the CC 205 use an EMD 710 engine, which is the successor to the SD45's 645 engine

I think that's the Southern Pacific livery.

@@LegoWormNoah101 No, that was gray with red on the front

@@lukeyc116 This is yes, but the Southern Pacific livery was gray and red.