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Measurements for SD40-2s and SD40T-2s

This page was last updated on November 20, 2001

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In 1983 and 1984, Don Strack spent some productive time with a 100' measuring tape recording some major dimensions on five SD40-2s and SD40T-2s.

The project came to an end when he realized that the bolster centerlines of the then-new Athearn model were short, thereby making accurate frame measurements a meaningless point.

Road Number SP 8289 D&RGW 5369 D&RGW 5397 KCC 105 UP 3290
Model SD40T-2 SD40T-2 SD40T-2 SD40-2 SD40-2
Builder Number 786265-60 756046-14 776098-12 776129-05 74676-03
Builder Date 7/80 8/75 8/78 11/78 3/75
Order Number 786265 756046 776098 776129 74676
Number Group 8230-8299 5356-5373 5386-5397 101-107 3288-3304
Length - over coupler pulling faces 70' 7-3/4" 70' 7-1/4" 70' 8-1/2" 68' 11-1/4" 68' 11-1/4"
Length - over end sheets 66' 5-3/4" 66' 6-1/4" 66' 7-1/2" 64' 9-1/4" 64' 9-3/4"
Front end sheet to front jacking pad 11' 4-1/2" 11' 4" 11' 5-1/2" 11' 5" 11' 4-3/4"
Jacking pad centerline 43' 10-1/4" 43' 11" 43' 11-1/2" 41' 11-3/4" 42' 3/4"
Front jacking pad to front of fuel tank 10' 9-3/4" 13' 4" 13' 3-3/4" 11' 1-1/4" 11' 1-1/2"
Fuel tank length 22' 2" 19' 9-1/2" 19' 9-1/4" 15' 10" 19' 9-1/4"
Fuel capacity 4400 4000 4000 3200 4000
Rear of fuel tank to rear jacking pad 10' 10-1/2" 10' 9-1/2" 10' 10-1/2" 14' 11-3/4" 11' 2"
Rear jacking pad
to rear end sheet
11' 3" 11' 3-1/2" 11' 2-1/2" 11' 4-1/2" 11' 4-1/4"
Front/rear end sheet
to end of drop step
21"/21" 21"/21" 22"/21" 21"/21" 21"/21"
Front/rear end sheet
to coupler pulling face
25"/25" 25"/24" 25"/24" 25"/25" 25"/24"
           
Front end sheet to front of nose 3' 2-1/2" 3' 11" 3' 3"   10-1/2"
Nose length 88" 81" 88"   116" (35" flat)
Front end sheet to front of cab   10' 8" 10' 9"   10' 8"
Cab length   6' 6" 6' 6"   6' 6"
Rear of cab to rear end sheet   49' 4-1/4" 49' 4-1/2"   47' 8"
Rear of carbody to rear end sheet 2-1/2" 3-1/2" 4-1/2"   5' 9-1/2"
           
Walkway height above top of rail   5' 3-3/4" 5' 4-3/4"   5' 3-1/4"
Bottom of frame to top of rail   47" 47"   46"
Bottom of fuel tank to top of rail   7-1/2" 8"   6-1/4"
Front of fuel tank
to front of air reservoir
    4' 8-1/2"   7' 2"
Air reservoir length     12' 7"   12' 8"
Air reservoir diameter     15"   15"

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