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EXPLODED PARTS DIAGRAM FOR:
400 Series Alco PA Streamlined Locomotive

PA Sets With Twin Motors:

  • PA/PB Pair # 477/478
  • PA/PA Pair- #s 474/475, 490/492, 494/495, 21920/21920-1, 21922/21922-1, 21925/21925-1
  • PA/PB/PA Triple-Set- #s 470/471/473/ 484
    /485/486, 490/491/493,21910/21910-1/21910-2

Use this diagram to identify the parts you need.  The circled numbers are keyed to the parts list provided below the diagram. 

Each part is identified on the diagram by a circled number, which is keyed to the parts list associated with that exploded view.  Scroll down the page to view the parts listing for that specific view.

 

Diagram #OrderProduct IDDescription
N/AN/A"A" UNIT CABIN(# 470 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 470 LATE MODEL POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 474 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 477 POWERED PA) 
 N/AN/A"A" UNIT CABIN(#s 484 & 21910 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 490 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 494 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 21920 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 21922 POWERED PA) 
 N/AN/A"A" UNIT CABIN(# 21925 POWERED PA) 
 PA11487@ PORTHOLE LENS (PA #s 470, 474, 477, 484, 490, 494, 21910 & 21920) 
 PA11488 HEADLIGHT LENS 
 PA11491B@ STEP (2-hole PA #s 470, 474, 477, 484, 490, 494 & 21910{ EARLY MODEL} ) 
 PA11491A@ STEP (1-hole PA #s {470, 484, 490 & 21910 LATE MODELS}, 21920 &21922) 
 S187 DRIVE PIN (for step NOT USED #21925) 
 PA11493@ AIR VENT 
P10800A RETAINING RING 
W83 WASHER 
 W2A28 SPRING WASHER (PA #s 470 LATE MODEL, 21910, 21920, 21922 & 21925) 
W124 FIBRE WASHER 
 N/AN/ASTEEL WASHER 
 N/AN/A(rear truck below chassis PA #s 470 LATE MODEL, 21910, 21920, 21922 & 21925) 
 W131A STEEL WASHER (front truck below chassis DUMMY PA #s, 21922-1 & 21925-1) 
XA10587E REMOTE CONTROL UNIT (4-position PA #s 470, 474, 477, 484, 490 & 494) 
 XA9612BRP BOTTOM FINGER UNIT 
 XA9612CRP TOP FINGER UNIT 
 N/AN/ADRUM 
 N/AN/AREMOTE CONTROL UNIT 
 N/AN/A (2-position PA #s 470 LATE MODEL, 21910, 21920, 21922 & 21925) 
N/AN/A"A"UNIT CHASSIS (PA #s 470, 474, 477, 484, 490 & 494) 
 PA11452C "A"UNIT CHASSIS (PA #s 470 LATE MODEL, 21910, 21920, 21922 & 21925) 
S319 SCREW 
XA11477 LAMP BRACKET ASSEMBLY 
 N/AN/A(PA #s 470, 474, 477, 484, 490 & 494; DUMMY PA #s 473, 475, 486, 492, 493 & 495) 
 XA15A383 LAMP BRACKET ASSEMBLY 
 N/AN/A(PA #s 21910, 21920, 21922 & 21925; DUMMY PA #s 21910-2, 21920-1, 21922-1 & 21925-1) 
PA8999 14v BULB 
10 PA11455 INSULATING BUSHING 
11 S230 SCREW (R.C. unit & field clamp PA #s 470, 474, 477 & 484; R.C. unit #s 490 & 494) 
 N/AN/ASCREW (R.C. unit PA #s 470 LATE MODEL, 21910, 21920, 21922 & 21925 ) 
 S406 SCREW 
 N/AN/A(field clamp PA #s {470 & 477 LATE MODELS}, 490, 494, 21910, 21920, 21922 & 21925) 
12 N/AN/AMOTOR ASSEMBLY (PA #s 470, 474 & 477 EARLY MODELS ONLY) 
 N/AN/AMOTOR ASSEMBLY 
13 XA11457 FIELD CLAMP ASSEMBLY (PA #s 470, 474 & 477 EARLY MODELS ONLY) 
 S165 SCREW 
 XA13A037 YOKE ASSEMBLY 
 PA13034 FIELD CLAMP 
 S165 SCREW 
14 XA13A036 FIELD ASSEMBLY 
15 N/AN/AARMATURE ASSEMBLY (PA #s 470, 474 & 477 EARLY MODELS ONLY) 
 N/AN/AARMATURE ASSEMBLY 
16  PA11000L@ BRUSH SPRING (left) 
17 PA11000R@ BRUSH SPRING (right) 
18  S171 SCREW 
19 PA11441 WORM COVER 
20 PA11453 BEARING STRAP 
21 XA11684 BRUSH HOLDER ASSEMBLY 
 PA11684 BRUSH 
 PA10132 BRUSH HOLDER 
21A  XA11454RP BRUSH BRACKET ASSEMBLY 
22 N/AN/ATRUCK CHASSIS & WHEEL ASSEMBLY (PA #s 470, 474 & 477 ONLY) 
 PA11343@ SOLID WHEEL 
 XA11473 INSULATED WHEEL 
 N/AN/APULL-MOR WHEEL 
 PA10006 GEAR AXLE 
 PA11447 WORM GEAR 
 PA11463 THRUST PLATE 
 XA12A074RP TRUCK CHASSIS & WHEEL ASSEMBLY 
 N/AN/ASOLID WHEEL 
 N/AN/APULL-MOR WHEEL 
 PA14A890 PULL-MOR TIRE 
 PA15281 GEAR AXLE 
 PA15A218 WORM GEAR 
 PA11463 THRUST PLATE 
(#s23-26) XA13A803 TRUCK w/COLLECTOR & COUPLER ARM ASSEMBLY (POWER PA front) 
 N/AN/ATRUCK w/COLLECTOR & COUPLER ARM ASSEMBLY (POWER PA rear, PB) 
23 N/AN/ATRUCK SIDE & COLLECTOR ASSEMBLY 
 PA12A586 COLLECTOR FRAME 
 PA11677A PICKUP SHOE 
 PA11533 SPRING 
24 PA12355A LEAF SPRING 
25 XA12A358 COUPLER & ARM ASSEMBLY 
 XA12A047@ KNUCKLE COUPLER 
 PA12A358 COUPLER EXTENSION ARM 
26  PA13A790 RIVET (PA power front, PA dummy rear) 
27 S249 SCREW (PA #s 470, 474, 477, 484, 490 & 494) 
 N/AN/ASCREW (PA #s 21910, 21920, 21922 & 21925) 
28 XA12A047@ KNUCKLE COUPLER 
29 PA13A791 RIVET (PA pwr rear, PB, PA dummy rear) 
30 N/AN/A"B" UNIT CABIN (# 471 PB) 
 N/AN/A"B" UNIT CABIN (# 471 LATE MODEL PB) 
 N/AN/A"B" UNIT CABIN (# 478 PB) 
 N/AN/A"B" UNIT CABIN (#s 485 & 21910-1 PB) 
 N/AN/A"B" UNIT CABIN (# 491 PB) 
 PA11487@ PORTHOLE LENS (PB #s 471, 478, 485, 491 & 21910-1) 
 PA11491B@ STEP (2-hole PB #s 471, 478, 485, 491 & 21910-1{ EARLY MODEL}) 
 PA11491A@ STEP (1-hole PB #s {471, 485, & 21910-1 LATE MODELS}) 
 S187 DRIVE PIN (for step) 
 PA11493@ AIR VENT 
31 XA11B831@ SPEAKER (DUMMY PA #s 475; PB #s471{1953-54} & 478) 
 XA14A127@ SPEAKER (DUMMY PA # 21920-1) 
 N/AN/ABRACKET (DUMMY PA # 21920-1) 
 S171 SCREW (DUMMY PA # 21920-1) 
32 PA12A820 CAPACITOR (DUMMY PA #s 475; PB #s471{1953-54} & 478) 
 PA14A914 CAPACITOR (DUMMY PA # 21920-1) 
33 N/AN/ASCREW (DUMMY PA # 475 & 21920-1; PB #s471{1953-54} & 478) 
34 PA11687 "B" UNIT CHASSIS (PB #s 471, 478, 485 & 491) 
 N/AN/A"B" UNIT CHASSIS (PB #s 471 LATE MODEL & 21910-1) 
35 XA11598A WHEEL & CHASSIS ASSEMBLY (PB #s 471 & 478; DUMMY PA front #s 473, 475) 
 PA11343@ SOLID WHEEL 
 XA11473 INSULATED WHEEL 
 PA10005 PLAIN AXLE 
 N/AN/AYOKE, WHEEL & CHASSIS ASSEMBLY (PB; DUMMY PA front) 
 N/AN/ASOLID WHEEL 
 XA14870 INSULATED WHEEL 
 PA15226 PLAIN AXLE 
36 N/AN/ADUMMY "A" UNIT CABIN (# 473 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 473 LATE MODEL DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 475 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (#s 486 & 21910-2 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 492 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 493 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 495 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 21920-1 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 21922-1 DUMMY PA) 
 N/AN/ADUMMY "A" UNIT CABIN (# 21925-1 DUMMY PA) 
 PA11487@ PORTHOLE LENS (PA #s 473, 475, 486, 492, 493, 495, 21910-2 & 21920-1) 
 PA11488 HEADLIGHT LENS 
 PA11491B@ STEP (2-hole PA #s 473, 475, 486, 492, 493, 495 & 21910-2{ EARLY MODEL}) 
 PA11491A@ STEP (1-hole PA #s {473, 486, 492 & 21910-2 LATE MODELS}, 21920-1 & 21922-1) 
 S187 DRIVE PIN (for step NOT USED #21925-1) 
 PA11493@ AIR VENT 
37 PA12B059 DUMMY "A" UNIT CHASSIS (DUMMY PA #s 473, 475, 486, 492, 493 & 495) 
 N/AN/ADUMMY "A" UNIT CHASSIS (DUMMY PA #s 473 LATE MODEL, 21910-2 & 21920-1) 
 N/AN/ADUMMY "A" UNIT CHASSIS (DUMMY PA #s 21922-1 & 21925-1) 
38 XA11596A WHEEL & CHASSIS ASSEMBLY ( DUMMY PA rear #s 473 & 475) 
 PA11343@ SOLID WHEEL 
 XA11473 INSULATED WHEEL 
 PA10005 PLAIN AXLE 
 N/AN/AWHEEL & CHASSIS ASSEMBLY ( DUMMY PA rear) 
 N/AN/ASOLID WHEEL 
 XA14870 INSULATED WHEEL 
 PA15226 PLAIN AXLE 
 N/AN/AWHEEL & CHASSIS ASSEMBLY ( DUMMY PA rear #s 21922-1 & 21925-1) 
 N/AN/ASOLID WHEEL 
 XA14870 INSULATED WHEEL 
 PA15281 GEAR AXLE 
 PA15A446 CAM 
 N/AN/ATRUCK w/COUPLER ASSEMBLY 
 N/AN/A ( DUMMY PA rear #s 473, 486, 493, 21910-2, 21922-1 & 21925-1) 
 N/AN/ATRUCK W/COLLECTOR & COUPLER ASSEMBLY 
 N/AN/A ( DUMMY PA rear #s 475, 492, 495 & 21920-1) 
 N/AN/ATRUCK w/COUPLER ASSEMBLY 
 N/AN/A ( DUMMY PA front #s 473, 486, 493, 21910-2, 21922-1 & 21925-1) 
 N/AN/ATRUCK w/COLLECTOR & COUPLER ASSEMBLY 
 N/AN/A ( DUMMY PA front #s 475, 492, 495 & 21920-1) 
39 XA13A799 TRUCK SIDE & BOTTOM PLATE ASSEMBLY 
 N/AN/A ( DUMMY PA #s 473, 486, 493, 21910-2, 21922-1 & 21925-1) 
 N/AN/ATRUCK SIDE & COLLECTOR ASSEMBLY ( DUMMY PA #s 475, 492, 495 & 21920-1) 
40 N/AN/APLASTIC HORN 
(#s 41-49) DIESEL ROAR ASSEMBLY PARTS  N/AN/A 
 N/AN/A 
41 N/AN/ADIESEL SOUND GENERATOR 
42 PA10209 BUSHING 
 N/AN/ASPACER (DUMMY PA #s 492 & 495) 
43 PA1131A WASHER 
 W55B WASHER 
44 PA4654 LOCKWASHER 
45 N25 NUT 
46 N/AN/ASCREW 
47 XA14A127@ SPEAKER 
 N/AN/ASPEAKER BRACKET 
 S171 SCREW 
48 PA14A914 CONDENSER 
 N/AN/A 
49 N/AN/ABELL & BRACKET ASSEMBLY 
50 XA15A591RP SPRING & BRACKET ASSEMBLY 
51 N/AN/APIN 
52 N/AN/ATENSION SPRING 
NOT SHOWN: N/AN/A 
 N/AN/A4 CONDUCTOR CABLE 

 

HOW TO ORDER PARTS FROM LIST

Each parts list is comprised of four columns: 

  • Diagram # - The key number from the exploded view.
  • Order Button- Click on this button to add part to your order. 
    ( BLUE button = In stock for immediate shipment, 
    RED button = Currently backordered and will be shipped when available, 
    N/A = This part is not available to order from us. )
  • Part # -The Original American Flyer Part Number ( N/A means part is not available from us.  See our book for these part numbers).
  • Description: It is important to note that where various model numbers used different parts the diagram number will refer to several different part numbers listed sequentially below each other. Information as to which part number was used with which model is provided in the description column.

Having identified the first part you need: 

  1. Click on the order button to select that part. This will take you to the shopping cart screen, which displays part information and allows you to entry the quantity you need to order. 
  2. Type in the quantity needed, click add to order.  
  3. A confirmation screen will display. If the information is correct, click continue order.  This will bring you back to the exploded view 
  4. Select the next part to order.

FOR ASSISTANCE CALL: 1-860-223-0600

PARTS LIST

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