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CAT C9 Excavator ECM Controller 24V OEM 478-7932 20R-8181, OEM/reference 478-7932 20R-8181 · CAT C9, 24V, product view 1

5 verified product photos · Select a thumbnail to change the main image.

Controllers & Displays

CAT C9 Excavator ECM Controller 24V OEM 478-7932 20R-8181

OEM / reference478-7932 20R-8181 · CAT C9
Specification24V
Catalog ID51138426

24V reference 478-7932 20R-8181. Compatibility references include LC51XX, SR4B, IT62H and 134 additional models listed below. Compare the part number, connector layout, mounting points and the original unit before ordering; machine serial range can affect fitment.

OEM
478-7932 20R-8181
Feature
ECM Controller
VDC
24V
Engine Model
CAT C9
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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

  • 478-7932
  • 20R-8181
  • 478-7932 20R-8181

Search with or without hyphens. Match the complete number on the original part.

Product summary

24V

Category
Controllers & Displays
Catalog ID
51138426
Photo views
5

Before ordering

Confirm these details

  • Match the complete part number on the original controller label.
  • Compare the front-panel button layout and display position with the product photos.
  • Compare the rear connector count, connector shape and keying before installation.
  • Confirm the exact machine model and serial range; model-family names alone are not sufficient.

Machine fitment

Compatible model references

137 model references

  • LC51XX
  • SR4B
  • IT62H
  • 773GC
  • 12M
  • 12K
  • 14
  • 160K
  • 120K
  • 160M
  • 140M
  • 2
  • 16M
  • 160
  • 140K
  • 140G
  • 14L
  • 150
  • 14M
  • 140
  • D7R
  • D6R III
  • D8T
  • D8N
  • D6R STD
  • D7R LGP
  • D6R XL
  • D6R II
  • D6R
  • D6T
  • D6R LGP
  • D7R XR
  • 535C
  • 545C
  • 525C
  • BG-2455D
  • AP-1055D
  • AP-1000D
  • BG-260D
  • 2390
  • 2391
  • 552
  • 511
  • 541
  • 2290
  • 522
  • 521
  • 521B
  • 532
  • 2590
  • 522B
  • 551
  • 2491
  • PL87
  • 587T
  • 336D2 LXE
  • 336D2 L
  • 340D2 L
  • 336D2 GC
  • 3101
  • 345D L
  • 336D2 XE
  • 395
  • 336D2
  • 374
  • 336D2 L XE
  • 633E II
  • 623G
  • 621G
  • 627G
  • 631E
  • 631G
  • 637G
  • 637E
  • DE600SGC
  • DE450GC
  • C15 GEN SE
  • D550GC
  • C13GENSET
  • DE605GC
  • C9 GEN SET
  • D350GC
  • DE500SGC
  • DE715GC
  • XQP300
  • D400GC
  • D600 GC
  • C18
  • C15
  • C13
  • C9
  • D450GC
  • DE450SGC
  • D250GC
  • DE660GC
  • D300GC
  • D500GC
  • RM-300
  • C9 INDUSTRIAL
  • 973C
  • 973D
  • C11
  • 815F II
  • 815B
  • 740
  • 730
  • 814F II
  • PM820
  • PM825
  • PM822
  • PM620
  • PM622
  • PM-102
  • 816F II
  • 966F II
  • 972H
  • 962H
  • 950H
  • 980C
  • 980F
  • 980H
  • 980G
  • 966D
  • 966F
  • 966E
  • 966H
  • RM800
  • RM600
  • RM500
  • 725
  • 735 OEM
  • 735
  • MD5150C
  • MD6290
  • MD5125
  • 3406B
  • 3406C

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

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