Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Source catalog | 478-7932 |
| Unverified Reference - Do Not Order By This Number Alone | Source catalog | 20R-8181 |
5 product photos · Select a thumbnail to change the main view.
ECM Controllers & Monitors
478-7932 ECM Controller for CAT C9
OEM / reference478-7932
SpecificationECM Controller
Catalog ID51138426
ECM Controller identified by primary reference 478-7932. The cited technical sources record 137 application references. Confirm the complete number, connector or mounting arrangement, and machine serial range before ordering.
Fitment status: Verified · Checked 2026-07-22- Product Type
- ECM Controller
- Product Brand
- EexcavaStart
- Model Number
- 478-7932 20R-8181
- Engine Model
- CAT C9
- Condition
- New replacement part
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
Search with or without hyphens. Match the complete number on the original part.
Product summary
ECM Controller
- Category
- ECM Controllers & Monitors
- Catalog ID
- 51138426
- Photo views
- 5
Before ordering
Confirm these details
- Match the complete part number on the original component label.
- Compare the front layout and visible configuration with the product photos.
- Compare connector count, connector shape and keying before installation.
- Confirm the exact machine model and serial range before ordering.
Machine fitment
Compatible model references
80 model references
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Common questions about 478-7932
Which machines use 478-7932?
Recorded compatible model references include Recorded application: LC51XX, Recorded application: SR4B, Recorded application: IT62H, Recorded application: 773GC, Recorded application: 12M, Recorded application: 12K, Recorded application: 14, Recorded application: 160K and 72 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.
What part numbers cross-reference with 478-7932?
The recorded reference family includes 478-7932, 20R-8181, 4787932.
How do I confirm 478-7932 before ordering?
Match the complete part number on the original component label. Compare the front layout and visible configuration with the product photos. Compare connector count, connector shape and keying before installation. Send clear photos of the original unit and connector layout when requesting a quote.
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