Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Cat Part Number | Official fuel injector group | 387-9433 |
| Same-number Formatting Variant | Search alias only | 3879433 |
Excavator Engine Parts
387-9433 Fuel Injector Group for Cat C9 330D 336D
5 product photos · Swipe on mobile, or hover and select a thumbnail.
OEM / reference387-9433
SpecificationFuel Injector Group
Catalog ID53318654
387-9433 is identified by Cat as a fuel injector group for C9 engine applications. The official model record includes 330D and 336D excavator variants, 627G/637G wheel scrapers and other C9-powered equipment. The earlier broad third-party cross-reference family is not presented as direct interchange because Cat's current exact-number page does not establish those relationships. Confirm the full number, injector calibration and engine serial range before ordering.
- Product Type
- Fuel Injector Group
- Length
- 14.2 in (official Cat specification)
- Height
- 5.3 in (official Cat specification)
- Condition
- New replacement part supplied against 387-9433 reference
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
Primary number
Formatting alias
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Fuel Injector Group
- Category
- Excavator Engine Parts
- Catalog ID
- 53318654
- Photo views
- 5
Before ordering
Confirm these details
- Match the complete part number on the original component.
- Compare connectors, mounting points and visible dimensions with the product photos.
- Confirm the exact machine or engine model and serial range before ordering.
Machine fitment
Compatible model references
4 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 387-9433
Which machines use 387-9433?
Recorded compatible model references include Official Cat engine family: C9, Official Cat excavators: 330D / 330D L / 330D LN / 330D MH / 330D FM / 336D / 336D2, Other official equipment: 627G / 637G wheel scrapers; 814F II / 815F II / 816F II, Fitment limitation: Confirm 387-9433, injector calibration and engine serial range. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for 387-9433?
Formatting aliases for the same number: 3879433.
How do I confirm 387-9433 before ordering?
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
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