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Excavator Engine Parts

511-7975 Common Rail Fuel Injection Pump for Cat C9.3

OEM / reference511-7975
SpecificationHigh-Pressure Common Rail Fuel Injection Pump
Catalog ID88924148

High-pressure common-rail fuel injection pump identified by Cat number 511-7975 for C9.3 engines. The official application record includes 973K track loaders, D6T and D7E tractors, 12M/140M/160M graders, 966/972 loaders and C9.3 industrial or generator applications. Confirm the engine serial prefix, pump label, gear, ports and control connections before ordering.

Fitment status: Verified · Checked 2026-07-29
Product Type
Common Rail Fuel Injection Pump
Product Brand
EexcavaStart
Engine Family
Cat C9.3
Fuel System
High-pressure common rail
Official Overall Length
11.65 in
Condition
New replacement assembly
Required Comparison
Engine serial, pump label, gear, ports and control connections

Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

RelationshipReference familyNumber
Primary Equipment Part NumberCat common-rail pump number511-7975
Same-number Formatting VariantCompact Cat formatting5117975
Cataloged Pump Family NumberEarlier / related C9.3 pump family; verify serial341-8700
Cataloged Pump Family NumberEarlier / related C9.3 pump family; verify serial369-6680
Cataloged Pump Family NumberEarlier / related C9.3 pump family; verify serial375-5244

Evidence record

Source
Exact-reference evidence retained for internal audit
Evidence grade
manufacturer-supported
Checked
2026-07-29

Source URLs, catalog files and local evidence paths are stored in the protected product audit record and are not public outbound links.

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
  • 511-7975
Formatting alias
  • 5117975
Other documented relationship
  • 341-8700
  • 369-6680
  • 375-5244

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

High-Pressure Common Rail Fuel Injection Pump

Category
Excavator Engine Parts
Catalog ID
88924148
Photo views
8

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

  • Engine family: Cat C9.3
  • Official equipment examples: Cat 973K / D6T / D7E / 12M / 140M / 160M / 966 / 972
  • Additional official use: C9.3 industrial, generator-set and marine applications
  • Fitment limitation: Confirm 511-7975, engine serial prefix and pump label

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 511-7975

Which machines use 511-7975?

Recorded compatible model references include Engine family: Cat C9.3, Official equipment examples: Cat 973K / D6T / D7E / 12M / 140M / 160M / 966 / 972, Additional official use: C9.3 industrial, generator-set and marine applications, Fitment limitation: Confirm 511-7975, engine serial prefix and pump label. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 511-7975?

Formatting aliases for the same number: 5117975.

How do I confirm 511-7975 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.

Continue comparing recovered references from the same system.

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