Vehicle Compatibility

• Equipment Brand: Caterpillar (CAT)

• Part Type: Diesel Fuel Injector

• OE Reference Number: 398-1507

• Alternative Number Format: 3981507

• Engine Model: C7.1

• Equipment Type: Hydraulic Excavator

• Listed Equipment Models: 320D2, E320D2, 336D, E323D

Compatibility Notes

• Caterpillar's official parts catalog identifies 398-1507 as a fuel injector but does not currently provide a confirmed compatible-model list.

• Aftermarket listings associate this reference number with selected C7.1 engine applications, including 320D2 and 336D excavators.

• Compatibility with E323D has not been independently confirmed through the official Caterpillar catalog.

• Verify the engine model, machine serial number and original injector number before ordering.

• Do not assume that all machines within the listed model series use the same injector.

FAQ

Q1: Which engine is fuel injector 398-1507 listed for?

It is listed by aftermarket parts suppliers for selected Caterpillar C7.1 engine applications.

Q2: What is the alternative format of part number 398-1507?

3981507 is the same number written without the hyphen.

Q3: Is this injector compatible with the CAT 320D2 and 336D?

Aftermarket listings identify these models as applications. Confirm compatibility against the engine configuration and machine serial number before ordering.

Q4: Is this injector compatible with the E323D excavator?

Some aftermarket listings include E323D, but official model-specific compatibility has not been