Caterpillar Part reference
This Caterpillar catalog entry, part number 0303978, is listed as a connector-filtered fuel to adapter. The catalog records it in association with the Caterpillar D350E II, within basic engine assemblies for cylinder head groups. Confirm the recorded conditions before ordering, since a catalog association does not establish fitment for every configuration.
Recorded applications
Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.
Catalog context
Model photoCheck the signed-in Part Book for available diagrams and the complete catalog breakdown.
| Part number | Description |
|---|---|
| 00***17 | elbow |
| 0303978 | connector-filtered fuel to adapter (current part) |
| 10***25 | stud; (3/8-16x1.25-in) |
| 10***03 | kit; (receptacle) (3-pin) (includes receptacle as & wedge) |
Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.
View model pageGeneral guidance
In general, a fuel adapter is a fitting that links one fuel line or component to another, allowing fuel to pass through a defined connection point. The term connector-filtered suggests a fuel-routing fitting associated with a filtering arrangement, but its exact construction and role should be checked against the catalog.
Part number 0303978 is the number this page describes, and it should be used as recorded in the catalog. Before ordering, check the catalog's recorded model, group, subgroup and any configuration conditions against your machine's specifications.
Catalog references
Model photo