Caterpillar Part reference
This Caterpillar catalog listing for part number 0030633 is an elbow-flared fitting, a right-angled connector used to join flared fluid lines in engine and machine plumbing. Catalog records associate it with a conversion arrangement in the electrical and starting system for a Caterpillar 3516 and with a compressor line group in the basic engine section for a Caterpillar C7. These are catalog associations only, so confirm the recorded conditions before relying on them.
Recorded applications
Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.
Catalog context
Caterpillar 3516
Check the signed-in Part Book for available diagrams and the complete catalog breakdown.
| Part number | Description |
|---|---|
| 0030633 | elbow-flared (current part) |
| 03***63 | adapter - 45degrees - 8 valve ports p, t, c1, c2; (45°) (-8, valve ports, p, t, c1, c2) |
| 03***82 | union-flared |
| 03***59 | connector |
Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.
Browse Caterpillar modelsGeneral guidance
In general, a flared elbow fitting bends a line through a right angle and seals against a matching flare cone at its end, which is common in hydraulic, fuel, air and lubrication circuits on heavy equipment. The term flared refers to a line end that is widened into a cone so a nut can compress it against a mating fitting.
Use the existing part number 0030633 when ordering this elbow-flared fitting. Before purchasing, compare the catalog associations listed on this page with your engine model, serial number and the surrounding line arrangement, because a catalog association does not confirm compatibility for every machine configuration.
Catalog references
Caterpillar C7