Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Cat official reference | 456-3493 |
| Same-number Formatting Variant | Punctuation-normalized alias | 4563493 |
| Remanufactured Alternative | Cat official alternate part | 20R-5036 |
Excavator Engine Parts
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456-3493 is a common rail fuel injector. The manufacturer lists 20R-5036 as the remanufactured alternative and records applications including 336E excavators, D6T/D7E tractors, 12M/140M/160M graders and 966K/972K loaders. Confirm the complete number and serial range.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Cat official reference | 456-3493 |
| Same-number Formatting Variant | Punctuation-normalized alias | 4563493 |
| Remanufactured Alternative | Cat official alternate part | 20R-5036 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
5 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
Recorded compatible model references include Excavator models: CAT 336E, 336E L, 336E LN and 336E LH, Track-type tractor models: CAT D6T XL, D6T XW, D6T LGP and D7E, Motor grader models: CAT 12M 2, 140M 2 and 160M 2, Wheel loader models: CAT 966K, 966K XE and 972K, Fitment limitation: Confirm engine arrangement and machine serial range. Confirm the complete part number and machine serial range before ordering.
Formatting aliases for the same number: 4563493. Remanufactured references: 20R-5036.
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 verified references from the same system.