Excavator Spare Parts
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Cab HVAC blower-motor assembly identified by reference KHR18640. Published application records support Case CX75SR and CX80 excavators and also list CX135SR and CX225SR serial families. Five exact owned photographs show the same twin squirrel-cage wheels, centre motor, two-wire lead and two-pin connector. The visible motor label states DC24V, independently confirming the 24 VDC rating. KHR18730 and KHR3999 occur in published cross-reference lists but are not presented as unconditional direct interchanges because housings and serial ranges can differ. Confirm KHR18640, wheel dimensions, rotation, motor label, connector, housing clearance and machine serial before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Cab blower-motor reference | KHR18640 |
| Published Related Blower Reference | Verify wheel, housing and serial; not unconditional interchange | KHR18730 |
| Published Related Blower Reference | Verify wheel, housing and serial; not unconditional interchange | KHR3999 |
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
4 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 Published Case excavators: CX75SR / CX80, Additional published Case families: CX135SR / CX225SR; verify serial range, Source-recorded Sumitomo families: SH75X-3B / SH135X-3B / SH225X-3B; verify parts book, Fitment limitation: Confirm wheels, rotation, label, connector, clearance and machine serial. Confirm the complete part number and machine serial range before ordering.
Related assembly numbers (not direct interchanges): KHR18730, KHR3999.
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.
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