2-Pack 6646781 Backup Alarm Switch for Bobcat Skid Steer Loader 453 463 553 645 450
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Bobcat skid-steer loaders including 450, 453, 463, 553 and 645; Bobcat also catalogs 6646781 across additional loader models, so verify by serial number |
Product Overview
A reverse alarm that does not sound when the loader is shifted into reverse can leave the machine without an important job-site warning. If the alarm itself and wiring test correctly, the reverse/backup switch becomes a likely service point.
These replacement switches restore the electrical trigger that tells the backup alarm when the machine is reversing. They are intended for repairs where the original switch is intermittent, damaged or no longer closes reliably.
Key Features & Performance
- Replacement backup alarm switch for the listed application
- Built for repair of the original component when inspection confirms it is worn, damaged or failed
- Match the original mounting, connections and part number before installation
- Cross-references 6646781
Replaces / Cross-References
- 6646781
What Is Included
2 replacement components as described in the product title.
Fitment Notes
Match the original part number, machine or engine model, mounting points, connector or hose/fitting style, and any serial-number restrictions before ordering. When a manufacturer uses multiple revisions within the same model family, the equipment serial number and original component should be the final fitment check.
Frequently Asked Questions
Is this a genuine OEM part?
No, unless the product page specifically states otherwise. This listing is for a replacement, accessory, upgrade or repair component as described above. OE and interchange numbers are provided for identification and fitment reference.
How should I verify fitment before ordering?
Compare the original part number, machine or engine model, mounting arrangement and electrical or hydraulic connections with the information above. For equipment parts, also verify the machine serial number whenever the manufacturer catalog uses serial breaks.
Part Summary
Keywords: backup alarm switch, Bobcat skid-steer loaders including 450, 453, 463, 553 and 645; Bobcat also catalogs 6646781 across additional loader models, so verify by serial number, 6646781.