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8H5306 8H-5306 8398 7N0718 Master Disconnect Key for Caterpillar CAT
$22.99
Sale price
$22.99
Regular price
Available to Order
This Master Disconnect Key is a replacement key compatible with Caterpillar equipment and matches OEM part numbers 8H5306, 8H-5306, 8398, and 7N0718.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This master disconnect key is designed to safely isolate the battery in Caterpillar heavy machinery. It allows operators to quickly disconnect the electrical system during maintenance or storage, preventing battery drain and accidental starts. This key is ideal for fleet managers and equipment operators needing a reliable replacement for lost or worn keys.
Key Features & Performance
- Precision-molded to match OEM specifications for a secure fit
- Durable plastic construction resists wear from repeated use
- Color-coded for easy identification in toolboxes or key chains
- Compatible with Caterpillar master disconnect switches using key pattern 8H5306
- Pack of two keys provides a spare for backup or multiple operators
Fitment & Compatibility
- Caterpillar heavy equipment including tractors, loaders, excavators, and generators
- Models using master disconnect switch with key code 8H5306, 8398, or 7N0718
- Replaces OEM part numbers 8H-5306, 8H5306, 8398, and 7N0718
Common Uses
- Disconnecting battery power during equipment servicing or repair
- Preventing accidental engine starts when machinery is parked
- Storing equipment for extended periods to avoid battery discharge
- Providing a quick emergency shutoff in field operations
Technical Specifications
- Part Number(s): 8H5306, 8H-5306, 8398, 7N0718
- Material: Durable plastic
- Quantity: 2 keys per package
Frequently Asked Questions
Q: Will this key work with my Caterpillar D6 dozer? A: This key is designed for Caterpillar master disconnect switches using the 8H5306 key pattern; check your machine's switch for compatibility.
Q: What if the key does not turn smoothly in the switch? A: Ensure the switch is clean and lubricated; if the issue persists, the key may not match your specific switch model.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.