10-Pack 5P8500 Ignition Keys for Caterpillar Heavy Equipment
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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.
- Caterpillar heavy equipment using mechanical key 5P8500
- CAT loaders, excavators, dozers, graders, forklifts, and generators with a matching 5P8500 switch
Product Overview
One lost machine key can hold up a crew, while a mixed fleet can make spares disappear quickly. A ten-pack gives an owner enough keys for operators, the shop, and a secured backup location without copying a worn original.
5P8500 is a common mechanical CAT key pattern, but it is not universal to every Caterpillar ignition. These keys do not contain a transponder. Compare the blade, grooves, shoulder, and the original key or switch reference before insertion, and never force a key that binds.
Key Features & Performance
- Ten matching mechanical ignition keys
- Replaces common Caterpillar key 5P8500
- Useful for fleet spares and replacement key rings
- No programming required on matching non-electronic switches
Replaces Part Numbers
- 5P8500
- 5P-8500
Common Uses
- Replacing lost or badly worn equipment keys
- Giving authorized operators separate machine keys
- Keeping spares in a service truck and shop
Technical Specifications
- Product Type: Heavy equipment ignition key pack
- Quantity: 10 keys
- Key Type: Mechanical / non-transponder
- Compatible Brand: Caterpillar
- Condition: New aftermarket keys
Installation & Fitment
- Compare the blade before inserting a key
- Test the first key gently in all switch positions
- Do not use on coded or immobilizer-equipped systems
- Store spare keys securely and label the machine they fit
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Do these keys need programming? A: No. They are mechanical 5P8500-pattern keys.
Q: Will one fit every CAT machine? A: No. Caterpillar has used other key and security systems.
Q: Why replace a key that still turns? A: A worn key can become unreliable and may accelerate wear in an old switch.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
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Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.