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SKU:
NLT2T04974
Ships for free in 2–4 business days.
Cat 24V Heat Start / Ignition Switch 7Y-3918
$46.69
In Stock
$46.69
Sale price
$46.69
Regular price
This is an replacement ignition/start switch for Cat 307/307B/307C/308C mini excavators plus selected 311/312/313/314/315/317/318/320/321/325 excavator configurations using 24V heat-start switch 7Y-3918.; replaces 7Y-3918.
Estimated delivery between
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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.
Compatible equipment / model
| Cat 307/307B/307C/308C mini excavators plus selected 311/312/313/314/315/317/318/320/321/325 excavator configurations using 24V heat-start switch 7Y-3918. |
Product Overview
Intermittent no-start, loss of accessory power or a key switch that only works when held or wiggled can point to worn internal contacts after the battery, starter circuit and wiring are checked.
This replacement switch restores the key-operated start and preheat/control functions used on compatible Cat machines. Match terminal arrangement, voltage and original switch before installation.
Key Features & Performance
- 24-volt Cat heat-start/ignition switch
- 6-screw terminal configuration
- Activates the engine preheating/start circuit
- Cat part number 7Y-3918
Replaces / Cross-References
- 7Y-3918
What Is Included
1 replacement component for this SKU unless the product images or option selection state otherwise.
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, fuel 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: ignition/start switch, Cat 307/307B/307C/308C mini excavators plus selected 311/312/313/314/315/317/318/320/321/325 excavator configurations using 24V heat-start switch 7Y-3918., 7Y-3918.