Ignition Switch 7Y-3918 for Caterpillar 3054 Engine

OEM / REF: 7Y-3918SKU: pilotpart144514

Ignition Switch 6 Wires With 2 Keys 7Y-3918 For Caterpillar Excavator CAT 307 311 312 315 317 320 is a Ignition Switch replacement part indexed for Caterpillar 303 and Caterpillar 305, with 3 application records on file. Match OEM part number 7Y-3918 and confirm fitment for Caterpillar Electrical Parts before ordering.

Stock
In stock
Condition
New
Fitment
Caterpillar Electrical Parts
  • Fitment support before you order
  • Worldwide delivery options

Ignition Switch Description

This Ignition Switch is indexed for Caterpillar 303; Caterpillar 305; Caterpillar 307 · 3054; Caterpillar 311. Compare reference number 7Y-3918 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: CA7Y-3918, 1411-52, 307B. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Applications

  • Caterpillar 303
  • Caterpillar 305
  • Caterpillar 307 · 3054
  • Caterpillar 311
  • Caterpillar 312 · 3054
  • Caterpillar 315 · 3054
  • Caterpillar 317 · 3054
  • Caterpillar 320
  • Caterpillar 307B · 4M40
  • Caterpillar 307C · 4M40
  • Caterpillar 307C SB · 4M40
  • Caterpillar 308B
  • Caterpillar 308C
  • Caterpillar 308C CR · 4M40
  • Caterpillar 311-A
  • Caterpillar 311C
  • Caterpillar 311C U · 3064
  • Caterpillar 312-A
  • Caterpillar 312B · 3054
  • Caterpillar 312B L · 3054
  • Caterpillar 313B
  • Caterpillar 313B CR
  • Caterpillar 313C
  • Caterpillar 314C
  • Caterpillar 314C CR · 3064
  • Caterpillar 314C LCR · 3064
  • Caterpillar 315-A
  • Caterpillar 315-A L
  • Caterpillar 315B
  • Caterpillar 315B L · 3054
  • Caterpillar 317 N
  • Caterpillar 317-A
  • Caterpillar 317-A N
  • Caterpillar 317B
  • Caterpillar 317B L · 3046
  • Caterpillar 317B LN · 3046
  • Caterpillar 317N · 3054
  • Caterpillar 318B
  • Caterpillar 318B L · 3046
  • Caterpillar 318B LN · 3046
  • Caterpillar 318B N
  • Caterpillar 320 L
  • Caterpillar 320-A
  • Caterpillar 320-A L
  • Caterpillar 320-A N
  • Caterpillar 320N
  • Caterpillar 321C
  • Caterpillar 321C LCR · 3066
  • Caterpillar 325C
  • Caterpillar 325C LCR · 3126B
  • Caterpillar TR13
  • Caterpillar Caterpiller CAT 307 307B 307C 308C 311 311C 312 312BL 313B 314C 315 315BL 317 317BLN 318B 320 E320 320B 320L 320N 321C 325C Excavator
  • Caterpillar s:for Caterpillar Excavator: 307, 307B, 307C, 308C, 311, 311C, 312, 312B L, 313B, 314C, 315, 315B L, 317, 317B LN, 318B, 320, 320 L, 320N, 321C, 325C

Specifications

Connector Type6-screw terminal
Voltage24V
Part Number7Y-3918, 7Y3918

Fitment Notes

Brand or application signal
Caterpillar Electrical Parts
Product family
Ignition Switch
System category
Electrical Parts > Switches > Ignition Switch
Recommended verification
OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability
InStock
Shipping
Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns
Returns are easier when fitment is confirmed before ordering.
B2B support
Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.

Confirm fitment

Send machine details before ordering high-risk parts.