How do I confirm pilotpart182937 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Alternator ALT31314 for Caterpillar CAT Engine 3046 3064 3066 Excavator 311 311B 311C 312 312B 312C

For Caterpillar Alternator

Alternator ALT31314 for Caterpillar 910G

OEM / REF: ALT31314SKU: pilotpart182937

Alternator ALT31314 for Caterpillar CAT Engine 3046 3064 3066 Excavator 311 311B 311C 312 312B 312C is a Alternator replacement part indexed for Caterpillar 910G and Caterpillar 311, with 3 application records on file. Match OEM part number ALT31314 and confirm fitment for Caterpillar Engine Spare Parts before order...

Stock: In stock
Condition: New
Fitment: Caterpillar Engine Spare Parts
Category: Alternator

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$391.99USD/EA

~~$63,199.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 24 – Oct 31
10	Oct 22 – Oct 29
50	Oct 20 – Oct 27

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Alternator Description

This Alternator is indexed for Caterpillar 910G; Caterpillar 311; Caterpillar 311B; Caterpillar 311C. Compare reference number ALT31314 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: CA5I8085, 5I-8085. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

ALT31314 CA5I8085 5I-8085

Applications

Caterpillar 910G
Caterpillar 311
Caterpillar 311B
Caterpillar 311C
Caterpillar 311C U
Caterpillar 312
Caterpillar 312B
Caterpillar 312B L
Caterpillar 312C
Caterpillar 312C L
Caterpillar 314C
Caterpillar 314C CR
Caterpillar 314C LCR
Caterpillar 315
Caterpillar 315L
Caterpillar 315B
Caterpillar 315B L
Caterpillar 315B FM L
Caterpillar 315C
Caterpillar 315C L
Caterpillar 317B L
Caterpillar 317B LN
Caterpillar 318B
Caterpillar 318B L
Caterpillar 318B LN
Caterpillar 318C
Caterpillar 318C L
Caterpillar 318C LN
Caterpillar 319C
Caterpillar 319C LN
Caterpillar 320
Caterpillar 320 L
Caterpillar 320B
Caterpillar 320B L
Caterpillar 320B U
Caterpillar 320B LU
Caterpillar 320B N
Caterpillar 320C
Caterpillar 320C L
Caterpillar 320C U
Caterpillar 320C LU
Caterpillar 320C LN
Caterpillar 320C S
Caterpillar 320C FM
Caterpillar 320N
Caterpillar 321B
Caterpillar 321B CR
Caterpillar 321B LCR
Caterpillar 322B L
Caterpillar
Caterpillar
Caterpillar

Specifications

Voltage	24V
Amperage	50A
Part Number	ALT31314, CA5I8085, 5I-8085, 5I8085

Fitment Notes

Brand or application signal: Caterpillar Engine Spare Parts
Product family: Alternator
System category: Engine Spare Parts > Engine Auxiliary Components > Alternator
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.