How do I confirm pilotpart821651 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

Fuel Injector 233-1161 for Caterpillar CAT Engine 3066 Excavator 318C 319C 320C 320D 321C 323D

For Caterpillar Injectors & Nozzle

Injectors & Nozzle CA2331161 for Caterpillar

Q: What part numbers are associated with this Injectors & Nozzle?

CA2331161, 233-1161, 791Z48-4530C, 319C, 320C, 320D, 321C, 323D

OEM / REF: CA2331161SKU: pilotpart821651

Fuel Injector 233-1161 for Caterpillar CAT Engine 3066 Excavator 318C 319C 320C 320D 321C 323D is a Injectors & Nozzle replacement part for Caterpillar Engine Spare Parts, categorized under Engine Spare Parts > Injectors & Nozzle. Use OEM part number CA2331161 and confirm machine model, engine model, and serial deta...

Stock: In stock
Condition: New
Fitment: Caterpillar Engine Spare Parts
Category: Injectors & Nozzle

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$74.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 22 – Oct 29
10	Oct 20 – Oct 27
50	Oct 18 – Oct 25

Estimates from today; confirm exact lead time before payment.

Quantity

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

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

Injectors & Nozzle Description

This Injectors & Nozzle is indexed for Caterpillar s: Fit For Caterpillar CAT Excavator: 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN, 320C U, 320C LU, 318C L, 318C LN, 321C LCR, 319C LN, 320C LRR, 323D, 323D LN, 323D S, 320D RR. Compare reference number CA2331161 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 233-1161, 791Z48-4530C, 319C. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

CA2331161 233-1161 791Z48-4530C319C320C320D321C323D

Applications

Caterpillar s: Fit For Caterpillar CAT Excavator: 318C, 319C, 320C, 320C FM, 320C L, 320D, 320D LRR, 321C, 323D L, 323D LN, 320C U, 320C LU, 318C L, 318C LN, 321C LCR, 319C LN, 320C LRR, 323D, 323D LN, 323D S, 320D RR

Fitment Notes

Brand or application signal: Caterpillar Engine Spare Parts
Product family: Injectors & Nozzle
System category: Engine Spare Parts > Fuel System > Injectors & Nozzle
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.