How do I confirm pilotpart427678 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

Engine Water Pump 5I-7773 5I7773 for Caterpillar Excavator CAT 311 312 Engine 3064

For Caterpillar Water Pump

Water Pump CA5I-7773 for Caterpillar 3064 Engine

OEM / REF: CA5I-7773SKU: pilotpart427678

Engine Water Pump 5I-7773 5I7773 for Caterpillar Excavator CAT 311 312 Engine 3064 is a Water Pump replacement part indexed for Caterpillar 311 · 3064 and Caterpillar 312 · 3064, with 3 application records on file. Match OEM part number CA5I-7773 and confirm fitment for Caterpillar Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$132.99USD/EA

~~$18,899.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 9 – Aug 16
10	Aug 7 – Aug 14
50	Aug 5 – Aug 12

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.

Water Pump Description

This Water Pump is indexed for Caterpillar 311 · 3064; Caterpillar 312 · 3064; Caterpillar 311 · 3064; Caterpillar 312 · 3064. Compare reference number CA5I-7773 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 5I-7773. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

CA5I-7773 5I-7773

Applications

Caterpillar 311 · 3064
Caterpillar 312 · 3064
Caterpillar 311 · 3064
Caterpillar 312 · 3064

Specifications

Part Number	CA5I-7773, 5I-7773, 5I7773

Fitment Notes

Brand or application signal: Caterpillar Engine Spare Parts
Product family: Water Pump
System category: Engine Spare Parts > Lubrication & Cooling Systems > Water Pump
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.