How do I confirm pilotpart285109 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 270-6252 2706252 for Caterpillar 303CCR 304C 304CCR 303.5DCR 305DCR 904H 904B

For Caterpillar Water Pump

Water Pump 280-3730 for Caterpillar Mitsubishi S3Q2 Engine

OEM / REF: 280-3730SKU: pilotpart285109

Engine Water Pump 270-6252 2706252 for Caterpillar 303CCR 304C 304CCR 303.5DCR 305DCR 904H 904B is a Water Pump replacement part indexed for Caterpillar 303.5CCR · Mitsubishi S3Q2 and Caterpillar 303.5D · Mitsubishi S3Q2, with 3 application records on file. Match OEM part number 280-3730 and confirm fitment for Cate...

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

$128.99USD/EA

~~$18,399.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 23 – Oct 30
10	Oct 21 – Oct 28
50	Oct 19 – Oct 26

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 303.5CCR · Mitsubishi S3Q2; Caterpillar 303.5D · Mitsubishi S3Q2; Caterpillar 303.5DCR; Caterpillar 303CCR · Mitsubishi S3Q2. Compare reference number 280-3730 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 270-6252. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

280-3730 270-6252

Applications

Caterpillar 303.5CCR · Mitsubishi S3Q2
Caterpillar 303.5D · Mitsubishi S3Q2
Caterpillar 303.5DCR
Caterpillar 303CCR · Mitsubishi S3Q2
Caterpillar 304C
Caterpillar 304CCR · Mitsubishi S4Q2T
Caterpillar 304DCR · Mitsubishi S3Q2
Caterpillar 305.5D · Mitsubishi S4Q2T
Caterpillar 305CCR · Mitsubishi S4Q2T
Caterpillar 305D · Mitsubishi S4Q2T
Caterpillar 305DCR
Caterpillar 904B · Mitsubishi S4Q2T
Caterpillar 904H · Mitsubishi S4Q2T

Specifications

Gasket	Included
Part Number	280-3730, 270-6252, 2803730, 2706252

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.