How do I confirm pilotpart437562 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 280-3787 Fits For Caterpillar 303.5D 303C CR 304C 304C CR 305.5D 303.5C 304D CR 305C CR 305D CR

For Caterpillar Alternator

Alternator 280-3787 for Caterpillar 303.5C

Q: What part numbers are associated with this Alternator?

280-3787, 400-48084, A7T02077C, 32A68-00300, 32A68-00301, 32A68-00302, 12562, A7T02077, A7T02077A

OEM / REF: 280-3787SKU: pilotpart437562

Alternator 280-3787 Fits For Caterpillar 303.5D 303C CR 304C 304C CR 305.5D 303.5C 304D CR 305C CR 305D CR is a Alternator replacement part indexed for Caterpillar 303.5C and Caterpillar 303.5D, with 3 application records on file. Match OEM part number 280-3787 and confirm fitment for Caterpillar Engine Spare Parts...

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

$124.99USD/EA

~~$16,899.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 21 – Aug 28
10	Aug 19 – Aug 26
50	Aug 17 – Aug 24

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 303.5C; Caterpillar 303.5D; Caterpillar 303C CR; Caterpillar 304C CR. Compare reference number 280-3787 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 400-48084, A7T02077C, 32A68-00300. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

280-3787 400-48084 A7T02077C 32A68-00300 32A68-00301 32A68-0030212562A7T02077 A7T02077A

Applications

Caterpillar 303.5C
Caterpillar 303.5D
Caterpillar 303C CR
Caterpillar 304C CR
Caterpillar 304D CR
Caterpillar 305.5D
Caterpillar 305C CR
Caterpillar 305D CR

Specifications

Voltage	12V
Amperage	50A
Rotation	CW
Clock	11
Pulley Class	V1
Regulator	IR
Fan Type	IF
Part Number (ARROWHEAD)	400-48084
Part Number (ARROWHEAD (OEM) (OLD))	A7T02077C
Part Number (CATERPILLAR)	280-3787
Part Number (CLARK)	32A68-00300, 32A68-00301, 32A68-00302
Part Number (J & N)	400-48084
Part Number (LESTER)	12562
Part Number (MITSUBISHI)	A7T02077, A7T02077A, A7T02077C
Part Number	ARROWHEAD: 400-48084 ARROWHEAD (OEM) (OLD): A7T02077C CATERPILLAR: 280-3787 CLARK: 32A68-00300, 32A68-00301, 32A68-00302 J & N: 400-48084 LESTER: 12562 MITSUBISHI: A7T02077, A7T02077A, A7T02077C

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.