How do I confirm pilotpart172493 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

Stop Electromagnet Stop Solenoid 439-7591 4397591 for Caterpillar CAT 303E CR 303ECR

For Caterpillar Stop Solenoid

Stop Solenoid CA4397591 for Caterpillar

Q: What part numbers are associated with this Stop Solenoid?

CA4397591, 439-7591, 303E, 303ECR, 303.5C, 303.5D, 303.5E, 303.5ECR, 303.5E2CR, 304E, 304ECR, 304DCR

OEM / REF: CA4397591SKU: pilotpart172493

Stop Electromagnet Stop Solenoid 439-7591 4397591 for Caterpillar CAT 303E CR 303ECR is a Stop Solenoid replacement part indexed for Part Number and Caterpillar CAT Excavator: 303E CR, 303ECR NOTE: Default voltage 12v, if you need 24v, please send to [email protected], with 3 application records on file. Match OEM part numb...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$115.12USD/EA

~~$29,899.00~~Save 100%

Estimated delivery by quantity

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

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.

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

Stop Solenoid Description

This Stop Solenoid is indexed for Part Number; Caterpillar CAT Excavator: 303E CR, 303ECR NOTE: Default voltage 12v, if you need 24v, please send to [email protected]; Caterpillar s: Excavator:Caterpillar CAT 303CR, 303 CCR, 303ECR, 303.5C , 303.5 CCR, 303.5D, 303.5E, 303.5ECR, 303.5E2CR, 304E, 304ECR, 304DCR, 303.5CCR, 303.5DCR, 304E2CR, 303CCR; Caterpillar s:For Caterpillar CAT Excavator:303ECR, 303E CR. Compare reference number CA4397591 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 439-7591, 303E, 303ECR. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

CA4397591 439-7591303E303ECR 303.5C 303.5D 303.5E 303.5ECR 303.5E2CR304E304ECR 304DCR

Applications

Part Number
Caterpillar CAT Excavator: 303E CR, 303ECR NOTE: Default voltage 12v, if you need 24v, please send to [email protected]
Caterpillar s: Excavator:Caterpillar CAT 303CR, 303 CCR, 303ECR, 303.5C , 303.5 CCR, 303.5D, 303.5E, 303.5ECR, 303.5E2CR, 304E, 304ECR, 304DCR, 303.5CCR, 303.5DCR, 304E2CR, 303CCR
Caterpillar s:For Caterpillar CAT Excavator:303ECR, 303E CR

Specifications

Part Number	CA4397591, 439-7591, 4397591

Fitment Notes

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