How do I confirm pilotpart166578 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

12V Shut-Off Solenoid Valve 3903575 for Cummins Engine B3.3 QSB3.3

For Cummins Stop Solenoid

Stop Solenoid 3903575 for Cummins B3.3 Engine

OEM / REF: 3903575SKU: pilotpart166578

12V Shut-Off Solenoid Valve 3903575 for Cummins Engine B3.3 QSB3.3 is a Stop Solenoid replacement part indexed for CUMMINS · B3.3 and CUMMINS · QSB3.3. Match OEM part number 3903575 and confirm fitment for Cummins Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$97.99USD/EA

~~$11,499.00~~Save 99%

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.

Stop Solenoid Description

This Stop Solenoid is indexed for CUMMINS · B3.3; CUMMINS · QSB3.3. Compare reference number 3903575 against the label on your existing Cummins component before ordering.

Before checkout, compare OEM part number 3903575, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

3903575

Applications

CUMMINS · B3.3
CUMMINS · QSB3.3

Specifications

Voltage	12V
Part Number	3903575

Fitment Notes

Brand or application signal: Cummins 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.