How do I confirm pilotpart864275-8521489121528 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

Speed Sensor 3971994 for Cummins Engine 4BT 3.9L 6BT 5.9

For Cummins Speed Sensor

Speed Sensor C3971994 for Cummins

OEM / REF: C3971994SKU: pilotpart864275-8521489121528

Speed Sensor 3971994 for Cummins Engine 4BT 3.9L 6BT 5.9 is a Speed Sensor replacement part for Cummins Electrical Parts, categorized under Electrical Parts > Speed Sensor. Use OEM part number C3971994 and confirm machine model, engine model, and serial details before checkout.

Stock: In stock
Condition: New
Fitment: Cummins Electrical Parts
Category: Speed Sensor

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$32.26USD/EA

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

Confirm fitment before ordering →

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

Speed Sensor Description

This Speed Sensor is indexed for Cummins s: Fit for Cummins Engine:4BT 3.9L,6BT 5.9,B. Compare reference number C3971994 against the label on your existing Cummins component before ordering.

Additional cross references on file: 3971994. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

C3971994 3971994

Applications

Cummins s: Fit for Cummins Engine:4BT 3.9L,6BT 5.9,B

Fitment Notes

Brand or application signal: Cummins Electrical Parts
Product family: Speed Sensor
System category: Electrical Parts > Indicators & Sensing Components > Speed Sensor
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.