How do I confirm pilotpart801619-8487220969720 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

Tensioner Belt 3914086 for Cummins Engine 6CT 4BT 6BT

For Cummins Belt Tensioner

Belt Tensioner 3914086 for Cummins

Q: What part numbers are associated with this Belt Tensioner?

3914086, 5333477, 3937553, 3934818, NT855, CM800, QSB6.7, CM850, QSF2.8, 4BTA, PC200-7, PC220-6

OEM / REF: 3914086SKU: pilotpart801619-8487220969720

Tensioner Belt 3914086 for Cummins Engine 6CT 4BT 6BT is a Belt Tensioner replacement part for Cummins Seals, Filters & Maintenance Parts, categorized under Seals, Filters & Maintenance Parts > Belt Tensioner. Use OEM part number 3914086 and confirm machine model, engine model, and serial details before checkout.

Stock: In stock
Condition: New
Fitment: Cummins Engine Spare Parts
Category: Belt Tensioner

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$37.99USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 12 – Aug 19
10	Aug 10 – Aug 17
50	Aug 8 – Aug 15

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.

Belt Tensioner Description

This Belt Tensioner is indexed for Cummins s: Cummins Engine:6CT, NT855, CM800, QSB6.7, CM850, QSF2.8, 4BT, 6BT, 4BTA, 6BTA Model:1085B EXCAVATOR,1150E CRAWLER LOADER Komatsu Excavators:PC200-6, PC200-7, PC220-6, PC220-7. Compare reference number 3914086 against the label on your existing Cummins component before ordering.

Additional cross references on file: 5333477, 3937553, 3934818. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3914086 5333477 3937553 3934818 NT855 CM800 QSB6.7 CM850 QSF2.84BTAPC200-7 PC220-6

Applications

Cummins s: Cummins Engine:6CT, NT855, CM800, QSB6.7, CM850, QSF2.8, 4BT, 6BT, 4BTA, 6BTA Model:1085B EXCAVATOR,1150E CRAWLER LOADER Komatsu Excavators:PC200-6, PC200-7, PC220-6, PC220-7

Fitment Notes

Brand or application signal: Cummins Engine Spare Parts
Product family: Belt Tensioner
System category: Engine Spare Parts > Belt Drive Systems > Belt Tensioner
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.