How do I confirm pilotpart101009 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 CASE Belt Tensioner

Belt Tensioner 3914086 for CASE 1085B

OEM / REF: 3914086SKU: pilotpart101009

Tensioner Belt 3914086 for Cummins Engine 6CT 4BT 6BT is a Belt Tensioner replacement part indexed for Case 1085B and Case 1150E, with 3 application records on file. Match OEM part number 3914086 and confirm fitment for CASE Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$118.99USD/EA

~~$16,899.00~~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

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 Case 1085B; Case 1150E; Case 5120; Case 5130. Compare reference number 3914086 against the label on your existing CASE 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 3922900

Applications

Case 1085B
Case 1150E
Case 5120
Case 5130
Case 5140
Case 5220
Case 5230
Case 5240
Case 5250
Case 7110
Case 7120
Case 7130
Case 7140
Case 7150
Case 7210
Case 7220
Case 7230
Case 7240
Case 7250
Case 8910
Case 8920
Case 8930
Case 8940
Case 8950
Case 9110
Case 9130
Case 9210
Case 9230
Case 9240
Case 9250
Case 9260
Case 9310
Case 9330
Case MX100
Case MX110
Case MX120
Case MX135
Case MX150
Case MX170
Case MX180
Case MX200
Case MX220
Case 1620
Case 1640
Case 1660
Case 1666
Case 1680
Case 1688
Case 2144
Case 2166
Case 2188
Case 2344
Case 2366
Case 2388
Komatsu PC200-6
Komatsu PC200-7
Komatsu PC220-6
Komatsu PC220-7
Cummins
Cummins
Cummins
Cummins
Cummins
Cummins
Cummins
Cummins
Cummins
Cummins

Specifications

Part Number	3914086, 5333477, 3937553, 3934818, 3922900

Fitment Notes

Brand or application signal: CASE 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.