How do I confirm pilotpart136366 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

Air Compressor Cylinder Head Assembly 5257939 for Cummins Engine

For Cummins Air Compressor Unit

Air Compressor Unit 5257939 for Cummins Cummins Engine

OEM / REF: 5257939SKU: pilotpart136366

Air Compressor Cylinder Head Assembly 5257939 for Cummins Engine is a Air Compressor Unit replacement part indexed for Part Number and Cummins Engine. Match OEM part number 5257939 and confirm fitment for Cummins Machinery & Equipment before ordering.

Stock: In stock
Condition: New
Fitment: Cummins Machinery & Equipment
Category: Air Compressor Unit

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$600.98USD/EA

~~$31,299.00~~Save 98%

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.

Air Compressor Unit Description

This Air Compressor Unit is indexed for Part Number; Cummins Engine. Compare reference number 5257939 against the label on your existing Cummins component before ordering.

Before checkout, compare OEM part number 5257939, 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

5257939

Applications

Part Number
Cummins Engine

Specifications

Part Number	5257939

Fitment Notes

Brand or application signal: Cummins Machinery & Equipment
Product family: Air Compressor Unit
System category: Machinery & Equipment > Attachments & Air Systems > Air Compressor Unit
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.