How do I confirm pilotpart442455 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

6pcs Piston ring 389-7188 3897188 Fits for Caterpillar CAT Engine C7.1 Excavator 323 320 323D2L 326D2 326D2L 329D2 329D2L 330D2L 330 330GC

For Caterpillar Piston Ring

Piston Ring 389-7188 for Caterpillar

OEM / REF: 389-7188SKU: pilotpart442455

6pcs Piston ring 389-7188 3897188 Fits for Caterpillar CAT Engine C7.1 Excavator 323 320 323D2L 326D2 326D2L 329D2 329D2L 330D2L 330 330GC is a Piston Ring replacement part indexed for Part Number and Fits for Caterpillar C7.1 Engine Fits for Caterpillar Excavator 323 320 323D2L 326D2 326D2L 329D2 329D2L 330D2L 330...

Stock: In stock
Condition: New
Fitment: Caterpillar Engine Spare Parts
Category: Piston Ring

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$197.99USD/EA

~~$29,899.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 23 – Oct 30
10	Oct 21 – Oct 28
50	Oct 19 – Oct 26

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.

Piston Ring Description

This Piston Ring is indexed for Part Number; Fits for Caterpillar C7.1 Engine Fits for Caterpillar Excavator 323 320 323D2L 326D2 326D2L 329D2 329D2L 330D2L 330 330GC Fits for Caterpillar Track-Type Tractor D5R2 D5R2XL D5R2LGP D6N D6NXL D6NVPAT D6NLGP D6KXL D6KLGP D6K2 Fits for Caterpillar Wheel Loader 930K 924K 938K Fits for Caterpillar Excavator 323D3 320D2 320D2L 320D2GC Fits for Caterpillar Track Skidder 527. Compare reference number 389-7188 against the label on your existing Caterpillar component before ordering.

Before checkout, compare OEM part number 389-7188, 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

389-7188

Applications

Part Number
Fits for Caterpillar C7.1 Engine Fits for Caterpillar Excavator 323 320 323D2L 326D2 326D2L 329D2 329D2L 330D2L 330 330GC Fits for Caterpillar Track-Type Tractor D5R2 D5R2XL D5R2LGP D6N D6NXL D6NVPAT D6NLGP D6KXL D6KLGP D6K2 Fits for Caterpillar Wheel Loader 930K 924K 938K Fits for Caterpillar Excavator 323D3 320D2 320D2L 320D2GC Fits for Caterpillar Track Skidder 527

Specifications

Ring	3.0Kx2.5x3.0mm
Package included	6pcs Piston ring set
Part Number	389-7188, 3897188

Fitment Notes

Brand or application signal: Caterpillar Engine Spare Parts
Product family: Piston Ring
System category: Engine Spare Parts > Cylinder Components > Piston Ring
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.