How do I confirm pilotpart236627-01 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

Muffler 324-4172 294-1762 For Caterpillar Excavator CAT 320D 320DL 323D 323D L 323D LN Engine C6.4 3066

For Caterpillar Muffler

Muffler 324-4172 for Caterpillar

Q: What part numbers are associated with this Muffler?

324-4172, 294-1762, C6.4, 3066CAT, 320D, 321D, 323D

OEM / REF: 324-4172SKU: pilotpart236627-01

Muffler 324-4172 294-1762 For Caterpillar Excavator CAT 320D 320DL 323D 323D L 323D LN Engine C6.4 3066 is a Muffler replacement part indexed for Part Number and CAT Engines:C6, C6.4, 3066CAT Excavators:320D, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D, 323D L, 323D LN, 323D S, 323D SA, with 3 application rec...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$534.23USD/EA

~~$75,280.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 22 – Aug 29
10	Aug 20 – Aug 27
50	Aug 18 – Aug 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.

Muffler Description

This Muffler is indexed for Part Number; CAT Engines:C6, C6.4, 3066CAT Excavators:320D, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D, 323D L, 323D LN, 323D S, 323D SA; Caterpillar Caterpillar Excavator CAT 320D E320D. Compare reference number 324-4172 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 294-1762, C6.4, 3066CAT. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

324-4172 294-1762C6.43066CAT320D321D323D

Applications

Part Number
CAT Engines:C6, C6.4, 3066CAT Excavators:320D, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D, 323D L, 323D LN, 323D S, 323D SA
Caterpillar Caterpillar Excavator CAT 320D E320D

Specifications

Part Number	324-4172, 294-1762, 3244172, 2941762

Fitment Notes

Brand or application signal: Caterpillar Engine Spare Parts
Product family: Muffler
System category: Engine Spare Parts > Emission & Exhaust System > Muffler
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.