How do I confirm pilotpart235500 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 266-6251 For Caterpillar Excavator CAT 318C 319C 320C Engine 3066

For Details Muffler

Muffler 266-6251 for Details 3066 Engine Engine

Q: What part numbers are associated with this Muffler?

266-6251, 3066, 318C, 319C, 320C, GPA00001-UP, BTG00001-UP, KGL00001-UP, EGL00001-UP, MAB00001-UP, DBG00001-UP, EGA00001-UP

OEM / REF: 266-6251SKU: pilotpart235500

Muffler 266-6251 For Caterpillar Excavator CAT 318C 319C 320C Engine 3066 is a Muffler replacement part indexed for Details 320C L · 3066 Engine and Details 320C LN · 3066 Engine, with 3 application records on file. Match OEM part number 266-6251 and confirm fitment for Details Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$348.83USD/EA

~~$75,280.00~~Save 100%

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.

Muffler Description

This Muffler is indexed for Details 320C L · 3066 Engine; Details 320C LN · 3066 Engine; Details 318C · 3066 Engine; Details 318C L &318C LN · 3066 Engine. Compare reference number 266-6251 against the label on your existing Details component before ordering.

Additional cross references on file: 3066, 318C, 319C. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

266-62513066318C319C320CGPA00001-UP BTG00001-UP KGL00001-UP EGL00001-UP MAB00001-UP DBG00001-UP EGA00001-UP

Applications

Details 320C L · 3066 Engine
Details 320C LN · 3066 Engine
Details 318C · 3066 Engine
Details 318C L &318C LN · 3066 Engine
Details 320C &320C L · 3066 Engine
Details 320C, 320C L, 320C LN · 3066 Engine
Details 320C · 3066 Engine
Details 319C LN · 3066 Engine
Details 320C S · 3066 Engine
Details 320C · 3066 Engine

Specifications

Diameter (mm)	290
Height (mm)	625
Inlet Diameter (mm)	70
Outlet Diameter (mm)	90
Part Number (Caterpillar)	266-6251, 2666251, 266 6251
Part Number	Caterpillar: 266-6251, 2666251, 266 6251

Fitment Notes

Brand or application signal: Details 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.