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6N0731 Muffler – Fits Caterpillar
6N0731 Muffler – Fits Caterpillar – additional image 26N0731 Muffler – Fits Caterpillar – additional image 36N0731 Muffler – Fits Caterpillar – additional image 4

NC-008600 · Mufflers

6N0731 Muffler – Fits Caterpillar

CAD 340.33

In stock

Muffler – reference 6N0731. Catalogue-listed applications: Caterpillar D7, D7F, D7G, D7G LGP (D7GLGP), 977L, 571G, 572G. View photos, specifications, CAD pricing and delivery options from NorthCore.

Standard delivery: 3–7 business days. Other services and estimates are shown at checkout. Minimum online order: CAD 100 in parts, excluding shipping and tax. Add this part to your cart to calculate delivery and review your order.

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Part specifications and references

NorthCore code
NC-008600
Reference numbers
6N0731, 9S9996, MUK40-0080
Listed package quantity
1
Product information and configuration
Quantity indicated in catalogue: 1

Replacement part: New Muffler Fits Caterpillar 977L D7G D7GLGP D7GSA. 

Configuration: Muffler Fits Caterpillar (Fits CAT) Crawler Dozers, Loaders, and Pipelayers
This aftermarket replacement muffler (part number 6N0731) is a direct-fit exhaust muffler Fits Caterpillar (Fits CAT) D7G series crawler tractors, 977L track loaders, and 571G/572G pipelayers powered by the 3306 engine. It replaces OEM part number 9S9996 and is sold individually as a single unit.
Compatible Models
Fits Caterpillar Crawler Dozers: D7, D7F, D7G, D7G LGP (D7GLGP), D7G SA (D7GSA) -- Powershift and Direct Drive variants with 3306 engine
Fits Caterpillar Crawler Loaders: 977L
Fits Caterpillar Pipelayers: 571G, 572G
Note: Serial number prefixes confirmed to use this muffler include 94N, 45W, 72W, 65W, and 44W. Consult your parts book to confirm fitment for your specific serial number.
Replaces Part Number(s):
6N0731, 9S9996, MUK40-0080
New aftermarket replacement part - not remanufactured, not used.

Reference numbers: 6N0731, 9S9996, MUK40-0080

Catalogue-listed applications

Use these as reference information. Check the part numbers, specifications and any application restrictions against your equipment.

  • Caterpillar D7
  • Caterpillar D7F
  • Caterpillar D7G
  • Caterpillar D7G LGP (D7GLGP)
  • Caterpillar 977L
  • Caterpillar 571G
  • Caterpillar 572G
Application notes
  • One New Aftermarket Replacement Muffler Fits Caterpillar (Fits CAT) Crawler Dozers, Loaders, and Pipelayers
  • This aftermarket replacement muffler (part number 6N0731) is a direct-fit exhaust muffler Fits Caterpillar (Fits CAT) D7G series crawler tractors, 977L track loaders, and 571G/572G pipelayers powered by the 3306 engine. It replaces OEM part number 9S9996 and is sold individually as a single unit.
  • Fits Caterpillar Crawler Dozers: D7, D7F, D7G, D7G LGP (D7GLGP), D7G SA (D7GSA) -- Powershift and Direct Drive variants with 3306 engine
  • Note: Serial number prefixes confirmed to use this muffler include 94N, 45W, 72W, 65W, and 44W. Consult your parts book to confirm fitment for your specific serial number.
  • New aftermarket replacement part - not remanufactured, not used.

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