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MUFFLER ASSEM. 6N0731 - Caterpillar


6N0731 MUFFLER ASSEM. Caterpillar parts 572G, 977L, D7G
Rating:
16
Alternative (cross code) number:
CA6N0731
6N-0731
6N0731
Caterpillar 6N0731 MUFFLER ASSEM.
Weight: 23 pounds 10 kg.
Information:
BODY DIAMETER/WIDTH  254  mm
BODY LENGTH  309.88  mm
INLET ID  117.48  mm
OUTLET OD  130.18  mm
OVAL HEIGHT  381  mm
OVERALL LENGTH  433.324  mm
PROTECTIVE SHIELD 
WITH EJECTOR 
WITH MOUNTING BRACKET 
WITH OUTER WRAP 

Buy MUFFLER ASSEM. 6N0731 Caterpillar genuine, new aftermarket tractor parts with delivery
PIPELAYER, TRACK-TYPE TRACTOR,

Related part:
6N0731  MUFFLER-EXH-YM  3828018  CL

Compare Prices: .

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$236.47

23 Nov 2025
26.8[12.06] Pounds
US: Zbox Global, LL
6N0731 Muffler fits Caterpillar 571G 572G 977L D7G D7G LGP D7G SA
ZBOX 【FITMENT MODELS】 Fits Caterpillar 571G - 572G - 977L - D7G - D7G LGP - D7G SA || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【PACK SIZE】This product is a pack of 1, making it easy to stock up and ensure you have the necessary parts on hand for maintenance.
$199.99

23 Nov 2025
27.1[12.20] Pounds
US: RAParts Inc.
Muffler Fits Caterpillar Replaces 6N0731
Reliable Aftermarket Parts OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. || Please Note: Some Listings Use Stock Images for Reference and May Differ from the Actual Product. || This Aftermarket Part Is Made to Meet or Exceed Manufacturer (OEM) Specifications. || All OEM part numbers and logos are to be used for identification purposes only.
$199.99

23 Nov 2025
27.1[12.20] Pounds
US: RAParts Inc.
RAParts 6N0731 Muffler Fits Caterpillar Models: 571G 572G 977L D7G D7GLGP D7GSA
Reliable Aftermarket Parts One (1) New Aftermarket Replacement Muffler || Weight: 23.8 lbs Length: 19 in || Width: 17 in Inner Diameter: 4.61 in || Height: 10 in || Replaces Part Number(s): 6N0731
Number on catalog scheme: 5
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Compatible equipment models: 6N0731:

PIPELAYER  572G  
TRACK LOADER  977L  
TRACK-TYPE TRACTOR  D7G   Caterpillar

Information:

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 468-8116 Socket 1 Note: Refer to Special Instruction, REHS8151, NOx Sensors Handling and Installation Procedures for additional information when removing and installing nitrogen oxide sensors.
Remove the heat shielding.
Illustration 1 g06231234
Remove bolts (1) and plate (2).
Illustration 2 g06232399
Remove cable straps (6) and bolt (4).
Disconnect wiring harness (3) and position the harness out of the way.
Use Tooling (A) to remove nitrogen oxide sensor (5).Installation Procedure
Install nitrogen oxide sensor (5) in the reverse order of removal.
Tighten nitrogen oxide sensor (5) to a torque of 50 10 N m (37 7 lb ft).Note: Ensure that the NOx sensor is not covered with insulation. The insulation would trap heat in the sensor body and cable. This heat may cause sensor failure.

Cat SIS web machinery list:

Caterpillar parts catalog
D7G LGP TRACTOR 72W00001-00607 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 92V02127-11897 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 91V00954-00954 (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 16W00256-UP (MACHINE)
572G PIPELAYER 40U00411-00970 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 35N00001-UP (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 40U00001-00410 (MACHINE)
D7G LGP TRACTOR 72W00001-00607 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 92V02127-11897 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 91V00954-00954 (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 16W00256-UP (MACHINE)
572G PIPELAYER 40U00411-00970 (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER / POWER SHIFT / 40U00971-UP (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR / POWER SHIFT / 72W00608-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWER SHIFT / 92V11898-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 91V01917-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR 3GF00001-UP (MACHINE)
572G PIPELAYER / POWERSHIFT / 8PC00361-UP (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 8PC00001-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 65V05546-UP (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR / POWERSHIFT / 44W00548-UP (MACHINE) POWERED BY 3306 ENGINE
571G PIPELAYER 5ZD00001-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 45W00407-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 44W00441-UP (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR 72W00001-00607 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 92V02127-11897 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 91V00954-00954 (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 16W00256-UP (MACHINE)
572G PIPELAYER 40U00411-00970 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 35N00001-UP (MACHINE) POWERED BY 3306 ENGINE
977L TRACK-TYPE LOADER / POWER SHIFT / 64X00001-UP (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 40U00001-00410 (MACHINE)
D7G LGP TRACTOR 72W00001-00607 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 92V02127-11897 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 91V00954-00954 (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 16W00256-UP (MACHINE)
572G PIPELAYER 40U00411-00970 (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER / POWER SHIFT / 40U00971-UP (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR / POWER SHIFT / 72W00608-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWER SHIFT / 92V11898-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 91V01917-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR 3GF00001-UP (MACHINE)
D7G TRACTOR POWERSHIFT 65V07701-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACK-TYPE TRACTOR / DIRECT DRIVE / 64V00001-00994 (MACHINE) POWERED BY 3306 ENGINE
D7G TRACK-TYPE TRACTOR / POWER SHIFT / 65V00001-03400 (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR / POWERSHIFT / 44W00001-UP (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR / DIRECT DRIVE / 45W00001-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACK-TYPE TRACTOR / DIRECT DRIVE / 64V00995-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACK-TYPE TRACTOR / POWER SHIFT / 65V03401-UP (MACHINE) POWERED BY 3306 ENGINE
977L TRACK TYPE LOADER 95X00001-UP (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER / POWERSHIFT / 8PC00361-UP (MACHINE) POWERED BY 3306 ENGINE
572G PIPELAYER 8PC00001-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 65V05546-UP (MACHINE) POWERED BY 3306 ENGINE
D7G LGP TRACTOR / POWERSHIFT / 44W00548-UP (MACHINE) POWERED BY 3306 ENGINE
571G PIPELAYER 5ZD00001-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / DIRECT DRIVE / 45W00407-UP (MACHINE) POWERED BY 3306 ENGINE
D7G TRACTOR / POWERSHIFT / 44W00441-UP (MACHINE) POWERED BY 3306 ENGINE


Parts muffler Caterpillar catalog:

7S6741 MUFFLER GP
3304, 814, 815, 950, 966C, 977K, 977L, D4E, D5B, D6C, D6D, D6E, D6G, D6G2 LGP, D6G2 XL
2P2744 MUFFLER ASSEM.
950, 977K, 977L, D6D
2P6255 MUFFLER ASSEM.
920, 930, 941, D4D, D4E
2Y3197 MUFFLER
930, 930R, D4D, D4E
2P5224 MUFFLER ASSEM.
12F, 613, 955L, D5, D5B
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