AVSPARE.COM
parts catalog

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: .

As an associate, we earn commssions on qualifying purchases through the links below
$361.95

07 Oct 2025

US: obertstore
Replacement Part for 6N0731 Fits Caterpillar 571G 572G 977L D7G D7Glgp D7Gsa R2Aft309505
Generic High-quality spare parts designed for reliable everyday use. || Precision-engineered components that meet strict manufacturing standards. || Versatile design addressing a broad range of repair and maintenance needs. || Durable construction made from quality materials for consistent functionality. || Easy-to-install parts that simplify maintenance and repair processes.
$361.95

07 Oct 2025

US: obertstore
Replacement Part for 6N0731 Fits Caterpillar D7F D7G 977L 571G 572G Loader Dozer R2Aft309586
Generic High-quality spare parts designed for reliable everyday use. || Precision-engineered components that meet strict manufacturing standards. || Versatile design addressing a broad range of repair and maintenance needs. || Durable construction made from quality materials for consistent functionality. || Easy-to-install parts that simplify maintenance and repair processes.
$361.95

07 Oct 2025

US: obertstore
Replacement Part for 6N0731 Fits Caterpillar D7 D7F R2Aft309569
Generic High-quality spare parts designed for reliable everyday use. || Precision-engineered components that meet strict manufacturing standards. || Versatile design addressing a broad range of repair and maintenance needs. || Durable construction made from quality materials for consistent functionality. || Easy-to-install parts that simplify maintenance and repair processes.
Number on catalog scheme: 5
  For full view, you need register

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
Back to top
The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.