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MUFFLER AS 4W1743 - Caterpillar


4W1743 MUFFLER AS Caterpillar parts D4H
Rating:
36
Alternative (cross code) number:
CA4W1743
4W-1743
4W1743
Caterpillar 4W1743 MUFFLER AS
Weight: 24 pounds 11 kg.

Buy MUFFLER AS 4W1743 Caterpillar genuine, new aftermarket tractor parts with delivery
TRACK-TYPE TRACTOR,

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$418.95

09 Nov 2025

US: obertstore
Replacement Part for 1121665 Fits Caterpillar D4H, (4W1743, 4Y3765, 112-1665) R2Aft322123
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.
$320.98
 

26 Oct 2023

US: Fast 404
1121665 Mufflerr Fits CATERPILLARR D4H 4W1743 4Y3765 112-1665 112-1665 1121665 4W1743 4W-1743 4Y-3764
MAXCBD Part Number: 112-1665, 1121665, 4W1743, 4W-1743, 4Y-3764
$207.99
 

27 Apr 2023
33.0[14.85] Pounds
US: Stevens Lake Pa
One New Muffler Assembly Fits CAT, Fits Caterpillar 3204, 54H, D4HTSK II Models Interchangeable With 112-1665, 112-1665-A, 1121665, 1121665-A, 4W-1743, 4W-1743-A, 4W1743, 4W1743-A, 4Y-3764
Stevens Lake Parts This Product Replaces OEM Part Number(s):1121665, 4W1743, || This Is An Aftermarket Replacement Part Made To Meet Or Exceed OEM Specifications. || Please Note That OEM Part Numbers, Models, & Dimensions Are Intended For Your Cross-Reference. Feel || Some Listings Use Stock Images For Customer Reference, Please Allow For Slight Differences.
Number on catalog scheme: 1
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Compatible equipment models: 4W1743:

TRACK-TYPE TRACTOR  D4H   Caterpillar

Information:


REBE9337-01
23Jan2013
(Revised 11Mar2013)
U-28
O-28
Before/After
PRODUCT SUPPORT PROGRAM FOR REPLACING THE TURBO COOLANT LINE ON CERTAIN 3512C LOCOMOTIVE ENGINES
1380 PS43825
This Program must be administered either before or after failure.In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS43825" as the Part Numberand "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code.If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
The information supplied in this service letter may not be valid after the termination date of this program.Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
This Revised Service Letter replaces the 23Jan2013 Service Letter. A change has been made to the Service Claim Allowances.
TERMINATION DATE
31Jan2015
PROBLEM
A turbo coolant line may leak on certain 3512C Locomotive Engines. The 339-7840 Coolant Tube on the right hand side turbo is suspect.
AFFECTED PRODUCT
Model Identification Number
3512C NJT00102-00231
PARTS NEEDED
Qty
Part Number Description
1 6V5064 SEAL-O-RING
2 6V9746 SEAL-O-RING-ORFS
1 1623122 ADAPTER-ELBOW

Caterpillar parts catalog:

Caterpillar parts catalog
D4H & D4H LGP TRACTORS / POWERSHIFT / 8PB00001-03999 (MACHINE) POWERED BY 3204 ENGINE
D4H & D4H LGP TRACTORS / DIRECT DRIVE / 2AC00001-03999 (MACHINE) POWERED BY 3204 ENGINE


Parts muffler Caterpillar catalog:

1121665 MUFFLER AS
D4H, D4HTSK II
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