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HOUSING AS-CENTER 4N9540 - Caterpillar


4N9540 HOUSING AS-CENTER Caterpillar parts 1673C, 1674, 235, 3306, 3406, 3406B, 3408, 3412, 571G, 572G, 621R, 815B, 955K, 966D, 972G, 973, 977K, 980B, D346, D379, D379A, D379B, D398B, D5, D6C, D7G, D7H
Rating:
49
Alternative (cross code) number:
CA4N9540
4N-9540
4N9540
Caterpillar 4N9540 HOUSING AS-CENTER
Weight: 10 pounds 4 kg.

Buy HOUSING AS-CENTER 4N9540 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR, WHEEL TRACTOR,

Compare Prices: .

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$204.02

14 Aug 2025

Amazon.com
CTP 4N9540 Turbo Housing Assembly for Models 1673C/1674/235/3306/3406/3406B/3408/3412/571G/572G/621R/815B/955K/966D/972G/973/977K/980B/D346/D379
CTP For models 1673C/1674/235/3306/3406/3406B/3408/3412/571G/572G/621R/815B/955K/966D/972G/973/977K/980B/D346/D379 || Better performance and higher durability || Ready to ship || Country of origin: United States
$202.20

05 Jul 2025

Amazon.com
CTP 4N9540 Turbo Housing Assembly for Models 1673C/1674/235/3306/3406/3406B/3408/3412/571G/572G/621R/815B/955K/966D/972G/973/977K/980B/D346/D379
CTP For models 1673C/1674/235/3306/3406/3406B/3408/3412/571G/572G/621R/815B/955K/966D/972G/973/977K/980B/D346/D379 || Better performance and higher durability || Ready to ship || Country of origin: United States
$203.07

09 Apr 2025

Amazon.com
CTP 4N9540 Turbo Housing Assembly for Models 1673C/1674/235/3306/3406/3406B/3408/3412/571G/572G/621R/815B/955K/966D/972G/973/977K/980B/D346/D379
CTP For models 1673C/1674/235/3306/3406/3406B/3408/3412/571G/572G/621R/815B/955K/966D/972G/973/977K/980B/D346/D379 || Better performance and higher durability || Ready to ship || Country of origin: United States
Number on catalog scheme: 11
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Compatible equipment models: 4N9540:

EXCAVATOR  235  
GEN SET ENGINE  3306   3406   3408   D379B   D398B  
INDUSTRIAL ENGINE  3306   3406   3406B   3408   3412   D346   D379  
MARINE ENGINE  D379A  
PIPELAYER  571G   572G  
SOIL COMPACTOR  815B  
TRACK LOADER  955K   973   977K  
TRACK-TYPE TRACTOR  D5   D6C   D7G   D7H  
TRUCK ENGINE  1673C   1674   3406  
WHEEL LOADER  966D   972G   980B  
WHEEL TRACTOR  621R   Caterpillar

Information:

Caterpillar: Confidential Yellow
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 Program must be administered as soon as possible. When reporting the repair, use "PI3881" as the Part Number, "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI3881" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
Completion Date
November 30, 1996Termination Date
May 31, 1997Problem
The 1248474 Transformer Assembly used on medium voltage SR4B Generators may cause a loss of sensing voltage as a result of insulation deterioration between the primary coil leads and the coil face.
Affected Product
Model & Identification Number
3508 (23Z6192, 23Z6295)
3512 (8RM107 24Z6512 , 24Z6518, 24Z6566, 24Z6598, 24Z6599, 24Z6600, 24Z6618, 24Z6622 , 24Z6624, 24Z6641, 24Z6652, 24Z6744, 24Z6745, 24Z6749, 24Z6891 , 24Z6906, 24Z6985, 24Z6988, 24Z6996)
3516 (25Z4584, 25Z4589, 25Z4591, 25Z4604, 25Z4644, 25Z4658, 25Z4735, 25Z4738 , 25Z4742, 25Z4773, 25Z4793, 25Z4794, 25Z4797, 25Z4798, 25Z4802 , 25Z4889, 25Z4918, 25Z4928, 25Z4931, 25Z4967, 25Z4979 7RN198 , 7RN245, 7RN254-260, 7RN288-290 5SJ313-315 , 5SJ320, 5SJ362, 5SJ368, 5SJ369, 5SJ372, 5SJ385, 5SJ386, 5SJ410, 5SJ422-426 , 5SJ428, 5SJ429 4XF590 , 4XF592, 4XF608-611, 4XF613, 4XF614 4EK494 , 4EK671, 4EK672, 4EK698)
GENERATORS (2FN556 8NN501 )
Parts Needed
2 - 1365057 Transformer AssemblyAction Required
Parts Stock
Remove all 1248474 Transformers from Parts Stock.
Affected Product
Replace the 1248474 Isolation Transformer with the 1365057 Isolation Transformer. There are two transformers on each generator and are located inside the terminal box.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
Parts Stock
Submit one claim for all 1248474 Transformers removed from Parts Stock.
Affected Product
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach.(1-Owner Notification)Copy Of Owner Notification For U.S. And Canadian Owners

Caterpillar parts catalog:

Caterpillar parts catalog
3306 Truck Engine 76R02779-UP
3306 Generator Set 85Z00001-03763
3408B Generator Set 78Z01144-04866
3306 Industrial Engine 66D49919-UP
3306 Generator Set 85Z03764-UP
3406C Industrial Engine 6TB09857-UP
815B Soil Compactor 17Z00001-UP (MACHINE) POWERED BY 3306 Engine
3406C Industrial Engine 6TB09857-UP
973 LGP Track-Type Loader 86G03000-UP (MACHINE) POWERED BY 3306 Engine
3306 Engine Rebuild Kit & Related Parts for D7G Tractor 3GF00001-UP (MACHINE)
3306 Engine Rebuild Kit & Related Parts for D7G Series II Tractor 65V00001-UP (MACHINE)
3306 Engine Rebuild Kit & Related Parts for 966E/F/G, 966F Series II, 972G Wheel Loader 1EW00001-UP (MACHINE)


Parts housing Caterpillar catalog:

6Y4767 HOUSING AS
615, 615C, 814B, 815B, 966D, 966F, 966F II, 970F, D250E, D300E, R1600, R1600G, R1600H, R1700 II, R1700G
6K0053 HOUSING
508, 518, 518C, 528, 528B, 530B, 814, 920, 930, 930R, 950, 966C, 966R, 980B, 992, FB518
3V7427 HOUSING ASSEM.
518, 518C, 528, 528B, 530B, 814, 920, 930, 930R, 950, 966C, 966R, 980B, 992, FB518
3T4384 HOUSING AS-CLUTCH
814B, 814F, 815B, 815F, 816F, 966D, 966F, 966F II, 970F, 980C, 980F, 980F II, R1600, R1600G, R1600H, R1700 II, R1700G
9V2411 HOUSING-BEARING
814B, 814F, 814F II, 815B, 815F, 815F II, 816F, 816F II, 950B, 950B/950E, 950F, 950F II, 960F, 966D, 966F, 966F II, 970F, R1600, R1600G, R1600H
9V2410 HOUSING-BEARING
814B, 814F, 814F II, 815B, 815F, 815F II, 816F, 816F II, 950B, 950B/950E, 950F, 950F II, 960F, 966D, 966F, 966F II, 970F, R1600, R1600G, R1600H
1308706 HOUSING-PINION
966G, 966G II, 966H, 966K, 972G, 972G II, 972H, 972K
8P0955 HOUSING
814B, 815B, 966D
8V7885 HOUSING-SUPPORT
814B, 815B, 816B, 966D, 966F, 966G
8V7884 HOUSING-SUPPORT
814B, 815B, 816B, 966D, 966F, 966G, D25D, D350E, D400E, D40D
8N0109 HOUSING AS-FRONT
120G, 130G, 140B, 225, 235, 3304B, 3306, 3306B, 621R, 920, 936F, 955L, 963, 966R, 973, D250B, D25C, D300B, D30C, D350C, D35C, D5H, D6D, G3304, G3306
2P4691 HOUSING AS-FLYWHEEL
572G, D6C, D7F, D7G, D7G2
1510204 HOUSING AS
426C, 430D, 436C
7N8205 HOUSING-PLUG
120G, 120H, 120H ES, 120H NA, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140H, 140H ES, 140H NA, 143H, 14H, 14H NA, 160H, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 206B, 212B, 215B, 225, 227, 245, 307, 3...
7N8204 HOUSING-RECEPTACLE
120G, 120H, 120H ES, 120H NA, 12G, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160H, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 215, 215B, 225, 227, 229, 23...
1905166 HOUSING-FRONT
12H, 3126E, 330C, 330C FM, 330C L, 330C MH, 627G, 637G, 962H, C-9, C7, C9, D6R II, MTC735, TK711, TK721, TK722, TK732
2284740 HOUSING-FLYWHEEL
C-9, C9, C9.3, CX31-C9I, MTC735, TH31-E61
1443534 HOUSING AS
416C, 428C, 438C
1429023 HOUSING-AXLE
236, 236B, 236B3, 246C, 246D, 248, 252B, 252B3, 256C, 262C, 262C2, 262D, 268B, 272C, 272D, 272D XHP
3E7771 HOUSING AS
1090, 1190, 1190T, 120M, 1290T, 1390, 140M, 14H, 14M, 160M, 16H NA, 16M, 2290, 235D, 2390, 2391, 2491, 24H, 24M, 2590, 3126B, 3176, 3176C, 3196, 330, 330B L, 330C, 330C FM, 330C L, 330C MH, 330D, 330D...
9S8996 HOUSING-TURBINE
235, 3306, 3412, 572G, 966D, 972G, D379B, D398B, D6C, D7F, D7G
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