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SEAL-O-RING 4J0523 - Caterpillar


4J0523 SEAL-O-RING Caterpillar parts 120H, 12H, 135H, 140H, 143H, 153, 16, 160H, 163, 163H, 163H NA, 173B, 183B, 193, 216B, 216B3, 225, 225D, 226B, 226B3, 227, 229, 229D, 231D, 235, 235B, 235C, 245, 245B, 247B, 247B3, 303.5, 305.5, 306, ...


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Alternative (cross code) number:
CA4J0523
4J-0523
4J0523
Caterpillar 4J0523 SEAL-O-RING
Weight: 0.01 pounds 0 kg.
Information:
CROSS SECTION DIAMETER  3.53  mm
DASH SIZE  224 
ID  44.04  mm
MATERIAL  Nitrile (NBR) Rubber 90 Duro 
OD  0  mm

Buy SEAL-O-RING 4J0523 Caterpillar genuine, new aftermarket tractor parts with delivery
ARTICULATED TRUCK, WHEELED EXCAVATOR,

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As an associate, we earn commssions on qualifying purchases through the links below
580 Pcs Seal O-Ring Kit 4C-4782 4C4782 270-1528 4J-0523 for CAT Caterpillar SAE STOR ORFS 61 62 Nitrile 90
$87.99

03 Sep 2025

US: LANDTOP
580 Pcs Seal O-Ring Kit 4C-4782 4C4782 270-1528 4J-0523 for CAT Caterpillar SAE STOR ORFS 61 62 Nitrile 90
LANDTOP Part Number: 4C-4782 4J-0523 270-1528 4C4782 4J0523 2701528 || Compatible for CAT Caterpillar SAE STOR ORFS 61 62 || The kit contains 580 O-rings that have been carefully selected to meet the exact specifications of your equipment. With this kit, you can have peace of mind knowing that you have the right O-ring for any sealing application. || Made from premium materials, these O-rings are built to withstand the toughest conditions. Their superior durability and wear resistance ensure long-lasting performance, reducing the need for frequent replacement. With Sealed O-Ring Kits, you can easily replace worn or damaged O-rings and restore efficiency and reliability to your CAT excavator. Improve equipment performance and prevent leaks with this essential kit. || There's no need to compromise on quality and performance for your CAT excavator. Choose a Sealing O-Ring Kit for a reliable choice of the best sealing solution. Buy today and experience how it can significantly improve the performance and life of your equipment.
580 Pcs Seal O-Ring Kit 4C-4782 4C4782 270-1528 4J-0523 Compatible for CAT Caterpillar SAE STOR ORFS 61 62 Nitrile 90
$98.00

30 Jul 2025

CN: gbjhgyuo
580 Pcs Seal O-Ring Kit 4C-4782 4C4782 270-1528 4J-0523 Compatible for CAT Caterpillar SAE STOR ORFS 61 62 Nitrile 90
Ranntwdsu Part Number:270-1528 || Application:for CAT Caterpillar SAE STOR ORFS 61 62 Nitrile 90
JZGRDN 580PCS Seal O-Ring Kit 4C-4782 4C4782 270-1528 4J-0523 Compatible with CAT SAE STOR ORFS 61 62 Nitrile 90
$89.00

28 Jun 2025

CN: JZGRDN
JZGRDN 580PCS Seal O-Ring Kit 4C-4782 4C4782 270-1528 4J-0523 Compatible with CAT SAE STOR ORFS 61 62 Nitrile 90
JZGRDN Part Name: Seal O-Ring Kit || Part Number: 270-1528 2701528 4C-4782 4J-0523 4C4782 4J0523 || Compatible with CAT SAE STOR ORFS 61 62 Nitrile 90 || Condition: New || Package Includes: Seal O-Ring Kit*1
Show more prices Caterpillar parts
This part in 3 request: Show. This information for suppliers only!
#1047176 4j-0523
2023-01-25
#548177 4J0523
2020-10-26
#175461 4J0523
2018-05-31
Number on catalog scheme: 8
Caterpillar 4J0523 Parts scheme SEAL-O-RING
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Compatible equipment models: 4J0523:

ARTICULATED TRUCK  725   725C   730   735   735B   740   740B   D250B   D250E II   D25C   D25D   D300B   D300E II   D30C   D350C   D350E   D350E II   D35C   D35HP   D400   D400E   D400E II   D44B   D550B  
ASPHALT PAVER  AP-1000   AP-1050   AP-1200   AP-800   AP-800C   AP-800D   AP-900B   BG-225B  
BULLDOZER  7A   824S   8A   8S   9A   9S  
CHALLENGER  35   45   55  
COMPACT WHEEL LOADER  910  
EJECTOR TRUCK  740   740B   D400E II  
EXCAVATOR  225   225D   229   229D   231D   235   235B   235C   245   245B   311   311D LRR   311F LRR   312   312D   312D L   312D2   312D2 GC   312D2 L   312E   312E L   313D   313D2   313D2 LGP   315   315C   315D L   316E L   317   318D L   318D2 L   318E L   319D   319D L   319D LN   320   320 L   320B FM LL   320D L   320D LN   320E   320N   322   322 FM L   322 LN   323D L   323D LN   323D SA   324D   324D FM   324D FM LL   324D L   324D LN   325   325 L   325 LN   325D   325D FM   325D FM LL   325D L   325D MH   326D L   328D LCR   329D   329D L   329D LN   330 FM L   330 L   330D L   336E LN   345B   345B II   345B II MH   345B L   345C   345C L   345C MH   345D   345D L   345D L VG   349D   349D L   349E   365B   365B II   365B L   365C   365C L   365C L MH   374D L   374F L   385B   385C   385C L   385C L MH   390D   390D L   390F L   M325D L MH   M325D MH  
GAS ENGINE  G3408   G3412   G3606   G3606B   G3608   G3612   G3616  
GEN SET ENGINE  3408   3412   3412C  
GENERATOR SET  3408C   3412C  
HYDRAULIC CONTROL  153   163   173B   183B   193  
INDUSTRIAL ENGINE  3408   3408B   3408C   3412   3412C  
INDUSTRIAL TRACTOR  HA771   HA871   TK371   TK381  
INTEGRATED TOOLCARRIER  IT12B   IT14B   IT18F   IT24F   IT28G   IT62G II  
LANDFILL COMPACTOR  816F   816F II   826C   826G   826G II   826H   836   836G   836H  
LOAD HAUL DUMP  R1300   R1300G   R1300G II   R1600   R1600G   R1600H   R1700 II   R1700G   R2900   R2900G   R3000H  
LOGGER  227  
MARINE ENGINE  3408   3408C   3412   3412C  
MINI HYD EXCAVATOR  303.5   305.5   306   307C   308C  
MINING EXCAVATOR  5110B   5130  
MOBILE HYD POWER UNIT  323D LN   324D LN   325D   329D L   345C L   349D L   365C L   385C   385C L  
MOTOR GRADER  120H   12H   135H   140H   143H   16   160H   163H   163H NA  
MULTI TERRAIN LOADER  247B   247B3  
PIPELAYER  578   583R   589  
QUARRY TRUCK  771C   771D   775B  
RIPPER  8D  
SHOVEL LOGGER  345C  
SKID STEER LOADER  216B   216B3   226B   226B3  
SOIL COMPACTOR  815   815B   815F   815F II   825G   825G II   825H  
TRACK LOADER  943   953   953C   955K   955L   963   963B   963C   973   973C   977K   977L   983   983B  
TRACK-TYPE TRACTOR  D10   D10N   D10R   D10T   D11N   D11R   D11T   D6R   D6R II   D7F   D7G   D7G2   D8K   D8L   D9G   D9H   D9L   D9N  
TRACTOR  768B   772   772B   776   776C   776D   784B   784C  
TRUCK  769   769C   769D   773   773B   773D   775D   777   777B   777D   785   785B   785C   785D   789B   789C   789D   793C   793D   793F   793F AC   793F CMD   793F OEM   793F XQ   795F AC   795F XQ   797F  
UNDERGROUND ART TRUCK  AD30   AD40   AD45   AD45B   AD55   AD55B   AD60   AE40  
VIBRATORY COMPACTOR  CP-433B  
WHEEL DOZER  814   814B   814F   814F II   824C   824G   824G II   824H   834B   834G   834H   844   844H   844K   854G   854K  
WHEEL FELLER BUNCHER  533   543   HA770   HA870   TK370   TK380  
WHEEL LOADER  918F   924F   924G   924GZ   924H   924HZ   928G   928H   928HZ   930G   936   936F   950   950B   950B/950E   950F   950F II   950G   950G II   960F   962G   962G II   966C   966D   966F   966F II   966G   966G II   966R   970F   972G   972G II   980   980B   980C   980F   980F II   980G   980G II   980H   988   988B   988F   988F II   988G   988H   988K   990K   992   992C   992D   992G   992K   993K   994   994D   994F   994H   G936  
WHEEL SCRAPER  615C   621   621E   630B   631B   631D   631E   631G   637B   637D   637E   637G   651   651B   651E   657   657E   657G   666  
WHEEL SKIDDER  525   525B  
WHEEL TRACTOR  611   613C   613C II   615   621   621B   621E   621F   623B   623E   627B   627E   631C   631D   631E   631G   633C   633D   633E II   637D   637E   637G   641   641B   650B   651   651E   657   657B   657E   657G   666  
WHEEL TRACTOR-SCRAPER  613G  
WHEELED EXCAVATOR  W345B II   W345C MH   Caterpillar

Information:

1.1 Liter Family Of EnginesUse the specifications in the Technical Information System instead of those in Special Instruction, SEHS8918-01, "Governor Performance Data". The information in the Technical Information System is more current than the information in the special instruction. Use the procedure that follows to get governor specifications through the Technical Information System.
1. From the "Caterpillar Network" access "AIMS."2. At the "ACRS/IMS" menu, select "GKN402."3. On the second selection menu, select "03 TMI - Performance Parameter."4. On the "03 TMI - Performance Parameter" screen, enter "TM9999" in the "Data Reference Number."5. On the "TM9999 Cross Reference Screen" find the "TM" number corresponding to your governor group part number.6. Return to the previous screen using "PF5."7. Enter the "TM" number for your governor and governor change level. (You must add the letters "TM" in front of the four digit numbers the system provides.)8. The governor data is on two screens that follow.

Cat SIS web machinery list:

Caterpillar parts catalog
390F L Excavator HNG00001-UP (MACHINE) POWERED BY C18 Engine
3412B Marine Engine 60M00001-05160
G3408 Engine 6NB00001-UP
3408B Generator Set 78Z01144-04866
3408B Marine Engine 99U04604-07598
G3412 Engine 7DB00001-UP
3408B Industrial Engine 67U11092-UP
3412 Generator Set Engine 2WJ00001-UP
3412 Generator Set 81Z05000-14500
3408C Industrial Engine 9ER00001-UP
3412C Industrial Engine 8AR00001-UP
3408C Marine Auxiliary & Generator Set Engine 1TS00001-UP
3412C Marine Auxiliary & Generator Set Engine 9BR00001-UP
3412C Generator Set 81Z14501-UP
3412C Industrial Engine 38S16484-UP
3412 Generator Set 4BZ00001-UP
3408C Generator Set 78Z04867-UP
3408C Marine Engine 99U07599-UP
3412C Generator Set BAX00001-UP
3412C Generator Set BAK00001-UP
3412C Generator Set 9EP00001-UP
3412E Generator Set BCW00001-UP
3412C Marine Engine 60M05161-UP
3412C Generator Set PTL00001-UP
G3606 GENERATOR AND INDUSTRIAL 3XF00001-UP
G3612 GENERATOR AND INDUSTRIAL 1YG00001-UP
G3606 INDUSTRIAL 4ZS00001-UP
G3608 INDUSTRIAL AND GENERATOR BEN00001-UP
G3612 GENERATOR AND INDUSTRIAL BKE00001-UP
G3616 GENERATOR AND INDUSTRIAL BLB00001-UP
3408C Marine Auxiliary Generator Set TAM00001-UP
3412C Marine Auxiliary Generator Set RLR00001-UP
3412C Generator Set DJN00001-UP
3412C Generator Set TFT00001-UP
3412C Generator Set RTY00001-UP
345D Mobile Hydraulic Power Units L5R00001-UP (MACHINE) POWERED BY C13 Engine
AP-1050 Asphalt Paver 1JG00001-UP (MACHINE) POWERED BY 3116 Engine
AP-1000 Asphalt Paver 1HD00001-UP (MACHINE) POWERED BY 3116 Engine
3054 Engine 6YK00001-UP (MACHINE)
CATERPILLAR AP-800C BARBER-GREENE BG-230 Asphalt Pavers 1PM00001-UP (MACHINE) POWERED BY 3054 Engine
Caterpillar AP-900B Barber Greene BG-240C Asphalt Pavers AGJ00001-UP (MACHINE) POWERED BY 3116 Engine
AP-800D BG-230D Asphalt Paver A5P00001-UP (MACHINE) POWERED BY 3054C Engine
R2900G Load Haul Dump NLK00001-UP (MACHINE) POWERED BY C15 Engine
725C2 Articulated Truck 2T300001-UP (MACHINE) POWERED BY C9.3 Engine
777E Off-Highway Truck KDP00001-UP (MACHINE) POWERED BY C32 Engine
R3000H Load Haul Dump RCY00001-UP (MACHINE) POWERED BY C15 Engine
MH3295 Material Handler PA900001-UP (MACHINE) POWERED BY C18 Engine
777E Off-Highway Truck KDZ00001-UP (MACHINE) POWERED BY C32 Engine
216B3 Skid Steer Loader SL300001-UP (MACHINE) POWERED BY C2.2 Engine
226B3 Skid Steer Loader F3D00001-UP (MACHINE) POWERED BY C2.2 Engine
994K Wheel Loader SMX00001-UP (MACHINE) POWERED BY 3516 Engine
793B Freeport Upgrade Custom Parts Manual Off-Highway Truck 4AR00001-UP (MACHINE) POWERED BY 3516B Engine
776 TRACTOR 14H00001-00205 (MACHINE) POWERED BY D348 ENGINE
773B TRUCK 63W00001-01220 (MACHINE) POWERED BY 3412 ENGINE
772B TRACTOR 64W00001-00167 (MACHINE) POWERED BY 3412 ENGINE
815B Soil Compactor 17Z00001-UP (MACHINE) POWERED BY 3306 Engine
3408B Industrial Engine 67U11092-UP
589 Track-Type Pipelayer Power Shift 31Z00001-UP (MACHINE) POWERED BY 3408 Engine
826C Landfill Compactor 87X00587-UP (MACHINE)
578 Pipelayer 8HB00001-UP (MACHINE) POWERED BY 3406 Engine
777C Truck 776C Tractor 2TK00001-UP (MACHINE) POWERED BY 3508 Engine
IT12F Integrated Toolcarrier 1KF00820-UP (MACHINE) POWERED BY 3114 Engine
784B Tractor 5RK00001-UP (MACHINE) POWERED BY 3512 Engine
785B Off-Highway Truck 6HK00001-UP (MACHINE) POWERED BY 3512 Engine
789B Off-HighwayTruck 7EK00001-UP (MACHINE) POWERED BY 3516 Engine
143H Motor Grader 1AL00001-UP (MACHINE) POWERED BY 3306 Engine
163H Motor Grader 5AK00001-UP (MACHINE) POWERED BY 3306 Engine
775B Truck 7XJ00200-UP (MACHINE) POWERED BY 3412 Engine
773B Off-Highway Truck 63W04200-UP (MACHINE) POWERED BY 3412 Engine
769C Truck 01X06600-UP (MACHINE) POWERED BY 3408 Engine
771C Truck 3BJ00200-UP (MACHINE) POWERED BY 3408 Engine
IT24F Integrated Toolcarrier 6KN00001-UP (MACHINE) POWERED BY 3114 Engine
IT24F Integrated Toolcarrier 4NN00001-UP (MACHINE) POWERED BY 3114 Engine
IT28G Integrated Toolcarrier 8CR00001-UP (MACHINE) POWERED BY 3116 Engine
815F Soil Compactor 1GN00001-UP (MACHINE) POWERED BY 3306 Engine
816F COMPACTOR 5FN00001-UP (MACHINE)
825G Soil Compactor 6RN00001-UP (MACHINE) POWERED BY 3406 Engine
826G Landfill Compactor 7LN00001-UP (MACHINE) POWERED BY 3406 Engine
D400E Articulated Truck 2YR00001-UP (MACHINE) POWERED BY 3406 Engine
769D Off-Highway Truck 5TR00001-00504 (MACHINE) POWERED BY 3408E Engine
771D Truck 6JR00001-00134 (MACHINE) POWERED BY 3408E Engine
773D Off-Highway Truck 7ER00001-00380 (MACHINE) POWERED BY 3412E Engine
775D Truck 6KR00001-00123 (MACHINE) POWERED BY 3412E Engine
776D Tractor 5ER00001-UP (MACHINE) POWERED BY 3508B Engine
777D Truck 3PR00001-UP (MACHINE) POWERED BY 3508 Engine
793C Off-HighwayTruck 4AR00001-UP (MACHINE) POWERED BY 3516 Engine
D350E Articulated Truck 9LR00001-UP (MACHINE) POWERED BY 3406 Engine
D250E Series II Articulated Truck 4PS00001-UP (MACHINE) POWERED BY 3306 Engine
D300E Series II Articulated Truck 5KS00001-00617 (MACHINE) POWERED BY 3306 Engine
836 Landfill Compactor 7FR00264-UP (MACHINE) POWERED BY 3408E Engine
777D HAA Off-Highway Truck 2YW00001-UP (MACHINE) POWERED BY 3512B Engine
583R Track-Type Pipelayer 2XS00001-UP (MACHINE) POWERED BY 3406C Engine
3412C Industrial Engine 38S16484-UP
769D Truck 5TR00505-UP (MACHINE) POWERED BY 3408E Engine
771D Truck 6JR00135-UP (MACHINE) POWERED BY 3408E Engine
773D Off-Highway Truck 7ER00381-UP (MACHINE) POWERED BY 3412E Engine
775D Quarry Truck 6KR00124-UP (MACHINE) POWERED BY 3412E Engine
D350E Series II Articulated Truck 2XW00001-UP (MACHINE) POWERED BY 3406E Engine
D400E Series II Articulated Truck 8PS00001-UP (MACHINE) POWERED BY 3406E Engine
785C Off-HighwayTruck 1HW00001-UP (MACHINE) POWERED BY 3512B Engine
785C HAA Off-Highway Truck 5AZ00001-UP (MACHINE) POWERED BY 3516B Engine
784C Tractor 2PZ00001-UP (MACHINE) POWERED BY 3512 Engine
789C Off-Highway Truck 2BW00001-UP (MACHINE) POWERED BY 3516 Engine
793C Off-Highway Truck 4GZ00001-UP (MACHINE) POWERED BY 3516B Engine
836G Landfill Compactor 7MZ00001-UP (MACHINE) POWERED BY 3456 Engine
Challenger 55 Agricultural Tractor 60 in (1524 mm) Base Gauge 6NN00001-UP (MACHINE) POWERED BY 3126 Engine
Challenger 35 & Challenger 45 Agricultural Tractors 60 in (1524 mm) Base Gauge 8RD00001-UP (MACHINE) POWERED BY 3116 Engine
Challenger 35 & Challenger 45 Agricultural Tractors 80 in (2032 mm) Base Gauge 3BK00001-UP (MACHINE) POWERED BY 3116 Engine
Challenger 35, Challenger 45 & Challenger 55 Agricultural Tractors 60 in (1524 mm) Track Gauge & 80 in (2032 mm) Track Gauge 3HS00001-UP (MACHINE) POWERED BY 3116 & 3126 Engines
IT28G Integrated Toolcarrier 9AR00001-01175 (MACHINE) POWERED BY 3116 Engine
Challenger 55 Agricultural Tractor 80 in (2032 mm) Base Gauge AEN00001-UP (MACHINE) POWERED BY 3126 Engine
776D Tractor AFS00001-UP (MACHINE) POWERED BY 3508B Engine
777D Off-Highway Truck AGC00001-UP (MACHINE) POWERED BY 3508B Engine
777D Truck AGY00001-UP (MACHINE) POWERED BY 3512B Engine
785C Off-Highway Truck APX00001-UP (MACHINE) POWERED BY 3512B Engine
793C Off-Highway Truck ATY00001-UP (MACHINE) POWERED BY 3516 Engine


Parts seal Caterpillar catalog:

1132073 SEAL-O-RING
345B II, 345B L, 350, 365B, 365B II, 365B L
0951694 SEAL-O-RING
330, 330 FM L, 330 L, 330B, 330B L, E120B, W330B
1307114 SEAL-O-RING
330B, 330B L, 345B, 345B L, W330B
1659292 SEAL-LIP TYPE
365B, 365B L
2590734 SEAL-U-CUP
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
2667957 SEAL-BUFFER
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
2667960 SEAL-O-RING
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
2590736 SEAL-U-CUP
345B II, 345C, 345D, 345D L, 349D, 349D L
2667958 SEAL-BUFFER
345B II, 345C, 345D, 345D L, 349D, 349D L
3678472 SEAL-O-RING
365C, 374D L, 374F L, 385B, 385C, 385C L, 390D, 390D L, 390F L
2667969 SEAL-O-RING
325C, 325D L, 329D, 329D L
3678473 SEAL-O-RING
390D, 390D L, 390F L
1783914 SEAL
35, 45, 55
1694166 SEAL GP-CRANKSHAFT
140H, 143H, 14H, 14M, 160H, 163H, 16M, 3176C, 3196, 345B, 345B II, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 480, 621H, 621K, 623H, 623K, 623K ...
7N2046 SEAL-O-RING
3406B, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130, 5130B, 5230, 5230B, 65E, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793...
3526061 SEAL-LINER
3406B, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130B, 5230, 5230B, 65E, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793...
1513552 SEAL-O-RING
65E, 75E, 85E, 95E
1969384 SEAL-O-RING
65E, 75E, 85E, 95E
7J6932 SEAL-LIP TYPE
35, 45, 55, 613
1656880 SEAL-U-CUP
35, 45, 55
6V8002 SEAL-O-RING
330C, 330C FM, 330C L, 330C MH, 3412E, 35, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 45, 5110B, 55, 583T, 587T, 621F, 621G, 623E, 627F, 627G, 631E, 631G, 633E II, 637E, 637G, 793F, 7...
1012854 SEAL
349E, 349E L, 349E L VG, 349F L, 35, 375, 375 L, 45, 55
1686973 SEAL
35, 45, 55
0776722 SEAL
30/30, 35, 45, 55, CB-614, CS-323, D400, D40D, DEUCE
4j0523
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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.