Home

Hardware, Seals, & Consumables

Seals, Gaskets, & O-Rings

O-Rings

4J-0525: 3.53 x 50.39mm 90A NBR O-Ring

O-ring

Brand: Cat

Product Images

4J-0525: 3.53 x 50.39mm 90A NBR O-Ring

O-ring

Brand: Cat

Will It Fit?

Add your equipment to see if this part fits or if there are repair options available.

Frequently bought together

4J-0525

3J-1907

3K-0360

Frequently bought together

4J-0525: 3.53 x 50.39mm 90A NBR O-Ring

3J-1907: 1.98 x 11.89mm 90A NBR O-Ring

3K-0360: 2.21 x 16.36mm 90A NBR O-Ring

4J-0522: 3.53 x 37.69mm 90A NBR O-Ring

4J-0524: 3.53 x 47.22mm 90A NBR O-Ring

3D-2824: 2.95 x 23.47mm 90A NBR O-Ring

Diagram

Description

Specifications

Compatible Models

Parts diagram for 4J-0525

Description for part number 4J-0525

Description:
O-Rings are used in static sealing and some dynamic applications.

Attributes:
Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.

Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.

With over 2500 O-Rings in different sizes and materials, Cat O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.

Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.

Applications:
O-Rings are used in many static and dynamic joints throughout Cat machines and engines.

Warning:This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specifications for part number 4J-0525

Units of Measure

Metric

Compatible Models for part number 4J-0525

GENERATOR

SR4B

TRUCK ENGINE

C7 C9 C-9 C-12 3126E

INTEGRATED TOOLCARRIER

IT62G IT62H IT12 IT28 IT18 IT28B IT18B

WHEEL TRACTOR-SCRAPER

627 623 621 637 627K LRC 632 631 623K LRC 631K 623K 621K 627K 613G 637K 657 651

WHEEL SKIDDER

518C 535C 545C 525C 518

OEM MOB HYD PWR UNIT

336MHPU

FORESTRY PRODUCTS

538 548 558 568 FM528 FM528 LL

EXCAVATOR

345B II 349D L 215B FM538 215C 215D 336F 375-A L FM548 323F 374F L 349E L 225B 225D 324E LN 352F XE VG 345B 345C 345D 336 MHPU 349F L 219D 352F-VG 326F L 336F L XE 350-A L 229D FM558 OTHER 326F 349D FM568 350 L 330GC 336E L 320 GC 349E 349F 352F 340F 345B L 231D 336F LN XE 320E LRR 324E L 336F L 374F 345C L 330 GC 345D L 336F LNXE 235B 323GC 235C 235D 336F LN 329E LN 330F 345B II MH 245D 245B 390F L 323F L 365B L 365B 336E LN 336E LH 349F LXE MH3295 390F 336E LNH 350-A MH3040 340MHPU 340F L UHD 349E L VG 349 GC 320E L 349D2 320F L 330F LN 330D L 352 UHD 340 229 349 225 336 GC 345 340F L LRE 349D2 L 352 350 355 235 320 326 323 329E L 345D L VG 330 219 215 336 333 330F L 329F L 395 375-A 245 374 345C MH 326F LN 345 GC

WHEEL TRACTOR

633E II 651B 651E 631K 615C II 631D 631E 631C 631G 641B 621K OEM 613C II 615 611 627 621 623 637 641 651 657 623B 623G 623H 623E 623F 621B 633C 657E 657B 621E 621F 633D 657G 621G 621H 621S 639D 615C 627B 627G 627H 627E 627F 637G 637D 637E 637K

HEX BASED SPL SOLUTION

330F OEM 352F OEM

HYDRAULIC CONTROL

193 173B 183B

TRACK LOADER

973C 963B 963C 953C

SOIL COMPACTOR

825B 815F II

PETROLEUM ENGINE

C9 C7

WHEEL DOZER

834 824B 844 834B 814B 824C 814F II 824

LANDFILL COMPACTOR

836 816F II 826B

WHEEL LOADER

972H 950G 962H 962G 950H G926 988B 988G 988H 988F G916 966D 966F 966E G936 966H 936E 936F 926E 988F II 988 995 990 992 916 926 936 950 980F II 966F II 990K 972G II 993K 980B 992D 992B 980C 992C 980F 970F 994K 966G II

FORWARDER

584 584HD

INDUSTRIAL TRACTOR

HA771 HA871 TK381 TK371

ARTICULATED TRUCK

D35HP D35C D25C D350E D350C D400E D400

UTILITY COMPACTOR

CB1.8 CB1.7

WHEELED EXCAVATOR

W345C MH MH3040 W345B II

INDUSTRIAL ENGINE

C7.1 3126B C7 C9 C-9

WHEEL SCRAPER

651E 651B 641B 630B 666B 631G 631D 631C 631E 631B 621E 657G 633B 633D 657E 657B 637K 637E 637G 637B 637D 627G 639D 621 627 633 666 637 641 657 651

QUARRY TRUCK

777E 775D 775B 771D 771C

TRACTOR

772B 784C 784B 776 776D 776C 776B 768C

BULLDOZER

824S 834U 834S 814S 9SU 8SU 10SU 7SU 11SU 7S LGP 8S 8U 9C 9U 9S 10C 11U 7A 10S 7S 7U 10U 8A

UNDERGROUND ART TRUCK

AE40 AD45B AD55B AD60 AD55 AD63 AD30 AD45 AD40

SHOVEL LOGGER

345C

POWER MODULE

OEM POWER

LOAD HAUL DUMP

R1700G R3000H R1700 II R2900G R1300 R2900 R1300G R1300G II

OFF HIGHWAY TRUCK

773GC 772

MATERIAL HANDLER

MH3250 MH3260 MH3032 MH3040 MH3050 MH3295

WINCH

57H 57 59 58 59N 59L 58L

MOTOR GRADER

16 120K 140M 140K 140M 2 160M 2 140 14E 120 160K 12F 160M 120K 2

HYDRAULIC SHOVEL

6030

TRACK-TYPE TRACTOR

D6R III D10 D6R II D6R D6T D10N D10R D10T D11N D11R D11T D7G2 D7R D7F D7G D7H D8K D8L D10T2 D8N D9T D9R D9L D9N D9H

ASPHALT PAVER

AP-1000

MARINE ENGINE

C9 3406E

PIPELAYER

PL83 583T

MINING EXCAVATOR

5110B 5130 5230 5130B

FRONT SHOVEL

235C 5080

VIBRATORY COMPACTOR

CB1.8 CB1.7 CS-653 CS-643 CP-643 CP-653 CB-14

MOBILE HYD POWER UNIT

352FMHPU 390F 349D L 330FMHPU 336FMHPU 330 MHPU 349E L HVG 349E 336F 336E 345D 345C 336E HVG 349D2 345C L

GENERATOR SET

3512 C9

FOREST PRODUCTS

OTHER

CHALLENGER

MT765 MT755 MT745 MT735 65C 65D MTC735 MTC745 MTC755 MTC765

RIPPER

7 9 8 9D 8D 11 10

TRUCK

772G OEM 775E 775D 789C 777C 777B 789B 777D 769D 769C 785 789 793 793D 793B 793C 772G 69D 773E 773D 785C 773B 785B 777

WHEEL FELLER BUNCHER

HA770 TK370 TK380 HA870 543 533

Related parts

270-1528: O-Ring Seal Kit (90A Nitrile)

O-Ring Seal Kit: SAE STOR Fittings, SAE ORFS Fittings, SAE Code 61 Flanges, SAE Code 62 Flanges, 32 Sizes, 570 Seals, Nitrile, 90 Dur

610-1951: SAE Code 61/62 Flange Seal Kit (90A Nitrile)

O-Ring Seal Kit: SAE Code 61 & 62 Flanges, 10 Sizes, 150 Seals, Nitrile, 90 Duro

270-1528: O-Ring Seal Kit (90A Nitrile)

610-1951: SAE Code 61/62 Flange Seal Kit (90A Nitrile)

Key

Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

To find the parts that fit.

To find the parts that fit.

4J-0525: 3.53 x 50.39mm 90A NBR O-Ring

Product Images

4J-0525: 3.53 x 50.39mm 90A NBR O-Ring

Will It Fit?

Add your equipment to see if this part fits or if there are repair options available.

Frequently bought together

4J-0525

3J-1907

3K-0360

Frequently bought together

This part:

This part:

This part:

This part:

This part:

This part:

Parts diagram for 4J-0525

View Detailed Parts Diagrams

Description for part number 4J-0525

Specifications for part number 4J-0525

Cross Section Diameter (in):

0.139

Inside Diameter (in):

1.984

Compatible Models for part number 4J-0525

Related parts

Key

Key

Factory Fit

Find Parts

Support

My Account

Cat Social

Find Parts

Support

My Account

Cat Social

Language

CAT Sites

Will It Fit?

Add your equipment to see if this part fits or if there are repair options available.

Parts diagram for 4J-0525

View Detailed Parts Diagrams

Description for part number 4J-0525

Specifications for part number 4J-0525

Cross Section Diameter (in):

0.139

Inside Diameter (in):

1.984

Compatible Models for part number 4J-0525

Find Parts

Support

My Account

Cat Social

Find Parts

Support

My Account

Cat Social

Language

CAT Sites

Frequently bought together

4J-0525

3J-1907

3K-0360

Frequently bought together

This part:

This part:

This part:

This part:

This part:

This part: