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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings6M-5218: 440.69mm Inner Diameter Seal O Ring
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Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
6M-5218: 440.69mm Inner Diameter Seal O Ring
6M-5218: 440.69mm Inner Diameter Seal O Ring

O-ring

Brand: Cat

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6M-5218: 440.69mm Inner Diameter Seal O Ring
6M-5218: 440.69mm Inner Diameter Seal O Ring
6M-5218: 440.69mm Inner Diameter Seal O Ring
6M-5218: 440.69mm Inner Diameter Seal O Ring
6M-5218: 440.69mm Inner Diameter Seal O Ring

O-ring

Brand: Cat

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Description
Description

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.

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
Specifications
Units of MeasureUSMetric
Cross Section Diameter (mm): 5.33
Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.21
Inside Diameter (mm): 440.69
Inside Diameter (in): 17.35
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
Units of MeasureUSMetric
Cross Section Diameter (mm): 5.33
Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.21
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Compatible Models
Compatible Models
Underground Art Truck
AE40AD45BAD60AD55AD55BAD63AE40 IIAD45AD40
Wheel Tractor
637G637K
Wheel Tractor-Scraper
637637K
Ejector Truck
740D400E II
Off Highway Truck
789G772777E793D777775789D773793F785D773GC789785793
Winch
5656H
Motor Grader
14H NA14H14G
Rotary Cutter
RC20
Track-Type Tractor
D6H IID6H
Articulated Truck
740D400E II735 OEM735
Ripper
6
Off-Highway Truck
D10R
Wheel Scraper
637K637E637G637B637D639D637
Quarry Truck
771D771C772G777E775D775B773E
Truck
785789793F CMD775G793775F772G OEM773G LRC793F OEM775E775D793D793B793C793F789C789D777C777B789B777D772G69D775G OEM793F XQ773E785G772773D773G770773F777775G LRC773G OEM769D769C785C785D773B785B
Tractor
776776D776C776B772B784C784B768C
Bulldozer
6A6S6SU
Mobile Hyd Power Unit
TH43-C18
View More
Underground Art Truck
AE40AD45BAD60AD55AD55BAD63AE40 IIAD45AD40
Warranty Information
Return Policy
Parts diagram for 6M-5218
View Detailed Parts Diagrams
Add Your Equipment
Frequently bought together
6M-52186M-5218
7D-75197D-7519
123-2941123-2941
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Frequently bought together
6M-5218
Contact Dealer
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or use our Contact Form
Contact Dealer
7D-7519
Contact Dealer
Visit us

or use our Contact Form
Contact Dealer
123-2941
Contact Dealer
Visit us

or use our Contact Form
Contact Dealer
9X-7307
Contact Dealer
Visit us

or use our Contact Form
Contact Dealer
2M-9780
Contact Dealer
Visit us

or use our Contact Form
Contact Dealer
5P-4076
Contact Dealer
Visit us

or use our Contact Form
Contact Dealer
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 6M-5218
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 6M-5218

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.

View More
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 6M-5218

Units of Measure

USMetric
Cross Section Diameter (mm): 5.33
Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.21
Inside Diameter (mm): 440.69
Inside Diameter (in): 17.35
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
View More
Compatible Models for part number 6M-5218

UNDERGROUND ART TRUCK

AE40 AD45B AD60 AD55 AD55B AD63 AE40 II AD45 AD40

WHEEL TRACTOR

637G 637K

WHEEL TRACTOR-SCRAPER

637 637K

EJECTOR TRUCK

740 D400E II

OFF HIGHWAY TRUCK

789G 772 777E 793D 777 775 789D 773 793F 785D 773GC 789 785 793

WINCH

56 56H

MOTOR GRADER

14H NA 14H 14G

ROTARY CUTTER

RC20

TRACK-TYPE TRACTOR

D6H II D6H

ARTICULATED TRUCK

740 D400E II 735 OEM 735

RIPPER

6

OFF-HIGHWAY TRUCK

D10R

WHEEL SCRAPER

637K 637E 637G 637B 637D 639D 637

QUARRY TRUCK

771D 771C 772G 777E 775D 775B 773E

TRUCK

785 789 793F CMD 775G 793 775F 772G OEM 773G LRC 793F OEM 775E 775D 793D 793B 793C 793F 789C 789D 777C 777B 789B 777D 772G 69D 775G OEM 793F XQ 773E 785G 772 773D 773G 770 773F 777 775G LRC 773G OEM 769D 769C 785C 785D 773B 785B

TRACTOR

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

BULLDOZER

6A 6S 6SU

MOBILE HYD POWER UNIT

TH43-C18

View More
KeyKey
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

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