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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings150-4651: 1.78 x 3.68mm 78A HNBR O-Ring
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Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings150-4651: 1.78 x 3.68mm 78A HNBR O-Ring
150-4651: 1.78 x 3.68mm 78A HNBR O-Ring

O-ring

Brand: Cat

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150-4651: 1.78 x 3.68mm 78A HNBR O-Ring
150-4651: 1.78 x 3.68mm 78A HNBR O-Ring
150-4651: 1.78 x 3.68mm 78A HNBR O-Ring
150-4651: 1.78 x 3.68mm 78A HNBR O-Ring
150-4651: 1.78 x 3.68mm 78A HNBR 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): 1.78
Material: HNBR (78),HNBR - Hydrogenated Nitrile,HNBR,Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.07
Inside Diameter (mm): 3.68
Inside Diameter (in): 0.145
Polymer: HNBR (Hydrogenated nitrile)
Material Hardness: 78A
Compatible With: Abrasion resistant; Diesel fuels; Diester lubricants; Ozone; Petroleum oils, greases; Refrigerant HFC - 134a (Non-Freon); Silicone fluids; Steam; Water base engine coolants
Dash Size: 007
Units of MeasureUSMetric
Cross Section Diameter (mm): 1.78
Material: HNBR (78),HNBR - Hydrogenated Nitrile,HNBR,Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.07
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Compatible Models
Compatible Models
Wheel Tractor
623G657E657G621G627G631G637G
Integrated Toolcarrier
IT62G IIIT62GIT62HIT38G II
Reclaimer Mixer
RM-250CRM-350BRM-350
Wheel Dozer
824G II
Cold Planer
PM-465PM-565PM-565B
Wheel Loader
962M Z962972G966972H972K972M972972L950M Z966 GC972 XE966 XE966XE966K XE950G II950G962H962G950H950K962L962K950M950L962M972G II972M XE938G II966M XE962G II972XE966H966G966L966K966M966G II950
Soil Stabilizer
SS-250BSS-250
Track-Type Tractor
DEUCE30/30
Road Reclaimer
RM-350BRR-250RR-250B
Asphalt Paver
BG-2455CAP-1055BBG-240CAP-900BAP-800CBG-230
Grapple-Log Loading
GH52
Stabilizer Mixer
SM-350
Pneumatic Compactor
PS-200BPS-360BPF-300BPS-150BPS-300BPF-290B
Excavator
322B L325B L330B L322C FM
Vibratory Compactor
CS-431CCP-533DCP-533CCS-583CS-323CCB-534CCB-534BCS-663ECS-433CCB-535BCB-224CCS-531DCS-563CS-583CCS-583DCS-531CCP-533CB-334DCS-533CP-663ECS-531CP-433CCP-563CB-214CCB-335DCB-634CCP-323CCS-573CCS-573DCS-533CCS-533DCS-683ECB-434BCP-563DCS-563CCS-563DCP-563C
View More
Wheel Tractor
623G657E657G621G627G631G637G
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Parts diagram for 150-4651
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Frequently bought together
150-4651150-4651
7M-84857M-8485
3K-03603K-0360
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Frequently bought together
150-4651
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7M-8485
Contact Dealer
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3K-0360
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Contact Dealer
2D-9454
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Contact Dealer
8T-0336
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3J-7354
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Contact Dealer
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 150-4651
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 150-4651

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 150-4651

Units of Measure

USMetric
Cross Section Diameter (mm): 1.78
Material: HNBR (78),HNBR - Hydrogenated Nitrile,HNBR,Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.07
Inside Diameter (mm): 3.68
Inside Diameter (in): 0.145
Polymer: HNBR (Hydrogenated nitrile)
Material Hardness: 78A
Compatible With: Abrasion resistant; Diesel fuels; Diester lubricants; Ozone; Petroleum oils, greases; Refrigerant HFC - 134a (Non-Freon); Silicone fluids; Steam; Water base engine coolants
Dash Size: 007
View More
Compatible Models for part number 150-4651

WHEEL TRACTOR

623G 657E 657G 621G 627G 631G 637G

INTEGRATED TOOLCARRIER

IT62G II IT62G IT62H IT38G II

RECLAIMER MIXER

RM-250C RM-350B RM-350

WHEEL DOZER

824G II

COLD PLANER

PM-465 PM-565 PM-565B

WHEEL LOADER

962M Z 962 972G 966 972H 972K 972M 972 972L 950M Z 966 GC 972 XE 966 XE 966XE 966K XE 950G II 950G 962H 962G 950H 950K 962L 962K 950M 950L 962M 972G II 972M XE 938G II 966M XE 962G II 972XE 966H 966G 966L 966K 966M 966G II 950

SOIL STABILIZER

SS-250B SS-250

TRACK-TYPE TRACTOR

DEUCE 30/30

ROAD RECLAIMER

RM-350B RR-250 RR-250B

ASPHALT PAVER

BG-2455C AP-1055B BG-240C AP-900B AP-800C BG-230

GRAPPLE-LOG LOADING

GH52

STABILIZER MIXER

SM-350

PNEUMATIC COMPACTOR

PS-200B PS-360B PF-300B PS-150B PS-300B PF-290B

EXCAVATOR

322B L 325B L 330B L 322C FM

VIBRATORY COMPACTOR

CS-431C CP-533D CP-533C CS-583 CS-323C CB-534C CB-534B CS-663E CS-433C CB-535B CB-224C CS-531D CS-563 CS-583C CS-583D CS-531C CP-533 CB-334D CS-533 CP-663E CS-531 CP-433C CP-563 CB-214C CB-335D CB-634C CP-323C CS-573C CS-573D CS-533C CS-533D CS-683E CB-434B CP-563D CS-563C CS-563D CP-563C

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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