325-3780: 383.50mm Outer Diameter Rubber D-Ring Seal
Cat® D-Ring Seal for final drive planetary and brake wheel minimizes fluid loss, ensuring efficient hydraulic fluid usage
Brand: Cat
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325-3780: 383.50mm Outer Diameter Rubber D-Ring Seal
Cat® D-Ring Seal for final drive planetary and brake wheel minimizes fluid loss, ensuring efficient hydraulic fluid usage
Brand: Cat
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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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Description
Description
D-Rings are used in dynamic applications. These seals feature either a curved inside or a curved outside profile to optimize performance and sealing capacity.
Cat® D-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 D-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation. Dimensions of our D-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression. Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Warning:This product can expose you to chemicals including Tetrafluoroethylene, which is known to the State of California to cause cancer, and Perfluorooctanoic acid (PFOA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
D-Rings are used in dynamic applications. These seals feature either a curved inside or a curved outside profile to optimize performance and sealing capacity.
Cat® D-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 D-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation. Dimensions of our D-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression. Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
Warning:This product can expose you to chemicals including Tetrafluoroethylene, which is known to the State of California to cause cancer, and Perfluorooctanoic acid (PFOA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.
Hardness (Shore A): 90
Cross Section Direction: Curved Inside Diameter
Inside Diameter (mm): 373.1
Outside Diameter (mm): 383.5
Cross Section Width (mm): 3.53
Cross Section Height (mm): 5.20
Coating: PTFE
Color: Light Blue
Color Notes: Actual O-ring color may differ from image.
Notes: Dimensions and material descriptions provided for reference only
Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.
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Compatible Models
Compatible Models
Articulated Truck
745C735C740 GC745740C
Integrated Toolcarrier
IT62G IIIT62GIT62H
Load Haul Dump
R1300GR1300G II
Ejector Truck
740
Motor Grader
18M316M314M-314M316141816GC
Wheel Loader
950G II950G960F962H962G962G II950H950K962K950F II
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Articulated Truck
745C735C740 GC745740C
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Parts diagram for 325-3780
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DiagramDescriptionSpecificationsCompatible Models
Description for part number 325-3780
D-Rings are used in dynamic applications. These seals feature either a curved inside or a curved outside profile to optimize performance and sealing capacity.
Cat® D-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 D-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation. Dimensions of our D-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression. Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.
View More
Warning:This product can expose you to chemicals including Tetrafluoroethylene, which is known to the State of California to cause cancer, and Perfluorooctanoic acid (PFOA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.
Hardness (Shore A): 90
Cross Section Direction: Curved Inside Diameter
Inside Diameter (mm): 373.1
Outside Diameter (mm): 383.5
Cross Section Width (mm): 3.53
Cross Section Height (mm): 5.20
Coating: PTFE
Color: Light Blue
Color Notes: Actual O-ring color may differ from image.
Notes: Dimensions and material descriptions provided for reference only
Inside Diameter (in): 14.688
Outside Diameter (in): 15.098
Cross Section Width (in): 0.139
Cross Section Height (in): 0.205
Primary Sealing Material: Rubber
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Compatible Models for part number 325-3780
ARTICULATED TRUCK
745C 735C 740 GC 745 740C
INTEGRATED TOOLCARRIER
IT62G II IT62G IT62H
LOAD HAUL DUMP
R1300G R1300G II
EJECTOR TRUCK
740
MOTOR GRADER
18M3 16M3 14M-3 14M3 16 14 18 16GC
WHEEL LOADER
950G II 950G 960F 962H 962G 962G II 950H 950K 962K 950F II
