Cat® 45.8 mm Outer Diameter Fitting Seal for driving control block in a hydraulic system
Brand: Cat
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166-3781: 45.8mm Outer Diameter Fitting Seal
Cat® 45.8 mm Outer Diameter Fitting Seal for driving control block in a hydraulic system
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
Description: Flat face seals are used in static sealing for fluid line connectors.
Attributes: These seals primarily service the male metric thread fluid line connectors used in ISO 1179-2 and ISO 9974-2 standards.
Cat® sealing system uses a robust design, testing, and validation process. Buy the latest Genuine Cat® seal to protect your investment.
Applications: Flat face seals are used in a wide variety of applications throughout the entire Cat product line.
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: Flat face seals are used in static sealing for fluid line connectors.
Attributes: These seals primarily service the male metric thread fluid line connectors used in ISO 1179-2 and ISO 9974-2 standards.
Cat® sealing system uses a robust design, testing, and validation process. Buy the latest Genuine Cat® seal to protect your investment.
Applications: Flat face seals are used in a wide variety of applications throughout the entire Cat product line.
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
Seal Type: Flat Face
Material: NBR,Nitrile / NBR / HNBR / XNBR Rubber
Inside Diameter (mm): 38.8
Outside Diameter (mm): 45.8
Thickness (mm): 2
Inside Diameter (in): 1.53
Outside Diameter (in): 1.80
Thickness (in): 0.08
Units of MeasureUSMetric
Seal Type: Flat Face
Material: NBR,Nitrile / NBR / HNBR / XNBR Rubber
Inside Diameter (mm): 38.8
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Compatible Models
Compatible Models
Battery Charger
MEC500
Shear-Demolition/Scrap
VHS-50S340
Grapple-Orange Peel
GSH15BGSH20B
Electric Rope Shovel
74957495 HF
View More
Battery Charger
MEC500
Parts diagram for 166-3781
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 166-3781
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Description for part number 166-3781
Description: Flat face seals are used in static sealing for fluid line connectors.
Attributes: These seals primarily service the male metric thread fluid line connectors used in ISO 1179-2 and ISO 9974-2 standards.
Cat® sealing system uses a robust design, testing, and validation process. Buy the latest Genuine Cat® seal to protect your investment.
Applications: Flat face seals are used in a wide variety of applications throughout the entire Cat product line.
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 166-3781
Units of Measure
USMetric
Seal Type: Flat Face
Material: NBR,Nitrile / NBR / HNBR / XNBR Rubber
Inside Diameter (mm): 38.8
Outside Diameter (mm): 45.8
Thickness (mm): 2
Inside Diameter (in): 1.53
Outside Diameter (in): 1.80
Thickness (in): 0.08
View More
Compatible Models for part number 166-3781
BATTERY CHARGER
MEC500
SHEAR-DEMOLITION/SCRAP
VHS-50 S340
GRAPPLE-ORANGE PEEL
GSH15B GSH20B
ELECTRIC ROPE SHOVEL
7495 7495 HF
View More
Warranty Information
Warranty Information
Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.
Need More Help? Contact Us
Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.
Need More Help? Contact Us
Find a DealerEmail
Warranty Information
Warranty Information
Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.
Need More Help? Contact Us
Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.
