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HomeHydraulicsOther Hydraulic Components5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter
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HydraulicsOther Hydraulic Components5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter
5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter

Fluid Carrying Elbow Adapter (NPSM to NPTF)

Brand: Cat

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5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter
5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter
5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter
5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter
5H-4778: Thread Hex Head Union 90 Degrees Elbow Adapter

Fluid Carrying Elbow Adapter (NPSM to NPTF)

Brand: Cat

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Description
Description

Description:
Cat® Fluid Carrying Adapters are held to the highest standards of quality and reliability. These adapters are manufactured to exacting tolerances to ensure leak free connections. Each Cat Fluid Carrying Adapter is designed to meet or exceed industry standards for operating pressure, assembly torque capability, and corrosion protection to ensure a long life and proper machine functionality.

Attributes:
• Fluid carrying component
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• The image provided is for reference only. Adapter construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Application:
Adapters are designed to connect fluid carrying hoses and tubes to other system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

Warning:This product can expose you to chemicals including Lead and lead compounds, 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.
Cat® Hose Assembly Products Warning
Improper selections of hose and coupling combinations will void warranties and may result in serious personal injury or death, property damage, or component and machine system failure. Cat® hose assembly products are designed and tested as a system to achieve a reliable connection, thus maximizing hydraulic system safety and dependability. It is also recommended that appropriate and properly maintained Caterpillar tooling is used to ensure hoses are crimped to specifications. Use of Caterpillar hose with other manufacturer’s couplings or the use of Caterpillar couplings with other manufacturer’s hose may result in the production of unreliable, unsafe or under-performing hose assemblies. It is not recommended or authorized by Caterpillar. For additional information see SAE J1273 section 6.3 and ISO 17165-2 section 6.3.

Description:
Cat® Fluid Carrying Adapters are held to the highest standards of quality and reliability. These adapters are manufactured to exacting tolerances to ensure leak free connections. Each Cat Fluid Carrying Adapter is designed to meet or exceed industry standards for operating pressure, assembly torque capability, and corrosion protection to ensure a long life and proper machine functionality.

Attributes:
• Fluid carrying component
• Designed to meet or exceed the performance of industry standard parts and provide leak free connections
• The image provided is for reference only. Adapter construction may differ slightly from the image depicted, but the part is designed to be interchangeable with the OEM part.

Application:
Adapters are designed to connect fluid carrying hoses and tubes to other system components. Consult your owner’s manual or contact your local Cat Dealer for more information.

Warning:This product can expose you to chemicals including Lead and lead compounds, 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.
Cat® Hose Assembly Products Warning
Improper selections of hose and coupling combinations will void warranties and may result in serious personal injury or death, property damage, or component and machine system failure.
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Specifications
Specifications
Type: Elbow, 90°
Connector Type: NPSM to NPTF
Material Description: Plated Steel
Thread: 1/4-18 NPSM; 1/4-18 NPTF
Type: Elbow, 90°
Connector Type: NPSM to NPTF
Material Description: Plated Steel
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Compatible Models
Compatible Models
Generator Set
3412C3306B34563406C
Wheel Tractor
650B633E II651B651E660B627621623637631D631E631C631G641651641B657666B666623B623G623E623F621B633C657E657B621R621E621F633D657G621G621S613C II639D627B627G627E627F637G637D637E
Hydraulic Control
48
Vehicular Engine
D348
Off Highway Truck
793D773793F785D789785793789G789D
Motor Grader
120H120G16120K135H160H ES12H NA163H120H ES160140K140H140G16H16G140H NA14M130G140K 2140143H14H14G12H12G12K160K160H160G16H NA160H NA135H NA12H ES14H NA163H NA120H NA140H ES120K 2
Rotary Cutter
RC20
Wheel Loader
994994F994D994H
Track-Type Tractor
D9ED9GD9H
Wheel Skidder
518528
Gen Set Engine
34563304B3306B33063304
Marine Engine
3306B330433063304B
Pipelayer
583H
Wagon
776772
Mining Excavator
5230B513052305130B
Industrial Engine
D353CD353ED353D
Quarry Truck
777E775D775B773E771D771C
Wheel Scraper
627651B633641B666B631G631D631E621E657G621G621F633B633D621B657E657B623B623E637E637G637B637D666627G627F639D627B627E637641657
Truck
785789793797793D793B793C793F69D773E785G773D785C785D797B773B785B793F CMD793F OEM775E775D795F AC789C789D777C777B789B777D777F769773777769B769D769C
Tractor
772776776D776C776B768C768B772B784C784B
Ripper Scarifier
12G140G16G130G
Feller Buncher
FB518
View More
Generator Set
3412C3306B34563406C
Warranty Information
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Parts diagram for 5H-4778
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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.

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