DANFOSS / EATON COUPLING FD90-1044-03-04

Specifications

Application Diagnostic pressure testing for hydraulic systems	Certifications SAE J1502 Interchange	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	End Gender 1 13554	End Gender 2 13556	End Size 2 0.38	End Type 1 Push to Connect	End Type 2 SAE ORB	Features Quick connect and disconnect\|No need for special tools\|Exceeds ISO 16028 operating pressures	Flow Rate1 0.6 gallons per minute	ICC Quick Disconnect Couplings	Internal Connection Type Ball Lock	Item Type Male Half	Language English	Minimum Working Temperature -40	Net Pack Quantity Units EA	NMFC 50	Port Size 3/8	Product Material Carbon Steel	Product Width 0.62	Safety locking Mechanism Sleeve lock	Seal Material Buna-N	Sub Brand Hansen	Supplier Part Number FD90-1044-03-04	Valve Type 2 way	Product Weight 0.07 lbs

Product Questions & Answers 3

Product Questions & Answers

got a test port with 3/8 SAE ORB, will this male half hook up right or am i missing something

Question by: Judy W on Apr 18, 2025, 1:16 PM

This male half coupling is set up with a 3/8-inch SAE ORB end on one side and a push-to-connect end on the other, so it matches a 3/8 SAE ORB port and uses push-to-connect for the mating connection.

Answer by: Customer Support on Apr 20, 2025, 8:39 AM

Will this work for hydraulic pressure testing on my tractor?

Question by: Lee W on Oct 7, 2025, 8:45 PM

Designed for diagnostic pressure testing in hydraulic systems, this coupling should work for your tractor, provided your system uses compatible 3/8-inch SAE ORB end types.

Answer by: Customer Support on Oct 9, 2025, 1:16 PM

Does this coupling need any special tools to hook up, or is it pretty much plug and play right out of the box?

Question by: Jerry B on Dec 10, 2025, 10:49 AM

No tools required at all. The push-to-connect end lets you get it hooked up fast, and the ball lock mechanism holds the connection secure once engaged. The sleeve lock adds a second layer of safety so it won't pull apart unexpectedly under pressure. For diagnostic pressure testing work where you're connecting and disconnecting fairly often, that kind of toolless setup saves a real amount of time.

Answer by: Customer Support on Dec 11, 2025, 12:14 PM