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Danfoss / Eaton Aeroquip 4-Wire Spiral TTC Fitting

Description & Features

The Danfoss / Eaton Aeroquip 4S Series Crimp Hose Fittings are engineered for optimal performance and durability meeting the rigorous standards of SAE Code 61 Flange. Constructed from premium carbon steel these fittings offer impressive strength and resilience. The Dura-Kote plating adds significant corrosion resistance extending the lifespan of the fittings in challenging environments.

Designed to maximize uptime these fittings feature a robust and innovative build that enhances the reliability of hose assemblies. The system-engineered compatibility further improves the longevity of the hose assembly life ensuring steady and dependable performance.

Certifications include SAE J1176 highlighting the adherence to industry safety and quality standards. These crimp hose fittings are designed without the need for mandrels simplifying installation processes.

Supplier Part Number: 4S20FL16

MPN: EAR99

Specifications

Brand Aeroquip® by Danfoss	a Dimensions 3.97 in	Compatible Hose ID 1 in	Connection Size 1 1 in	Connection Size 2 1-1/4 in	Connection Type Flanged, Hose	Connection Type 1 Hose	Connection Type 2 SAE Code 61 Flange	Construction Style Crimp	Cut-Off Factor 2.41 in	Dimension Standards SAE J1176	Dimensions 3.97 in L x 2.08 in W x 2.08 in H	End Size 1 20	Finish Dura-Kote™	Fitting Type Hose Fitting	For Use With H430, H430R, H525H, H471, H810L, H600, H464 and H850 Series Hoses	Hose Dash Size 16	Inside Diameter 0.76 in	Material Steel	Material Construction Carbon Steel	nmfc 50	Seal Material EPDM	Segment Code A	Series 4S Series	Thread Sealant Without Thread Sealant

Product Questions & Answers (1)

Question by: Ray R on Sep 4, 2025, 6:47 AM

does this fitting work without a mandrel during the crimp process, or do i need special tooling to get it seated right?

Answer by: Customer Support on Sep 5, 2025, 2:36 PM

No mandrel is required for installation, which takes a fair amount of hassle out of the assembly process. The 4S Series is built to crimp without one, so standard crimp tooling handles it cleanly. That said, make sure your equipment is properly set up for the dash size, which on this one is a -16.