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Danfoss / Eaton Coupling

Description & Features

A brass push-to-connect swivel straight adapter with a 1/4 in. push-to-connect end and a 1/8 in. NPTF female port, this Danfoss / Eaton Coupling is part of the Weatherhead line and built for reliable performance in air brake system applications. Brass construction provides durability, while Dura-Kote plating adds a layer of corrosion resistance suited to demanding service environments.

Rated for operating pressures above SAE standards, this fitting offers design flexibility within a broad range of compatible styles. It is intended for use in air brake systems where temperatures do not exceed +200°F and where exposure to battery acid, fuel, water, or oil is not present.

SKU: IG1866X6

Supplier Part Number (MPN): 1866X6

Specifications

Application Air brake systems except where temperatures exceed +200°F or where battery acid can drip on tubing. Not for fuel, water or oil.	End Gender 1 13554	End Gender 2 13555	End Size 1 0.25	End Size 2 0.13	End Type 1 Push to Connect	End Type 2 NPTF	Features Dura-Kote plating for superior corrosion resistance\|Design flexibility with hundreds of styles to choose from\|Higher operating pressures above SAE standards	ICC Straight Adapters	Language English	Net Pack Quantity Units EA	NMFC 60	Product Material Brass	Product Width 0.69	Sub Brand Weatherhead	Supplier Part Number 1866X6	Product Weight 0.10 lbs

Product Questions & Answers (1)

Question by: Darryl S on Jan 2, 2026, 6:45 PM

Reckon this'll hold up okay in an air brake system on a truck that sees some pretty rough roads?

Answer by: Customer Support on Jan 4, 2026, 9:31 AM

Dura-Kote plating on this coupling provides superior corrosion resistance, so it should be more than capable of handling tough conditions and vibration on heavy-duty trucks. Just be sure to keep it clear of direct battery acid exposure.