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Steel Metric Flareless Fitting, 12.00 mm S Series Union

Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	Maximum Operating Pressure 630	Series S	Supplier Part Number WAL037856	Tube O.D. 12	Tube O.D. 12	Alternate Part Numbers Alternate Part Number C1KW89	Product Weight 0.13 lbs

Product Questions & Answers 3

Product Questions & Answers

Got a line running 12mm tube and need a union to splice two sections together, this the right piece for that?

Question by: Bobby K on May 3, 2025, 12:14 PM

For a straight 12mm metric flareless tube connection, yes, that's exactly what this fitting handles. It's an S series union, so both ends accept 12mm flareless tube. No flaring required on your tube ends, which makes field assembly a lot cleaner. Just make sure your tubing meets the flareless spec before you button it up.

Answer by: Customer Support on May 4, 2025, 7:22 PM

Will this fitting work with standard metric tubing?

Question by: Todd H on Feb 13, 2026, 7:18 AM

This Eaton Aeroquip fitting is designed to connect 12.00 mm metric tubes in hydraulic systems, ensuring a secure, flareless connection.

Answer by: Customer Support on Feb 15, 2026, 6:29 AM

trying to replace an old union, is C1KW89 the same thing as WAL037856 or are those different parts?

Question by: Duane A on Apr 12, 2025, 5:27 PM

Part numbers are tied together on this one. WAL037856 is the SKU and supplier part number, and C1KW89 is listed as an alternate part number for the same steel metric flareless union.

Answer by: Customer Support on Apr 14, 2025, 6:34 AM

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