SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

Steel Metric Flareless Fitting, 12.00 mm S Series Union

Ask A Question

Description & Features

This Eaton Aeroquip steel fitting is a metric flareless union designed for robust hydraulic connections. Constructed from high-quality steel, this fitting ensures durability and reliable performance in demanding hydraulic environments.

The C1KW89 fitting is part of the S series and features a 12.00 mm connection, making it suitable for a variety of applications requiring secure and leak-free connections. Ensure optimal fluid compatibility by consulting the provided document link.

SKU: WAL037856

Supplier Part Number (MPN): WAL037856

Alternate Part Numbers: C1KW89

Specifications

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

Related Documents

Similar Products

Model Number Tube O.D. Series Maximum Operating Pressure L5 Price Action
Steel Metric Flareless Fitting, 16.00 mm S Series Union

WAL037858 Steel Metric Flareless Union

16

S

630

Steel Metric Flareless Fitting, 25.00 mm S Series Union

WAL037860 Steel Metric Flareless Union

25

S

420

Steel Metric Flareless Fitting, 30.00 mm S Series Union

WAL037861 Steel Metric Flareless Union

30

S

420

Steel Metric Flareless Fitting, 10.00 mm L Series Union

WAL037850 Steel Metric Flareless Union

10

L

500

Steel Metric Flareless Fitting, 12.00 mm S Series Union

WAL037856 Steel Metric Flareless Union

12

S

630

Steel Metric Flareless Fitting, 20.00 mm S Series Union

WAL037859 Steel Metric Flareless Union

20

S

420

Steel Metric Flareless Fitting, 15.00 mm L Series Union

WAL373366 Steel Metric Flareless Union

15

L

400

Steel Metric Flareless Fitting, 18.00 mm L Series Union

WAL373367 Steel Metric Flareless Union

18

L

400

Product Questions & Answers (3)

Question by: Bobby K on May 3, 2025, 12:14 PM
Got a line running 12mm tube and need a union to splice two sections together, this the right piece for that?
Answer by: Customer Support on May 4, 2025, 7:22 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.
Question by: Todd H on Feb 13, 2026, 7:18 AM
Will this fitting work with standard metric tubing?
Answer by: Customer Support on Feb 15, 2026, 6:29 AM
This Eaton Aeroquip fitting is designed to connect 12.00 mm metric tubes in hydraulic systems, ensuring a secure, flareless connection.
Question by: Duane A on Apr 12, 2025, 5:27 PM
trying to replace an old union, is C1KW89 the same thing as WAL037856 or are those different parts?
Answer by: Customer Support on Apr 14, 2025, 6:34 AM
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.