Combination design fits both S-B hex and B-AN hex nuts for versatile use
Prevents damage during assembly and maintenance to protect cooling system integrity
Compatible with 20AN hose ends and water neck adapters for water cooling system conversions
Solid steel and metal construction ensures durability and long service life
Summarized by Shop
This Wrench is a must for the safe, damage free assembly and maintenance of your cooling system. One wrench will fit both the S & B hex of the hose end.
One end of the wrench S (Socket Nut) is needed when assembling the hose end to hose. The other end B (AN Hex Nut) is needed when tightening or removing hose assembly's to Autoplumb Wa
Wrench Type
Combination
AN Size
-20
Material
Steel, Metal
Color
Black
Pattern
Solid
Summarized by Shop
5.0
22 ratings
5
4
3
2
1
Thank god for quality, I had another 20an wrench and it failed. I ordered it just to have but it came to the rescue when the other wrench started to break. The wrench from you had no problem. Thanks for quality in tools and all AN product I have bought from you. Thanks again !!!!
J
Jim · March 10, 2026
AN Wrench
Wrench did a great job of tightening 20 AN adapter onto the water pump outlet without damaging the adapter.
V
Vince · March 25, 2026
Product is very good quality and works very well it’s a bit pricey but good