Airmar 175WR-4 Transducer Housing Wrench

The Airmar 175WR-4 is a single-handed wrench that holds a thru-hull transducer housing by the wrench flats on top. That keeps the housing from turning while you tighten the hull nut. It fits the B164, B175, SS164 and SS264.

Airmar changed the housing design on these transducers slightly in June 2012. This wrench is for the newer design and has an internal width of 2-3/4 inches. For the older design, use the 164WR-4 with a 2-7/16 inch internal width.

Use the 164WR-2 or 164WR-3 on the hull nut itself. Together they let one person tighten the nut without the transducer rotating out of alignment. Plan the mounting location around clean water flow and cable routing before drilling or bonding anything in place. Browse more fish finder accessories.

• Holds the transducer housing while tightening
• Fits B164, B175, SS164 and SS264 (post-June 2012)
• 2-3/4 inch internal width
• Use with a 164WR-2 or 164WR-3 hull nut wrench