This product will allow you to mount your Humminbird Helix 5 and consists of a round 2.5" (6.35cm) diameter base (with Universal AMPs Hole Pattern), a double socket arm and a 1.5" x 3" (2.54cm x 7.62cm) rectangular base. The rectangular base has four holes with a center to center pattern of 1" x 2.5" (2.54cm x 6.35cm). 

Suitable for weights up to around 4.5kg.

Compatible Devices (last updated 9th March 2022):
HELIX 5 DI
HELIX 5 DI GPS
HELIX 5 SI GPS
HELIX 5 SI GPS KVD
HELIX 5 SONAR GPS
HELIX 5 SONAR
HELIX 5 XD GPS

• Center to Center Hole Pattern: 1" x 2.5" (2.54cm x 6.35cm)
• Weight Capacity: Approx 4.5kg
• Overall Height: 7.35" (18.67cm)
• Material: Powder Coated Marine Grade Aluminium
• Ball Size: 1.5" Rubber Ball Size

Note: The "U" in the part number reflects product packaged in poly bag. Hardware for mounting to device not included with purchase.