Raymarine CPT-S CHIRP Sonar Transducer Transom Bracket & Hardware

Overview

The Raymarine R70496 is a transom bracket and hardware kit for the Raymarine CPT-S transom mount CHIRP sonar transducer. It is a practical replacement or service part for keeping the CPT-S mounted correctly at the stern, where transducer position has a direct effect on depth readings and sonar performance while the boat is moving.

This kit is meant for the mounting side of the installation, not for replacing the transducer, cable, or display connection. It is useful when the original bracket has been damaged, misplaced during a refit, or needs to be renewed during transducer service on a fiberglass, wood, or metal transom installation using the CPT-S transom model.

Key features

• Made for Raymarine CPT-S transom mount CHIRP sonar transducers.
• Includes the transom mounting bracket and hardware needed for the bracket installation.
• Supports proper transducer placement on the stern so the CPT-S can be tested and adjusted during setup.
• Useful as a replacement kit when servicing, remounting, or repairing an existing CPT-S transom installation.
• Accessory kit only, with no transducer, cable, display, or sonar module included.

Installation and setup

For best results, the bracket should be installed where the CPT-S can stay in clean water flow with minimal turbulence from strakes, through-hull fittings, trim tabs, or prop wash. A careful bracket position helps the transducer maintain bottom tracking and sonar returns when the boat is on plane.

The transducer height and angle should be checked with the boat in the water before the installation is finalized. This is especially important on planing hulls, where a small change at the transom can affect readings at speed.

Compatibility and fit

This kit is for Raymarine CPT-S transom mount installations. It should not be treated as a universal transducer bracket for other Raymarine transducers or third-party sonar products unless the existing equipment is specifically the CPT-S transom mount type.

Owners replacing a damaged bracket should confirm the transducer body and cable are still in good condition before installation. When the CPT-S transducer itself is worn, cracked, or giving inconsistent readings, the bracket kit will not correct those electrical or sensing issues.

Use cases on board

This part suits boat owners, installers, and service yards working on smaller fishing boats, runabouts, trailer boats, and coastal cruising boats that use a Raymarine CPT-S transom transducer. It is also helpful during refits where the transducer is being moved to a cleaner location on the transom.

What’s included

• CPT-S transom bracket
• Mounting hardware

Shipping
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Duties, taxes, and support
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