Garmin Threaded Collar CCU-to-ECU Extension Cable, For GHP 12/20 and Reactor/Reactor 40 Autopilots

Overview

The Garmin CCU Extension Cable is an extension cable that lets you mount the autopilot Course Computer (CCU or Reactor) farther from the Electronic Control Unit (ECU) than the standard 3 m (9.8 ft) interconnect.

It comes in 5 m (16.4 ft), 15 m (49.2 ft), and 25 m (82.0 ft) lengths for routing through consoles, bulkheads, and cable chases while keeping the CCU location flexible.

Threaded-collar connectors help keep the connection seated after the collar is hand-tightened, which matters when the boat sees vibration and regular washdowns.

Key features

• Extends the CCU or Reactor connection beyond the typical 3 m (9.8 ft) run from the ECU
• Available lengths: 5 m (16.4 ft), 15 m (49.2 ft), and 25 m (82.0 ft)
• Threaded-collar connectors that lock in place with a hand-tightened collar
• Used on Garmin GHP 12, GHP 20, and Reactor or Reactor 40 autopilot systems as the ECU-to-CCU or Reactor extension

Variants

This cable is offered in multiple lengths to match different boat layouts.

The difference between variants is cable length, which is typically determined by the planned routing path between the ECU and the CCU or Reactor, including service loops and strain relief.

• 010-11156-30: Length 5 m. Suits compact installations where the ECU and CCU can be mounted relatively close together.
• 010-11156-31: Length 15 m. Covers mid-size runs that pass through a console, hardtop, or helm to a machinery space.
• 010-11156-32: Length 25 m. Intended for long routing on larger vessels or layouts with extended cable chases.

Compatibility and fit

This is the ECU-to-CCU extension cable used on Garmin GHP 12 and GHP 20 autopilot systems, and on Reactor and Reactor 40 autopilot systems. It installs in-line between the system interconnect cable and the CCU or Reactor.

For best fit, confirm your autopilot system family and the connector style before ordering so the extension mates cleanly with your existing harness.

Installation and routing

Plan the route before pulling the cable. Keep the run supported so it cannot chafe on fiberglass edges, avoid tight bends, and route away from high-heat zones in engine rooms.

Thread the collars by hand until snug, then secure the cable near each connector to reduce strain. Leave enough slack for service access to the CCU and ECU without tugging on the connectors.

On-board use

A good match for autopilot installs where the ECU is mounted near the steering pump or actuator while the CCU needs to sit farther away, such as closer to the boat's centerline or in a location with less vibration.

It also helps during refits when existing cable chases dictate a longer run than the standard interconnect allows.

Safety notice

California Proposition 65 warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

Learn more.

Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

Learn more.

Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

Learn more.