Rallonge de tige Raymarine D004 51 mm pour pilote de barre franche

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Raymarine

D004

51 mm Extension

The Raymarine 51 mm extension is an essential accessory for precisely adjusting the integration of your marine equipment. Designed to extend the reach of mounts or sensors by 51 millimeters, it provides a simple and effective mechanical solution for optimizing your installations. This product is supplied alone, with no additional accessories.

Retail priceBenefit from the professional rate

$48.00 USD

$48.00 USD ~~$53.00 USD~~

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Prices exclude import taxes (rate varies by item and state). DAP delivery: import taxes are paid on delivery.

In stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Mounting type	Mechanical mounting
Material	Machined aluminum
Compatible models	All Raymarine equipment requiring a 51 mm mechanical extension
Product dimensions	Length 51 mm
IP rating	IPX7
Finish	Anodized
Installation type	Mechanical integration
Kit contents	51 mm extension
Product type	Installation accessory

Detailed description

The Raymarine D004 is a 51 mm (2 inch) tiller extension for Raymarine tiller drive autopilot actuators.

Tiller drive autopilot compatibility

This extension is designed for ST1000, ST2000, ST1000+, ST2000+ and Evolution Tiller Drive autopilots. It allows adjustment of the distance between the cockpit mounting point and the tiller when installation geometry requires a longer tiller extension.

Not a sensor or cable extension

The D004 is a mechanical part for tiller drive autopilot actuators. It does not extend cables, sensors, or electronic mounts. Check the required dimension in the autopilot installation manual before selecting the extension length.

Documentation

Type	Nom
	EN - Raymarine Tiller Pilot Installation Manual - Raymarine 51 mm Tiller Extension

Expert opinion

Pol CONIN

Digital Manager

« Raymarine 51 mm Extension: Precision and Installation Flexibility »

The Raymarine 51 mm extension is a critical mechanical adapter for installers facing alignment and mounting challenges. Its purpose is to adjust the distance between two components, whether extending a mounting shaft, positioning a sensor away from an obstruction, or optimizing the angle of a transducer. Such accessories are essential for maintaining the primary equipment's performance, as even minor misalignment can degrade signal reception or support stability. This is not an electronic component but a structural part whose reliability is vital for long-term installation integrity.

Installation is typically straightforward, involving simple insertion or screwing between existing components. However, exact compatibility with the Raymarine parts it joins must be verified, as incompatibility risks compromising waterproofing or structural integrity. This extension is commonly used when standard mounting lengths do not meet specific vessel or location requirements, providing a cost-effective alternative to custom-fabricated supports. Its role is to enable seamless integration without degrading the connected equipment's intrinsic performance.

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51 mm Extension

$48.00 USD

$48.00 USD ~~$53.00 USD~~

Frequently Asked Questions

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What is this Raymarine extension used for?

The D004 extends the ram shaft of a Raymarine tillerpilot by 51 mm. It is used to achieve the correct distance between the fixed point of the ram and the tiller pin.

In which cases should this length be chosen?

This length is selected when the measurement on the boat matches the value indicated in the Raymarine mounting chart. The goal is to keep the cylinder within its effective stroke.

How much length does this part add?

It adds 51 mm, or about 2". In the Raymarine chart, it corresponds to a dimension C of 673 mm.

Which autopilots is it compatible with?

This applies to installations of Raymarine tiller pilot systems, including ST1000/ST2000, ST1000+/ST2000+ and Evolution Tiller Drive depending on configuration.

How to choose between D003, D004, D005, D006, D007 and D008?

You must measure dimension C of the installation in the Raymarine manual. Each reference adds a different length to the cylinder rod.

Is a tiller mount or pedestal also required?

It depends on the cockpit geometry. The extension corrects the longitudinal distance; the brackets/elbows mainly adjust the tiller height; the pedestals correct the fixed point on the cockpit side.

Can this extension be cut or modified?

No. The part is designed for a specific length. Modifying it may cause misalignment or weaken the autopilot mounting.

What to check before ordering?

Measure the installation dimensions, identify the installed autopilot, and compare them with the Raymarine datasheet. If in doubt, send the dimensions or a photo of the installation to Skysat.