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NASA Marine Speed Log Dummy Impellor Unit Blanking Plug Clipper Target Cruiser

NASA Marine Speed Log Dummy Impellor Unit Blanking Plug Clipper Target Cruiser

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Raymarine Rudder Reference Ball Joint Kit

Genuine Raymarine Replacement Part | SKU: D143

The Raymarine D143 Ball Joint Kit is the factory-authorized replacement for the linkage components used with the M81105 Rotary Rudder Reference Transducer. This kit is essential for repairing or refreshing the mechanical connection between your boat's rudder arm and the autopilot's position sensor.

PRECISION FEEDBACK: Eliminates mechanical "slop" or play in the rudder linkage, ensuring your Evolution or SmartPilot system maintains a steady and accurate course.

Kit Contents

  • ✔ 2x Ball Joint Caps
  • ✔ 1x Rudder Mounting Assembly with Brass Ball
  • ✔ 2x M6 Stainless Steel Nuts
  • ✔ Durable Marine-Grade Construction

Technical Specs

Part Number: D143
Nut Thread: M6
Ball Diameter: 3/8" (approx 9.5mm)
Application: Rotary Rudder Feedback

Compatibility Guide

System/Unit Part Reference Notes
Rotary Transducer Raymarine M81105 Primary fitment unit
Evolution ACU ACU-100, 150, 200, 300, 400 All modern control units
Legacy Instruments ST60+, ST70, i70 Via iTC-5 or direct connection
SmartPilot SPX-5, SPX-10, SPX-30 Direct course computer connection

OEM Cross Reference

Raymarine MPN: D143 Related Unit: M81105 Legacy Ref: Autohelm D143

Questions & Answers

Is this a genuine original part?

Yes, this is an authentic Raymarine replacement component, ensuring exact factory dimensions and material quality for marine environments.

How do I know if it is compatible?

This kit is specifically designed for the Raymarine M81105 Rotary Rudder Reference. If your transducer looks like a round black unit with a single rotating arm, this is the correct linkage kit.

Does this kit include the threaded rod?

No, this kit includes the ball joints, caps, and mounting hardware. The 1/4" or M6 threaded rod is typically part of the initial transducer installation or can be purchased separately if yours is bent or missing.

Note: Please verify your original part number or transducer model against the references above before purchasing. Available at 4boats.co.uk.

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