{"id":10918,"date":"2026-05-01T14:07:05","date_gmt":"2026-05-01T11:07:05","guid":{"rendered":"https:\/\/raymarine.ee\/?post_type=product&#038;p=10918"},"modified":"2026-08-21T17:23:51","modified_gmt":"2026-08-21T14:23:51","slug":"st4000-mk2-motor-assembly-a18086","status":"publish","type":"product","link":"https:\/\/www.navsystems.ee\/en\/product\/st4000-mk2-motor-assembly-a18086\/","title":{"rendered":"ST4000 MK2 Motor Assembly A18086"},"content":{"rendered":"<p data-start=\"115\" data-end=\"448\">The Raymarine 4000 MK2 Wheel Drive motor (A18086) is a necessary spare part if you are planning a longer holiday trip. Before ordering the motor, ensure that the voltage is actually reaching the drive's connector, and check the connection cable and plugs. If the motor spins but the belt pulley does not move, then the gearbox is most likely broken. If the belt pulley moves but the drive does not, then you probably only need a new drive belt. When replacing the motor, several components need to be removed from the drive; be careful not to lose anything and take pictures of the different stages before disassembling just in case. The old motor needs to be desoldered from the two cables coming from the socket, and these cables need to be soldered onto the new motor. On the new motor, one terminal is marked with a red dot; please solder the red wire coming from the socket to this terminal and the black wire to the unmarked terminal. The new motor already has pre-soldered bypass capacitors, and these must remain as they are.<\/p>\n<p data-start=\"115\" data-end=\"448\"><span style=\"color: #993300;\">NB! See mootor ei sobi vanale ST4000 v\u00f5i Autohelm mustale ajamile, hammasratta diameeter ja hammaste arv ei sobi, muud m\u00f5\u00f5dud on p\u00e4ris sarnased ja v\u00f5lli l\u00e4bim\u00f5\u00f5t on 3,175 mm, (1\/8&#8243;).\u00a0<\/span><\/p>\n<p data-start=\"115\" data-end=\"448\"><strong>Guides<\/strong><\/p>\n<p data-start=\"115\" data-end=\"448\">Download <a href=\"https:\/\/navsystems.ee\/wp-content\/uploads\/2026\/05\/4000serv.pdf\" target=\"_blank\" rel=\"noopener\">ST4000 MKII Maintenance Manual<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Raymarine 4000 Mk2 Wheel Drive mootor (A18086) on vajalik varuosa kui plaanis on pikem puhkusereis. Enne mootori tellimist veendu, et toitepinge \u00fcldse j\u00f5uab ajami pistikuni, kontrolli \u00fchenduskaablit ja pistikuid. Kui mootor k\u00e4ib ringi, aga rihma veorull ei liigu, siis suure t\u00f5en\u00e4osusega on hoopis Gearbox katki. Kui rihma veorull liigub, aga ajam ei liigu, siis ilmselt vajad ainult uut hammasrihma. Tutvu kindlasti ka ST4000 MKII juhendiga ja vajadusel pea n\u00f5u meie spetsialistiga.<\/p>\n<p><span style=\"color: #993300;\">NB! See mootor ei sobi vanale ST4000 v\u00f5i Autohelm mustale ajamile, hammasratas ei sobi, muud m\u00f5\u00f5dud on p\u00e4ris sarnased.<\/span><\/p>","protected":false},"featured_media":13704,"template":"","meta":{"_acf_changed":false,"_members_access_role":[],"_members_access_error":""},"product_brand":[],"product_cat":[52,103,65],"product_tag":[],"class_list":["post-10918","product","type-product","status-publish","has-post-thumbnail","product_cat-autopiloot-autopiloodid","product_cat-raymarine","product_cat-roolipiloodid","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ST4000 MK2 Motor Assembly A18086: Essential Spare Part - NavSystems<\/title>\n<meta name=\"description\" content=\"Raymarine 4000 Mk2 Wheel Drive Bulkhead\/Box paigalduskomplekt v\u00f5imaldab ajami mootori korrektset kinnitamist kandilise pedestaali sisse.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.navsystems.ee\/en\/product\/st4000-mk2-motor-assembly-a18086\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ST4000 MK2 Motor Assembly A18086\" \/>\n<meta property=\"og:description\" content=\"Raymarine 4000 Mk2 Wheel Drive Bulkhead\/Box paigalduskomplekt v\u00f5imaldab ajami mootori korrektset kinnitamist kandilise pedestaali sisse.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.navsystems.ee\/en\/product\/st4000-mk2-motor-assembly-a18086\/\" \/>\n<meta property=\"og:site_name\" content=\"NavSystems\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/NavSystems\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-21T14:23:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.navsystems.ee\/wp-content\/uploads\/2026\/05\/A18086-st4000-mk2-driver-motor.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1254\" \/>\n\t<meta property=\"og:image:height\" content=\"1175\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Price\" \/>\n\t<meta name=\"twitter:data1\" content=\"123,69&nbsp;&euro;\" \/>\n\t<meta name=\"twitter:label2\" content=\"Availability\" \/>\n\t<meta name=\"twitter:data2\" content=\"In stock\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.navsystems.ee\\\/product\\\/st4000-mk2-motor-assembly-a18086\\\/\",\"url\":\"https:\\\/\\\/www.navsystems.ee\\\/product\\\/st4000-mk2-motor-assembly-a18086\\\/\",\"name\":\"ST4000 MK2 Motor Assembly A18086: Essential Spare Part - 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