{"product_id":"zaposts-power-window-master-switch-for-volvo-driver-side-18-pin-restores-windows-mirrors-locks","title":"ZAPOSTS Power Window Master Switch for Volvo Driver Side 18-Pin — Restores Windows, Mirrors \u0026 Locks","description":"\u003cb\u003eZAPOSTS Power Window Master Switch is a direct-fit driver-side control module that replaces OEM part 20752918 and restores power window, mirror and lock functions on compatible Volvo trucks.\u003c\/b\u003e\n\nThis heavy-duty replacement switch is engineered to match the form and function of the original equipment for several Volvo commercial models. It is a plug-and-play driver door master switch that controls power windows, power mirrors (including heated mirror function), and door locks for the models and years listed. Before ordering, verify your vehicle model and the OEM or interchangeable part number to ensure compatibility.\n\n\u003ch3\u003eWhich Volvo models and years will this switch fit?\u003c\/h3\u003e\n\u003cp\u003eThe ZAPOSTS master switch is designed for specific Volvo truck models across multiple years. Confirm your truck is one of the listed models and that it uses a matching OEM or interchangeable number before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Volvo VAH: 2011–2015 with power locks, power mirror, heated mirrors\u003c\/li\u003e\n  \u003cli\u003eFits Volvo VHD: 2004–2015 with power locks, power mirror, heated mirrors\u003c\/li\u003e\n  \u003cli\u003eFits Volvo VNL: 2004–2017 with power locks, power mirror, heated mirrors\u003c\/li\u003e\n  \u003cli\u003eFits Volvo VT: 2004–2014 with power locks, power mirror, heated mirrors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I confirm compatibility with my current OEM part?\u003c\/h3\u003e\n\u003cp\u003eMatch the replacement to your existing switch’s part number and the physical connector arrangement. The ZAPOSTS unit replaces several common OEM numbers but always cross-check the exact code on your original part.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInterchangeable part numbers: 20953592, 20455317, 20452017, 21354601, 21277587, 20568857, 20752918\u003c\/li\u003e\n  \u003cli\u003eVisual check: confirm an 18-pin connector and identical plug shape\u003c\/li\u003e\n  \u003cli\u003eModel\/year match: confirm your truck make and year before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know before installing the replacement switch?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward but requires basic precautions to protect the switch and vehicle electronics. The unit uses a plug-and-play approach, but proper alignment and power-off steps prevent damage to pins and ensure reliable contact.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn off vehicle power before replacing the switch\u003c\/li\u003e\n  \u003cli\u003eAlign connector and insert straight to avoid pin bending or poor contact\u003c\/li\u003e\n  \u003cli\u003eConfirm the plug seats fully and securely in the socket\u003c\/li\u003e\n  \u003cli\u003eNo special tools required for standard installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat functions will this master switch control once installed?\u003c\/h3\u003e\n\u003cp\u003eOnce fitted, the master switch restores primary door controls to the driver’s panel. It handles the most common convenience and safety features expected from the original equipment configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePower window up\/down control for all doors\u003c\/li\u003e\n  \u003cli\u003ePower mirror adjustment, including heated mirror activation where applicable\u003c\/li\u003e\n  \u003cli\u003eDoor lock\/unlock control from the driver side\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for?\n\u003cp\u003eThis ZAPOSTS driver-side master switch is for fleet managers, owner-operators, and technicians needing a reliable, cost-effective replacement for a failed or intermittent driver door control on compatible Volvo VAH, VHD, VNL, and VT trucks. If your truck’s original switch shows sticky buttons, broken mirror adjustment, or intermittent lock control and it matches the listed years and part numbers, this unit is intended as a direct replacement. Always verify compatibility with your vehicle’s part number and wiring before purchase.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this switch require professional installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It is plug-and-play, but turn off power and align the connector carefully to avoid pin damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this replace OEM part 20752918?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It replaces 20752918 and other interchangeable numbers; confirm your part number before buying.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ZAPOSTS","offers":[{"title":"Default Title","offer_id":48085926445214,"sku":"B0DYSKS4WR","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/zaposts-master-switch-front-view_2d5d36c1-7191-48ab-915f-21c4f3242e17.jpg?v=1785880871","url":"https:\/\/northtrailauto.ca\/products\/zaposts-power-window-master-switch-for-volvo-driver-side-18-pin-restores-windows-mirrors-locks","provider":"North Trail Auto","version":"1.0","type":"link"}