{"product_id":"degowget-heater-a-c-control-switch-for-peterbilt-q21-6012-direct-replacement-plug-and-play","title":"Degowget Heater \u0026 A\/C Control Switch for Peterbilt Q21-6012 — Direct Replacement, Plug-and-Play","description":"\u003cp\u003e\u003cstrong\u003eDegowget Q21-6012 is a direct-replacement heater and air-conditioning control switch engineered to restore reliable HVAC operation in compatible Peterbilt trucks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Peterbilt cab has unresponsive climate knobs, inconsistent fan speeds, or intermittent temperature control, this Degowget control switch provides a plug-and-play solution designed to meet original-equipment fit and function. It replaces the factory climate control module on specific Peterbilt models and model years, bringing back predictable heating and cooling without costly diagnostic downtime.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Peterbilt models and years does this control switch fit?\u003c\/h3\u003e\n\u003cp\u003eThis control assembly is compatible with a wide range of Peterbilt models across multiple production years. Confirm the part number Q21-6012 (also shown as Q216012) against your truck VIN or existing panel before ordering to ensure exact fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Peterbilt 325 and 330 model years 2011–2020\u003c\/li\u003e\n  \u003cli\u003eFits 335, 337, 348 series for overlapping years; see vehicle specifics\u003c\/li\u003e\n  \u003cli\u003eCompatible with 357 (2006–2007), 378 and 379 (2006–2010)\u003c\/li\u003e\n  \u003cli\u003eWorks with 365, 367, 388 ranges (2006–2020) and 385, 386 (2006–2015)\u003c\/li\u003e\n  \u003cli\u003eAlso fits 384 (2008–2015) and 389 (2006–2024)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this replacement improve my HVAC performance?\u003c\/h3\u003e\n\u003cp\u003eThe Degowget module replaces worn or failed controls that cause unsteady fan operation, nonresponsive temperature adjustments, or stuck mode selections. With restored circuitry and properly labeled controls, the driver regains simple, deterministic control over cabin climate.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores accurate fan speed and mode selection\u003c\/li\u003e\n  \u003cli\u003eBrings predictable temperature response to the HVAC system\u003c\/li\u003e\n  \u003cli\u003eEliminates common electrical faults in aging control panels\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play design reduces installation time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the product specifications and quality assurances?\u003c\/h3\u003e\n\u003cp\u003eDegowget manufactures this climate control switch to rigorous standards and subjects each unit to quality checks to ensure reliable operation comparable to OEM performance. The part is identified by numbers Q21-6012 and Q216012—verify these against your existing part before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePart numbers: Q21-6012 \/ Q216012\u003c\/li\u003e\n  \u003cli\u003eManufactured to meet strict OEM-like quality controls\u003c\/li\u003e\n  \u003cli\u003ePre-tested for electrical continuity and button responsiveness\u003c\/li\u003e\n  \u003cli\u003eBacked by a one-year warranty from Degowget\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is installation and what should I check first?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward for anyone familiar with dash panels and truck wiring—most replacements use the existing mounting points and connector harness. Before starting, power down the vehicle and compare the old module to the Degowget unit to confirm connector type and part number match.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePower vehicle down and disconnect battery before handling\u003c\/li\u003e\n  \u003cli\u003eCompare connector pins and housing to ensure compatibility\u003c\/li\u003e\n  \u003cli\u003eUse basic hand tools to remove trim and secure the new unit\u003c\/li\u003e\n  \u003cli\u003eTest all functions before reassembling dash trim\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This control switch is intended for fleet managers, owner-operators, and truck maintenance professionals who need a reliable, cost-effective replacement for malfunctioning Peterbilt HVAC controls. It’s ideal for those who want a high-quality aftermarket module that mirrors OEM fit and function and includes a one-year warranty for peace of mind.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is Q21-6012 the correct part number for my Peterbilt?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check your existing panel for part numbers Q21-6012 or Q216012 and compare model-year fitment lists before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does Degowget offer a warranty on this control switch?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, Degowget includes a one-year warranty covering manufacturing defects on this HVAC control module.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Degowget","offers":[{"title":"Default Title","offer_id":55170541224279,"sku":"B0GHMS6TSB","price":112.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/degowget-front-panel.jpg?v=1790430540","url":"https:\/\/britishgarage.co.uk\/products\/degowget-heater-a-c-control-switch-for-peterbilt-q21-6012-direct-replacement-plug-and-play","provider":"British Garage","version":"1.0","type":"link"}