{"product_id":"casalytics-12v-40a-spdt-automotive-relay-15328864-4-pack-gm-a-c-starter-fan-control-replacement","title":"Casalytics 12V 40A SPDT Automotive Relay 15328864 (4-Pack) – GM A\/C, Starter \u0026 Fan Control Replacement","description":"\u003ch2\u003eElevate GM electrical reliability with Casalytics Relay 15328864\u003c\/h2\u003e\n\u003cp\u003eUpgrade your GM vehicle’s electrical performance with the Casalytics Relay 15328864 Set. This 12V\/40A SPDT relay is engineered as a direct OEM replacement, designed to power essential systems like A\/C compressors, starter circuits, and cooling fans. Built for durability, it mirrors the resilience drivers expect on daily commutes and occasional off-road trips alike.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Casalytics Relay 15328864?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad GM compatibility.\u003c\/strong\u003e Direct replacement options span Chevy, GMC, Buick, Pontiac, and Cadillac models from 1994–2011, covering a wide range of part numbers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSPDT versatility.\u003c\/strong\u003e Single Pole Double Throw lets you switch between two circuits, simplifying complex electrical layouts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP65 sealed protection.\u003c\/strong\u003e Sealed or dust-cover variants guard against moisture, dust, and vibration for long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e40A heavy-duty capacity.\u003c\/strong\u003e Reliable handling of high-demand loads such as radiators, pumps, and defoggers without overheating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat you get and where it shines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C and cooling.\u003c\/strong\u003e Powers compressors and radiator fans for smooth climate and engine cooling operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowerful engine and lighting support.\u003c\/strong\u003e Suitable for starter circuits, defoggers, and auxiliary lighting in demanding conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable in tough environments.\u003c\/strong\u003e Built to withstand vibration and debris with IP65 sealing options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEasy installation and rugged design\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-and-play compatibility.\u003c\/strong\u003e Socket or panel mounting makes installation fast with no wiring overhaul required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide temperature range.\u003c\/strong\u003e Operates from -40°C to +125°C to support hot summers and cold starts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-pack convenience.\u003c\/strong\u003e Stock up for multiple circuits or spare replacements in one purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Verify your vehicle year, make, and part number for a precise fit. Do not exceed 12V\/40A ratings to prevent overheating. While outcomes can vary, these relays are designed to offer reliable control across GM applications.\u003c\/p\u003e\n\u003ch3\u003eReal-world use scenarios\u003c\/h3\u003e\n\u003cp\u003eIn everyday driving, expect crisp relay engagement for climate control and engine management functions. Off-road enthusiasts may appreciate sealed protection against dust and moisture in rugged environments, contributing to steady electrical performance under vibration.\u003c\/p\u003e\n\u003cp\u003eCasalytics combines practical design with tested reliability, offering a thoughtful balance of compatibility, durability, and ease of use for GM vehicles.\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: What vehicles is the Casalytics Relay 15328864 compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed as a direct GM replacement, it fits Chevy, GMC, Buick, Pontiac, and Cadillac models within the 1994–2011 range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What benefits does this 12V 40A SPDT relay offer for my electrical system?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Handles power-hungry components like A\/C, fans, or fuel pumps with SPDT flexibility and IP65 sealing for better durability in challenging conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Casalytics","offers":[{"title":"Default Title","offer_id":42465052000341,"sku":"B0DZWVWP1H","price":28.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/casalytics-relay-15328864-pack.jpg?v=1777996862","url":"https:\/\/plentytorque.co.uk\/products\/casalytics-12v-40a-spdt-automotive-relay-15328864-4-pack-gm-a-c-starter-fan-control-replacement","provider":"PlentyTorque","version":"1.0","type":"link"}