Casalytics 12V 40A SPDT Automotive Relay 15328864 (4-Pack) – GM A/C, Starter & Fan Control Replacement

Elevate GM electrical reliability with Casalytics Relay 15328864

Upgrade 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.

Why choose the Casalytics Relay 15328864?

• Broad GM compatibility. Direct replacement options span Chevy, GMC, Buick, Pontiac, and Cadillac models from 1994–2011, covering a wide range of part numbers.
• SPDT versatility. Single Pole Double Throw lets you switch between two circuits, simplifying complex electrical layouts.
• IP65 sealed protection. Sealed or dust-cover variants guard against moisture, dust, and vibration for long-lasting performance.
• 40A heavy-duty capacity. Reliable handling of high-demand loads such as radiators, pumps, and defoggers without overheating.

What you get and where it shines

• A/C and cooling. Powers compressors and radiator fans for smooth climate and engine cooling operation.
• Powerful engine and lighting support. Suitable for starter circuits, defoggers, and auxiliary lighting in demanding conditions.
• Durable in tough environments. Built to withstand vibration and debris with IP65 sealing options.

Easy installation and rugged design

• Plug-and-play compatibility. Socket or panel mounting makes installation fast with no wiring overhaul required.
• Wide temperature range. Operates from -40°C to +125°C to support hot summers and cold starts.
• 4-pack convenience. Stock up for multiple circuits or spare replacements in one purchase.

Note: 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.

Real-world use scenarios

In 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.

Casalytics combines practical design with tested reliability, offering a thoughtful balance of compatibility, durability, and ease of use for GM vehicles.