Description
Product Overview
The Jerwickeli 15328864 is a 4‑pin, quick‑connect relay engineered for A/C compressor control in Chevrolet, GMC, GM and Buick models. Featuring silver‑alloy contacts rated for 40 amps and a 12 V DC coil, it delivers reliable switching with automatic operation. Compact dimensions (1.02 x 1.02 x 1.38 in) and a plug‑in mount simplify installation, while ISO 14001 certification assures quality and environmental compliance.
Usage
Ideal for automotive air‑conditioning systems, this relay replaces OEM part numbers OK2A167740, PW853596, 12193604, 96190189 and 9026316. Install it in the compressor control circuit to manage cooling load, improve system efficiency, and prevent overheating. Suitable for both professional mechanics and DIY enthusiasts working on vehicle HVAC repairs.

Why Choose Us
Jerwickeli combines rigorous testing with premium materials, ensuring long‑life performance under high current loads. The quick‑connect interface reduces wiring time, and the ISO 14001 compliance reflects our commitment to sustainable manufacturing. Backed by a reputable brand, this relay offers a dependable, direct‑fit replacement for multiple OEM part numbers.
Key Features
- 40 A current rating for robust A/C compressor control
- 12 V DC coil with automatic operation mode
- Quick‑connect plug‑in mounting for fast installation
- Silver‑alloy contacts provide high conductivity and durability
- ISO 14001 certified manufacturing ensures quality and eco‑friendliness
FAQ
Is this relay compatible with my Chevy Silverado?
Yes, the 15328864 relay is a direct replacement for the OEM part used in Chevrolet Silverado models equipped with the standard A/C compressor control circuit.
What does “normally open” contact type mean?
A normally open (NO) contact remains open until the relay coil is energized, at which point it closes to allow current flow, ideal for controlling the compressor.
Can I use this relay in a 24V system?
No, this relay is designed for 12V DC operation only. Using it in a 24V system could damage the coil and affect performance.
How do I verify the relay is functioning correctly after installation?
Check for proper voltage at the coil terminals and ensure the compressor engages when the A/C is turned on. A multimeter can confirm contact closure when the relay is energized.
Is the relay covered by a warranty?
Jerwickeli offers a one‑year limited warranty covering defects in materials and workmanship for this relay.





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