Description
Product Overview
The ACDelco Switch Assembly (Part No. 213-4763) is a high‑quality, machined component engineered to the exacting standards of GM OE. Constructed from durable materials, this switch offers precise operation for fuel injection pressure sensor systems. Dimensions measure 3.6 x 2 x 1.6 inches and it weighs only 0.16 ounces, making it easy to handle and install. It carries the OEM part number 12641590, ensuring a perfect fit for original equipment.
Usage
Designed for professional technicians and experienced DIYers, this switch is ideal for replacing faulty fuel injection pressure sensor switches in a wide range of GM vehicles. It performs reliably in both daily commuting and high‑performance driving conditions, providing consistent fuel flow control. 
Why Choose Us
Our commitment to GM OE quality means every ACDelco Switch Assembly is manufactured to exact specifications for fit, form, and function. Each unit undergoes rigorous testing to guarantee durability and performance, giving you confidence that the part will meet the demanding expectations of modern automotive service.
Key Features
- Machined construction for precise fit and long‑term durability
- OEM‑approved specifications ensure seamless integration
- Lightweight design simplifies handling and installation
- Compatible with a broad range of GM fuel injection systems
- Backed by ACDelco’s reputation for reliability and performance
FAQ
Is this switch compatible with all GM models?
The switch matches the OEM part number 12641590, which is used across many GM vehicles. Verify your vehicle’s service manual to confirm compatibility.
What tools are needed for installation?
Standard hand tools such as a screwdriver set and torque wrench are sufficient. No specialized equipment is required.
Can I install this part myself?
Yes, experienced DIYers can install the switch following the vehicle’s service instructions. For best results, ensure the engine is cool and disconnect the battery before beginning work.
What is the warranty on this product?
ACDelco provides a limited warranty covering manufacturing defects for a period of one year from the date of purchase.
How does this switch improve fuel system performance?
By delivering accurate pressure readings, the switch helps maintain optimal fuel delivery, enhancing engine efficiency and reducing emissions.




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