A-Premium Electronic Throttle Body for Chevy GMC Buick — S20221, 65mm Bore, 6‑Pin Plug

The A-Premium Electronic Throttle Body S20221 is a direct-fit electric throttle assembly engineered to restore throttle response and engine idle control on compatible Chevy, GMC and Buick models.

Designed as a replacement for OE units, this A-Premium throttle body matches factory specifications for bore size, electrical terminals and mounting to simplify installation. Constructed from aluminum with a silver finish and a built-in throttle position sensor, it fits a broad range of late-model GM vehicles, including Equinox, Terrain, LaCrosse, Regal and Verano. The part carries cross-references such as 12670834, 12669146 and S20221 so you can verify fitment against your vehicle's existing part number.

Which vehicles will this A-Premium throttle body fit?

This unit is compatible with many 2012–2017 GM sedans and SUVs from Chevrolet, GMC and Buick. Check your current part number or vehicle application before ordering to ensure an exact match.

• Buick: LaCrosse (2012–2016), Regal (2012–2017), Verano (2012–2017)
• GMC: Terrain (2012–2017)
• Chevrolet: Equinox (2012–2017), Impala (2014), Malibu (2013–2014), Captiva Sport (2012–2015), Orlando (2012–2014)
• Reference numbers: 12670834, 12669146, 12632101, S20221, TB1295

How does the S20221 throttle body match original equipment specifications?

The A-Premium replacement mirrors key OE dimensions and electrical connections so it integrates with factory intake manifolds and wiring harnesses. It includes the throttle position sensor and the standard 6-terminal connector for direct plug-in compatibility on listed vehicles.

• Bore diameter: 65 mm to match original airflow geometry
• Housing material: lightweight aluminum with corrosion-resistant silver finish
• Terminal count: 6-pin electrical connector included
• Type: electronic throttle body with integrated throttle position sensor

What should I expect during installation and setup?

Installation typically follows the vehicle’s factory procedure: remove intake plumbing, unbolt the old throttle body, swap units and reconnect the electrical connector. Some vehicles may require a throttle relearn or ECM reset after installation; follow the vehicle manufacturer’s recommended steps or a professional’s guidance.

• Direct bolt-on design for compatible models—no modifications required
• Reconnect 6-pin harness and intake air ducting
• Perform throttle relearn or battery disconnect per service manual if needed
• Inspect sealing surface and torque bolts to manufacturer specs

What quality assurances and part references come with this product?

A-Premium provides a one-year unlimited-mileage warranty on this electronic throttle body and backs it with quality controls during manufacturing. Cross-reference numbers and fitment lists help confirm you’re ordering the correct replacement part for your vehicle.

• One-year unlimited-mileage guarantee from A-Premium
• Manufactured aluminum housing and integrated sensors
• Multiple OE reference numbers supplied for verification
• Sold as a complete throttle body assembly—ready to install

Who is this for: The A-Premium Electronic Throttle Body S20221 is aimed at DIY mechanics, independent repair shops and owners of compatible Chevrolet, GMC and Buick models who need a cost-effective, OEM-style replacement. If your vehicle shows throttle-related faults, unstable idle, or a failed throttle position sensor and your part number matches one of the listed references, this unit offers a direct-fit option backed by a one-year warranty.