A-Premium Camshaft Position Sensor 2-Pack for GM L4 Engines — Direct-Fit, 3-Terminal Black

The A-Premium 2-pack camshaft position sensors are direct-fit replacement sensors that restore accurate cam timing signals for compatible GM 4-cylinder engines.

These two camshaft position sensors are built to match factory specifications and fit a wide range of Chevrolet, GMC, Buick, Pontiac, Saturn and Saab models using L4 engines. Each sensor has three blade terminals, comes in a boxed pair, and carries A-Premium's one-year unlimited-mileage guarantee. They replace multiple OEM reference numbers, simplifying sourcing when a failing camshaft sensor causes misfires, check-engine lights, or rough idle.

Which vehicles will these sensors fit?

These sensors are engineered for many GM mid-2000s to mid-2010s 4-cylinder applications. Check the included fitment list and reference numbers against your vehicle before purchase to confirm compatibility.

• Buick: LaCrosse (2010–2016), Regal (2011–2017), Verano (2012–2017)
• Chevrolet: Captiva Sport (2008, 2010–2015), Equinox (2010–2017), Impala (2014), Malibu (2007–2014), Cobalt, HHR
• GMC: Terrain (2010–2017); Pontiac & Saturn models listed for L4 engines
• Saab: 9-5 (2011) L4 2.0L and other 2.2L/2.4L GM-derived engines

How do these sensors connect and what are the specs?

Each sensor uses a three-terminal blade connector for a secure electrical connection and a black housing that matches OEM form and fit. The pack includes two sensors boxed for protection and straightforward installation.

• Terminal quantity: 3; terminal type: blade
• Color: black; package: 2 sensors in a box
• Replaces common OEM numbers like 12577245, 917720, PC655 and others

What signs indicate a failing camshaft position sensor?

A worn or faulty camshaft position sensor can produce drivability symptoms but symptoms vary by vehicle. Typical indicators include intermittent engine hesitation, illuminated check-engine light with codes related to cam/crank correlation, and difficulty starting in some conditions.

• Engine misfires or rough idle under load or at idle
• Check-engine light with P0340/P0341-style cam sensor codes
• Poor fuel economy or hesitation during acceleration

How straightforward is installation and can I replace it myself?

Installation is typically a moderate DIY job for someone comfortable working under the hood and disconnecting an electrical connector and a mounting bolt. Exact access and effort depend on engine layout—some models require removing an engine cover or intake components for clear access.

• Disconnect battery, unplug sensor harness, remove mounting bolt, swap sensor, reconnect
• Torque mounting fastener to factory spec and clear any stored codes after replacement
• Allow 10–60 minutes for replacement on most compatible models; consult a repair manual for model-specific steps

Who is this for: This A-Premium 2-pack is aimed at owners and mechanics who need a reliable, affordable replacement for failing camshaft position sensors on GM 4-cylinder engines. It suits owners of the listed Chevrolet, GMC, Buick, Pontiac, Saturn, and Saab models who prefer a boxed pair for convenience—either to service two sensors at once or keep a spare on hand. The sensors are also suitable for independent shops and DIYers who want OE-form replacements backed by a one-year unlimited-mileage guarantee. Always verify fitment against your vehicle's VIN and the provided reference numbers before ordering.