A-Premium Camshaft & Crankshaft Position Sensor 2-Pack for GM Vehicles — Black, OE-Style with Blade Terminals

A-Premium's 2-pack includes one camshaft position sensor and one crankshaft position sensor designed to restore accurate engine timing signals for a wide range of GM vehicles.

These two engine management sensors monitor the rotational positions of the camshaft and crankshaft and feed that data to your vehicle's computer to help control ignition and fuel delivery. Packaged together in a box and available with a one-year unlimited-mileage warranty, this A-Premium set is built to directly replace worn or failed OE sensors listed by reference numbers and vehicle fitments below.

Which vehicles will these sensors fit?

They are manufactured to fit many General Motors platforms across the late 1990s through mid-2000s. Check the specific model year ranges and reference numbers against your VIN or parts manual before purchasing to confirm compatibility.

• Cadillac CTS (2004–2005), Escalade/EXT/ESV (2002–2006)
• Chevrolet Avalanche, Camaro, Corvette, Silverado, Suburban, Tahoe, Express (various 1999–2007 ranges)
• GMC Sierra, Yukon, Envoy, Savana, Hummer H2, Isuzu Ascender and select NPR/NPR-HD models

How do these sensors affect engine performance?

Camshaft and crankshaft position sensors provide the timing signals needed for precise spark and injection events. When functioning correctly they help the engine start reliably, run smoothly, and manage emissions; a failing sensor can cause misfires, hard starts, or limp-home modes.

• Restores accurate timing input to the engine control unit (ECU)
• Reduces chances of misfires and rough idling caused by incorrect position data
• Helps maintain proper fuel injection timing and ignition advance

What are the key specifications and part references I should know?

The set contains one camshaft position sensor and one crankshaft position sensor with blade terminals and either two or three pins depending on the sensor type. Several OEM and aftermarket reference numbers are listed to help you cross-reference and ensure you receive the correct replacement parts for your vehicle.

• Terminal quantity: 2 pins or 3 pins; terminal type: blade
• Color: black; packaging: box; package quantity: two sensors (one cam, one crank)
• Cross-reference numbers include PC273, 12555566, 12560228, 19420372, 1800563 and others for matching

How difficult is installation and what should I prepare?

Installation complexity varies by vehicle: some sensors are easily accessible while others may require lifting the intake, removing trim, or accessing the engine from underneath. Basic hand tools, a torque wrench, and safety precautions are typically sufficient; consult a repair manual for torque specs and step-by-step instructions.

• Bring vehicle-specific repair guide or OEM torque specifications
• Prepare hand tools, socket set, and possibly a lift or jack stands for access
• Disconnect battery before replacing sensors to avoid electrical faults

Who is this for: Owners and independent mechanics who need a reliable, OE-replacement camshaft and crankshaft position sensor pair for mid-1999 to 2007 GM cars, trucks, SUVs, and commercial platforms. This A-Premium 2-pack is aimed at anyone restoring engine timing signals after sensor failure, performing preventive maintenance, or replacing parts during an engine service—particularly when matching a listed reference number or fitment range.