SKU: GMP13507128
MPN: 13507128
The Chevrolet Performance Sensor Assembly Flex-Fuel (part number 13507128) is an OE-replacement flex-fuel sensor designed for General Motors vehicles equipped with flex-fuel capability. This sensor monitors the ethanol content of fuel entering the engine, enabling the engine control module to adjust fuel injection timing and air-fuel mixture ratios in real time. For GM owners running E85 or standard gasoline interchangeably, maintaining accurate ethanol detection is critical to engine performance, fuel economy, and emissions compliance.
The sensor communicates directly with the vehicle's PCM (powertrain control module) through an electronic signal output, allowing the engine to compensate for the different combustion characteristics of E85 versus gasoline. Without proper ethanol sensing, vehicles cannot safely transition between fuel types, resulting in poor drivability, reduced fuel economy, or potential engine fault codes. This assembly measures just 0.14 lbs and fits compact mounting locations, making it a direct bolt-in replacement for OEM units showing age, corrosion, or signal drift.
Owners who experience check engine lights, rough idle on E85, or inconsistent fuel trims after extended storage or fuel system service often find that sensor replacement restores reliable flex-fuel operation. This genuine Chevrolet Performance component carries factory specifications and fit tolerances, eliminating guesswork when diagnosing fuel-system electronically issues on GM trucks, cars, and SUVs. The assembly arrives ready to install with no modifications required.
Flex-fuel sensors are consumable diagnostic components; ethanol's hygroscopic nature and the sensor's exposure to fuel contaminants mean periodic replacement is normal maintenance for high-E85-use vehicles. Sourcing OE parts ensures signal accuracy and PCM compatibility across all model years using this assembly. TacticalSurplusUSA stocks the genuine part so builders and technicians can keep GM flex-fuel systems running at factory specification.
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