Rendrox MAP/IAT Sensor Spacer Kit for 2017–2024 Silverado & Sierra 6.6L L5P — Silver spacer reduces heat, restores sensor accuracy

Rendrox Silver Spacer Kit with combined intake air pressure and temperature sensor relocates and protects the MAP/IAT sensor on 6.6L L5P Duramax trucks to restore accurate readings and reduce heat-related faults.

This kit pairs a precision-machined spacer block with a replacement intake air pressure and temperature (MAP/IAT) sensor designed for 2017–2024 Chevrolet Silverado and GMC Sierra 2500HD/3500HD 6.6L V8 Duramax engines. The spacer moves the sensor away from hot exhaust manifolds and contaminated airflow so the engine computer receives cleaner, cooler, and more reliable data—helpful after prolonged towing, heavy loads, or when factory sensor location creates heat-induced errors.

How does this spacer kit improve sensor accuracy?

By physically distancing the MAP/IAT sensor from high-temperature zones near the turbo and exhaust manifold, the spacer reduces thermal influence and oil/soot contamination that distort pressure and temperature readings. Cleaner signals mean fewer false diagnostic trouble codes and more consistent engine behavior under load.

• Positive displacement using a heat-resistant aluminum spacer
• Reduces radiant and conductive heat transfer to the sensor
• Prevents oil and particulate buildup on the sensor inlet
• Restores clearer pressure/temperature signals to the ECU

Will this fit my truck and replace the OEM part number?

The kit is engineered specifically for 2017–2024 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L L5P Duramax. It is a direct replacement for factory MAP sensor part numbers 12681993 and 12707766, fitting OEM mounting points and using stock connectors.

• Compatible models: 2017–2024 Silverado/Sierra 2500HD & 3500HD
• Engine: 6.6L V8 L5P Duramax diesel
• Replaces part numbers 12681993 and 12707766
• Uses original OEM electrical connector—no cutting or splicing

How difficult is installation and will I need extra tools or tuning?

Installation is designed to be simple and fast: remove the factory sensor, mount the spacer, and attach the replacement sensor. The assembly uses the OEM electrical plug, so no wiring changes or ECU programming are required—most installations take about three minutes with basic hand tools.

• Typical install time: ~3 minutes
• No wiring modifications or ECU recalibration needed
• Works with stock mounting hardware and connectors
• Standard wrench set or socket set required

What materials and protections does the kit provide?

The spacer is made from thermally robust material and designed to resist heat soak while shielding the sensor from exhaust particulates and oil contamination. The replacement sensor is calibrated to OEM specifications for pressure and temperature sensing so it communicates cleanly with the engine control system.

• Heat-resistant spacer construction minimizes thermal transfer
• Sensor calibrated for MAP/IAT duties matching factory signal range
• Design redirects contaminated airflow away from sensor port
• Durable finish resists corrosion and long-term exposure

Who is this for: the Rendrox Silver Spacer Kit + MAP/IAT sensor is intended for owners of 2017–2024 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L L5P Duramax who need a practical, bolt-on solution to heat-related sensor errors or contamination issues. It's ideal for fleet vehicles, heavy haulers, and enthusiasts who tow frequently or run their trucks in demanding conditions and want a reliable, OEM-compatible replacement without wiring hassles.