HiSport Throttle Accelerator Pedal Position Sensor for Infiniti/Nissan - 18919-AM810 Direct-Fit, OE-Grade Durability

The HiSport Throttle Accelerator Pedal Position Sensor (18919-AM810 / 18002AM81D) is a direct-fit replacement sensor engineered to restore accurate throttle position reading for compatible Infiniti and Nissan models.

If your vehicle is showing inconsistent idle, delayed throttle response, or dash warnings related to throttle control, replacing a faulty pedal position sensor can often resolve the issue. This HiSport unit is designed as a high-quality replacement part that matches common interchange numbers and fits a range of Infiniti and Nissan vehicles from the 2003–2009 model years. It is made from durable ABS plastic and metal components and is inspected before shipping to help ensure reliable installation and function.

Which cars will this HiSport sensor fit?

This sensor is manufactured to be compatible with several Infiniti and Nissan models within specific model years. Always compare the part numbers on your existing sensor to the interchange list before ordering to confirm compatibility.

• Compatible Infiniti models: FX35 (2003–2008), FX45 (2003–2008), G35 (2003–2008)
• Compatible Nissan model: 350Z (2003–2009)
• Interchange numbers include AM81E, 18919-AM810, 18919-6N20, and 18002AM81D
• Verify fit by matching the part number pictured or listed with your vehicle’s existing sensor

How does this replacement sensor compare to the original equipment (OE)?

The HiSport sensor is produced to meet or exceed OE standards in materials and construction, offering a close match to the original in form and function. It uses quality ABS plastic and metal contacts intended for durability and consistent electrical connectivity.

• Meets or exceeds OE material and performance standards
• Durable ABS housing and metal terminals for wear resistance
• Pre-shipment inspection to reduce defective units
• Designed for direct-fit installation where the part number matches

What should I check before ordering and installing the sensor?

Confirming the exact part number and physical connector style is the best way to ensure a correct match. If the part number on your existing sensor matches one of the listed interchange numbers, this HiSport sensor is likely to fit; otherwise consult a mechanic or parts specialist.

• Match your current sensor’s part number to AM81E, 18919-AM810, 18919-6N20, or 18002AM81D
• Compare connector pin layout and mounting points with product images
• Disconnect the battery and follow vehicle-specific service steps when installing
• Clear any diagnostic trouble codes after installation and test drive to verify operation

What after-sales support and guarantees are provided?

HiSport offers a replacement or refund policy if the part is defective or does not match the interchange list, subject to the seller’s return procedures. Keep the order information and photos of the part and vehicle to speed resolution if you need a claim.

• Guaranteed refund or replacement for qualifying issues
• Inspect units on arrival and contact the seller promptly with proof if problems exist
• Follow return instructions to ensure a smooth claim process
• Seller recommends verifying part numbers before purchase to avoid returns

Who is this for: This HiSport throttle pedal position sensor is aimed at DIY mechanics and professional technicians replacing a worn or failing throttle position sensor on compatible Infiniti FX35, FX45, G35, and Nissan 350Z models. It’s also suitable for vehicle owners who need an economical, direct-fit replacement that follows OE specifications and includes after-sales coverage if the part fails to match the stated interchange numbers.