If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Included warranty:
For warranty coverage information, please see our
Warranty Policy.
Walker Products Exhaust Backpressure Sensors are OE Replacement components designed to monitor pressure within the exhaust system and provide critical data to the engine control module (ECM). This sensor plays a key role in managing Exhaust Gas Recirculation (EGR) function, turbocharger performance, diesel aftertreatment, and overall emissions control. The ECM uses this data to adjust boost levels, regulate EGR flow, and determine conditions for Diesel Particulate Filter (DPF) regeneration. A failed or drifting exhaust backpressure sensor can lead to check engine lights, EGR malfunction, loss of power, or increased emissions. Walker sensors are manufactured to meet or exceed OE specifications for pressure range, signal accuracy, electrical compatibility, and environmental durability. Each sensor is built with heat-resistant housings, high-quality diaphragms, and sealed electronics to endure prolonged exposure to soot, vibration, and thermal cycling in both gasoline and diesel applications. Designed for an exact OE fit, Walker Exhaust Backpressure Sensors install directly into the original mounting location and connect to the factory harness with no modifications required. Whether replacing a failed unit or addressing emissions-related drivability concerns, these sensors help restore system accuracy, protect engine components, and ensure compliance with emissions regulations.
Characteristics include:
Exact OE Fit: Designed for 100% compatibility with factory mounting locations and connectors—no wiring or modification required.
OE Replacement Calibration: Matches factory pressure range, voltage output, and signal response for seamless ECU integration.
Monitors Exhaust System Pressure: Provides critical pressure data to the ECU for EGR operation, turbo management, and emissions control.
Restores Emissions & Turbo Efficiency: Helps resolve drivability issues, fault codes, and performance loss caused by inaccurate pressure readings.
Engineered for Harsh Environments: Built to withstand high exhaust heat, soot, and vibration for long-term reliability in diesel and gasoline systems.
Some of the interchangeable part numbers are:
904-7520 | 1850351C1
Customer Video Reviews
Watch genuine customer videos showing their upgrades and honest results of similar products
Excellent quality and fast shipping!
I’m very happy with my purchase from Pioneer Parts. The brake rotors arrived quickly, were well packaged, and the quality looks excellent. The fit and finish are great, and everything matched the description for VW Jetta 2013 TDI,Great service, fast delivery, and good-quality parts. I would definitely order from Pioneer Parts again!
Highly recommended! 🚗🔧⭐⭐⭐⭐⭐
The rotors and pads were perfect. A little disappointed the the front pads didn't come with new hardware, but the rear ones did. Would have been 5 star had the front hardware been included. Delivery was fast, and parts were exact.
Looks and feels great once installed. Sliders were loose but the pads were so tight in them even with lube I had to push/work them in. So that being said they did not slide. I would have had to grind down the tabs, which I didn't want to do. Eventually I made them fit. Wear gloves with these semi metallic pads as the will leave slivers in your skin. A great product so far, no rattles or stickiness....recommended for volts and other like gm vehicles.
Quality product from a quality supplier! I have ordered plenty of parts online in my life. This is the first time ever I had an actual person connect with me and confirm that the parts I was ordering were indeed the correct ones I needed for my vehicle. Was actually very impressed that they didn't want to ship until it was all verified to be correct, top notch! Will definitely be ordering through them for any of my future parts needs!
After a couple months these "coated" rotors developed so much rust in the drilled holes and slots. Not really impressed with the quality but they do stop the car I guess.
The service great and the parts are also great the people contacts you if you made wrong selection of the wrong part and that's what the people need less returns and les hassle every body wins thumps up
The shipping is super fast, the rotors and pads are packaged well, the customer service is helpful, everything looks good. Parts Pioneer is doing a great job.
Parts came on time and were correct. I have the brakes installed already and they are working good. Sway bar end links not installed yet, but appear good.
I love PartsPioneer. The rear-wheel Positive Plus pads and Genius rotors fit perfectly on my 2019 Subaru Forester. Excellent quality at a fair price. Highly recommended.
Terrible customer service and misleading shipping information. I ordered brake calipers to be delivered to Newfoundland. When checking out it said it would arrive by Sept 3rd. When I got my tracking code it has changed to Sept 8th and said it was shipped from Alberta. I purchased these parts from an Ontario company! I had to reschedule my service appointment to the 9th. They still have not arrived so I have to purchase the calipers locally for twice the price and Parts Pioneer only offered me a 15% refund. No option to return them without having to pay the shipping myself. Unbelievable! Do not trust their shipping times if the parts are for a time sensitive repair.