--- product_id: 1250688 title: "Delphi AF10043 Mass Air Flow Sensor" brand: "delphi" price: "£102.69" currency: GBP in_stock: true reviews_count: 13 category: "Delphi" url: https://www.desertcart.co.uk/products/1250688-delphi-af10043-mass-air-flow-sensor store_origin: GB region: United Kingdom --- # 12V max supply voltage ±2% measurement accuracy Flange mount for perfect fit Delphi AF10043 Mass Air Flow Sensor **Brand:** delphi **Price:** £102.69 **Availability:** ✅ In Stock ## Summary > 🚗 Feel the power of precision airflow—drive smarter, not harder! ## Quick Answers - **What is this?** Delphi AF10043 Mass Air Flow Sensor by delphi - **How much does it cost?** £102.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/1250688-delphi-af10043-mass-air-flow-sensor) ## Best For - delphi enthusiasts ## Why This Product - Trusted delphi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fuel Efficiency Boost:** Accurate data helps improve mileage and reduce emissions - • **OEM-Grade Reliability:** Trusted Delphi quality since the 1970s for consistent durability - • **Plug & Play Installation:** Direct fit, no relearn needed—get back on the road fast - • **Engine Smoothness Restored:** Eliminates rough idling and hesitation for seamless driving - • **Precision Airflow Measurement:** Ensures optimal air-fuel ratio for peak engine performance ## Overview The Delphi AF10043 Mass Air Flow Sensor is a vehicle-specific, flange-mounted sensor delivering ±2% accuracy in measuring engine air intake. Operating at 12 volts, it provides reliable, OEM-quality performance that restores engine smoothness, improves throttle response, and supports better fuel efficiency. Trusted by professionals and backed by decades of Delphi expertise, this sensor is a plug-and-play upgrade that eliminates rough idling and engine hesitation. ## Description More commonly known as MAF sensor or air meter, the mass airflow sensor has one very important job; measuring the amount of air entering the engine for an optimal air-fuel ratio. Without this information, the ECU will not be able to accurately control fuel injection, resulting in an engine that will either idle roughly, or worst case, not at all. But don’t worry! We’ve been producing OE MAF sensors since the 1970s. Review: Fixed My Rough Idle Right Away – Plug and Play - I replaced the MAF sensor on my vehicle after dealing with a rough idle and hesitation that cleaning the old sensor just wasn’t fixing anymore. I went with the Delphi AF10043 since Delphi is an OEM supplier, and I’m glad I did. Install was straightforward. Unplug the connector, swap the sensor, and that was it. No relearn procedure needed in my case and the check engine light cleared immediately after a short drive. The difference was noticeable right away. Idle smoothed out, throttle response felt normal again, and the hesitation on acceleration is gone. Fuel mileage even seems a little better, though it’s still early to say for sure. Build quality looks solid and matches the original sensor that came out. Fit was exact and the connector snapped in tight with no play. It didn’t feel like a cheap aftermarket part, which was important to me since MAF sensors can be hit or miss. I’ve had it installed for a few weeks now with no issues, no warning lights, and no weird drivability problems. If your symptoms point to a failing MAF, this is a solid replacement and cheaper than dealer pricing. Wouldn’t hesitate to buy it again. Review: This was the fix for many engine problems - I was having so many problems with engine misfire and engine lights. Truck was stalling out and barely running. This part solved many issues. I decided to buy the Delco brand even though it was much more expensive. Im glad I got this part changed. This made a great difference in the performance of my engine. ## Features - Fit type: Vehicle Specific ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000CGFHBY | | Best Sellers Rank | #17,305 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Mass Air Flow Sensors | | Brand | Delphi | | Brand Name | Delphi | | Customer Reviews | 4.5 out of 5 stars 1,860 Reviews | | Global Trade Identification Number | 00689604153185 | | Included Components | Mass Airflow Sensor | | Item Dimensions | 5 x 4 x 6.5 inches | | Item Type Name | Mass Air Flow Sensor | | Item Weight | 0.01 Ounces | | Item dimensions L x W x H | 5 x 4 x 6.5 inches | | Manufacturer | Delphi | | Material | Metal, Plastic | | Material Type | Metal, Plastic | | Maximum Supply Voltage | 12 Volts | | Measurement Accuracy | ±2% | | Model | AF10043 | | Mounting Type | Flange Mount | | Output Type | Analog, Digital (Push Button) | | Part Number | AF10043 | | Smart Home Compatibility | Not Smart Home Compatible | | Specific Uses For Product | automotive air-fuel ratio measurement, engine performance monitoring | | Style | Modern | | Style Name | Modern | | UPC | 689604153185 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 392 Degrees Fahrenheit | | Warranty Description | Delphi warrants the products will be free of defects in materials andworkmanship. Delphi will, as its sole obligation under this limited warranty,replace any non-conforming product. Delphi is not responsible for anyincidental or consequential costs (including labor) to remove and install aproduct or to restore the vehicle to its proper operating condition. Inaddition, under no circumstances will D… | ## Product Details - **Brand:** Delphi - **Item Weight:** 0.01 Ounces - **Item dimensions L x W x H:** 5 x 4 x 6.5 inches - **Material:** Metal, Plastic - **Style:** Modern ## Images ![Delphi AF10043 Mass Air Flow Sensor - Image 1](https://m.media-amazon.com/images/I/61IkkR8gihL.jpg) ## Questions & Answers **Q: does this fit a k1500 gmc? year 99** A: Compatibility chart says yes. Looks to be first year this model was used. From list -- 1999 GMC Sierra 1500 All- sub models All- engines Actual OE Part **Q: why can't this item be shipped to me** A: Same problem add to cart but try different addresses in California says cannot ship to the address O_o **Q: Does this have a temp sensor as described in the other acdelco 19330121 gm original equipment mass air flow sensor with intake air temperature sensor?** A: No it does not. This is only the mass air flow sensor. **Q: The search and picture represent the part number of 25168491, but the number on the part received is 15904068, are these different parts?** A: Should be the same as they are both a af10043 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed My Rough Idle Right Away – Plug and Play *by D***N on January 9, 2026* I replaced the MAF sensor on my vehicle after dealing with a rough idle and hesitation that cleaning the old sensor just wasn’t fixing anymore. I went with the Delphi AF10043 since Delphi is an OEM supplier, and I’m glad I did. Install was straightforward. Unplug the connector, swap the sensor, and that was it. No relearn procedure needed in my case and the check engine light cleared immediately after a short drive. The difference was noticeable right away. Idle smoothed out, throttle response felt normal again, and the hesitation on acceleration is gone. Fuel mileage even seems a little better, though it’s still early to say for sure. Build quality looks solid and matches the original sensor that came out. Fit was exact and the connector snapped in tight with no play. It didn’t feel like a cheap aftermarket part, which was important to me since MAF sensors can be hit or miss. I’ve had it installed for a few weeks now with no issues, no warning lights, and no weird drivability problems. If your symptoms point to a failing MAF, this is a solid replacement and cheaper than dealer pricing. Wouldn’t hesitate to buy it again. ### ⭐⭐⭐⭐⭐ This was the fix for many engine problems *by O***9 on April 26, 2026* I was having so many problems with engine misfire and engine lights. Truck was stalling out and barely running. This part solved many issues. I decided to buy the Delco brand even though it was much more expensive. Im glad I got this part changed. This made a great difference in the performance of my engine. ### ⭐⭐⭐⭐⭐ Great Product and Value. *by A***R on February 21, 2016* Item arrived very quickly and in proper packaging. Despite it not being listed as fitting my 2004 Avalanche Z71, the part number did cover the replacement of the part number on my truck. I was getting P0101 MAF sensor circuit failure, P0171 lean condition on bank one, and P0172 lean condition bank two. I first ended up changing out the intake manifold gasket to eliminate that possibility since it is a known issue with these trucks, and cause the codes I was getting. If your intake gasket has a vacuum leak, your vehicle is getting more air than it thinks it is, causing the ECU to adjust fuel trim levels and resulting in the lean codes. It also will shoot the P0101 MAF code because the computer is reading more air coming in than what the maf is sensing so it triggers the code P0101 meaning that the readings from the maf were out of range for a period of time, usually four seconds, though there are other time ranges as well. Changing the intake gasket only got rid of my P0172 lean bank two code. So I ordered this AF10043 after seeing that the part #'s actually crossed. It took all of five minutes to change out. All you need to change these are an 8mm driver or socket, loosen the large hose clamps that attach the intake tube to the throttle body connection, the intake tube to maf connection, and the maf to air box connection. Unplug the maf sensor wire by simply pressing the clip and pulling away from the maf. If you have the double stage clip, there is a small shielding clip that slides over the tab of the maf so it wont accidentally get disconnected. To get the protecting clip off take a small flat head or pick ( I used a transmission line pick tool), get under each side of the tab and it pulls straight up, the clip will actually slide completely off exposing the tab to unhook the maf sensor. All of my CEL codes are now gone thanks to this product. I have verified my maf readings with my Bluetooth obd-II dongle in real time, and all are in proper ranges. I would recommend this product to anyone needing a new maf and I would buy again if I needed to. Thanks, ## Frequently Bought Together - Delphi AF10043 Mass Air Flow Sensor - ACDelco GM Original Equipment A3181C (22845992) Air Filter - ACDelco GM Original Equipment PF46E Engine Oil Filter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/1250688-delphi-af10043-mass-air-flow-sensor](https://www.desertcart.co.uk/products/1250688-delphi-af10043-mass-air-flow-sensor) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-23*