--- product_id: 552024598 title: "Front and Rear Pre Post Cat O2 Lambda Sensor for B-M-W 3 5 7 Series X3 X5 E36 E38 E39 E46 E53 E60 E61 E65 E83" brand: "houyeen" price: "£58.23" currency: GBP in_stock: true reviews_count: 1 category: "Hou Yeen" url: https://www.desertcart.co.uk/products/552024598-front-and-rear-pre-post-cat-o2-lambda-sensor-b store_origin: GB region: United Kingdom --- # 5V max supply voltage 990mm downstream sensor cable length Fits 20+ BMW models (3,5,7,X3,X5,Z series) Front and Rear Pre Post Cat O2 Lambda Sensor for B-M-W 3 5 7 Series X3 X5 E36 E38 E39 E46 E53 E60 E61 E65 E83 **Brand:** houyeen **Price:** £58.23 **Availability:** ✅ In Stock ## Summary > 🚗 Upgrade your BMW’s breath of life with precision sensing! ## Quick Answers - **What is this?** Front and Rear Pre Post Cat O2 Lambda Sensor for B-M-W 3 5 7 Series X3 X5 E36 E38 E39 E46 E53 E60 E61 E65 E83 by houyeen - **How much does it cost?** £58.23 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/552024598-front-and-rear-pre-post-cat-o2-lambda-sensor-b) ## Best For - houyeen enthusiasts ## Why This Product - Trusted houyeen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide BMW Compatibility:** Engineered to fit over 20 BMW models from 1994 to 2010, including 3, 5, 7 Series, X3, X5, and Z series. - • **Optimized Cable Lengths:** Downstream sensors feature ideal 990mm cables for hassle-free installation; upstream sensors designed compactly for tight spaces. - • **Complete Front & Rear Set:** Includes 2 front and 2 rear lambda sensors for comprehensive pre- and post-catalytic converter monitoring. - • **Precision Oxygen Monitoring:** Analog output ensures real-time, accurate exhaust gas readings for optimal engine performance. - • **Boost Fuel Efficiency & Emissions:** Maintain your BMW’s peak performance and eco-standards with precise oxygen sensing technology. ## Overview This HouYeen Front and Rear Pre Post Cat O2 Lambda Sensor set delivers precise analog oxygen concentration monitoring (1-20%) with a 5V supply, tailored for over 20 BMW models spanning 1994-2010. The kit includes 2 front and 2 rear sensors, featuring optimized cable lengths (990mm downstream) for seamless installation, ensuring your BMW’s engine runs efficiently while meeting emissions standards. ## Description Suitable for BMW 3 Series E36 318is 1996-1998, Compact E36 316i 318ti 1996-2000, Coupe E36 318is 1995-1999Suitable for BMW 3 Series E46 316i 318i 320i 323i 325i 325xi 328i 330i 330xi 1997-2005, Compact E46 325ti 2001-2004, Convertible E46 320ci 323ci 325ci 330ci 2000-2007, Coupe E46 316ci 318ci 320ci 323ci 325ci 328ci 330ci 330xi M3 1999-2006, Touring E46 318i 320i 325i 325xi 328i 330i 330xi 1999-2005Suitable for BMW 5 Series E39 520i 523i 525i 528i 530i 535i 540i M5 1995-2003, Touring E39 520i 525i 528i 530i 540i 1996-2004Suitable for BMW 5 Series E60 520i 525i 530i 2001-2010, Touring E61 525i 2004-2010 Suitable for BMW 7 Series E38 728i 735i 740i 750i 1994-2001, E65 E66 E67 730i 2003-2009Suitable for BMW 8 Series E31 840ci 850ci 1994-1999Suitable for BMW X3 E83 2.5i 3.0i xDrive 2003-2006Suitable for BMW X5 E53 3.0i 4.4i 4.6is 2000-2006Suitable for BMW Z3 Coupe E36 2.8i 3.0i 1998-2003, Roadster E36 1.9i 2.0i 2.2i 2.8i 3.0i 1996-2003Suitable for BMW Z4 Roadster E85 2.2i 2.5i 3.0i 2002-2005Suitable for BMW Z8 Roadster E52 4.9 2000-2003Box Contains: 2x Front Lambda Sensor 2x Rear Lambda Sensor Review: Cable lengths and heater circuit - These are for use on the car. Liked the two post cat downstream sensors as they are 990mm in length, just right. Disliked the two pre cat upstream sensors as they are short 450mm in length. There is no etching of manufacturing part numbers of any kind on them, nothing, completely nothing to use for reference. Also no instructions or warranty in the box, so I'm just hopeful they will last. Update: unfortunately the sensors heater circuit is causing the car's ECU to register a fault right away. The car's CEL check engine light came on within minutes, tried clearing it but came back on startup. ## Features - Suitable for BMW 3 Series E36 318is 1996-1998, Compact E36 316i 318ti 1996-2000, Coupe E36 318is 1995-1999 - Suitable for BMW 3 Series E46 316i 318i 320i 323i 325i 325xi 328i 330i 330xi 1997-2005, Compact E46 325ti 2001-2004, Convertible E46 320ci 323ci 325ci 330ci 2000-2007, Coupe E46 316ci 318ci 320ci 323ci 325ci 328ci 330ci 330xi M3 1999-2006, Touring E46 318i 320i 325i 325xi 328i 330i 330xi 1999-2005 - Suitable for BMW 5 Series E39 520i 523i 525i 528i 530i 535i 540i M5 1995-2003, Touring E39 520i 525i 528i 530i 540i 1996-2004； Suitable for BMW 5 Series E60 520i 525i 530i 2001-2010, Touring E61 525i 2004-2010 ； Suitable for BMW 7 Series E38 728i 735i 740i 750i 1994-2001, E65 E66 E67 730i 2003-2009； Suitable for BMW 8 Series E31 840ci 850ci 1994-1999； - Suitable for BMW X3 E83 2.5i 3.0i xDrive 2003-2006； Suitable for BMW X5 E53 3.0i 4.4i 4.6is 2000-2006； - Suitable for BMW Z3 Coupe E36 2.8i 3.0i 1998-2003, Roadster E36 1.9i 2.0i 2.2i 2.8i 3.0i 1996-2003； Suitable for BMW Z4 Roadster E85 2.2i 2.5i 3.0i 2002-2005； Suitable for BMW Z8 Roadster E52 4.9 2000-2003； - Box Contains: 2x Front Lambda Sensor； 2x Rear Lambda Sensor ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C9SX18X7 | | Best Sellers Rank | 119,250 in Automotive ( See Top 100 in Automotive ) 199 in Car Oxygen Sensors | | Brand | HouYeen | | Country Of Origin | China | | Customer Reviews | 3.6 out of 5 stars 2 Reviews | | Item Weight | 536 Grams | | Item weight | 536 Grams | | Manufacturer | HouYeen | | Maximum Supply Voltage | 5 Volts (DC) | | Maximum supply voltage | 5 Volts (DC) | | Measuring Range | 1-20% oxygen concentration in exhaust gases | | Measuring range | 1-20% oxygen concentration in exhaust gases | | Model Number | PrePostCatO2LambdaSensor_FrontAndRear | | Output Type | analog | | Output type | analog | | Specific Uses For Product | automotive, oxygen concentration monitoring in exhaust gases | | Style | Compact | | Style Name | Compact | ## Images ![Front and Rear Pre Post Cat O2 Lambda Sensor for B-M-W 3 5 7 Series X3 X5 E36 E38 E39 E46 E53 E60 E61 E65 E83 - Image 1](https://m.media-amazon.com/images/I/61AtV37KsoL.jpg) ## Customer Reviews ### ⭐⭐⭐ Cable lengths and heater circuit *by H***E on 26 May 2024* These are for use on the car. Liked the two post cat downstream sensors as they are 990mm in length, just right. Disliked the two pre cat upstream sensors as they are short 450mm in length. There is no etching of manufacturing part numbers of any kind on them, nothing, completely nothing to use for reference. Also no instructions or warranty in the box, so I'm just hopeful they will last. Update: unfortunately the sensors heater circuit is causing the car's ECU to register a fault right away. The car's CEL check engine light came on within minutes, tried clearing it but came back on startup. --- ## 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/552024598-front-and-rear-pre-post-cat-o2-lambda-sensor-b](https://www.desertcart.co.uk/products/552024598-front-and-rear-pre-post-cat-o2-lambda-sensor-b) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*