--- product_id: 2282567 title: "Denso Oxygen (O2) Sensor - 234-4162 (Fits Select Years of Toyota: 4Runner, Pickup, Sequoia, T100, Tacoma, and Tundra Vehicles)" brand: "denso" price: "€ 72.45" currency: EUR in_stock: true reviews_count: 13 category: "Denso" url: https://www.desertcart.ie/products/2282567-denso-oxygen-o2-sensor-234-4162-fits-select-years-toyota store_origin: IE region: Ireland --- # Fast zirconia sensor response Precision OE fit Corrosion-resistant stainless steel Denso Oxygen (O2) Sensor - 234-4162 (Fits Select Years of Toyota: 4Runner, Pickup, Sequoia, T100, Tacoma, and Tundra Vehicles) **Brand:** denso **Price:** € 72.45 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your ride with precision sensing — because your Toyota deserves the best! ## Quick Answers - **What is this?** Denso Oxygen (O2) Sensor - 234-4162 (Fits Select Years of Toyota: 4Runner, Pickup, Sequoia, T100, Tacoma, and Tundra Vehicles) by denso - **How much does it cost?** € 72.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/2282567-denso-oxygen-o2-sensor-234-4162-fits-select-years-toyota) ## Best For - denso enthusiasts ## Why This Product - Trusted denso brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Exact OE Replacement Fit:** Engineered for a seamless first-time install on select Toyota models (1994-2004). - • **Durable Stainless Steel Build:** Corrosion-resistant housing ensures longevity even in harsh engine environments. - • **Contaminant-Blocking PTFE Filter:** Protects sensor from efficiency-robbing silicone and lead poisoning for sustained performance. - • **Advanced Zirconia Sensing Element:** Delivers rapid and accurate oxygen level readings for optimized fuel efficiency. - • **Boost Your Engine’s Torque & MPG:** Restore your Toyota’s smooth power delivery and fuel economy with a trusted Denso upgrade. ## Overview The Denso 234-4162 Oxygen Sensor is a high-quality, corrosion-resistant replacement part designed for select Toyota vehicles from 1994 to 2004. Featuring a fast-response zirconia element and a PTFE filter to block contaminants, it ensures accurate oxygen level readings that optimize engine performance and fuel efficiency. Manufactured to strict OE standards, it guarantees a perfect fit and long-lasting durability, making it the smart choice to restore your vehicle’s torque and smooth operation at a fraction of dealership prices. ## Description Denso part number 234-4162 is a replacement oxygen (O2) sensor for 1996-2000 Toyota 4Runner, 1994-1995 Toyota Pickup, 2001-2004 Toyota Sequoia, 1995-1998 Toyota T100, 1995-2000 Toyota Tacoma, and 2000-2004 Toyota Tundra vehicles.Denso Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision built for exact replacement, and a first time fit. This innovative line features Denso's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. Denso gives you the right part and the right fit, the first time. Review: Original Toyota Part for 1/3 Price (2002 Tundra 4.7L 4WD) - Edit 11/20/23: MAF still working nicely. Yes on the Hitachi and yes on the Denso O2 Sensors. Dew it Grasshopper!!! Had cleaned the original MAF Sensor a few times over the years, but still couldn’t remove the small amount of black carbon on a few of the delicate inner sections. Stealership wanted $175 for new one. Sourced the manufacturer to Hitachi by looking at the snap on cover of the original MAF on the engine. Sourced it back to this store along with New Denso o2 Sensors. Ordered and installed the MAF 6 months ago along with 4 New Denso o2 Sensors. Engine is much torquier! MPG is slightly better now due to the combination of MAF and o2 newness. Tested the old MAF per Toyota FSM Spec and it was out of spec. Same with the old o2’s. After almost 20 years guess it was time? Truck was purring nicely before swap (even being out of spec), but man that awesome torque has come back that I remember when she was new. Engine is even smoother now. The 4.7L rules. Side notes: Looks like Hitachi grinds off the Toyota stamping for branding issues. Sensor doesn’t look used/remanufactured as stated in another comment above. Looks like the exact part as the original. No worries because the original cap pops off and snaps over the New Sensor. Also the cost is $55 vs $170. Made in USA! Denso is Made in USA quality. Comes with Copper Anti-Seize. Suggest buying Lisle Thread Chaser to clean up the threads on the front o2 sensors. Also, a sensor socket is good to have for swapping out the fronts. May want to purchase some new nuts (4) for the rear sensors as the old ones are most likely rusted/deteriorated. If one of your o2’s is bad, suggest replacing all 4 at the same time and be done with it. Restore that sweet torque. Review: If you’re concerned about ordering OEM on desertcart - Don’t. Came in. No damage. Fit great. Works like a charm. ## Features - Denso narrow-band Oxygen (O2) Sensor with 4 wire 10.63 inch long wiring harness - Part Number: 234-4162 - Application: Toyota: (1996-2000 4Runner, 1994-1995 Pickup, 2001-2004 Sequoia, 1995-1998 T100, 1995-2000 Tacoma, 2000-2004 Tundra) - Parts Interchange: 8946539835, 8946509320, 8946539865, 8946509020, 8946509190, 8946509210, 894650C200, 8946509140, 8946509180, 8946539735 - Corrosion-resistant stainless steel construction - PTFE filter blocks efficiency-robbing contaminants - Refined zirconia element improves sensor response - Package Quantity: 1 - Item Dimensions: 5.75 x 2.19 x 1.88 Inches - Item Weight: 0.25 Pounds ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000C5UFK8 | | Best Sellers Rank | #54,567 in Automotive ( See Top 100 in Automotive ) #120 in Automotive Replacement Oxygen Sensors | | Brand | Denso | | Customer Reviews | 4.6 4.6 out of 5 stars (936) | | Date First Available | December 15, 2007 | | Exterior | Machined | | Global Trade Identification Number | 00042511141629 | | Is Discontinued By Manufacturer | No | | Item Weight | 4 ounces | | Item dimensions L x W x H | 5.75 x 2.19 x 1.88 inches | | Item model number | 234-4162 | | Manufacturer | Denso | | Manufacturer Part Number | 234-4162 | | Material | Stainless Steel, Zirconium | | Measurement Accuracy | Meets or exceeds OE standards | | Model | Harness | | Mounting Type | Thread-In | | OEM Part Number | 234-4162 | | Output Type | Push-Pull | | Product Dimensions | 5.75 x 2.19 x 1.88 inches | | Sensing Distance | 10 Centimeters | | Specific Uses For Product | Replacement Part | | Style | Replacement Part | | UPC | 042511141629 | | Upper Temperature Rating | 800 Degrees Celsius | ## Product Details - **Brand:** Denso - **Item Weight:** 4 ounces - **Item dimensions L x W x H:** 5.75 x 2.19 x 1.88 inches - **Material:** Stainless Steel, Zirconium - **Style:** Replacement Part ## Images ![Denso Oxygen (O2) Sensor - 234-4162 (Fits Select Years of Toyota: 4Runner, Pickup, Sequoia, T100, Tacoma, and Tundra Vehicles) - Image 1](https://m.media-amazon.com/images/I/51HM+1uw4GL.jpg) ## Questions & Answers **Q: Does this part fit my 1996 Camry le upstream?** A: Go to Denso web site. http://densoautoparts.com/ **Q: I have a 2000 toyota 4runner, are both the o2 sensors the same? if so i'll just buy two of theses for my truck** A: For a 2000 4Runner LIMITED 6-cylinder...non-california, automatic, 4WD....TWO of these will work for both upstream and downstream. CONFIRMED. just installed both today...no need for longer wiring harness. **Q: How do you know if you need to change the upstream or downstream? i have a 2003 toyota sequoia limited 4 wheel drive. thank you.** A: Save yourself the headache and change both at the same time. Codes will drive you crazy! **Q: See i have a 2000 sr5 4x4 4runner and i need both 02 sensor part # please also how many do I need** A: I have a Tundra and have replaced all sensors (4) in my vehicle. The Tundra has a devoted dual exhaust & 2 catalytic converters, one for each side (Driver's / Passanger) of the engine. The exhaust then either combines into a single exhaust pipe seen at the back of the vehicle or maintains separation (devoted), in which case there are 2 exhaust pipes at the rear of vehicle. I'm not sure what configuration your 4runner has, or has been modified to, but can tell you this. What O2 sensors there are go on the exhaust before and after the catalytic converter/s and so a quick inspection under the vehicle should tell you whether you need 2 or 4 sensors. The UPSTREAM sensors (before the catalytic converter/s) on my vehicle bolt into the exhaust by threads on the the sensor itself. The DOWNSTREAM sensors have a double holed mount that 2 bolts from the exhaust pass through and are tightened into place with hex nuts. You will need a slotted socket in order to tighten the UPSTREAM sensor on without to much of a problem. It's not worth trying to do it any other way. Use caution to not to slow turn & break the sensor or mounting bolts when taking them off. I would recommend hammer tapping as opposed to a steady torque force to snap the frozen nuts free for turning. Once free, but still extremely tight, penetrating oil will be able to be sucked up into the threads for further loosening, but until the nuts or sensor has snapped free for turning, penetrating oil won't be of much assistance. Good Luck ## Customer Reviews ### ⭐⭐⭐⭐⭐ Original Toyota Part for 1/3 Price (2002 Tundra 4.7L 4WD) *by H***R on October 18, 2020* Edit 11/20/23: MAF still working nicely. Yes on the Hitachi and yes on the Denso O2 Sensors. Dew it Grasshopper!!! Had cleaned the original MAF Sensor a few times over the years, but still couldn’t remove the small amount of black carbon on a few of the delicate inner sections. Stealership wanted $175 for new one. Sourced the manufacturer to Hitachi by looking at the snap on cover of the original MAF on the engine. Sourced it back to this store along with New Denso o2 Sensors. Ordered and installed the MAF 6 months ago along with 4 New Denso o2 Sensors. Engine is much torquier! MPG is slightly better now due to the combination of MAF and o2 newness. Tested the old MAF per Toyota FSM Spec and it was out of spec. Same with the old o2’s. After almost 20 years guess it was time? Truck was purring nicely before swap (even being out of spec), but man that awesome torque has come back that I remember when she was new. Engine is even smoother now. The 4.7L rules. Side notes: Looks like Hitachi grinds off the Toyota stamping for branding issues. Sensor doesn’t look used/remanufactured as stated in another comment above. Looks like the exact part as the original. No worries because the original cap pops off and snaps over the New Sensor. Also the cost is $55 vs $170. Made in USA! Denso is Made in USA quality. Comes with Copper Anti-Seize. Suggest buying Lisle Thread Chaser to clean up the threads on the front o2 sensors. Also, a sensor socket is good to have for swapping out the fronts. May want to purchase some new nuts (4) for the rear sensors as the old ones are most likely rusted/deteriorated. If one of your o2’s is bad, suggest replacing all 4 at the same time and be done with it. Restore that sweet torque. ### ⭐⭐⭐⭐⭐ If you’re concerned about ordering OEM on Amazon *by M***L on August 14, 2025* Don’t. Came in. No damage. Fit great. Works like a charm. ### ⭐⭐⭐⭐⭐ Buy this product! *by N***O on December 11, 2025* Hey, this is an awesome product. This is the real deal. I am super super satisfied. I drove about 30 minutes with my new oxygen sensor and guess what my catalytic converter on my O2 sensor said it was ready. Hallelujah the previous owner of my car put the wrong upstream sensor. I received the package today switch the part out went on my 30 minute drive cycle And boom cat ready. Thank you so much for this product. I love you. --- ## 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.ie/products/2282567-denso-oxygen-o2-sensor-234-4162-fits-select-years-toyota](https://www.desertcart.ie/products/2282567-denso-oxygen-o2-sensor-234-4162-fits-select-years-toyota) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-04-23*