Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Please, add your first item to the wishlist

Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Please, add your first item to the wishlist

Select vehicle to confirm fitment

Oxygen Sensor (Downstream)

PART#: 234-4340
Denso

$86.89

In stock

Interchanges
BrandPart #
MazdaLFG218861A9U
MazdaLFG218861B9U
Bosch15786
DelphiES20422
Walker Products250-24725 / 25024725
NTK24698
Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
2015MazdaMX-5 MiataClub2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2015MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2015MazdaMX-5 Miata25th Anniversary Edition2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2015MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2014MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2014MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2014MazdaMX-5 MiataClub2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2013MazdaMX-5 MiataClub2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2013MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2013MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2012MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2012MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2012MazdaMX-5 MiataSpecial Edition2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2012MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2011MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2011MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2011MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2011MazdaMX-5 MiataSpecial Edition2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2010MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2010MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2010MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2009MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2009MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2009MazdaMX-5 MiataSV2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2009MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2008MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2008MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2008MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2008MazdaMX-5 MiataSV2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2007MazdaMX-5 MiataSV2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2007MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2007MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2007MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2006MazdaMX-5 MiataSport2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2006MazdaMX-5 MiataClub Spec2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2006MazdaMX-5 MiataTouring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2006MazdaMX-5 MiataGrand Touring2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
2006MazdaMX-5 MiataBase2.0L4GASDownstreamDENSO is the O.E. Manufacturer / Oxygen Sensor
Product info

The Denso Oxygen Sensor part number 234-4340 is a high-quality replacement part compatible with Mazda vehicles. This sensor is also compatible with other part numbers LFG218861A9U and LFG218861B9U.

The Denso Oxygen Sensor plays an important role in your vehicle’s engine management system. This sensor measures the oxygen levels in your vehicle’s exhaust gases and sends the data to the engine control unit. The engine control unit then adjusts the air/fuel mixture to ensure optimal engine performance.

The Denso Oxygen Sensor part number 234-4340 is engineered to meet or exceed OEM specifications. This ensures proper fitment and reliable performance. The sensor is made using high-quality materials that are built to last.

The Denso Oxygen Sensor part number 234-4340 is essential for maintaining optimal engine performance. A faulty oxygen sensor can result in decreased fuel efficiency, higher emissions, and poor engine performance. Replacing your worn out or faulty oxygen sensor with the Denso Oxygen Sensor part number 234-4340 will help restore your vehicle’s performance and improve fuel efficiency.

Overall, the Denso Oxygen Sensor part number 234-4340 is a top-quality replacement part that is designed to meet or exceed OEM specifications. Its reliability, durability, and ability to improve engine performance make it an ideal choice for Mazda vehicle owners.

About Denso

Denso has always been on the cutting edge of car technology, giving drivers better products that are more durable and efficient than anything else on the market.

Alternators are one of Denso's best-known products. Denso alternators are precision-engineered and built to last so that your car's electrical system stays in good shape. If you're going in the city or on rough terrain, you can count on Denso alternators to always give you power and dependability.

In addition to alternators, we also offer Denso radiators. The cooling system in your car is very important for keeping the engine at the right temperature. Denso radiators are carefully designed to make sure they get rid of heat quickly. With Denso radiators, you can drive with trust, knowing that even in the worst conditions, your engine won't get too hot.

Denso starter motors are the best when it comes to getting your car going. Denso starter motors are made to provide reliable ignition in all kinds of weather, and they always make starting easy and smooth. Denso starting motors will get you where you need to go, whether you're taking a cross-country road trip or just running errands in town.

We're happy to offer a huge range of Denso products at prices that can't be beat at Newparts.com. It's easier than ever to find the right Denso generator, radiator, or starter motor for your car thanks to our large selection and simple-to-use website. Also, we offer fast shipping choices so you can get back on the road quickly.

Denso parts are known for being of high quality and dependability. Shop at Newparts.com today to see why drivers trust Denso for all their automotive needs. You can also place your order via phone by calling us at 855-505-2886.

Specifications
Connector GenderFemale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length17.40
Warranty
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!
Delivery & Returns

Delivery Info

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Free shipping Icon

FREE SHIPPING

Available on all kits, sets & Bison performance products