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

Air / Fuel Ratio Sensor – Upstream Driver Side

PART#: 17278
Bosch
Interchanges
BrandPart #
BMW11 78 7 512 983 / 11787512983
Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
2005BMW545iBase4.4V8GASUpstream Left | Manual;
2005BMW645CiBase4.4V8GASUpstream Left | Manual;
2004BMW545iBase4.4V8GASUpstream Left | Manual;
2004BMW645CiBase4.4V8GASUpstream Left | Manual;
Product info

The Bosch Air/Fuel ratio sensor (part number 17278) is a reliable and high-quality replacement part specifically designed for BMW vehicles. Engineered to meet and exceed OEM specifications, this part provides accurate and precise readings to ensure optimal engine performance.

The sensor is compatible with part number 11 78 7 512 983, making it an excellent choice for BMW owners looking for a cost-effective replacement option. It is made from premium materials and comes with a durable housing that protects it from harsh weather conditions and extreme temperatures.

One of the key benefits of this sensor is that it helps to improve fuel efficiency and reduce harmful emissions. With its advanced technology and superior design, it accurately measures the air-to-fuel ratio in the engine and adjusts it accordingly to optimize combustion and reduce waste.

In addition, the Bosch Air/Fuel ratio sensor is easy to install and requires no special tools or equipment. Its plug-and-play design allows for quick and hassle-free installation, saving you time and money on labor costs.

Whether you’re a professional mechanic or a DIY enthusiast, the Bosch Air/Fuel ratio sensor is an excellent choice for BMW owners looking to maintain or improve the performance of their vehicle. With its precision engineering, superior design, and reliable performance, this part provides a cost-effective and long-lasting solution for all your air/fuel ratio sensor needs.

About Bosch

When it comes to quality and reliability in the automotive OEM parts, Bosch is a name that stands out. Bosch has established itself as a leader in producing top-notch auto parts that drivers trust worldwide.

At Newparts.com, we're proud to offer an extensive selection of Bosch auto parts to our customers. Whether you're in need of Bosch spare parts to keep your vehicle running smoothly or specific components like Bosch fuel injectors or Bosch spark plugs, you'll find what you need in our inventory.

One of the reasons why Bosch is highly regarded in the industry is their commitment to innovation and excellence. Their parts are engineered with precision and built to meet the highest standards, ensuring optimal performance and durability. From fuel injectors that deliver precise fuel delivery for enhanced engine efficiency to spark plugs that ignite the air-fuel mixture with precision timing, Bosch auto parts are designed to keep your vehicle running at its best.

What sets Newparts.com apart is our dedication to providing quality parts at affordable prices. We understand that maintaining your vehicle shouldn't break the bank, which is why we offer Bosch parts at discount prices. You can trust that you're getting great value with every purchase.

In addition to our competitively low pricing, we also prioritize customer satisfaction by offering fast shipping on all Bosch parts. We know that when your vehicle needs repairs, you want to get back on the road as quickly as possible. That's why we strive to process and ship orders fast, so you can get the parts you need when you need them.

When you choose Bosch parts from Newparts.com, you're not just getting quality components – you're getting peace of mind knowing that your vehicle is equipped with parts you can trust. Browse our selection of Bosch auto parts today and experience the difference for yourself. Call us at 855-505-2886 if you want to place your order by phone, or if you have other queries from our customer support team.

Specifications
Automotive Color / FinishSteel
Automotive Item Weight (lbs)0.279987 lb
Cases Per Pallet (ORLY)168
Connector GenderMale
Connector ShapeMale Spade
Heated (Oxygen Sensor)Yes
Hex Size (Oxygen Sensor)22 mm
Housing MaterialMetal
Length (Sealing Surface To End Of Connector)20.944893 in
Mounting TypeThreaded
Oxygen Sensor TypeWide band
Sensor TypeHeated
Thread Diameter18
Unit(s) per Car Qty (ORLY)1
Universal Or Specific FitSpecific
Wire Quantity5
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