BMW Engine Parts for BMW 3 Series F34 (2014+)

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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BMW B58 3.0L Oxygen Sensor - Downstream
BMW B58 3.0L Oxygen Sensor - Downstream
Walker - Corporate Logo
T#:5229442
Part#: 11788611294
Ships in 2 Business Days
$ 159.99

This product was last offered at the strikethrough price on
04-10-2026

$ 138.99 USD
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$ 138.99 USD
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BMW B58 3.0L Oxygen Sensor - Downstream is essential for maintaining optimal engine performance and fuel efficiency. Turner Motorsport offers this high-quality replacement sensor designed to precisely measure exhaust oxygen levels, allowing the vehicle's computer to accurately adjust the air/fuel ratio and monitor emissions. A degraded oxygen sensor can lead to decreased engine performance, reduced fuel efficiency, and increased harmful emissions, potentially triggering the Check Engine Light and causing a failure in emissions testing.

  • Ensures Optimal Engine Performance: Accurately measures exhaust oxygen levels for precise air/fuel ratio adjustments.
  • Improves Fuel Efficiency: Helps maintain proper fuel mixture, reducing fuel consumption.
  • Reduces Harmful Emissions: Keeps emissions in check, ensuring compliance with environmental standards.
  • Prevents Check Engine Light Activation: Helps avoid unnecessary warning lights and potential emissions test failures.
  • Quality Replacement: High-grade sensor designed specifically for the BMW B58 3.0L engine.
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Meyle Mechanical Accessory Belt Tensioner - BMW B46/48 B58
Meyle Mechanical Accessory Belt Tensioner - BMW B46/48 B58
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5108968
Part#: 11288580360
Ships on Oct 2, 2026
$ 95.99 USD
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$ 95.99 USD
Free Shipping
Add to Wish List
Accessory belt tensioners provide tension to the belt drive system, ensuring the belt is able to properly turn engine accessories without slipping. If your tensioner has failed, replace it with a brand-new unit to ensure proper water pump and alternator functionality.
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