97-98 BMW 528i/540i Front Left/Right Sensor
97-98 BMW 528i/540i Front Left/Right Sensor
OEM replacement oxygen sensors for your BMW's fuel management and emissions system. These direct-fit units restore proper air-fuel ratio readings and engine performance. Built to factory specifications for reliable operation in high-heat engine bay conditions.
Key Features
- Front position sensors - Critical for catalytic converter efficiency and fuel trim control
- Direct OEM fit - No modification or adapter required; mounts at factory sensor bungs
- Left and right pair - Covers both sensors for complete bank coverage
Specs
- Configuration: Pair (left and right)
- Condition: New
Whats Included
- Left oxygen sensor
- Right oxygen sensor
Frequently Asked Questions
Do I need any special tools or adapters to install these?
These mount directly at the factory sensor bungs with no adapters needed. You'll want an oxygen sensor socket (a cheap, standard tool) and basic hand tools. Disconnect the battery before you start and let the exhaust cool completely—sensor bungs sit in hot territory.
Will these trigger a check engine light?
Not if they're installed correctly and functioning properly. If your light was on before install due to a bad sensor, it should clear once the new sensors complete their readiness cycle—typically after 50–100 miles of normal driving.
Can I install just one sensor, or do I need both?
You can replace one at a time if needed, but both sensors work together to balance fuel trim across both banks. Replacing the pair ensures consistent engine performance and prevents uneven air-fuel ratios between cylinders.
Ships within 1-2 business days.
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97-98 BMW 528i/540i Front Left/Right Sensor
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.