1997-1998 BMW 528i 540i Rear Left/Right Sensor
1997–1998 BMW 528i 540i Rear Left/Right Sensor
Direct-fit oxygen sensor pair for late-90s 5-Series, ready to bolt into factory locations. These sensors monitor exhaust gas composition to keep your engine management dialed in. OEM replacement spec for reliable emissions control and fuel efficiency.
Key Features
- Direct factory fitment – Mounts to OEM sensor bungs with zero modification required
- Left and right sensors included – Both rear locations covered in one purchase
- Sealed connector design – Weatherproof contact prevents corrosion and electrical issues
Specs
- Oxygen sensor pair (left and right)
- Factory connector configuration
- OEM replacement specification
Whats Included
- Left rear oxygen sensor
- Right rear oxygen sensor
Frequently Asked Questions
Do these sensors come with the wiring harness or connectors?
They arrive with factory connectors ready to plug into your car's harness. No wiring work needed — just mate them to the existing plugs.
Can I install these without special tools?
You'll need an oxygen sensor socket (cheap, widely available) and a ratchet. The sensors unscrew from the exhaust manifold by hand once heated slightly — no fabrication or drilling involved.
Will these throw a check engine light if the old sensors are still in the car?
Yes. Remove the old sensors completely before installing these. Leaving old hardware in place triggers fault codes and defeats the purpose of the replacement.
Ships within 1-2 business days.
100% Genuine Parts
Fitment Guaranteed
1997-1998 BMW 528i 540i Rear Left/Right Sensor
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Fast Shipping
1-2 days processing
4-5 days delivery -
Secure payment
Fast, safe, and secure payments you can trust.
-
Customer Support
Count on our 24/7 support -
here whenever you need us! -
Contact Us
Leave us a message at: +17034100852 or email us at: sales@turbotechperformance.com
Premium Parts
Fitment Guaranteed
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.