If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Included warranty:
For warranty coverage information, please see our
Warranty Policy.
Monitors exhaust gases and reduces pollutants for a cleaner environment.
Coated in with electrodes made of a gas-permeable platinum layer.
Measures oxygen levels to fine-tune air-fuel mixture, improving fuel economy and saving costs.
Coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
Determines the oxygen content of the exhaust gas, monitoring the air fuel ratio for combustion efficiency.
Some of the interchangeable part numbers are:
Customer Video Reviews
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Fitment Table
This product is compatible with these vehicles:
Year
Make
Model
Notes
Position
1992
BMW
525i
2.5L
Inline engine
6 cylinders
3.31" bore
2.95" stroke
Upstream
1991
BMW
525i
2.5L
Inline engine
6 cylinders
3.31" bore
2.95" stroke
Upstream
1990
BMW
525i
2.5L
Inline engine
6 cylinders
3.31" bore
2.95" stroke
Upstream
1989
BMW
525i
2.5L
Inline engine
6 cylinders
3.31" bore
2.95" stroke
Upstream
See what other customers say:
Customer Reviews
Overall rating: 4.8 / 5 from 703 reviews.
You can’t beat their prices, nor can you beat the quality of the parts. The fit and finish was just like OEM. This is the second time I’ve gotten brakes from these guys and each time has been an absolute win. Thank you parts Pioneer.
This my second time buying from Partspionner.ca great parts quality parts fast shipping to your door no need to wait on parts counter for minutes save gas ;)
I had an excellent experience ordering from Parts Pioneer, my order was placed and shipped quickly and received. Excellent customer service, I will definitely use them again when needed and let many of my friends know about Part's Pioneer
The site was very easy to use. When I emailed with a question the response came quickly. I appreciated that you verified that the parts would fit my vehicle. I will use the site again.