HELLA8EH 188 705-311Platinum£5.99
Compare BMW 503 spark plug from trusted brands — check fitment by engine
Popular Spark Plug parts at great prices.
Finding the right spark plug for your BMW 503 is essential for safe and reliable driving. We stock 5+ options from 3+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.
When choosing spark plug for your BMW 503, consider factors like OEM vs aftermarket quality, material specifications, and your driving conditions. OEM parts match original specifications exactly, while premium aftermarket brands like Bosch, TRW, and Febi Bilstein often offer comparable quality at lower prices.
All spark plug listed on this page are confirmed compatible with BMW 503. Our fitment data is sourced from TecDoc, the industry-standard European automotive parts database. If you are unsure about compatibility, check the OE part number on your existing component and use our cross-reference search.
Common original equipment numbers linked to stocked alternatives.
