BMW Spark Plug 12120037582 Genuine

BMW Spark Plug 12120037582 Genuine

✅ Description / specifications

• The plug is listed as “High Power Spark Plug – Genuine BMW 12120037582”.
• From one supplier: thread size M12 × 1.25, spanner size 14 mm, electrode gap pre-set to 0.8 mm, tightening torque ~ 23 ± 3 Nm.
• The Bosch part associated with it is ZR5TPP33S (and sometimes ZR5TPP33).
• It’s an iridium/platinum type plug (or “double platinum” in some listings) and is engineered for the higher-performance BMW turbo 6-cylinder petrol engines.

🚗 Fitment / vehicles

This plug is used mainly in BMW six-cylinder turbo petrol engines (the N55 family) and then some other high power petrol engines. Some specific applications listed:

• Cars with the N55 engine: e.g., E82 135i/135is (2011 +), F22 M235i (2014+). (
• 2011 + E90 335i/335xi with N55.
• F10 535i / 535i xDrive (2011-2016) according to one listing.
• F25 X3 xDrive35i (2011-2017) is listed for 12120037582 in a parts listing. The listing from Turner Motorsport states fitment includes many: F12 640i, F06 640i GC, F01 740i/740Li, E84 X1 xDrive35i, E70 X5 xDrive35i, E71 X6 xDrive35i.

Important note: Always verify engine code and build engine (N55 etc) for your specific vehicle. The listing above are representative fitments.

🔁 Alternative / superseded part numbers

• OEM Bosch part numbers: For example Bosch “0 242 145 515” is listed as an equivalent for 12 12 0 037 582.
• Another number: 12120037575 is noted as a “Replaced Number” in a listing for 12120037582.
• The Bosch part “ZR5TPP33S” corresponds to OE 12120037582 (and 12 12 0 037 582) and is listed as a direct replacement.
• Some mention that ZR5TPP33 (without “S”) is now used as a replacement for ZR5TPP33S.

So for alternative/superseded:

• 12120037582 (12 12 0 037 582) is primary.
• 12120037575 is referenced as a prior/alternate.
• Bosch part 0 242 145 515 is equivalent.
• Bosch ZR5TPP33 / ZR5TPP33S are associated.
• In aftermarket/parts catalogs also alternative brands: e.g., BERU Z363, etc.

🛠 Installation / service notes

• Use correct spanner/socket: 14 mm, 12-point socket recommended.
• Thread size M12 × 1.25.
• Gap is preset 0.8 mm.
• Recommended to change the entire set simultaneously (for multi-cylinder engines) since mix of new/old plugs can lead to uneven performance.
• One forum user notes that spec between ZR5TPP33S & ZR5TPP33 are “identical” though debate exists for high-tuned engines.

✅ Summary

In short:

• BMW OEM spark plug 12120037582 is for high-performance petrol BMW engines (especially 3.0L turbo straight-6 N55).
• Equivalent part numbers include 12 12 0 037 582, Bosch ZR5TPP33S / ZR5TPP33, Bosch part 0 242 145 515, and also reference 12120037575.
• Fits many BMW models: 1 Series, 3 Series, 5 Series, X1, X3, X5, X6 (subject to engine being N55 or compatible).
• Use correct installation torque, socket, gap, and replace as a set.

If you like, I can look up a full list of vehicle fitment (by year, engine code) for 12120037582, plus aftermarket equivalents (NGK, Denso etc) available in Bangladesh / South Asia pricing. Would you like that?