Original BMW M6x25 Class 8.8 Oil Pan Bolt for N20/N26 BMW 2, 3, 4, and 5 Series, X1 sDrive28i, and Z4 sDrive28i (2012–2018)

BMW's M6x25 ASA bolt in strength class 8.8 secures the engine oil pan on N20 and N26 four-cylinder cars, including the 2012–2018 BMW 228i, 320i, 328i, 428i, 528i, X1 sDrive28i, and Z4 sDrive28i. The M6x25 designation gives an M6 thread and a 25 mm length, and 8.8 is the bolt's strength class. It is a small fastener at 8 g (0.28 oz), and BMW has supplied it since September 2011. The bolt is made in Germany and sold each, so you buy only the count your job calls for. Oil pan bolts clamp the pan to the bottom of the engine so its gasket can seal in the oil.

Original BMW Parts carry a 24-month parts warranty.

BMW uses this single number across a wide spread of 2.0 liter applications, which keeps ordering simple for owners of more than one of these cars. Within the models PMB covers, it appears on the F22 and F23 2 Series, the F30 3 Series, the F32, F33, and F36 4 Series, the F10 5 Series, the E84 X1, and the E89 Z4. The same bolt serves both the N20 and N26 versions of the 228i, 328i, and 428i.

Technical Details

• Manufacturer: BMW (Original BMW Parts)
• Part number: 11-13-7-603-830
• BMW name: ASA-Bolt
• Size: M6x25
• Strength class: 8.8
• Weight: 8 g (0.28 oz)
• Production start: September 2011
• Made in Germany
• Sold each
• Warranty: 24 months

Common Questions

Is this bolt sold individually?
Yes. It is priced and sold each.

What does M6x25 - 8.8 mean?
The bolt has an M6 thread, a 25 mm length, and strength class 8.8.

Does it fit both N20 and N26 engines?
Yes. BMW uses this number on both the N20 and N26 versions of the 228i, 328i, and 428i.

Keep a few on hand and the next oil pan job goes back together with factory hardware.

Fitment & Compatibility

Use the fitment table below to confirm year, make, model, submodel, and any notes tied to your exact vehicle. Pay close attention to engine, chassis, position, and option-specific details before ordering. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.