Original BMW ASA Oil Pan Bolt, Grade 8.8 M6x25, for N20 and N26 BMW 228i, 320i, 328i, 428i, 528i, X1, X3, X4, X5, and Z4 (2012–2018)

On the N20 and N26 four-cylinder engines, BMW secures the oil pan with this Original BMW ASA bolt, part 11-13-7-603-833, an M6x25 grade 8.8 fastener used on 2012–2018 BMW 2, 3, 4, and 5 Series cars, the X1, X3, X4, and X5, and the Z4. An oil pan bolt holds the pan against the bottom of the engine block and keeps clamping force on the pan gasket. BMW requires these bolts to be replaced whenever the oil pan gasket is serviced or the pan is replaced. The bolt weighs 8 grams and is made in Germany.

Original BMW Parts carry a 24-month parts warranty.

BMW's parts data calls this part the ASA-Bolt and dates it from March 2011. The 8.8 rating marks the strength class, and the M6x25 size gives a 6 mm thread and 25 mm length. The same bolt carries across the F-chassis four-cylinder cars, from the 228i and 320i through the 528i, which keeps one number on the shelf for a wide range of oil pan jobs. Order enough for every bolt on the pan, since BMW calls for new ones at each gasket service.

Technical Details

• Manufacturer: BMW (Genuine BMW)
• Part number: 11-13-7-603-833
• BMW name: ASA-Bolt
• Size and grade: M6x25, class 8.8
• Weight: 8 g (0.28 oz)
• Production start: March 2011
• Made in Germany
• Priced and sold each
• Warranty: 24 months on Original BMW Parts

Common Questions

Can I reuse my old oil pan bolts?
BMW requires these bolts to be replaced when the oil pan gasket is serviced or the pan is replaced.

Is this bolt sold individually?
Yes. It is priced and sold each, so order one for every bolt position.

Every oil pan job at PMB Performance can start with the correct Genuine BMW 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.