Drilled Oil Pump Nut - M50, M52, M52TU, M54, S50US, S52

Precision drilled oil pump nut to attach safety wire for preventing costly loss of oil pressure

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Price:
$12.99

Our Drilled Oil Pump Nut for M50, M52, M52TU, M54, S50US, and S52 engines is a strongly-recommend replacement for the factory nut that is well-known for backing off and allowing the oil pump sprocket to fall off. This leaves you with no functioning oil pump and no oil pressure! If you're doing any work with the oil pan off (rod bearings, oil pan baffle, oil pan gasket, etc) that is the perfect time for this precautionary upgrade.

This nut is pre-drilled for safety wire, and it's the perfect solution for preventing this future problem. Wrap the safety wire around the spokes of the oil pump sprocket. The wire method is preferred over welding the nut so you can continue to do maintenance on the system. This is very cheap insurance that can save your engine - a must if you track your car.

Fits all E36 6-cyl, E46/Z4 non-M, E34 525i M50, E39 6-cyl, Z3 6-cyl, MZ3 S52.

Includes safety wire to complete installation. Oil pan gasket sold separately.

Torque reinstalled drilled/safety wired nut to 17 ft-lb. Remember that the nut is reverse thread.


BMW Fitments:
3 Series
E36 (92-99) > 323ic
E36 (92-99) > 323is
E36 (92-99) > 325i
E36 (92-99) > 325ic
E36 (92-99) > 325is
E36 (92-99) > 328i
E36 (92-99) > 328ic
E36 (92-99) > 328is
E36 (92-99) > M3 (1995)
E36 (92-99) > M3 (96-99)
3 Series
E46 (99-05) > 320i
E46 (99-05) > 323Ci
E46 (99-05) > 323i
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 328Ci
E46 (99-05) > 328i
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi
5 Series
E34 (89-95) > 525i M50
5 Series
E39 (96-03) > 525i
E39 (96-03) > 528i
E39 (96-03) > 530i
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 2.5
E36/7 / E36/8 Z3 (96-02) > Z3 2.8
E36/7 / E36/8 Z3 (96-02) > Z3 3.0
E36/7 / E36/8 Z3 (96-02) > Z3 M - S52
Z Series
E85 / E86 Z4 (03-08) > Z4 2.5i M54
E85 / E86 Z4 (03-08) > Z4 3.0i M54
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