Genuine BMW Oil Inlet Tube O-Ring 11x1.78mm (OE Seal Ring) - Part No. 11427590576 - Fits 1/2/3/4/5/6/7/8 Series & X Models inc M135i M235i M340i 540i

BMW OE Seal Ring 11 x 1.78 mm - Part No. 11427590576

Stop annoying oil drips and protect engine health with this genuine BMW sealing ring for the lubrication feed pipe. Dimensioned precisely at 11 x 1.78 mm, this factory part is a direct swap for part number 11427590576 and restores a tight, leak-free joint in the oil supply system. Ideal when refitting the oil feed pipe or any time the union has been disturbed.

As BMW specialists, we use this exact ring on our own builds and customer cars. Fitment is spot on, sealing is instant, and it solves weeping joints properly with an original part. Customers consistently report cleaner engines, stable oil pressure and long-term reliability.

Why this OE seal ring is the right choice

• Genuine BMW component for faultless fit and durability
• Exact profile and size: 11 x 1.78 mm for the oil supply pipe interface
• Direct replacement for BMW part number 11427590576
• Helps maintain correct oil pressure and prevents oil misting or drips
• Heat and oil resistant OE elastomer for long service life
• The smart fix when carrying out oil system work or chasing minor leaks

Also known as

BMW oil feed pipe seal, oil supply tube O ring, lubrication line sealing ring, engine oil pipe gasket, OE oil seal 11 x 1.78, BMW 11427590576, factory replacement oil seal, BMW leak fix ring, oil pipe union seal, BMW M135i M235i M340i 540i oil seal ring.

Vehicle coverage

Suitable for a wide range of BMW models, including:

• 1 Series: E82 E88 135i, F20 F21 including M135i and M140i, including xDrive
• 2 Series: F22 F23 including M235i and M240i, F87 M2
• 3 Series: E90 E91 E92 E93 LCI 335i, F30 F31 F34 335i and 340i including xDrive and Hybrid 3, G20 G21 M340i
• 4 Series: F32 F33 F36 435i and 440i including xDrive
• 5 Series: F07 GT 535i and 550i, F10 F11 535i, 550i and Hybrid 5, G30 G31 540i
• 6 Series: F06 F12 F13 640i, 650i and ALPINA B6, G32 GT 630i and 640i
• 7 Series: F01 F02 F03 F04 740i and 750i including ALPINA applications and Hybrid 7, G11 G12 740i and 745e
• 8 Series: G14 G15 G16 840i
• X Models: X1 E84 35i, X3 F25 35i and G01 M40i, X4 F26 35i and M40i, G02 M40i, X5 E70 LCI 35i 40i 50i, F15 35i and 50i, G05 40i and 45e, X6 E71 35i 40i 50i and E72 Hybrid X6, F16 35i and 50i, G06 40i, X7 G07 40i
• Z Series: G29 Z4 M40i

If you are unsure, we will confirm suitability before dispatch. See the compatibility check below.

Specifications

• Part number: 11427590576
• Size: 11 x 1.78 mm
• Manufacturer: BMW

Pro tips

• Always renew this seal when the oil feed pipe is removed or refitted
• Lightly oil the ring before installation for an even seat and to avoid pinching

Fitting service

Professional installation available at MJ Modifications in Warwickshire. For pricing or to book, email info@mjmodifications.co.uk.

Compatibility check

We run a parts compatibility check before shipping. Add your UK registration number or the last 7 digits of your VIN at checkout so we can verify fitment.

Warranty

Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided at checkout on compatible vehicles.