{Vehicle Fitment-1} Valve stem seal For 2006-2013 BMW 1-series 128i 130i 135i M135i, bmw 2-series 235i M235i M240i, For 2007-2019 BMW 3-series 325xi 328i 328xi 335i/335is 335xi 340i (2006-2013 323i 325i), 2014-2020 BMW 4-series 435i Gran Coupe 440i, 2008-2025 BMW 5-series 528i/528i xDrive 528xi 535i GT 535xi 540i (2006-2010 525i 525xi) {Vehicle Fitment-2} engine Valve Oil Seals For 2012-2019 BMW 6-series 640i Gran Coupe, 2016-2025 BMW 7-series 740i 740Li 745e 750e 745Le (2016 750i), 2020-2025 BMW 8-series 840i Gran Coupe, 2016-2025 M2 M3 M340i M4 M440i (2017 M5), 2012-2015 BMW X1 25i 28i , 2007-2016 BMW X3 28i 35i, 2015-2025 BMW X4 35i 40i, 2007-2025 BMW X5 35i 40i 45e, 2008-2025 BMW X6, 2019-2025 BMW X7, 2006-2025 BMW Z4 OEM Upgrades: Valve Seals are the latest-generation OEM parts for BMW. 1 set = 12 pcs. Part Number: 11340034068, 11-34-0-034-068. Upgraded from the previous-generation OEM design (official update) for improved durability and a longer service life, allowing the fluoroelastomer (FKM) to seal the cylinder head more precisely and effectively help prevent engine oil from flowing into the combustion Specifications: Exhaust & Intake Valve Seals for BMW inline 6-cylinder engines. Intake valve stem seals fit engine models N54, N52, N52, N55, N53; for S55 and B58, the same seal model is used for both intake & exhaust valves. If your vehicle has increased engine oil consumption, blue smoke from the exhaust, or carbon buildup on the ignition system (spark plugs, ignition coils), replacing the valve seals can help resolve these issues. This is a critical engine component Installing valve stem seals is a major job and requires removing multiple engine components and accessories. Professional installation by a qualified mechanic is strongly recommended. If the seals fail, it can indirectly lead to oxygen sensor contamination, catalytic converter clogging and/or reduced efficiency, a blackened exhaust tip, wet/oily residue at the tailpipe, and more frequent engine roughness or misfires The part described is officially procured and resold by PAWODIKE—(Professional automotive parts). - the oem accessories

Product OEM Part Number: 11340034068, 11-34-0-034-068

Place of Origin: Italy

Accessory Quality: Genuine accessories / OEM parts

Specification: 1 kti Valve Seal, 1 kti=12pcs comes with one thin red plastic sleeve. The same part number is used for individual intake valve oil seals.

Compatible Engine Models: Inline 6-cylinder 3.0L N52 B58 N53 N55 N54 S55 models

Installation Location: Camshaft intake valve stem seal

Function: Prevents oil leakage into the combustion chamber, stops gas leakage, controls oil consumption, and stabilizes engine performance.

Working State: Seals the gap between the valve stem and guide: Located between the valve stem and valve guide, effectively preventing oil from leaking into the combustion chamber.

Prevents gas leakage: Stops gases from the cylinder from entering the crankcase, maintaining internal engine pressure balance.

Valve stem sea prevents oil from entering the intake and exhaust pipes, avoids oil loss, and prevents leakage of the gasoline-air mixture and exhaust gases.

Intake valve oil seal is a critical component of the engine valve train, operating in high temperatures and in contact with gasoline and oil.

Symptoms of Failure: Particularly noticeable during startup, rapid acceleration, or idling: Oil entering the combustion chamber burns, producing blue smoke.

Engine oil level drops rapidly in a short period, requiring frequent top-ups.

Spark plugs become contaminated with oil, appearing black and greasy, leading to reduced ignition performance.

Insufficient cylinder pressure causes reduced power, poor acceleration. Exhaust color: Blue smoke is a typical characteristic.

Excessive oil consumption from worn or degraded valve stem seals can be problematic, leading to serious engine problems if not repaired

Choosing genuine replacement parts provides a complete solution, restoring your vehicle to its original performance.

Vehicle Specific Fit:

2007-2013 1 series E81 E82 E87/E87LCI convertible E88 130i 125i 128i 135i
2011-2019 1 series F20/F20 LCI F21/F21 LCI M135i M135i xDrive M140i M140i xDrive
2013-2021 2 series F22/F22 LCI convertible F23/F23 LCI M235i/M235ixDrive M240i/M240ixDrive
2015-2017 2 series F87/F87 LCI M2/M2 CS/M2 Competition
2021-2024 2 series coupe G42 M240i M240i xDrive G87 M2
2004-2012 3 series E90/E90LCI E91/E91LCI 323i 325i/325xi 328i/328xi 330i/330xi 335i/335xi
2006-2012 3 series coupe E92/E92LCI convertible E93/E93LCI 325i/325xi 328i/328xi 330i/330xi 335i/335xi 
2011-2015 3 series F30/F30LCI F31/F31LCI 335i/335ixDrive 340i/340ixDrive
2013-2018 3 series F34 GT/F34GTLCI F80/F80LCI 335i/335ixDrive 340i/340ixDr