Product OEM Part Number: 11340029751, 11-34-0-029-751
Replacement Part Number: 11340054492, 11-34-0-054-492
Old Part Number: 11340039494, 11-34-0-039-494
Origin: Italy
Quality: Genuine accessories / oem parts
Specification: 2 kti Valve Seals. 1 kti = 16 pieces. Same part number for intake and exhaust.
Compatible Engine Models:
N62 3.6L-4.8L, N63, S63 4.4L V-type 8-cylinder (V8)
N46, N42, N45, N40, N45N Inline 4-cylinder (L4) 1.6L-2.0L
Installation Location:
16pcs = Intake camshaft valve stem seals
16pcs = Exhaust camshaft valve stem seals
Function: Prevents oil leakage into combustion chamber
Blocks gas leakage
Controls oil consumption
Stabilizes engine performance
Operation:
Seals clearance between valve stem and guide to:Block oil/gas leakage into combustion chamber
Maintain engine pressure balance
Prevent oil from entering intake/exhaust pipes
Stop fuel-air mixture and exhaust gas leaks
Valve stem sea protects against engine oil entering combustion chamber
Intake & Exhaust valve oil seal operates under high temperatures while exposed to gasoline and oil
Valve oil seals can prevent engine oil from entering the intake and exhaust pipes, avoid oil loss, prevent the leakage of gasoline-air mixture and exhaust gases, and stop engine oil from entering the combustion chamber. As one of the important components in the engine valve train, valve oil seals come into contact with gasoline and engine oil under high temperatures.
Failure Symptoms: Blue exhaust smoke (especially during startup/acceleration/idle)
Rapid oil level drop requiring frequent top-ups
Oil-fouled spark plugs (black/greasy deposits causing misfires)
Reduced cylinder pressure → weak acceleration
Power loss and engine hesitation
Recommendation: Choose Original accessories to fully resolve issues and restore original performance.
Compatible with BMW Vehicle Specific Fit:
2007-2013 1 series E81 E87/E87 LCI E88 116i 118i 120i
1997-2004 3 series E46 316Ci 318i 318ci 316ti 318ti
2004-2013 3 series E90/E90 LCI E91/E91 LCI E92/E92LCI E93/E93 LCI 318i 320i 316i
2003-2010 5 series E60/E61 LCI 540i 545i 550i 520i
2009-2012 5 series F07/F10 550i/ 550i xDrive M5
2019-2023 5 series G30/G90 550i/550ixDrive M5 Competition M xDrive
2003-2010 6 series E63/E63N E64 645Ci 650i
2010-2015 6 series F06/F12/F13 650i/650i xDrive M6
2001-2008 7 series E65 E66 735i 740i 745d 745i 750i 735Li 740Li 750Li
2009-2015 7 series F01;F02;F03;F04 750i 750Li/750LixDrive
2015-2019 7 series G11/G12 750i 750Li/750LixDrive
2019-2024 8 series G15/F92 G16/F93 M8 Competition M xD
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