{Vehicle Fitment-1} engine Valve stem seals set For BMW 2007-2013 1 series 116i 118i 120i, 1997-2004 3 series 316Ci 318i 318ci 316ti 318ti 2004-2013 318i 320i 316i, 2003-2010 5 series 540i 545i 550i 520i 2009-2012 550i/550i xDrive M5, 2019-2023 5 series 550i/550i xDrive M5 Competition M xDrive, 2003-2015 6 series 645Ci 650i//650i xDrive M6
{Vehicle Fitment-2 } engine Valve stem oil seal kit For BMW 2001-2008 735i 740i 745d 745i 750i 735Li 740Li 750Li 2009-2019 750Li/750Li xDrive, 2019-2024 M8 Competition M xDrive, 2009-2015 X1 18i, 2006-2010 X3 2.0i, 1999-2013 X5 4.4i 4.8is 4.8I 50i xDrive 2013-2018 X5 50i xDrive 2010-2023 X6 50i xDrive M Competition M xDrive, 2002-2008 Z4 2.0i
{Quality & Specifications} Valve oil seals are OEM accessories, with part numbers 11340029751 & 11-34-0-029-751 Replacement number 11340054492, 11-34-0-054-492. They come in 2 sets with a total of 24 pieces, including exhaust valve seals & intake valve seals. These valve stem oil seals are For BMW engines as follows: N62 (3.6L-4.8L), N63, S63 (4.4L) V-type 8-cylinder (V8), and N46, N42, N45, N40, N45N inline 4-cylinder (L4) (1.6L-2.0L)
{Upgrades & Functions} This valve oil seal kit is the latest generation of Genuine accessories, upgraded based on the previous generation of OEM parts. The valve oil seals ensure smooth engine operation, control fuel consumption, and prevent engine air leakage. Issues such as carbon buildup in the engine, accelerated power loss, and reduced performance are usually directly related to this component. The latest part has undergone a sealing upgrade for these functions
{Fault Symptoms} When the exhaust valve oil seal or intake valve oil seal is damaged, the exhaust pipe will emit blue smoke—this is especially noticeable during startup, rapid acceleration, or idling. After oil enters the combustion chamber, the engine oil level will drop rapidly, requiring frequent refilling.Carbon buildup on the spark plugs will lead to reduced ignition performance. The overall engine performance will decrease; insufficient cylinder pressure will cause power loss and slow acceleration
{Vehicle Fitment-3 } valve Stem oil seal gasket For BMW 1 series E81 E87/E87 LCI, 3 series E46 E90/E90 LCI E91/E91 LCI E92/E92LCI E93/E93 LCI, 5 series E60/E61 LCI F07 F10 G30/G90, 6 series E63/E63N F06 F12 F13, 7 series E65 E66 F01 F02 F03 F04 G11 G12, 8 series G15 F92, X1 E84, X3 E83/E83LCI, X5 E53 E70, X5 F15 F85, X6 E71 E72, X6 G06 F96, Z4 E85