| This is the disc between the exhaust manifold and the diverter valve. It is a one-way valve that keeps exhaust from going into the diverter valve. |
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| We carry BMW SMOG Non-return Valve - Used BMW parts with the following BMW part numbers. Please select your year and model below |
| 11721312840 , 11721261465 , 11727508049 , 11727540471 , 11721707619 , 11721704887 , 11721744255 |
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| BMW For both 49 state and California cars |
| 1975 1976 1977 1978 1979 BMW 320i 2DR ( E21 ) BMW 2002 2DR ( E10 ) BMW 530i 4DR ( E12 ) BMW 630csi 2DR ( E24 ) BMW 633csi 2DR ( E24 ) BMW 733i 4DR ( E23 ) |
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| BMW Secondary air injection check valve |
| 1991 1992 1993 BMW M5 4DR ( E34 ) |
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| BMW Mounts on tube connected to intake manifolds |
| 1994 1995 BMW 530i 4DR ( E34 ) |
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| BMW Located on tube connecting exhaust maniifolds |
| 1998 1999 2000 2001 2002 2003 2004 2005 BMW 740iL 4DR ( E38 ) BMW 740i 4DR ( E38 ) BMW 540i Wagon ( E39 ) BMW 540i 4DR ( E39 ) BMW X5 4.4i SAV ( E53 ) BMW X5 4.6is SAV ( E53 ) |
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| BMW Valve mounts on pipes going into exhaust manifolds |
| 1996 1997 1998 1999 BMW 328is 2DR ( E36 ) BMW M3 2DR ( E36 ) BMW 328i 4DR ( E36 ) BMW M3 4DR ( E36 ) BMW 323is 2DR ( E36 ) BMW 323i CONV ( E36 ) BMW 323i 4DR ( E36 ) BMW 328i CONV ( E36 ) BMW M3 CONV ( E36 ) BMW 528i 4DR ( E39 ) BMW 528i Wagon ( E39 ) BMW Z3 2.8 Roadster ( E36 ) BMW Z3 2.8 Coupe ( E36 ) |
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| BMW Valve on exhaust manifold |
| 2004 BMW X5 3.0i SAV ( E53 ) |
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| BMW Located on Exhaust manifold |
| 1999 2000 2001 2002 2003 2004 BMW X5 3.0i SAV ( E53 ) |
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