Product Information

BMW valve guide set (X12) 325i, 323i, 328i, M3, e36 92-99 525i e34 91-95, Z3 2.3,2.8, MZ3 e36/7 94-00, 525i, 528i, 530i e34,e39,e60 99-04  11 12 1 735 533

This is a set of 12 high quality silicone bronze manganese intake or exhaust valve guides (12 pieces) for the BMW 3 series, 5 series, Z3 &4, and X3, X5 models fitted with the M50, M52, M54, S50, or S52 6 cylinder engines. Both intake and exhaust guides are the same for these model engines. The Silicone bronze material has far superior wear characteristics over the factory brass valve guides. These guides are standard outside diameter and standard inside diameter. These are the same performance intake and exhaust valve guides we use for our in house engine building program. These valve guides exceed BMW factory specs in all aspects. If you are doing a simple valve job, or building a performance head these are the valve guides you will want to install. Set includes 12 guides. These are the same for intake and exhaust. Order 2 sets for complete intake and exhaust valve guide replacement. 

Please note: Guides should be installed by a competent machine shop. Guides need to be press fit, to factory specifications, and head should be heated for expansion. Guides must be honed or reamed to final specification. 

Fitment:
All vehicles fitted with the twin cam, in line 6 cylinder m50, m52, m54 and (S50, S52 U.S. version) engines. 
Please note some vehicles at the end of there production dated, may be fitted with the N52 engines. These guides will not fit the N52 engine. 

Size:
Valve guide outside diameter    12.59 mm
Valve guide inside diameter        6.00 mm
Valve guide overall Length        43.18 mm

Fitment: 

Make   model                Body       Engine        Year
----------------------------------------------------------------------

BMW   323i, 325i, 328i   e36        m50,m52     92-99
BMW   M3                      e36         s50,s52       95-99    U.S. M3 engine only
BMW   323i, 328i           e46         m52             98-00

BMW   525i, 528i          e34,e39    m50,m52    91-8/2000
BMW   525i, 530i          e60           m54            02-12/04

Z3 2.3, 2.8                   e36/7         m50,m52    94-99
Z3M                             e36/7         s52             99-3/2000  U.S. M3 engine only  
Z4 2.5, 3.0                   e85            m54            02-11/05

X3, X5 2.5, 3.0            e83,e53     m54            99-06


Seller Information

Al Hafner Tuning has been servicing BMW, Porsche, Mercedes, and Mini Cooper since 1981. The products we offer on E-bay are the same high quality products we use in our service department every day. If you have any questions we encourage you to contact us. Our staff can answer most questions or concerns. All products ship everyday by USPS or Fed Ex. Our Business hours are Monday - Thursday 9:00AM to 5:00PM central time. 

Return Policy

We must be contacted within 30 days of receipt of the product. Product must be in new and unused condition. Buyer will pay the return shipping. Refunds will be given as money back or replacement of the part if stock is available (buyer's choice).