This large o-ring seals the intake tube to the throttle body on N54 and N55 engines. 【Perfectly Compatible】Designed specifically for the N54 N55 engine. For BMW E82/E88 135i N54 & N55 including 1M (2008-2012).
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AN10 19 Row Oil Cooler Kit Thermostat Adapter For BMW N54/N55 335i 335is 135i
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Silicone Couplers Intercooler Install Kit For BMW N54 N55 135i 335i 335xi 335is
Oil Cooler Adapter with Thermostat For BMW N54 N55 Engines E90 E92 335i 135i 1M
