The factory plastic PCV valve on the N54 twin turbo engine is a well-known failure point — prone to cracking, loosening, and allowing crankcase pressure to build unchecked, leading to oil loss, boost leaks, and compromised engine performance. This upgraded PCV valve and cover kit replaces the factory plastic unit with a CNC-machined 6061-T6 billet aluminum valve paired with a heat-resistant fluorelastomer O-ring, engineered to correctly route crankcase gases back into the combustion chamber and prevent crankcase over-pressurisation. The anodized aluminum construction withstands the sustained heat and pressure demands of the N54 twin turbo environment where the factory plastic consistently fails over time.

Features:

• 6061-T6 billet aluminum valve replaces the factory plastic unit – resistant to cracking, deformation, and heat-related failure
• Heat-resistant fluorelastomer O-ring provides a reliable, long-term seal under the sustained temperatures of the N54 twin turbo engine environment
• CNC machined to precise tolerances for a perfect fit – no modification or adapters required
• Anodized surface finish for corrosion resistance and a clean, premium engine bay appearance
• Correctly routes crankcase gases into the combustion chamber – prevents crankcase over-pressurisation and associated oil loss issues

Specifications:

• Condition: 100% Brand New
• Type: PCV Valve & Cover Kit
• Valve Material: 6061-T6 Billet Aluminum
• Seal Material: Heat-Resistant Fluorelastomer O-Ring
• Surface Finish: Anodized
• Processing: CNC Machined
• Engine Compatibility: N54 Twin Turbo only

Fitment:

• BMW 1 Series E82 · E88 135i N54 Engine (2007–2013)
• BMW 1 Series M (1M) E82 · E88 (2007–2013)
• BMW 3 Series E90 · E91 · E92 · E93 335i N54 Engine (2005–2013)
• BMW 5 Series E60 · E61 535i N54 Engine (2008–2010)
• BMW 7 Series F01 · F02 740i · 740Li (2008–2016)
• BMW X6 E71 35i (2008–2014)
• BMW Z4 E89 35i · 35is (2009–2016)
• N54 twin turbo engine applications only – confirm engine code before ordering

Contents:

• 1x 6061-T6 Billet Aluminum PCV Valve
• 1x Heat-Resistant Fluorelastomer O-Ring
• 1x Billet Aluminum Cover (where applicable)

Benefits:

• Permanently resolves the cracking and loosening failure mode of the factory plastic N54 PCV valve
• Prevents crankcase over-pressurisation and associated oil loss, boost leak, and engine performance issues
• Fluorelastomer O-ring maintains a reliable crankcase seal under sustained high-temperature twin turbo operating conditions
• Billet aluminum construction provides a service life far exceeding the factory plastic component
• Clean anodized finish adds a premium visual upgrade in the engine bay

Installation Notes:

• Apply a small amount of clean engine oil to the cap threads before installation to ease fitment and prevent thread galling
• Do not overtighten – excessive torque can crack the valve cover
• If reusing the original plastic cap rather than the metal cover, the internal nubs inside the cap must be trimmed back before fitting
• Compatible with N54 twin turbo engines only – confirm engine code before ordering
• If unsure about compatibility with your specific variant or build date, contact our team with your chassis code and engine code before ordering

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues