BMW PA66 GF30 Manifold Cap – 22mm

When you’re rebuilding or maintaining your BMW diesel engine, the small details matter. This PA66 GF30 manifold cap is a direct-fit solution for enthusiasts who want OE-level sealing and durability for their intake manifold. Designed for a precise fit and made to handle the rigors of high-temp, high-oil environments, it’s the right choice for those who won’t compromise on reliability.

Fitment

• M47N / M47TU / M47TUD20 110 kW (148KM) 330 Nm
  • E46 320d/318d (2001-2005)
  • E83 X3 2.0d (to the end of 2006)
• M57 / M57D25 (od 2000) 122kW (164 KM) 350 Nm
  • E39 525d (2000-2003) – automatic transmission only
• M57 / M57D30 (od 1998) 184 KM (135 kW; 181 KM) 390 Nm
  • E39 530d – automatic transmission only
  • E46 330d / 330xd – automatic transmission only
• M57 / M57D30 (od 1998) 184 KM (135 kW; 181 KM) 410 Nm
  • E38 730d – automatic transmission only
  • E53 X5 3.0d
• M57 / M57D30 (od 1998) 193KM (142 kW; 190 KM) 410 Nm
  • E38 730d
  • E39 530d
• Note: 22mm end caps are generally for cars manufactured up to 2004, but exceptions exist.

Material & Construction

• Manufactured from PA66 GF30 – a glass fiber reinforced polyamide used in OEM automotive applications
• Includes a brown Viton O-ring, resistant to oils and extreme temperatures
• No difference in thermal expansion between cap and manifold

Technical Specifications

• Cap diameter: 22mm
• Mounting hole spacing: 35mm
• Mounting hole diameter: 4.5mm

What’s Included

• Manifold cap (22mm) with Viton O-ring

Installation Notes

• Install on a clean, undamaged manifold surface for best seal
• Torque mounting hardware to manufacturer specs
• No check engine light after installation

FAQ

• Will this cap fit my BMW if it was built after 2004?
  22mm caps are generally for cars up to 2004, but there are exceptions. Always check your existing cap size before ordering.
• Is the Viton O-ring included and does it handle high temperatures?
  Yes, the cap comes with a brown Viton O-ring designed for resistance to oils and extreme temperatures.
• Do I need to worry about different thermal expansion rates between the cap and my manifold?
  No, the cap material is matched to the collector for consistent thermal expansion.