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Radium 20-1748 V2 Quick Connect, 19mm Male to 16mm SAE Male 90° Fitting

Radium 20-1748 V2 Quick Connect, 19mm Male to 16mm SAE Male 90° Fitting

SKU: SKU:  20-1748

Regular price $104.99
Regular price Sale price $104.99
Ships in 2-3 weeks
Taxes included.
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Radium 20-1748 V2 Quick Connect, 19mm Male to 16mm SAE Male 90° Fitting

Application: BMW B58 (2nd gen B58TU), Toyota MK5 Supra, BMW Z4, Audi and Lamborghini 5.2L V10 (see Vehicle Fitment)
Part Type: V2 quick connect 19mm to 16mm male 90° swivel adaptor
Part Number: 20-1748


The Radium Engineering 20-1748 adapts the 19mm V2 quick connect to a swivelling 90° 16mm male fitting. It is compatible with the BMW Z4 and Toyota MK5 Supra, and the 90° design suits 2nd generation BMW B58TU valve covers, which have a vertical port. Internal O-rings allow it to swivel even after installation, and stainless steel bolts are provided to secure the green retainer.

V2 quick connect fittings are found on many OEM crankcase ventilation and turbo inlet connections. Radium V2 fittings are used with many of these connectors and are primarily used to plumb air/oil separator (catch can) systems.


Key Features

  • V2 side: 19mm V2 quick connect with green retainer
  • Outlet: 16mm male, 90°
  • Swivel: internal O-rings allow swivelling even after installation
  • B58TU ready: the 90° design suits 2nd generation BMW B58TU valve covers with a vertical port
  • Hardware: stainless steel bolts provided to secure the green retainer
  • Construction: 6061 billet aluminium, type-II anodised for corrosion protection

What's Included

  • 1 x Radium 20-1748 V2 quick connect fitting
  • Stainless steel bolts to secure the green retainer

Important Notes

  • Radium lists the Audi 5.2L V10 fitment as excluding the R8 Type 4S, and the Lamborghini 5.2L V10 fitment as excluding the Huracán.
  • Only the listed fitments are verified by Radium – the fitting may suit other applications not listed.
  • V2 sizes refer to the ID of the hose connected to the fitting, not the fitting itself, so the fitting measures larger than its nominal size.
  • Always lubricate the mating O-rings with a light amount of petroleum jelly, O-ring lube or motor oil before installation.

Vehicle Fitment

  • BMW B58B30O1 (B58B30B) engines
  • BMW B58B30M1 (B58B30C) engines
  • Audi 5.2L V10 (excluding R8 Type 4S)
  • Lamborghini 5.2L V10 (excluding Huracán)

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.

Specs & Features

  • Part Number: 20-1748
  • Connection 1: 19mm V2 quick connect
  • Connection 2: 16mm male, 90°, swivelling (internal O-rings)
  • Retainer: green, secured with stainless steel bolts
  • Material: 6061 billet aluminium, type-II anodised
  • Hose ID: 19mm
  • Male barb OD: approx. 22mm
  • Female barb ID: approx. 22.5mm
  • Verified fitment: BMW B58B30O1 (B58B30B) engines; BMW B58B30M1 (B58B30C) engines; Audi 5.2L V10 (excluding R8 Type 4S); Lamborghini 5.2L V10 (excluding Huracán)