• MINI Cooper S JCW K03 turbo oil feed banjo fitting with built-in 1.8mm restrictor and copper washer
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MINI Cooper S JCW Turbo Oil Feed Inlet Fitting Restrictor | K03

MINI Cooper S JCW Turbo Oil Feed Inlet Fitting Restrictor | K03

$62.37 USD
$0.00 USD $62.37 USD
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Technical Description

Is your MINI blowing blue smoke? Precision oil control starts here. The N14 and N18 "Prince" engines are known for their high-pressure oiling circuits, which can easily overwhelm the internal seals of the factory K03 turbocharger. Excessive oil flow leads to blow-by, carbon buildup, and the dreaded blue smoke from the exhaust. This GryphonTek Signature Series Fitting is the professional solution, featuring a built-in 1.8mm restrictor to regulate oil pressure and safeguard your turbo’s longevity.

  • -4AN Conversion Foundation: The essential starting point for upgrading to high-performance PTFE braided lines. Converts the factory inlet to a secure -4AN flare for a leak-free, modern plumbing setup.
  • Precision 1.8mm Restrictor: Protects your turbo by regulating oil flow at the source. The precision-drilled 1.8mm orifice ensures optimal lubrication while preventing high-pressure spikes from damaging sensitive internal seals.
  • Industrial-Grade Durability: Machined from high-strength mild steel and electroplated for maximum corrosion resistance. Built to survive the extreme "Hot Side" engine bay temperatures of the MINI R56 platform.
  • Direct Bolt-on Reliability: A 100% plug-and-play replacement for factory hardware. Includes high-purity copper washers to ensure a leak-free, high-pressure seal.

Specifications & Data

Vehicle Compatibility +

• Make: MINI (Cooper S / JCW)
• Chassis: R55, R56, R57, R58, R59, R60, R61
• Engine: 1.6T N14 & N18

Kit Included +

• -4AN Banjo Eye
• Banjo Bolt Built-in 1.8mm Restrictor
• Copper Washers

Product Specifications +

• Material: Electroplated Mild Steel (Anti-Corrosion)
• Restrictor Size: 1.8mm Precision Orifice
• Connection: -4AN Male Flare (for PTFE braided line compatibility)
• Function: Regulates turbo oil flow to prevent seal blow-by and blue smoke
• Feature: Essential for converting factory hard lines to 4AN braided lines
• Benefit: Increases turbocharger longevity and simplifies maintenance

Why Upgrade / Why Choose +

The MINI Cooper S produces significant oil pressure, especially during cold starts and high-RPM driving. Without proper regulation, this pressure forces oil past the turbocharger's piston ring seals into the turbine housing, where it burns off as blue smoke. This not only ruins your engine's efficiency but can also lead to premature catalytic converter failure and heavy carbon deposits.

The GryphonTek Precision Fitting is the mandatory upgrade for anyone ditching the fragile factory hard pipes. By converting the factory banjo setup to a standard -4AN flare, you gain the ability to use flexible PTFE braided lines while ensuring your K03 turbo receives the exact amount of oil it needs. Whether you are performing a turbo refresh or a routine service, this "set and forget" component protects your engine from costly smoke-related repairs and ensures a professional-grade finish.

Support & Logistics

Shipping & Global Export +

Proudly exported to 75+ countries. All orders are dispatched via DHL Express, FedEx, or EMS from our Taiwan hub.

  • AU / USA: 3-5 Business Days.
  • Rest of World: 5-12 Business Days.
  • Tracking: End-to-end tracking number provided within 24H.
Import Duties & Taxes +

We’ve optimized our tax process for core markets to ensure zero hidden fees:

USA MARKET

All-inclusive pricing. No hidden duties or extra fees at delivery.

AUSTRALIA

Orders under AUD 1,000 are typically tax-free. No GST surprises.

*Other Countries: Import duties are determined by local customs and are the buyer's responsibility.

30-Day Returns & Warranty +

30-Day Returns: Return or exchange within 30 days of delivery. (Shipping at buyer's expense).

Limited Lifetime Warranty: Covers manufacturing defects. (Excludes racing misuse).

GryphonTek Engineering — Precision Fitment. Global Delivery.