• Turbo oil feed line kit for Mazda MX-5 Miata early MK1 with Garrett T25 / T28 journal-bearing turbo conversion, 4AN PTFE stainless braided hose with 1.8 mm restricted adapter fitting and copper crush washer.
  • PTFE Teflon stainless braided hose for turbo, heat-resistant and durable
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Mazda MX-5 Miata NA/NB Garrett T25 T28 Turbo Oil Feed Line Kit | 1.8mm Restrictor

Mazda MX-5 Miata NA/NB Garrett T25 T28 Turbo Oil Feed Line Kit | 1.8mm Restrictor

$84.73 USD
$84.73 USD
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Technical Description

This turbo oil feed line kit is designed for Mazda MX-5 Miata NA (MK1) and NB (MK2/MK2.5) models being converted from naturally aspirated to turbo using a compatible Garrett T25 or T28 journal bearing turbocharger.

The kit provides the pressurized oil supply connection from the engine to the turbocharger. It combines an application specific engine oil fitting, a flexible -4AN PTFE stainless braided line, and a Garrett T25 T28 turbo inlet fitting with an integrated 1.8mm restrictor.

Early NA models use the exhaust-side engine oil port with a direct fit M10 adapter. Late NA and NB models take the turbo oil supply from the oil pressure sensor location and use a 1/8 BSPT sensor tee.

This kit is configured for the listed Garrett T25 and T28 journal bearing turbo applications. Confirm the exact turbo model and oil inlet configuration before ordering, especially when using an aftermarket or non Garrett T25 T28 style turbocharger.

Key Features

  • Application specific engine fitting for Early NA, Late NA, and NB oil-feed arrangements
  • Flexible -4AN PTFE oil feed line with a 304 stainless steel outer braid
  • Garrett T25 T28 turbo inlet fitting with an integrated 1.8mm restrictor
  • Configured for the listed Garrett T25 and T28 journal bearing turbo applications

Need help confirming your vehicle application or turbo setup? Refer to the Mazda Miata NA/NB Turbo Oil & Water Line Fitment Guide before ordering.

Specifications & Data

Kit Included +

• -4AN PTFE stainless braided turbo oil feed line
• Garrett T25 T28 turbo oil inlet fitting with integrated 1.8mm restrictor

Vehicle Compatibility +

• Make: Mazda
• Models: Miata / MX-5 MK1 (NA), MK2/MK2.5 (NB)
• Engines: 1.6L (B6) / 1.8L (BP) Naturally Aspirated to Turbo conversion
• Year: 1989–2005

Turbo Compatibility +

• Turbo: Garrett T25, T28 Journal Bearing

Product Specifications +

• System Type: Pressurized turbo oil feed system
• Oil Feed Line Size: -4AN
• Inner Hose Material: PTFE
• Outer Braid Material: 304 stainless steel
• Oil Restrictor Size: 1.8mm
• Turbo Side Line Connection: -4AN

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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 48H.
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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.