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Diftech Turbo Oil & Coolant Lines Kit S14 SR20DET Bottom Mount

Diftech Turbo Oil & Coolant Lines Kit S14 SR20DET Bottom Mount



SKU: 014NU

Regular price $118.75 USD
Regular price $125.00 USD Sale price $118.75 USD
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DIF 10035 is a direct drop-in upgrade for the hard lines that come with S14 / SR20DET engine with Bottom Mount Turbocharger. Stock hard lines tend to crack and leak and are very difficult to work with due to the inherent rigidity of the material. Because the hard lines do not give, it may cause the installer to mis-thread the banjo bolts into the block and messing up the fragile aluminum treads. DIF turbo lines are made from a seamless synthetic CPE inner with an integral stainless steel braid and a high tensile stainless steel outer braid which allows the line to be flexible yet still strong. This results in lines that are much easier to install and maintain. The original coolant line banjo bolts are swapped for AN to metric adapter fittings for a better seal. This is a highly recommended upgrade for everyone planning to work on their turbo.

This kit includes everything you need to completely replace the stock lines for a easy bolt-on installation. The oil restrictor included in this kit is made to match original equipment specifications (.062 in / 1.6 mm). The oil restrictor may be substituted in the future so the lines can be reused for different type of turbochargers.

Note: For premium line kit search 10048

Coolant Feed & Return Line Feature

  • Goodridge 236 Cutter Design Hose Ends w/ 360 Degree Swivel
  • Goodridge Stainless Steel Braided Lines w/ 6000psi Burst Pressure
  • Goodridge Premium Quality Anodized Aluminum Fittings
  • Premium Copper Sealing Washers
  • Pressure Tested
  • Replacement Coolant Feed Line Available (DIF 10508)
  • Replacement Coolant Return Line Available (DIF 10509)

Oil Feed Line Features

  • Goodridge Premium Steel Crimp Fittings
  • DOT Approved Teflon SS Braided Lines w/ 12750 psi Burst Pressure
  • Goodridge Banjo Bolts w/ Premium Copper Sealing Washers
  • .062 in / 1.6 mm Stainless Steel Oil Restrictor Fitting
  • Premium Copper Sealing Washers
  • Pressure Tested
  • Replacement Oil Feed Line Available (DIF 10517)

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Easy Returns

We understand sometimes you may change your mind. Returns are easy and hassle free. Just make sure the item is unused and in original packaging.

Quick Shipping

We want you to get your items FAST. We offer same day shipping for all in-stock items. Orders must be placed before our 12:00 PM PST cutoff.

Have a Question?

For the quickest method, please email us at or talk to us on chat. You can also call us at (800) 321-4747.

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Customer Reviews

Based on 5 reviews

Great fit, way easier to deal with than the OEM hard lines.


These did NOT come with heat shielding material as previously posted. Good quality though!


Awesome product. I had a terrible leak from the block to the turbo so i decided to get these lines. Almost impossible to put them on when the turbo and manifold are in but take them off and its as simple as it gets. Should have gotten these a long time ago!


The kit i received had a faulty fitting on it that made installation impossible (fitting would not spin freely, binded). Had to spend additional money buying a new fitting so i could get the job done. Tried to contact DIF but never received any contact back from them. I wont be buying any DIF products in the future as a result of this poor customer service.


Great product, that it also came with heat shielding material.


FRSport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. FRSport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes: parts such as intake, exhaust, and software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls and other items related to vehicle emmisions.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to