Company: Forge Motorsport

Hyundai i30N MK3.5 (Facelift) Oil Cooler

Product code: FMOC13
£507.56 Inc. VAT £422.97 Exc. VAT (VAT will be added during the checkout process) Estimate Delivery

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More info With Forge leading the way in aftermarket products for the new Hyundai’s we are proud to present our Turbo inlet adaptor for the i30N DCT Facelift model.  - Read More
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Product Description

Developed from our direct involvement with BTCC and success with the previous generation I30N, Forge Motorsport is proud to release an oil cooler kit for the Hyundai i30N MK3.5. This oil cooler radiator is lifted straight from our motorsport department, so we know this component performs extremely well, as well as the cores tough and durable construction. Next stage was to design a kit incorporating this core which will fit the i30N Mk3.5 perfectly - the result is a bespoke oil cooler kit with true motorsport development behind it.

During our time developing new products for the second generation i30N we found a significant floor with the vehicle especially when tuned. Oil temperatures can climb to dangerous levels when on track or when driven hard in hotter climates, The rising oil temperatures change the viscosity potentially thinning the oil, this will result in only one outcome, a reduction of sufficient lubrication of your engines internal components. Therefore, the FMOC13 is a must have product for the keen driver. The location of the oil cooler at the front of the vehicle’s radiator grill allows for superior air flow. During our development of this product, we have seen oil temperatures reduced significantly.

Unlike many oil cooler kits, the FMOC13 keeps the factory oil to water cooler in position. This essentially doubles your engines oil cooling. This new product is not to be confused with a universal oil cooler. FMOC13 has a laser cut aluminium bracket which makes for perfect fitment to the i30N crash bar and has an incorporated side ducting which guides air flow through the core.

Manufactured in Gloucester UK, FMOC13 is made to the uppermost standard and is backed up by the Forge Motorsport lifetime warranty. It is available in raw finish or black powder coat finish for the stealthier look.

We’ve incorporated a thermostat that is built into the oil cooler sandwich plate, this has been set to open at 85°C as this was observed to be the optimal working temperature of the oil cooler when testing, this means the engine is working at its most efficient oil temperature range however hard you push the vehicle. The oil cooler lines are manufactured from PTFE and reinforced with stainless steel braided line nylon braid, and the fittings are aviation grade aluminium.


The kit comes with the following:

1x Forge aluminium sandwich plate
1x twin pass oil cooler 
4x M6x20 fasteners
4x M6 washers
2x oil lines 
4x M6 Rubber Riv nuts
1X M20x1.5 adaptor

1X weather strip
All the fixings required 

Complimentary Products

With Hyundai redeveloping the turbo charger to run more boost and a larger flow than the previous generation there is even more reason to replace more restrictive OEM intercooler with the larger Forge Motorsport item, based on a stage 2 ECU calibration and fitted with the Forge intake (FMINDK28) and turbo inlet adaptor (FMTIA10) the new intercooler performed as expected,

The FMTIA10 is proven to benefit the engines performance. With one of the weak links on the i30N and intake system being the restrictive aluminium inlet pipe we found something more was needed on stage 1 and 2 tuned vehicles. You cannot go wrong with Forge Motorsport hardware on your tuned Hyundai, the results speak for themselves.

This aftermarket cold air intake system improves your i30N’s airflow in several key ways. It routes the air more directly into your engine, using a huge 102 mm diameter CNC mandrel bent alloy pipe. The aftermarket system also improves the airflow by adding a high-flow, high efficiency air filter in place of the more restrictive factory air filter. Finally, the cold air intake system is set up to allow cooler air to easily flow into your engine


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Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.

Product Reviews

Product Reviews

from on Mar 27th 2024 Verified Purchase
A must have product in my opinion. Standard oil temps would get quite how on the track or fast road driving and this changes the temps drastically all for improved drivability and reliability while enjoying the car as it should be enjoyed.
from on Mar 17th 2024 Verified Purchase
Your engine needs oil, and the oil needs to be at a optimal temperature for it to perform it's best. Whether you're driving hard and spiritedly on a track or b-road, you will want your oil to remain at it's optimal temperature, and this is where the oil cooler comes in to save the day. Amazing bit of a kit that for me is a must, and should be for you too.

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Compatible Vehicles

Click the triangles to find your car make and model. Note that the models listed here have either had the part fitted by us or a customer or they are listed as being compatible on industry parts databases. Where it has not been directly fitted by Forge there will then be a separate May Also Fit tab where the make and model will also appear and which details our no-risk approach to purchasing this product, so it is worth checking there as well.

If you need further assistance, please call us on +44 1452 380999 or email us.



Hyundai i30N MK3.5 (Facelift) Oil Cooler


Warranty Infomation

The majority of Forge Motorsport products come with a limited lifetime warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.

For further information, please call our customer service team on +44(0)1452 380999 or email

Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.

This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.



UK Mainland

Next day delivery applies to orders processed before 12 noon Monday to Friday, subject to stock availability and geographical restrictions. 'Next day' refers to next working day. We cannot guarantee next day delivery for orders placed after this time. Whilst we endeavour to honour our next day service, next day delivery cannot be guaranteed due to other extenuating circumstances. Full details

Delivery is free of charge for all orders £200 (ex VAT) or over. Products are sent by standard DPD service which is usually a next day service, but can take 2 days in transit. We reserve the right to ship smaller, lower value items via Royal Mail or any other service. (Not including Scottish Highlands, Scottish Isles, Northern Ireland, Guernsey, Jersey, and Isle of Man where charges will vary). 

Europe and Worldwide

Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and destination postcode. Live shipping rates will be calculated at checkout using ShippyPro and dependent on criteria, you will be given the option of DHL, DPD, or FedEx courier services.

Shipping into the EU - Duty Charge Information

All Forge products are sold with a Delivery Duty Unpaid (DDU) status and an import tariff may apply to your order. Customers will be contacted by the Customs and Excise authority in the destination country regarding payment prior to delivery, and it is important that correct contact telephone number and email information be submitted with the order to facilitate this part of the delivery process. Some couriers are charging an admin fee for shipping into the EU. 

If we detect at checkout that you are located within the European Union (EU), you are eligible for a contribution towards your import duty and tax payments. We can add an additional 20% on the total cost of your order, we will then pay the duty and tax costs above your contribution. This offer will ensure the price you pay at checkout is the total you pay, with no additional charges. It will also ensure you have the fastest possible delivery, with no delays. For more information, please see here

Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact Forge using the email address if you require any more information. We reserve the right to change the delivery service and company at any time.

Forge Motorsport ships via either UPS, FedEx, DHL (primarily for outside of UK), DPD (primarily for UK), or any other courier we chose. Other shipping options may be available for an additional fee over and above the actual shipping costs. Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper however we can assist with most cases.

FAQ's and other info can be found here.

Expert Answers

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Hello, in the specs you state that thermostat opens up at 85C, that might be not true, i am not able to push the car above 80C. When i hit 80C on oil, it start to cool down to 73C on oscilate to 80C. Is there a chance to change the thermostat to 93C or 92C ?

The thermostat can be changed however we do not offer a replacement at a different temperature range , the thermostat will open around 85 degrees c