Hel Performance Rear Differential Oil Cooler Toyota GR Yaris 20+
£826.86
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why buy from us
- 14 Day Return Period
- Authorised Dealer
- Free UK Delivery over £100
- Expert Advice 24/7
Description
Under aggressive driving such as track days and even some fast road scenarios, we found the differential on a GR Yaris can often suffer with excessive heat issues. To try and combat this, we’ve developed this comprehensive kit from scratch on our own development vehicle. It appears we were successful.
Once the differential oil hits 82°C, the Mocal electric oil pump located safely in the boot sends the signal for the oil to flow through the oil cooler, which we’ve positioned on the underside of the vehicle to get maximum airflow.
We designated the race-proven and reliable Setrab oil cooler with the job of lowering the temperature of the diff oil to its optimal level. Lowering the oil temperature in a safe way extends the lifespan of both the expensive differential and fluid.
As a side benefit, this kit requires an additional 450ml of oil (nearly twice as much as standard!), which helps to reduce the servicing period of the differential and also aids in temperature management.
We recommend having this kit installed by a specialist as we give this kit a 4.5/5 installation difficulty rating.
What’s Included
- Mocal high-flow electric oil pump
- Custom HEL aluminium pump mounting bracket
- Setrab Series 1 10 Row ProLine oil cooler
- Custom HEL aluminium oil cooler mounting bracket
- Preassembled HEL braided hoses with anodised aluminium fittings (includes high temperature heat sleeve where required)
- Preassembled wiring harness with fused relay
- 82°C (179.6°F) thermostat switch
- All mounting hardware (includes aluminium hose separators and adapters)
- Installation instructions
RETURNS & Warranty
Returns Policy
We want you to shop with confidence at Sansoms Specialist Parts. If you are not completely satisfied with your purchase, you may return eligible items in accordance with the policy below.
Returns must be requested within 14 days of delivery
Items must be unused, uninstalled, and in original packaging
Products must be returned in a resaleable condition
Proof of purchase is required
Custom-made, special-order, or clearance items may be non-returnable unless faulty.
How to Request a Return
Please contact our support team before returning any item. Returns sent without prior authorisation may be refused.
Email: support@sansomsspecialistparts.co.uk
Include your order number and reason for return.
Refunds
Once your return has been received and inspected, we will notify you of the outcome. Approved refunds will be processed to the original payment method within 5–10 working days.
Original shipping costs are non-refundable unless the item is faulty or incorrect.
Warranty Information
All products sold by Sansoms Specialist Parts are covered by a manufacturer’s warranty, where applicable.
Warranty coverage typically includes:
Manufacturing defects
Faults occurring under normal use
Warranty does not cover:
Incorrect installation
Wear and tear
Damage caused by misuse or modification
Track or competition use unless stated otherwise
Warranty Claims
To make a warranty claim, please contact us with:
Order number
Description of the issue
Supporting photos or videos
Claims are subject to inspection and manufacturer approval.
Important Notes
Professional installation is strongly recommended
Warranty may be void if parts are incorrectly fitted
Vehicle compatibility is the customer’s responsibility
Need Help?
If you have any questions regarding returns or warranty, our team is happy to assist.
Delivery & Stock
Delivery Options
We aim to get your performance parts to you as quickly and safely as possible.
Standard UK Delivery: 3–5 working days
Express UK Delivery: 1–2 working days (subject to availability)
International Delivery: 5–10 working days (depending on location)
All orders are carefully packaged to ensure your parts arrive in perfect condition.
Shipping Costs
Standard delivery is charged at checkout based on weight and destination
Free UK delivery on orders over £100
We offer tracked shipping so you can monitor your order every step of the way.
Stock Availability
Most parts are held in stock for immediate dispatch
Some specialist or custom parts may have longer lead times
Stock levels are updated regularly, but occasionally items may be temporarily unavailable
If a product is out of stock, we will notify you immediately and offer alternatives or an estimated delivery date.
Order Processing
Orders are typically processed within 1–2 working days
You will receive a confirmation email once your order has been dispatched
Large or heavy items may require additional handling time
Important Notes
Performance parts may require professional installation
Delivery times are estimates and may vary during peak periods
International shipments may be subject to customs or import fees
