QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

MMR Performance Low-Temperature Oil Thermostat – BMW N54 & N55

Replaces the OE oil thermostat on the BMW N54 and N55 engine with a lower-opening unit, keeping oil temperature within a controlled 90–110°C range. Fits models from 2008 onwards — check the fitment table below for your specific chassis and variant.

Description

Higher power output and sustained high-load driving — particularly on track — increase the amount of heat the engine has to dissipate. The factory oil thermostat is calibrated around OE power levels, so tuned or hard-driven N54/N55 engines commonly run oil temperatures above the optimal range, reducing the oil's ability to maintain proper lubrication under load.

The MMR low-temperature thermostat lowers the regulation point so oil temperature is held between 90–110°C. It's a straightforward, bolt-in alternative to fitting a separate oil cooler system, using the existing OE thermostat housing.

Machined from T6-6061 aircraft-grade aluminium and anodised in a dark anthracite finish.

Features

• Regulates oil temperature to a 90–110°C range
• Direct replacement for the OE thermostat, fits into the existing housing
• Machined from T6-6061 aircraft-grade aluminium
• Anodised dark anthracite finish
• Complete kit — no additional parts required for installation

Fitment

Note: Suitable for model years 2008 onwards only.

Installation

Fits into the OE oil thermostat housing on the N54 and N55 engine. Installation follows the same procedure as replacing the factory thermostat.