Ferrea Single Valve Springs - Nissan R35 GT-R VR38DETT

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 1-3 business days.

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.

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 (outside of Europe) 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.

Ferrea S10137 single-spring valve springs are high-quality replacement springs made of a special alloy for the VR38DETT engine of the Nissan GT-R R35.

S10137 single spring specifications

• Spring type: Single spring

• Material: Special alloy

• Outer diameter: 25.19 mm

• Inner diameter: 18.3 mm

• Seat pressure: 90 lbs

• Open pressure: 155 lbs

• Spring rate: 165 lbs/in

• Coil Binding: 22.65 mm

• Maximum net valve lift: 11.00 mm

Compatible parts

• Titanium exhaust retainers (E11110)

• Titanium intake side retainers (E11107)

• Ferrea spring seat locations (SL1116)

• Valve locks (48 pieces) (K10102)

Available packaging