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ARP Main Bolt Kit - W10/W11 for Gen 1 MINI

Upgrade your bottom end with ARP’s high-strength 8740 chromoly steel main studs, designed for the MINI R50 and R53 W10 and W11 engine (One, Cooper, Cooper S, JCW, GP). Provides improved clamping force, better bearing alignment, and added reliability for high-performance and boosted builds.

£189.00 GBP

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ARP  |  SKU: 26693

Delivery and Shipping

Add some general information about your delivery and shipping policies.

Delivery charges are based on weight (kgs) within the UK and Europe, International orders are based on volumetric weight and may be more than what you pay at checkout. Charges are the same when ordering online, by email or over the phone and include VAT. Items if in stock are dispatched same day (Before 2pm) and sent on a next working day service and includes insurance cover. See our main section below for more details.

Sample Shipping Costs

UK

Orders under £200 are sent by a DHL Express service that is usually a next day service and costs start from £12 depending on weight. 

Orders over £200 are sent for free by a DHL Express service that is usually a next day service

Europe and Rest of the World

For European and rest of the orders, parcels are sent by DHL and costs start from £12 up to 30kg per box. Delivery time takes between 3-7 working days depending on country. 

Please note:

Our shipping prices are occasionally subject to change. Lohen reserves the right to contact you with a shipping amendment if necessary.

The cleint is responsible for all import duites, taxes and processing fees which are payable to the carrier or carrier agent prior to delivery.

 

Returns & Refunds

Returns

Refunds are available within 7 days after delivery for products that are unused and are in original packaging. Special order goods are non-refundable. Products that are damaged in transit to or from the customer can be refunded up to 14 days after the product has been delivered.

Refunds

Products returned to us in imperfect, non-resalable condition will not qualify for a refund. Products that are faulty due to the manufacturing process are refundable under the manufacturer's warranty for a limited time specified in the manufacturer's terms and conditions. These do not apply if the product has been fitted incorrectly or misused, motorsport use could further reduce the manufacturer's warranty.

If an order is cancelled or refunded the buyer is responsible for the return of the goods to such address as directed by the supplier and is at the consumer's sole expense. This does not affect your statutory rights.

Description

Strengthen your bottom end with the ARP Main Stud Kit, engineered for the MINI R50, R52 and R53 W10 and W11 1.6L naturally aspirated and supercharged engine found in the Cooper S, JCW, and GP. Ideal for high-performance builds, this kit replaces the factory main bolts with high-strength 8740 chromoly steel studs, offering superior clamping force and improved block stability.

Designed to handle the increased stresses of high RPM, forced induction, and track use, ARP studs help maintain precise main bearing alignment and reduce the risk of cap walk or crankshaft movement under load.

Key Features:

  • Fits MINI R50 W10 (One and Cooper) and R53 W11 engine (Cooper S, JCW, GP)

  • Made from premium 8740 chromoly steel

  • Superior clamping force and fatigue strength

  • Improves block rigidity and bearing alignment

  • Ideal for high-performance, forged, and track builds

 

What's in The Box

10 x ARP M10 Bolts

10 x ARP M8 Bolts

10 x ARP M10 Washers

10 x ARP M8 Washers

1 x ARP Assembly Lubricant

Fitting Details

Lohen offers professional, in-house fitting for all products at our workshop in Eccleshall, Staffordshire, ST21 6JL. Here are the important things you need to know:

Fitting Cost - Enquire about our head swap services

Fitting Time - Enquire about our head swap services

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