KAV motorsport +5% Alternator Pulley - R53 Cooper S

  • £51.49
  • (FREE UK Delivery)
  • RRP £56.57
Item in Stock | Usually dispatched within 24 hours
  • Increase Alternator Life
  • Increase in BHP - Less stress on Belt due to increase Efficiency
  • Allows you to Run a Higher Rev Limit for More Performance


The increased size +5% BMW mini alternator pulley form kav motorsport for the R53 cooper S helps to extend the life of your alternator after fitting such modifications as the Kav Motorsport reduced size super charger Pulley and the Kav motorsport enlarged crank pulley.

The pulley prevents the alternator from being span too quickly reducing the life span of the alternator.  It also helps to reduced the amount of stress applied to the belt causing it to wear and affect the BHP figures. The +5% pulley is manufactured from mild steel and has a galvanized surface finish to protect it form the elements.

If you want to use your standard size OEM belt but run a reduced size super charger pulley From 11% - 15% then the +5% alternator pulley will allow you do do this.

If you require a custom size for example +6% or +7% alternator pulley please just drop us an e mail.

Just like the Reduced size super charger pulleys the Kav motorsport alternator pulley also comes with a lifetime warranty and is manufactured to the following standards. (ISO 9001:2008 and ISO 14001:2004).


 At PRS Racing we don't want to charge any more than is necessary for the postage hence we charge by the weight of each product, helping to ensure cost effective shipping prices.
The following prices are based around quotes and can be subject to change. If this is the case PRS Racing reserve the right to contact you with any shipping amendments prior to shipping of your products to ensure 100% customer satisfaction. All prices are INCLUSIVE of VAT.

UK Delivery
0 - 0.49kg £1.99
0.5 - 0.99 kg £2.99
1kg - 2.99kg £5.00
3kg + (£10.50)

European Delivery
0 - 0.49kg £4.99
0.5 - 0.99 kg £5.99
1kg - 2.99kg £6.99
3kg + £20 (Weight Dependent)

Rest of World Delivery
0 - 0.49kg £9.99
0.5 - 0.99 kg £12.99
1kg - 2.99kg £14.99
3kg + £25.00 (Weight Dependent)

All Parcels are shipped with a tracking number to ensure you know when to expect your order. If you have supplied us with a contact number or e mail, you can txt to re arrange the delivery time and date

PRS are committed to keeping a large stock of goods, however we cannot always guarantee that all items will be in stock at time of purchase. If your item is not in stock we will contact you informing you when to expect your item.

PRS cannot be held liable for any reasonable or unavoidable loss or damage suffered as a result of a delay in delivery.

Please note if you are using paypal as your payment method and a refund is required a small fee of 20p will be deducted form the initial purchase price.