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Ducati 125, 175, 250, 350, 450 Regulator Rectifier - RR163

Ducati 125, 175, 250, 350, 450 Regulator Rectifier - RR163
Ducati 125, 175, 250, 350, 450 Regulator Rectifier - (RR163)Regulator Rectifier connector - (RR163)Regulator Rectifier connector cables - (RR163)

For UK Sales please contact our UK distributor - contact details below

For International Sales please call us direct if you wish to purchase.

Please purchase this part via our UK Distributor Lacey Ducati:
Click here for website | Tel: 01597 870 444

Our regulator/rectifiers MUST NOT be used with Lithium-ion batteries
CLICK HERE for important information regarding battery types to use with our Regulator Rectifiers.
Wire colours: 2 x yellow | 1 x green | 1 x red | 1 x brown | 1 x blue

Regulator Rectifier Fits:

Ducati:125, 175, 250, 350, 450


  • Switchable 6v or 12v with battery charge indicator output - Cut blue wire for 12v use, leave intact for 6v use.
  • Specifically designed for Ducati singles using the original 40w/60w alternator or when supplied with our complete kits with 120w output.
  • STK-160 / STK-163 - Complete alternator kit - see related products below.
  • STK-161 / STK-164 - Complete alternator ignition kit- see related products below.
  • MOSFET circuit type for maximum efficiency.
  • Hole spacing 90mm and low profile casing depth of 20mm allows direct fitment for most models under the seat.

Click the following link to download fitting instructions:
Download Instructions


  • Road bike components - one year from the date of purchase
  • Off-road bike components - six months from the date of purchase
  • Race bike components - no warranty in line with industry practice
  • Any warranty does not cover defects due to abuse, misuse, improper installation or modification.


If any items were damaged in transit, we ask that you report it to us within 7 working days. On their return they can be replaced or a refund issued via your original payment method.

Faulty on arrival

If your items are faulty on arrival, you should inform us within 14 days of delivery. Items should be returned in their original packaging when possible with a copy of original documentation. Once we have verified the fault, we will issue a replacement or full refund to you via your original payment method.

Items faulty in warranty period

If any of your purchases develop a fault within its warranty period it will need to be returned. Once the fault has been verified, a repair or exchange of goods will be issued. If goods are found to be in good working order a testing/administration charge of 15 + VAT and return postage will be made to the customer.

Items ordered in error

If an item has been ordered in error, you should inform us within 14 days of delivery. We will not accept returned goods without prior consent except under guarantee. A minimum restocking/administration charge of 5 + VAT will be made on returned goods.

Returns We want you to be happy with your purchase from Electrex World Limited however there may be certain instances when products may need to be returned.

International Returns

International returns must be marked as 'Return - Failed Sale on any customs documentation. If there are any customs fees to pay, we will deduct these from your refund/credit.


  1. All returns must be accompanied by a copy of the original invoice and a completed returns form which can be downloaded using the following link:
  2. Returns take approximately five business days to process upon receipt of the item.
  3. We are not responsible for the loss or damage of items during their return. Please note that the customer has a duty of care whilst the goods are in their possession and that they should be thoughtfully packaged for the return shipment.
  4. Buyer is responsible for any shipping charges when returning the item.
  5. When fitting electrical parts these can be damaged by the same faulty electrical system that caused the initial failure and in such circumstances these parts cannot be returned for refund.
  6. No refund can be given If the item is out of warranty, if the item is within warranty but has been subjected to conditions beyond their specification or the item has been fitted/used.

Return Address

Electrex World Limited Units 43-46 Vanalloys Business Park Stoke Row Oxfordshire RG9 5QW

2006-2016 Electrex World Ltd. All rights reserved. Home | Terms & Conditions

Registered in England & Wales Company Registration number 04306310. VAT number 785 299 174.

Red - Battery +12v | Green - Battery -12v and earth | Blue - Pick-up | Yellow - HT-coil

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