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Welcome to Sleeman and Hawken

Sleeman and Hawken have been trading in Devon for over 50 years with marine and industrial diesel engines plus related products. We have an experienced team of parts and engine sales personnel available to assist you to identify and locate your requirements. We are appointed dealers for spare parts and engine sales in industrial and marine sectors covering Lister Petter spares, Lister Petter engines, Lister Petter marine, Lister Petter generating sets, Sabb, John Deere, Lombardini, Kohler, Hatz, Yanmar and Mase generators. Click on other manufactures and products in our supplier page links you will find we have direct accounts and therefore competitive pricing from many other suppliers..

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Latest News

30th October 2017

This is to formally announce and inform you that, with immediate effect, Lister Petter IP, Brand and right to manufacture the Lister Petter Products has been acquired by Sleeman & Hawken Limited.

Sleeman & Hawken have been associated with Lister Petter for over 50 years and we feel proud on having acquired the iconic British brand which completed its 150th anniversary this year. Lister Petter Products have earned a reputation for reliability, dependability and value for money over the years.

Lister Petter Power Systems Limited is a 100% subsidiary of Sleeman & Hawken Limited and has been incorporated to manufacture and supply the Lister Petter Products through established OEMs, distributors and other channels to market.

The Lister Petter Power Systems manufacturing facility shall continue at Hardwicke in Gloucestershire, UK with a new management team in place, whilst the Head Office will be at Teignmouth in Devon, UK.

Please direct your enquiries for Lister Petter Products to:


Please direct your enquiries for Lister Petter Genuine and Approved Spare Parts to:


We value your association with Lister Petter over the years and we assure you of improved product quality and lead times from hereon.

We look forward to meeting you in person in the near future.

Assuring you of our best attention at all times.

Yours sincerely

Keith Mason

Keith Mason
Managing Director
For and on behalf of Sleeman & Hawken Limited

1st July 2015

We are very pleased to announce that Lister Petter have awarded Sleeman & Hawken Ltd. the sole responsibility for the worldwide fulfilment of all Lister Petter supplies of genuine parts.

As such, we will be supplying parts direct from our recently expanded distribution facility, and will be taking full responsibility for the whole ordering process and will be invoicing customers directly for all supplies.

We look forward to getting stuck in to this exciting task, and hope to be able to offer you an improved and efficient quality of service, that hopefully our current customers are already used to.

Please do not hesitate to get in touch with us if you have any questions, by email is preferred on sales@sleeman-hawken.co.uk

You can read the full statement from Lister Petter as below.

We look forward to hearing from you.

Keith, Sean and Ryan Mason, and the rest of the Sleeman Team.


Important Change to Lister Petter Parts Distribution – July 2015


Please be advised that from 1st July 2015 Sleeman and Hawken Limited will assume full responsibility for the worldwide fulfilment of all Lister Petter supplies of genuine parts. 

Sleeman & Hawken are known to many of you having been involved in the distribution of Genuine Lister Petter parts since the early 1950’s. They have established an enviable reputation for the collective knowledge of their team for the whole range of Lister Petter engines and the support they offer for both current and historic engines.

From the 1st July Sleeman & Hawken will be supplying parts direct from their recently expanded distribution facility in the UK.  They will be your source for all new orders which should be addressed to Sleeman and Hawken.

Lister Petter Distribution Europe (LPDE) will contact you to discuss your existing orders.

They will be taking full responsibility for the whole ordering process and will be invoicing you directly for all supplies.

Our standard parts email partsquotes@listerpettergroup.com will be answered by parts specialists at Sleeman. 


They can be contacted direct at:

Lister Petter Parts Fulfilment

Sleeman & Hawken Ltd

Tel: +44 1626 778 266

            Email: partsquotes@listerpettergroup.com


For any further information please feel free to contact me

Pat Comer

Lister Petter


Tel: +44 7867 483204


Special Offers

We always have very competitive prices on Lister Petter marine engines and spares, give us a call.



We use our Ebay shop to advertise our unique and unrivalled 'vintage stock' that we have accumlated over the years, it really is a Lister Petter 'Aladdin's Cave'!

We also list modern consumables such as filters and belts.

Prices include VAT and free UK mainland shipping.

Click on the Ebay logo above, or on the below link, and grab yourself a bargain!:



Social Media @ Sleeman Hawken