This harness is part of the Willans Silverstone range using rotary buckles and aluminium adjusters.
Willans 6-Point Single Seater FIA Harness: FIA approved to FIA 8853-2016. Suitable for all Single Seater cars with the appropriate mountings. This harness is not suitable for use with HANS devices. If you require a HANS version, please click HERE to take you to the correct harness.
The six vehicle attachment points use 5/16" (8mm) diameter bolt fixings. These can be supplied with 3/8" (9mm) diameter holes using the dropdown below. The shoulder mountings can be supplied with 3/8" (9mm) or 7/16" (11mm) diameter bolt mountings in Type B fixing or 3/8" (9mm) or 1/4" (6mm) Type A fixing. Finally, a stitched loop option is available only if mounting to a ‘dog-bone’ fitting. The loops are available in 20, 30, 40 or 50mm sizes but please note they need to be large enough for the end of the dog-bone to pass through. Simply select the options required from the dropdowns when ordering.
Patented lightweight composite Rotary Buckle finished in satin black with a black Willans badge as standard; the badge (not the buckle) can be upgraded to Signature Red or Blue. One lap strap is permanently fixed to the right-hand lap strap. Willans super smooth Aluminium Adjusters are standard fittings on these harnesses and can be specified in Black or Blue (at additional cost).
Shoulder Straps are all 3 inch (75mm) wide with the option of 2 inch (50mm) or 3 inches (75mm) for the lap straps. 2 inch (50mm) crutch straps and the lap straps use double steel attachment lugs to give pinch plate spanner adjustment for length control of the straps. Crutch Straps are 2 inches (50mm) wide with 1 inch (25mm) wide loop one end to be passed through the ‘D’ rings on the lap straps before passing the shoulder strap down through the loop prior to connecting into the release mechanism.
Stitching thread is self-colour (same as harness colour) unless upgraded to a Signature colour using the dropdowns on the page. Shoulder pads are available in Black, Blue or Red only. Superb Willans quality throughout. Manufactured in the UK. A free Safety Hammer and Webbing Cutter is included with every order.
Key Features
The key features of this harness are shown below and above is a detailed description. If you are not sure this harness is the correct one for your requirements, CLICK HERE to view the full range of Willans Harnesses.
- Fully FIA Approved. FIA approval is for 5 years from the end of the year purchased. For example, if purchased on 1st Feb they would be approved for 11 months of the current year plus a further 5 years.
- FIA Homologation 8853:2016
- 6 bolt-in fixing points
- Single Seater and Formula Race Cars
- 3 inch (75mm) shoulder straps
- 2 inch (50mm) lap straps as standard with the option of 3 inch (75mm)
- 2 inch (50mm) crutch straps
- Standard Colours are Willans Blue, Black and Red. Signature Colours are Orange, Yellow, Green, White, Silver/Grey and British Racing Green.
- Alloy adjusters are standard equipment on shoulder straps
- Rotary quick release buckle. Composite material in satin black weighing only 176 grams.
- All six vehicle attachment points use 5/16th (8mm) diameter bolt fixings, but options are available by using the dropdowns
- A range of options are available to tailor the harness to your requirements. See Options below and use dropdowns to select your requirements.
- Beautifully presented in Willans branded box. Harnesses individually packed. Great Gift.
- Safety Hammer/Webbing Cutter: Great safety product free of charge with every order. MSA Blue Book requirement states "Belt cutter(s) must be carried on board at all times", so it's a must-have when racing or simply when you are driving day to day.
- All prices include VAT
- VAT is removed from all Export orders and orders to the Channel Islands
- Carriage is free to UK Mainland
- Carriage to other areas can be found in the delivery section below or at the checkout. We can also deliver to the USA, Australia, New Zealand, and Japan - contact us for a delivery quote
- Delivery time is as stated below
- Made to order in England

Free and Fast Delivery
Willans Harnesses are dispatched within 5 to 10 working days. When they have been manufactured to your specification, they are then dispatched free of charge* on a next day service.
When your order is dispatched, you will receive tracking information via email.
*Please note that this applies to Mainland UK only, excluding the Highlands. Deliveries are made on weekdays only.
Options
A range of options are available for your Willans Harnesses. Some of the key ones are listed here but please check the dropdowns on the page when you are ordering to be sure you specify your perfect Willans Harness:
- Webbing Colours - 8 colours are available, check the images and copy to see the different options
Thread Colours - Self Colour as standard with 9 signature colours as an option
Shoulder Pads - For added comfort, shoulder pads are available in blue, black, or red
- Nylon T Handles and Velcro to Shoulder Straps. Use dropdowns to select these options if required.
- Safety Hammer/Webbing Cutter - For use in an emergency, keeping a Webbing Cutter in your vehicle gives you extra peace of mind (Supplied Free of Charge with every order)
Shoulder Fixings
Default Type A Bolt In Fixing
Type B Bolt In Fixing
Stitched Loop Fixing
There are several options for the shoulder strap fixings on single seater harnesses:
- Fixing Type A is available with different diameter holes (standard 8mm, other sizes are no cost options; see dropdowns for exact sizes available).
- Fixing Type B is available as a no cost option with different diameter holes (see dropdowns for exact sizes available).
- Stitched loop shoulder straps are available in various sizes for use with dog-bone fittings on Single Seaters (see dropdowns for exact sizes available).
Velcro to Shoulder Straps
Velcro patches are available as an option on the shoulder straps (please use dropdown to select if required). Ideal to prevent webbing blowing about in open top sports and racing cars.
T-Handles to Shoulder Straps
Sewn in nylon T-Handles are available as an option on the shoulder straps (please use dropdown to select if required).
Rotary Buckle Centre Badge
The composite harness buckle is supplied in a satin black finish with a black Willans badge in the centre as standard. The badge (not the buckle) can be upgraded to Signature Red or Blue as an option (please use dropdown to select option required).
Webbing Colour Options
Webbing can be supplied in a range of colours for this harness. Standard colours are Willans Blue, Red, and Black. Signature colours are Orange, Yellow, British Racing Green, White, and Silver/Grey (please use dropdown to select colour required).
Thread Colour Options
The thread used to manufacture this harness can be supplied in a range of colours. The standard is self-coloured (same colour as harness ordered). Signature colours are Red, Orange, Yellow, British Racing Green, Willans Blue, Pink, White, Silver, and Black (please use dropdown to select colour required).
Willans Shoulder Pads
Three inch shoulder pads are available for this harness. Colours: Blue, Black, or Red. Please use dropdown to select colour and labels required.
Webbing Cutter and Safety Hammer

We supply free of charge this Webbing Cutter and Safety Hammer. One supplied per order.
7/16″ UNF Stress Plates
Steel stress plates with captive 7/16″ UNF nut to create suitable mounting point for Willans Harnesses. Supplied in pairs and available in standard or FIA approved versions (please use dropdown to select if required).
Technical Dimensions
Below are the Harness Dimensions for this specific Willians Harness.
Shoulder Straps
Reference A (Upper)
The measurement from the adjuster on the shoulder straps to the fixing on the vehicle - Fixed Length: 39cm
Reference B (Lower)
The measurement from the adjuster on the shoulder straps to the buckle, with the lower shoulder strap in the 'normal' (mid running) position - Fixed Length: 28cm
Reference C (Total)
The total measurement from the buckle to the fixing on the vehicle, with the lower shoulder strap in the 'normal' (mid running) position - Fixed Length: 67cm
Lap Straps
Reference G (Total)
This is the total measurement from the fixing point on one side of the car to the fixing point on the other side) - from 60 to 100cm
Crutch Straps
Reference H
This is the measurement of the crutch strap from the buckle to the fitting on the car - Fixed Length: 88cm
Customer Gallery
Click HERE to download the fitting instructions for this Willans Harness.
This Willans Harness is a safety critical product but can be fitted by a competent enthusiast or at a professional workshop.