Description
Product Description
Our uprated valve for the Suzuki Swift Sport 1.4 ZC33S & 1.0 Boosterjet (also fits the Vitara 1.0 & 1.4 BoosterJet, providing the engine cover is removed) has been expertly designed and manufactured in the UK, meaning we can provide another industry leading valve for your vehicle. For the Hybrid version, you will need FMDV47.
Highlights:
- Utilising world leading springs for more precise operation and consistency
- All internal and external components have been made in the UK, ensuring top quality, and offering a valve with faster response times.
- The piston uses heat stabilised Viton O-rings
- Lubricated with high temperature Mobil1 grease to ensure a long life with minimal wear and very long service intervals
- A super durable and responsive aluminium piston
- Fully serviceable and rebuildable in minutes
- Available in anodised black
- Unlike other valves on the market, ours produces no check engine lights (EML)
- Covered by the unique Forge Lifetime Warranty*



The Forge Motorsport atmospheric valve is more than just a replacement for the OE diaphragm operated bypass valve – Part No.18119-65H70. Our valve offers serviceability, rapid response, great sound, and can be uprated to your tuning needs.

In The Box:
1 x FMDV21 Valve
1 x 34mm P Clip
1 x 4mm Vacuum Tube
1 x Custom Silicone Hose
1 x Blanking Plug
2 x Cable Tie
2 x Bracket
2 x 32mm Hose Clamps
2 x Allen Cap Bolts
2 x Washers
1 x Nyloc Nut
1 x Forge Sticker
We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner
Check out our video instructions to help you with the installation!
Check your vehicle compatibility: Click here
Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.
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Compatible Vehicles
Instructions
Suzuki Swift & Vitara (1.0 & 1.4 BoosterJet & Sport) Dump Valve
Warranty
10 Year Warranty Information
The majority of Forge Motorsport products come with a limited 10 Year Warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.
For further information, please call our customer service team on +49(0)3222/1097-308 or email info@forgemotorsport.eu.
Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.
This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.
Shipping
European Shipping
We ship to selected EU countries as displayed during the checkout process.
Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and your destination.
Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact us if you require any more information via our contact page.
We reserve the right to change the delivery service and our shipping providers at any time.
Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper, however we may be able to assist in some cases.
FAQ's and other info can be found here.
Manufacturer & EU Contact Details
Manufacturer
Company Name: Forge Motorsport
Address: Unit 1A, Ashville Trading Estate, Gloucester, GL2 5EU, United Kingdom
E-Mail: info@forgemotorsport.co.uk
Phone: +44 1452 380999
EU Responsible Person
Company Name: Milltek Sport GmbH
Address: Gottlieb-Daimler-Str. 1-3, 53520 Meuspath
E-Mail: info@millteksport.de
Phone: +49 (0) 3222 1097308
Expert Answers
Hi , I have this bov not fitted yet and your induction kit. Will i have to change the spring ? It is not remapped. How would i know if it did need changing? Thank you for any advise.
No need to change the valve spring, the fitted spring (green colour code) is sufficiently string enough for stock, stage 1, and stage 2 level mapped engines. If you ever go as big as a stage 3 map you may require the stronger spring option (FMDVSU110-yellow) but this will depend on the power/pressure generated by the stage 3 turbo install, trial and error applying to stage 3 level tuning.
Is it a spatial or mechanical reason why it doesn’t fit the hybrid version?
hello , we have a version available for the HYBRID . The product code is FMDV47
Hola, me gustaría saber el muelle que trae de serie la válvula que venden, muchas gracias un saludo!
Hola
El resorte instalado en la válvula es un resorte verde.
Hello
The spring fitted to the valve is a green spring.
What's the shipping weight?
Hi Sebastian,
it is 0.5kg
Bonjour, Je souhaiterais savoir si cette soupape (Suzuki Vitara 1.4 Turbo) décharge bien vers l'extérieur pour avoir le beau bruit de décharge. Cordialement. Thierry Lefèvre
Bonjour
Oui, ce produit émet un très bon son de décharge, qui peut être entendu clairement.
Hello
Yes this product does give off a very nice discharge sound, which can be heard clearly.
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