Designed specifically for Ford Sierra Sapphire Cosworth 4WD models fitted with the original dump valve, this PAFCLASSIC® Silicone Boost Hose Kit replaces ageing factory rubber hoses with reinforced silicone components engineered to withstand the demanding environment of a turbocharged Cosworth engine.
The kit includes 3 silicone boost hoses manufactured from premium 3-ply silicone reinforced with polyester textile fibres. This advanced construction delivers outstanding resistance to boost pressure, high operating temperatures, and mechanical stress, helping maintain a secure and efficient turbocharging system during both everyday driving and more spirited use.
With an operating temperature range from -50°C to +180°C, these hoses retain their strength and flexibility even under extreme conditions. Designed as direct replacements for the original components, they provide straightforward installation while giving the engine bay a cleaner, more refined appearance.
Manufactured in England to exacting standards, this kit combines precise fitment, premium materials, and long-term durability, making it an excellent upgrade for restored vehicles, cherished classics, and enthusiast-owned Cosworth models.
Technical Specifications
- Compatibility: Ford Sierra Sapphire Cosworth 4WD (with original dump valve)
- Type: Silicone Boost Hose Kit
- Contents: 3 silicone hoses
- Construction: 3-ply silicone reinforced with polyester textile fibres
- Operating Temperature: -50°C to +180°C
- Installation: Direct replacement
- Manufactured in: England
Customisation
AVAILABLE COLOURS
- Black
- Blue
- Red
- Green
- Orange
- White
Please specify your preferred colour when placing your order.
PAFCLASSIC® Logo
The kit is available in two finish options:
- With PAFCLASSIC® Logo
- Without PAFCLASSIC® Logo
STAINLESS STEEL CLIP KIT
You can choose to have these hoses supplied:
- With Stainless Steel Clip Kit
- Without Clip Kit
Complementary Products
Matching silicone radiator hose kits and silicone ancillary hose kits for the Ford Sierra Sapphire Cosworth 4WD are also available to complete the refurbishment and customisation of your engine bay. See references PAFSIECOS4WDRAD and PAFSIECOSAWD.
Manufacturing & Lead Time
Each kit is manufactured exclusively to order.
- Manufactured in: England
- Average production time: 10 working days
Why Choose PAFCLASSIC®?
A turbocharged Cosworth engine relies on a boost system capable of maintaining consistent pressure despite repeated heat cycles and demanding operating conditions. PAFCLASSIC® silicone boost hoses are reinforced to provide greater durability than original rubber hoses, helping reduce the effects of ageing while maintaining reliable sealing and long-term performance.
Developed specifically for the Ford Sierra Sapphire Cosworth 4WD with the original dump valve, this kit combines precision engineering, premium British manufacturing, and customisation options to complement one of Ford's most celebrated performance models. Whether you're restoring an original example or maintaining a regularly driven classic, PAFCLASSIC® products are designed to deliver reliability, quality, and a professional engine bay finish.
