The Ford Sierra Sapphire Cosworth 4WD remains one of the most iconic performance cars of the 1990s, and maintaining a dependable boost system is essential to preserving its character and performance. Developed for models fitted with the original dump valve, this PAFCLASSIC® Silicone Boost Hose Kit replaces ageing factory hoses with a stronger, longer-lasting alternative.
The kit comprises 3 high-performance silicone boost hoses manufactured from premium 3-ply silicone reinforced with polyester textile fibres. This durable construction is engineered to withstand high boost pressures, elevated engine bay temperatures, and the repeated thermal cycling associated with turbocharged Cosworth engines, ensuring dependable operation for years to come.
Designed for precise OEM-style fitment, the hoses install as direct replacements with no vehicle modifications required. They are equally suited to original, carefully restored examples and enthusiast-owned performance cars, while adding a cleaner, more refined appearance beneath the bonnet.
Manufactured in England, every PAFCLASSIC® hose kit is produced to a high standard of quality and is available in a selection of colours, allowing you to personalise your engine bay without compromising authenticity or reliability.
Technical Specifications
- Compatibility: Ford Sierra Sapphire Cosworth 4WD
- Configuration: Compatible 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
- Resistance: Heat, boost pressure, and age-related deterioration
- 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 enhancement of your engine bay. See reference: PAFSIECOSAWD & PAFSIECOS4WDRAD
Manufacturing & Lead Time
Each kit is manufactured exclusively to order.
- Manufactured in: England
- Average production time: 10 working days
Why Choose PAFCLASSIC®?
Original rubber boost hoses inevitably deteriorate over time, becoming less flexible and more susceptible to cracking, expansion, and boost leaks under the demanding conditions of a turbocharged engine. PAFCLASSIC® reinforced silicone hoses are engineered to retain their strength, flexibility, and sealing performance even after years of heat exposure and repeated pressure cycles.
Created specifically for the Ford Sierra Sapphire Cosworth 4WD with the original dump valve, this boost hose kit combines authentic fitment, premium British manufacturing, and customisation options for enthusiasts who value reliability without compromising originality. Whether maintaining a cherished collector's car or ensuring dependable performance on the road, PAFCLASSIC® products are built to meet the expectations of discerning Cosworth owners.
