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You are here: Home > HPS Silicon Hoses By Sizes > 4 1/4" (108mm) Silicone Hoses

HPS High Temp Reinforced 4.25" (108mm) Silicone Hoses
HPS 4.25" Silicone Hoses feature 4-ply reinforced high temperature material, for which meet or exceed SAEJ20 Standard. HPS 108mm Silicon Hoses are used by professionals in industries such as high performance racing vehicles, commercial truck and bus, Marine, agricultural and off highway vehicles, turbo diesel, food and beverage, and general manufacturing industries.

HPS 4.25" silicone hoses are available in straight coupler and reducer coupler hose. HPS Stainless Steel T-Bolt Clamps are available to match with the 4.25" silicone hoses. In order to meet the high demand and shorten the turnaround time, up to 90% of HPS silicone hose is instock and ready to ship or pickup from HPS Silicone Hoses Authorized Dealers .

Features
HPS 4.25" inch silicone hoses are made of 4-ply reinforced and knitted premium polyester fabric with high temperature silicone rubber, engineered for extreme temperature (- 65 deg. F to + 350 deg. F) and various pressure ranges where high performance levels are required.

Silicone hose is NOT compatible with fuel or oil.
Silicone hose is compatible with Coolant.

HPS 4.25" (108mm) High Temp 4-ply Reinforced Silicone Coupler Hoses Black / Blue

HPS High Temperature 4-ply Reinforced Performance Silicone Coupler Hoses Black Blue Silicon Coupling

SKU Inside Diameter Length Reinforced Layer Color MSRP US$
HTSC-425 4 1/8" (108mm) 3" 4-ply Black , Blue $18.00
HTSC-425-L4  4 1/4" (108mm) 4" 4-ply Black , Blue $24.50

HPS 4.25" (108mm) High Temp 4-ply Reinforced Reducer Coupler Silicone Hoses Black / Blue

HPS 4-ply reinforeced high temp reducer coupler Silicone Hoses black blue

SKU Hose Inside Diameter Length Reinforced Layer Color MSRP US$
HTSR-350-425-L5 3 1/2" > 4 1/4" (89mm > 108mm) 5" 4-Ply Black , Blue $80.00
HTSR-400-425-L5 4" > 4 1/4" (102mm > 108mm) 5" 4-Ply Black , Blue $88.00
HTSR-425-450-L5 4 1/4" > 4 1/2" (108mm > 114mm) 5" 4-Ply Black , Blue $98.00

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HPS 4-ply Reinforced High Temp 4.25 inch 108mm Silicone Coupler Hose Silicon Coupling Black
HPS 4-Ply Reinforced 4.25" (108mm) Straight Silicone Hose Coupler Black
MSRP: $18.00

SKU: HTSC-425-BLK

HPS 4.25" Silicone Coupler Hose Black High Temp 4-ply Reinforced Meet or Exceed SAEJ20 Standard. HPS 108mm silicon hoses with Premium Quality Fabric engineered for extreme temperature and high pressure boost. Great for turbo charged application
HPS 4-ply Reinforced High Temp 4.25 inch 108mm Silicone Coupler Hose Silicon Coupling Blue
HPS 4-Ply Reinforced 4.25" (108mm) Straight Silicone Hose Coupler Blue
MSRP: $18.00

SKU: HTSC-425-BLUE

HPS 4.25" Silicone Coupler Hose Blue High Temp 4-ply Reinforced Meet or Exceed SAEJ20 Standard. HPS 108mm silicon hoses with Premium Quality Fabric engineered for extreme temperature and high pressure boost. Great for turbo charged application
HPS 4-ply Reinforced High Temp 4.25 inch 108mm x 4 inch Length Silicone Coupler Hose Silicon Coupling
HPS 4-Ply Reinforced 4.25" (108mm) Silicone Hose Coupler 4" Long Black
MSRP: $24.50

SKU: HTSC-425-L4-BLK

4.25" Silicone Coupler Hose Black High Temp 4-ply Reinforced Meet or Exceed SAEJ20 Standard. HPS 108mm silicon hoses with Premium Quality Fabric engineered for extreme temperature and high pressure boost. Great for turbo charged application
HPS 4-ply Reinforced High Temp 4.25 inch 108mm x 4 inch Length Silicone Coupler Blue Hose Silicon Coupling
HPS 4-Ply Reinforced 4.25" (108mm) Silicone Hose Coupler 4" Long Blue
MSRP: $24.50

SKU: HTSC-425-L4-BLUE

4.25" Silicone Coupler Hose Blue High Temp 4-ply Reinforced Meet or Exceed SAEJ20 Standard. HPS 108mm silicon hoses with Premium Quality Fabric engineered for extreme temperature and high pressure boost. Great for turbo charged application
HPS 3.5 - 4.25 inch (89mm - 108mm) Silicone Hose Reducer Coupler with 5 inch Length Black
HPS 3.5" - 4.25" (89mm - 108mm) Silicone Hose Reducer Coupler with 5" Length Black
MSRP: $80.00

SKU: HTSR-350-425-L5-BLK

HPS 3 1/2" > 4 1/4" 4-Ply Reinforced Silicone Hose Reducer with 5" Length Black meet or exceed SAEJ20 Standard.HPS 89mm > 108mm Silicon Reducing coupler is great for race car fabrication, custom turbo, intercooler piping, supercharger, DIY intake, road racing, drifting, sand rail or drag racing.
HPS 3.5 - 4.25 inch (89mm - 108mm) Silicone Hose Reducer Coupler with 5 inch Length Blue
HPS 3.5" - 4.25" (89mm - 108mm) Silicone Hose Reducer Coupler with 5" Length Blue
MSRP: $80.00

SKU: HTSR-350-425-L5-BLUE

HPS 3 1/2" > 4 1/4" 4-Ply Reinforced Silicone Hose Reducer with 5" Length Blue meet or exceed SAEJ20 Standard.HPS 89mm > 108mm Silicon Reducing coupler is great for race car fabrication, custom turbo, intercooler piping, supercharger, DIY intake, road racing, drifting, sand rail or drag racing.
HPS 4 - 4.25 inch (102mm - 108mm) Silicone Hose Reducer Coupler with 5 inch Length Black
HPS 4" - 4.25" (102mm - 108mm) Silicone Hose Reducer Coupler with 5" Length Black
MSRP: $88.00

SKU: HTSR-400-425-L5-BLK

HPS 4" > 4 1/4" 4-Ply Reinforced Silicone Hose Reducer with 5" Length Black meet or exceed SAEJ20 Standard.HPS 102mm > 108mm Silicon Reducing coupler is great for race car fabrication, custom turbo, intercooler piping, supercharger, DIY intake, road racing, drifting, sand rail or drag racing.
HPS 4 - 4.25 inch (102mm - 108mm) Silicone Hose Reducer Coupler with 5 inch Length Blue
HPS 4" - 4.25" (102mm - 108mm) Silicone Hose Reducer Coupler with 5" Length Blue
MSRP: $88.00

SKU: HTSR-400-425-L5-BLUE

HPS 4" > 4 1/4" 4-Ply Reinforced Silicone Hose Reducer with 5" Length Blue meet or exceed SAEJ20 Standard.HPS 102mm > 108mm Silicon Reducing coupler is great for race car fabrication, custom turbo, intercooler piping, supercharger, DIY intake, road racing, drifting, sand rail or drag racing.
HPS 4.25 - 4.5 inch (108mm - 114mm) Silicone Hose Reducer Coupler with 5 inch Length Black
HPS 4.25" - 4.5" (108mm - 114mm) Silicone Hose Reducer Coupler with 5" Length Black
MSRP: $98.00

SKU: HTSR-425-450-L5-BLK

HPS 4.25" > 4.5" 4-Ply Reinforced Silicone Hose Reducer with 5" Length Black meet or exceed SAEJ20 Standard.HPS 108mm > 114mm Silicon Reducing coupler is great for race car fabrication, custom turbo, intercooler piping, supercharger, DIY intake, road racing, drifting, sand rail or drag racing.
HPS 4.25 - 4.5 inch (108mm - 114mm) Silicone Hose Reducer Coupler with 5 inch Length Blue
HPS 4.25" - 4.5" (108mm - 114mm) Silicone Hose Reducer Coupler with 5" Length Blue
MSRP: $98.00

SKU: HTSR-425-450-L5-BLUE

HPS 4.25" > 4.5" 4-Ply Reinforced Silicone Hose Reducer with 5" Length Blue meet or exceed SAEJ20 Standard.HPS 108mm > 114mm Silicon Reducing coupler is great for race car fabrication, custom turbo, intercooler piping, supercharger, DIY intake, road racing, drifting, sand rail or drag racing.