This listing covers the HPS 3/4″ (19mm) ID, with 4″ and 6″ Leg Long Blue 4-Ply Reinforced Silicone 90 Degree Elbow Coupler Hose, one of the parts our fitment desk checks most often.

Clamp choice matters: constant tension or lined clamps protect the hose surface over heat cycles. Use constant tension or lined clamps so the hose surface survives heat cycles.
Our team knows the leg long blue 4-ply reinforced well, so ask if anything about the specification is unclear.
Stock of the leg long blue 4-ply reinforced is live on this page rather than estimated.
Shops order the leg long blue 4-ply reinforced from us in volume because the data on the page is accurate.
If your build is unusual, tell us and we will confirm the leg long blue 4-ply reinforced against it.
The leg long blue 4-ply reinforced ships protected, because a damaged part helps nobody.
Drivers choose the leg long blue 4-ply reinforced here for honest specification detail and quick dispatch.
Buyers comparing the leg long blue 4-ply reinforced will find the specification detail on this page rather than in a catalog footnote.
Key details
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Blue
- Category: Universal Hose
- Price: $36.68 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
HPS 3/4″ (19mm) high temperature 4-ply reinforced Blue silicone 90 degree elbow coupler hose with 4″ and 6″ leg meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. This HPS 3/4 inch silicone elbow can be easily trimmed to replace OEM or aftermarket rubber heater hose.
Unlike the traditional rubber heater hose elbow being sold in the auto parts store, HPS performance silicone 90 degree bend elbow coupling hose is designed and engineered to meet high performance requirements specified in various industry standards, therefore make it great for marine and industrial use, heater hoses, supercharger aftercoolers, and air-to-water heat exchangers.
The flexible line makes maneuvering the hose in the engine bay a quick and pain-free process.
Technical Specification
Product Type: Silicone 90 Degree Elbow Coupler Hose
Temperature Range: -65 deg. F to + 350 deg. F (177 deg. C)
Reinforced Layer: 4-ply polyester
Hose Inside Diameter: 3/4″ (19mm)
Hose Outside Diameter: 1-1/8″ (28mm)
Leg Length: 4″ and 6″
Center Line Radius: 1″
Wall Thickness: 5mm +/- 0.5mm
Color: Blue
UV and ozone resistant
Remark: Silicone hose is NOT compatible with fuel or oil.
Silicone hose is compatible with water or anti-freeze such as coolant.
- Material: 4-Ply Reinforced Silicone
- Color: Blue
- Leg length: 4″ and 6″. Can be easily trimmed to replace OEM or aftermarket rubber heater hose.
- Made of High Temperature 4-ply Reinforced Silicone (Maximum temperature rating 350F)
- Meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications
- UV and ozone resistant. Silicone hose is NOT compatible with fuel or oil
- Great for marine and industrial use, custom turbo or intercooler piping fabrication, DIY intake or radiator cooling system
Application:
Universal Fit
Remark:
Installation: Compatible with Water/Coolant ONLY, Not for Fuel/Oil
Product Content:
- 1 x 90 Degree Elbow Coupler Hose
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- HTSEC90-075-L4X6-BLUE, HTSEC90075L4X6BLUE
Message us the vehicle details and we will confirm compatibility, including anything unusual about your build.
Continue browsing: Hoses & Fittings · HPS 4″ (102mm) ID, 6″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · HPS 4″ (102mm) ID, 4″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · full catalog
Dispatch is quick because the inventory is real, and you receive tracking the moment the label prints.
For safety and service guidance from outside the aftermarket, see the NHTSA vehicle safety hub.
Common questions
Is fitment guaranteed on this listing?
The application text on this page lists what the part serves. If your vehicle is not clearly covered, send the VIN and we will rule on it before you pay.
How quickly can I get this?
Dispatch is normally the same or next business day, and heavy items travel on freight with a booked delivery window.
What happens if it arrives damaged?
A straightforward returns window applies from delivery. Keep the original packaging until you have test fitted the part and contact support for a fast exchange or refund.
Is this checked before shipping?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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