This page lists the HPS 1/4″ (6.5mm) ID, with 5″ and 36″ Leg Long Black 4-Ply Reinforced Silicone 90 Degree Elbow Coupler Hose, including what it fits and what we check before dispatch.

Silicone tolerates far more heat than standard rubber and stays flexible for many years. Replace both the upper and lower runs while the system is open.
Our team knows the leg long black 4-ply reinforced silicone well, so ask if anything about the specification is unclear.
Stock of the leg long black 4-ply reinforced silicone is live on this page rather than estimated.
Shops order the leg long black 4-ply reinforced silicone 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 black 4-ply reinforced silicone against it.
The leg long black 4-ply reinforced silicone ships protected, because a damaged part helps nobody.
Drivers choose the leg long black 4-ply reinforced silicone here for honest specification detail and quick dispatch.
Buyers comparing the leg long black 4-ply reinforced silicone will find the specification detail on this page rather than in a catalog footnote.
Quick specs
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- Category: Universal Hose
- Price: $56.20 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
HPS 1/4″ (6.5mm) high temperature 4-ply reinforced Black silicone 90 degree elbow coupler hose with 5″ and 36″ leg meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. This HPS 1/4 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: 1/4″ (6.5mm)
Hose Outside Diameter: 5/8″ (16mm)
Leg Length: 5″ and 36″
Center Line Radius: 3/4″
Wall Thickness: 5mm +/- 0.5mm
Color: Black
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: Black
- Leg length: 5″ and 36″. 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:
- HTSEC90-025-L5x36-BLK, HTSEC90025L5x36BLK
When two options look similar, our parts team will tell you which one your vehicle actually takes.
Also worth a look: Hoses & Fittings · HPS 2.25″, 2.5″ (57mm, 63mm) ID, 6″ Leg Long Black 4-Ply Silicone 1/2″ Offset Reducer Hose · HPS 4″ (102mm) ID, 6″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · full catalog
Our warehouse team packs the way they would want their own parts to arrive.
Before you start the job, the Car Care Council maintenance tips is worth five minutes.
Questions we get about this part
What do you need to verify fitment?
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.
When will my order dispatch?
Same business day dispatch applies to orders placed before the early afternoon cutoff, with tracking that updates at every carrier scan.
What is the return policy?
Returns are handled in one reply for most cases. Keep your order confirmation, since it is the only proof of purchase we need.
What happens before my order ships?
We verify diameter and reinforcement specification on every hose order.
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