This listing covers the HPS 5/16″ (8mm) ID, with 5″ and 48″ Leg Long Blue 4-Ply Reinforced Silicone 90 Degree Elbow Coupler Hose, one of the parts our fitment desk checks most often.

Reinforcement ply count determines burst strength, which matters most on boosted applications. Use constant tension or lined clamps so the hose surface survives heat cycles.
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.
The leg long blue 4-ply reinforced listed here is checked against your vehicle before dispatch.
Every leg long blue 4-ply reinforced order goes through the same fitment review.
Ordering the leg long blue 4-ply reinforced takes a minute and the confirmation reaches you straight away.
Our team knows the leg long blue 4-ply reinforced well, so ask if anything about the specification is unclear.
Details that matter
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Blue
- Category: Universal Hose
- Price: $71.54 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
HPS 5/16″ (8mm) high temperature 4-ply reinforced Blue silicone 90 degree elbow coupler hose with 5″ and 48″ leg meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. This HPS 5/16 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: 5/16″ (8mm)
Hose Outside Diameter: 0.67″ (17mm)
Leg Length: 5″ and 48″
Center Line Radius: 3/4″
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: 5″ and 48″. 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:
- HTSEC90-032-L5x48-BLUE, HTSEC90032L5x48BLUE
When two options look similar, our parts team will tell you which one your vehicle actually takes.
Browse nearby: Hoses & Fittings · HPS 3.12″ (80mm) ID, 4″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · HPS 2.25″ (57mm) ID, 6″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · full catalog
Finished surfaces are wrapped and hardware is bagged, so the part arrives ready to install.
For neutral background on this kind of maintenance, see the NHTSA vehicle safety hub.
Common questions
How do I confirm this fits?
Send your VIN or your year, make and model and our fitment desk confirms the part against manufacturer data before it ships. The check is free and usually answered the same business day.
How long does delivery take?
Same business day dispatch applies to orders placed before the early afternoon cutoff, with tracking that updates at every carrier scan.
Is there a warranty on this?
Returns are handled in one reply for most cases. Keep your order confirmation, since it is the only proof of purchase we need.
How do you protect it in transit?
We verify diameter and reinforcement specification on every hose order.

![HPS Push-on Hose End to AN Female Fitting [120 Degree] [-8] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/150-120_1_b7ae2165-4f89-472c-a9fc-72ba3e09b875-300x300.jpg)
![HPS NPT Allen Plug Fitting [1/16 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN932_1-300x300.jpg)
![HPS AN Male to NPT Adapter Fitting [Straight] [-8 to 3/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_a94183bf-0c19-4e60-a94a-8eee322012ab-300x300.jpg)
Reviews
There are no reviews yet.