This listing covers the HPS 5/16″ (8mm) ID, with 5″ and 48″ Leg Long Black 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. Keep petroleum away from standard silicone unless the hose is lined for it.
Ordering the leg long black 4-ply reinforced silicone takes a minute and the confirmation reaches you straight away.
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.
Details that matter
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- 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 Black 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: 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 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-BLK, HTSEC90032L5x48BLK
Our team checks doubtful orders by hand, so share your vehicle details and we will verify this listing against manufacturer data.
Explore more: 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
Fast dispatch matters when a vehicle is off the road, which is why we prioritize same day picking.
For safety and service guidance from outside the aftermarket, see the NHTSA vehicle safety hub.
Questions we get about this part
How do I confirm this fits?
Our parts team confirms fitment before the box is sealed. Contact us with your vehicle details and we will settle it in advance.
How fast does this ship?
Your tracking link arrives by email at label creation and stays live until delivery, so you can follow the parcel the whole way.
Can I return this part?
Parts are covered against defects for the period stated on this page, and non defect returns follow our standard returns window.
Is this checked before shipping?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.

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