The HPS 3/4″ (19mm) ID, with 4″ and 6″ Leg Long Black 4-Ply Reinforced Silicone 90 Degree Elbow Coupler Hose is available now, with fitment data on the page and a team behind it.

Silicone tolerates far more heat than standard rubber and stays flexible for many years. Keep petroleum away from standard silicone unless the hose is lined for it.
If your build is unusual, tell us and we will confirm the leg long black 4-ply reinforced against it.
The leg long black 4-ply reinforced ships protected, because a damaged part helps nobody.
Drivers choose the leg long black 4-ply reinforced here for honest specification detail and quick dispatch.
Buyers comparing the leg long black 4-ply reinforced will find the specification detail on this page rather than in a catalog footnote.
The leg long black 4-ply reinforced listed here is checked against your vehicle before dispatch.
Every leg long black 4-ply reinforced order goes through the same fitment review.
Ordering the leg long black 4-ply reinforced takes a minute and the confirmation reaches you straight away.
Details that matter
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- 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 Black 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: 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: 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-BLK, HTSEC90075L4X6BLK
Shops ordering in volume can send a full parts list and we will verify the whole job in one reply.
Browse nearby: Hoses & Fittings · HPS 1.75″ (45mm) ID, 4″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · HPS 1.5″ (38mm) ID, 6″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · full catalog
Orders placed before early afternoon usually leave our USA warehouse the same business day, with tracking emailed at label creation.
Background reading that is not trying to sell you anything: the NHTSA vehicle safety hub.
Frequently asked questions
Can you check fitment before I order?
Our parts team confirms fitment before the box is sealed. Contact us with your vehicle details and we will settle it in advance.
What are the shipping times?
Your tracking link arrives by email at label creation and stays live until delivery, so you can follow the parcel the whole way.
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.
What happens before my order ships?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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