This listing covers the HPS 3/4″ (19mm) ID, with 5″ and 12″ Leg Long Black 4-Ply Reinforced Silicone 90 Degree Elbow Coupler Hose, one of the parts our fitment desk checks most often.

Silicone tolerates far more heat than standard rubber and stays flexible for many years. Route clear of heat sources and moving components.
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.
Our team knows the leg long black 4-ply reinforced well, so ask if anything about the specification is unclear.
Stock of the leg long black 4-ply reinforced is live on this page rather than estimated.
What you are buying
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- Category: Universal Hose
- Price: $53.62 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 5″ and 12″ 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: 5″ and 12″
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: 5″ and 12″. 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-L5X12-BLK, HTSEC90075L5X12BLK
Our fitment desk exists precisely for the listings where the specification is easy to misread.
More in this department: 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.
Independent information on this topic lives at the Car Care Council maintenance tips.
Before you order
What do you need to verify fitment?
Our parts team confirms fitment before the box is sealed. Contact us with your vehicle details and we will settle it in advance.
How long does delivery take?
We ship from a USA warehouse with quick dispatch, and delivery estimates appear at checkout once you enter your address.
Can I return this part?
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.
What quality checks does this get?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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