PartSmith Co. lists the HPS 1/4″ (6.5mm) ID, with 5″ and 48″ Leg Long Black 4-Ply Reinforced Silicone 90 Degree Elbow Coupler Hose with real inventory, honest specs and fast USA dispatch.

Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Route clear of heat sources and moving components.
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.
Shops order the leg long black 4-ply reinforced 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 against it.
The leg long black 4-ply reinforced ships protected, because a damaged part helps nobody.
Quick specs
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- Category: Universal Hose
- Price: $68.84 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 48″ 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 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:
- HTSEC90-025-L5x48-BLK, HTSEC90025L5x48BLK
Shops ordering in volume can send a full parts list and we will verify the whole job in one reply.
Keep shopping: 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
Stock levels shown here are live, so what you order is what is on the shelf ready to travel.
For safety and service guidance from outside the aftermarket, see the NHTSA vehicle safety hub.
Buyer questions
What do you need to verify fitment?
Share your vehicle details with our team and we cross reference this listing before dispatch. Anything doubtful gets a message from us rather than a shipment.
When will my order dispatch?
Dispatch is normally the same or next business day, and heavy items travel on freight with a booked delivery window.
What if it does not fit?
Report any transit damage with a photo and we will send a replacement or refund you. We handle the carrier claim ourselves.
Is the part inspected before dispatch?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
![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)
![HPS NPT Allen Plug Fitting [1/2 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN932_1_905b27b0-3c7d-4fa0-ad9c-55f954a9d8c0-300x300.jpg)
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M22 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_84a0bab4-582d-4dc1-a176-6237879f811f-300x300.jpg)
![HPS NPT Hex Plug Fitting [1/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN933_1-300x300.jpg)
Reviews
There are no reviews yet.