The HPS 2.5″, 2.75″ (63mm, 70mm) ID, 3″ Long Black 4-Ply Reinforced Silicone 1/2″ Offset Reducer Coupler Hose is ready to ship today, with the paperwork and specs that back it up.

Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Re check clamp torque after the first few heat cycles.
Ordering the 3 long black 4-ply reinforced takes a minute and the confirmation reaches you straight away.
Our team knows the 3 long black 4-ply reinforced well, so ask if anything about the specification is unclear.
Stock of the 3 long black 4-ply reinforced is live on this page rather than estimated.
Shops order the 3 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 3 long black 4-ply reinforced against it.
The 3 long black 4-ply reinforced ships protected, because a damaged part helps nobody.
Drivers choose the 3 long black 4-ply reinforced here for honest specification detail and quick dispatch.
Details that matter
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- Category: Universal Hose
- Price: $40.16 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
HPS 2-1/2″, 2-3/4″ (63mm, 70mm), 3″ Long High Temp 4-ply Reinforced Black Silicone Offset Reducer Coupler Hose meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. HPS performance silicone Offset Reducer Coupler Hose is designed and engineerd to meet high performance requirements specified in various industry standards, therefore make it great for marine and industrial use, custom turbo or intercooler piping fabrication, DIY intake or radiator cooling system.
Technical Specification
Product Type: Silicone Offset Reducer Coupler Hose
Temperature Range:- 65 deg. F to + 350 deg. F (177 deg. C)
Reinforced Layer: 4-ply
Hose Inside Diameter: 2.5″, 2-3/4″ (63mm, 70mm)
Hose Outside Diameter: 2.87″, 3.12″ (73mm, 80mm)
Hose Length: 3″
Offset from the centers: 1/2″
Wall Thickness: 5mm (+/- 0.5mm)
Color: Black
UV and ozone resistant
Remark: Silicone hose is NOT compatible with fuel or oil.
- Material: 4-Ply Reinforced Silicone
- Color: Black
- Made of High Temperature 4-ply Reinforced Silicone
- Meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications
- Great for marine and industrial use, custom turbo or intercooler piping fabrication, DIY intake or radiator cooling system
- UV and ozone resistant
- Silicone hose is NOT compatible with fuel or oil
Application:
Universal Fit
Remark:
Installation: Compatible with Water/Coolant ONLY, Not for Fuel/Oil
Product Content:
- 1 x Offset Reducer Coupler Hose
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- HTSOR-250-275-BLK, HTSOR250275BLK
Fitment questions get answered by people who work with these parts daily, usually the same business day.
Explore more: Hoses & Fittings · HPS 1.5″ (38mm) ID, 4″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · HPS 1.25″ (32mm) 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.
Further reading from a neutral source: the fuel economy maintenance guidance.
Buyer questions
What do you need to verify fitment?
We verify every doubtful order by hand. Give us the year, make, model and engine option and we will confirm compatibility in one reply.
What are the shipping times?
Orders placed before early afternoon on a business day usually leave our USA warehouse the same day, and tracking is emailed when the label is created.
What is the return policy?
If the part does not fit, message our support desk with the order number and we will arrange an exchange or refund. Keep the packaging until the test fit is done.
Is the part inspected before dispatch?
We verify diameter and reinforcement specification on every hose order.
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