PartSmith Co. supplies the HPS 2.5″, 2.75″ (63mm, 70mm) ID, 6″ Long Black 4-Ply Reinforced Silicone 1/2″ Offset Reducer Coupler Hose to drivers, shops and fleets across the USA.

Reinforcement ply count determines burst strength, which matters most on boosted applications. Measure inner diameter at the fitting rather than estimating by eye.
The 6 long black 4-ply reinforced listed here is checked against your vehicle before dispatch.
Every 6 long black 4-ply reinforced order goes through the same fitment review.
Ordering the 6 long black 4-ply reinforced takes a minute and the confirmation reaches you straight away.
Our team knows the 6 long black 4-ply reinforced well, so ask if anything about the specification is unclear.
Stock of the 6 long black 4-ply reinforced is live on this page rather than estimated.
Shops order the 6 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 6 long black 4-ply reinforced against it.
At a glance
- Reinforcement: 4 ply
- Material: Silicone
- Finish: Black
- Category: Universal Hose
- Price: $82.39 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
HPS 2-1/2″, 2-3/4″ (63mm, 70mm), 6″ 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: 6″
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-L6-BLK, HTSOR250275L6BLK
Shops ordering in volume can send a full parts list and we will verify the whole job in one reply.
Related parts: 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
We pack for the worst day the carrier can have, which keeps our damage rate low.
For neutral background on this kind of maintenance, see the fuel economy maintenance guidance.
Buyer questions
How do I confirm this fits?
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.
How do returns work here?
Returns are handled in one reply for most cases. Keep your order confirmation, since it is the only proof of purchase we need.
Is the part inspected before dispatch?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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