Need the HPS 9/16″ (14mm) ID, 1-5/8″ Long Blue Silicone Reinforced Coolant Cap For Bypass Heater Vacuum Valve Water Port? We hold inventory, check every order and dispatch the same business day.

Reinforcement ply count determines burst strength, which matters most on boosted applications. Keep petroleum away from standard silicone unless the hose is lined for it.
Buyers comparing the long blue silicone reinforced will find the specification detail on this page rather than in a catalog footnote.
The long blue silicone reinforced listed here is checked against your vehicle before dispatch.
Every long blue silicone reinforced order goes through the same fitment review.
Ordering the long blue silicone reinforced takes a minute and the confirmation reaches you straight away.
Our team knows the long blue silicone reinforced well, so ask if anything about the specification is unclear.
Stock of the long blue silicone reinforced is live on this page rather than estimated.
Shops order the long blue silicone reinforced from us in volume because the data on the page is accurate.
What you are buying
- Material: Silicone
- Finish: Blue
- Category: Universal Hose
- Price: $25.04 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
The HPS Performance 9/16″ (14mm) high temperature reinforced Blue silicone cap is designed specifically to be installed on your cooling system. Vacuum caps have no reinforcement and are intended for vacuum and very little pressure. The HPS reinforced silicone caps are manufactured just like our reinforced silicone radiator hoses. While traditional rubber coolant cap might crack and cause coolant leak, HPS Performance high temperature 3-ply polyester reinforced silicone caps will withstand the high temperatures and pressures of your cooling system for years to come.
HPS Reinforced Silicone Caps are compatible for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and much more.
Technical Specification
Product Type: Reinforced Silicone Coolant Cap
HPS Part Number: RSCC-055-BLUE
Temperature Range:- 65 deg. F to + 350 deg. F (177 deg. C)
Reinforced Layer: 3-ply Polyester
Inside Diameter: 9/16″ (14mm)
Color: Blue
Wall Thickness: 4mm
Inside Length: 1-3/16″
Overall Length: 1-5/8″
UV and ozone resistant
Remark: HPS reinforced silicone caps are not compatible with fuel, oil, or any petroleum-based products.
- Material: 3-Ply Reinforced Polyester Silicone
- Color: Blue
- Made of High Temperatureerature 3-ply Polyester Reinforced Silicone. Maximum Temperature Rating: 350 deg. F (177 deg. C).
- Ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications
- Compatible for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and much more.
- Inside Diameter: 9/16″ (14mm). Overall Length: 1-5/8″
- HPS reinforced silicone caps are not compatible with fuel, oil, or any petroleum-based products.
Application:
HPS Reinforced Silicone Caps are Universal Fit that compatible for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and much more.
Remark:
Installation: Compatible with Water/Coolant ONLY, Not for Fuel/Oil
Product Content:
- 1 x Coolant Cap
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- RSCC-150-BLUE, RSCC150BLUE
We would rather answer a question before you buy than process a return afterward, so ask freely.
Explore more: Hoses & Fittings · HPS 1.5″ (38mm) ID, 6″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · HPS 1.5″ (38mm) ID, 4″ Leg Long Black 4-Ply Silicone 1/2″ Offset Coupler Hose · full catalog
Your order is picked, inspected and packed by a person, then handed to the carrier with tracking the same day.
If you want independent guidance before ordering, the fuel economy maintenance guidance is a useful reference.
Common questions
Can you check fitment before I order?
Send your VIN or your year, make and model and our fitment desk confirms the part against manufacturer data before it ships. The check is free and usually answered the same business day.
When will my order dispatch?
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?
Contact support before removing or returning anything, so the right process starts on the first message and nothing is voided by accident.
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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