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FLEXTECH Silicone SAE J20R3 Heater Hose, 3-1/4 in ID, 12 ft Length, Red - Silicone SAE J20R3 Heater Hoses
FLEXTECHSilicone SAE J20R3 Heater Hoses

FLEXTECH Silicone SAE J20R3 Heater Hose, 3-1/4 in ID, 12 ft Length, Red

The FLEXTECH Straight Hose (SKU HT40-325, MPN HT40-325) is a silicone SAE J20R3 heater hose with a 3 1/4 in inside diameter and 12 ft length. It features a red silicone cover and tube, with a temperature range of…

SKU 3G-OTH-454155

Also listed as: HT40325 · HT40 325

Brand
FLEXTECH
Item
Silicone SAE J20R3 Heater Hose, 3-1/4 in ID, 12 ft Length, Red
Part Number
HT40-325
Category
Silicone SAE J20R3 Heater Hoses
Available to Order
Also known as:HT40-325FLEXTECH
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

FLEXTECH
Manufacturer Part Number
HT40-325
Type
Red, Silicone, Silicone
Hose Lg
12 ft
Hose Color
Red
Temp. Range
-65° to 450°F
Hose Tube Material
Silicone
Hose Cover Material
Silicone

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FLEXTECH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FLEXTECH Straight Hose (SKU HT40-325, MPN HT40-325) is a silicone SAE J20R3 heater hose with a 3 1/4 in inside diameter and 12 ft length. It features a red silicone cover and tube, with a temperature range of -65° to 450°F.

Frequently Asked Questions

What is the FLEXTECH Straight Hose used for?

The FLEXTECH Straight Hose is a silicone SAE J20R3 heater hose designed for coolant and heating systems in industrial equipment, trucks, and buses. Its silicone construction handles temperatures from -65° to 450°F, making it suitable for high-heat engine applications where rubber hoses would fail.

What are the specifications of the FLEXTECH Straight Hose?

The FLEXTECH Straight Hose (MPN HT40-325) has a 3 1/4 in inside diameter, 12 ft length, and red silicone cover and tube. It meets SAE J20R3 standards and operates from -65° to 450°F. The hose cover and tube are both silicone, providing flexibility and heat resistance.

Where to buy FLEXTECH Straight Hose worldwide?

3G Electric supplies the FLEXTECH Straight Hose worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this silicone heater hose to any country.

How to install the FLEXTECH Straight Hose?

Install the FLEXTECH Straight Hose by cutting to length with a sharp knife, then sliding over barbed fittings and securing with constant-torque clamps. Avoid overtightening to prevent silicone damage. Ensure the hose is not kinked and operates within the -65° to 450°F range for best service life.

Used in

Common applications for FLEXTECH
Industrial burner systems — FLEXTECH silicone heater hoses for coolant circulation in preheat loops
Turbocharged diesel engines — FLEXTECH charge air cooler hoses for intake air routing
HVAC equipment — FLEXTECH vacuum hoses for pneumatic control lines
Marine engine cooling — FLEXTECH SAE J20R3 heater hoses for raw water and closed-loop systems
Generator sets — FLEXTECH 45° elbow hoses for coolant line routing in confined spaces
Compressed air systems — FLEXTECH silicone hoses for high-temperature air transfer
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FLEXTECH Products

3G Electric supplies FLEXTECH silicone sae j20r3 heater hoses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This silicone heater hose meets SAE J20R3 standards for coolant and hot-water transfer in industrial heating systems. With a 4-inch inside diameter and 12-foot length, it handles temperatures from -65° to 450°F. The red silicone cover and tube resist degradation in high-heat environments such as boilers, heat exchangers, and process machinery

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