We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

FLEXTECH Hose Reducer: 3 1/2 in_4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone - Silicone SAE J20 Heater Hose Reducers
FLEXTECHSilicone SAE J20 Heater Hose Reducers

FLEXTECH Hose Reducer: 3 1/2 in_4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone

The FLEXTECH Hose Reducer (MPN R40-350/400) is a blue silicone SAE J20 heater hose reducer with a 3 1/2 in to 4 in hose inside diameter and 3 in hose length. It features silicone tube and cover materials, with a…

SKU 3G-OTH-457300

Brand
FLEXTECH
Item
Hose Reducer: 3 1/2 in_4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone
Category
Silicone SAE J20 Heater Hose Reducers
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Technical Specifications

FLEXTECH
Manufacturer Part Number
R40-350/400
Type
Blue, Silicone, Silicone
Hose Lg
3 in
Hose Color
Blue
Temp. Range
-65° to 350°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 Hose Reducer (MPN R40-350/400) is a blue silicone SAE J20 heater hose reducer with a 3 1/2 in to 4 in hose inside diameter and 3 in hose length. It features silicone tube and cover materials, with a temperature range of -65° to 350°F.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a FLEXTECH silicone hose reducer used for?

A FLEXTECH silicone hose reducer connects two different-diameter heater hoses in automotive or industrial cooling systems. It transitions from a 4 in hose to a 3 1/2 in hose, maintaining flow while reducing size. The silicone construction handles temperatures from -65° to 350°F, making it suitable for high-heat coolant applications.

What are the specifications of the FLEXTECH R40-350/400 hose reducer?

The FLEXTECH R40-350/400 is a blue silicone SAE J20 heater hose reducer with a 3 1/2 in to 4 in hose inside diameter and 3 in hose length. It has silicone tube and cover materials, with a temperature range of -65° to 350°F. The manufacturer part number is R40-350/400.

Where to buy FLEXTECH hose reducers worldwide?

3G Electric supplies FLEXTECH hose reducers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver the R40-350/400 and other FLEXTECH silicone reducers to your facility. Contact us for a quote and delivery options to your region.

How to install a FLEXTECH silicone hose reducer?

To install a FLEXTECH silicone hose reducer, ensure both hose ends are clean and dry. Slide the reducer onto the larger hose, then push the smaller hose into the reducer. Secure with appropriate clamps on both ends. Avoid over-tightening to prevent silicone damage. Follow SAE J20 guidelines for best results.

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

FLEXTECH Products

3G Electric supplies FLEXTECH silicone sae j20 heater hose reducers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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FLEXTECH Hose Reducer: 2 in_3 1/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-200/325). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 2 in_3 1/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-200/325). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 3 1/2 in_3 3/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-350/375). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 3 1/2 in_3 3/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-350/375). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 1 3/4 in_2 1/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-175/225). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 1 3/4 in_2 1/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-175/225). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 2 1/2 in_3 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-250/300). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 2 1/2 in_3 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-250/300). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 2 3/4 in_3 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-275/300). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 2 3/4 in_3 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-275/300). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 1 1/4 in_1 3/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-125/175). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 1 1/4 in_1 3/4 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-125/175). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-325/350). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-325/350). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
FLEXTECH Hose Reducer: 2 3/4 in_3 1/2 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-275/325). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.
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FLEXTECH Hose Reducer: 2 3/4 in_3 1/2 in Hose Inside Dia., 3 in Hose Lg, Blue, Silicone, Silicone (MPN R40-275/325). Key specifications — Hose Cover Material: Silicone; Hose Color: Blue; Temp. Range: -65° to 350°F; Hose Tube Material: Silicone; Brand: FLEXTECH.