---
product_id: 569711046
title: "4J Sure-Flex Plus Sleeve Coupling Insert, 4JE"
brand: "kbz"
price: "€ 37.22"
currency: EUR
in_stock: true
reviews_count: 3
category: "Kbz"
url: https://www.desertcart.nl/products/569711046-4j-sure-flex-plus-sleeve-coupling-insert-4je
store_origin: NL
region: Netherlands
---

# Precision 1.5" inner diameter 18 durable teeth for secure fit 1.25" thick robust rubber sleeve 4J Sure-Flex Plus Sleeve Coupling Insert, 4JE

**Brand:** kbz
**Price:** € 37.22
**Availability:** ✅ In Stock

## Summary

> ⚙️ Lock in reliability, flex with confidence!

## Quick Answers

- **What is this?** 4J Sure-Flex Plus Sleeve Coupling Insert, 4JE by kbz
- **How much does it cost?** € 37.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/569711046-4j-sure-flex-plus-sleeve-coupling-insert-4je)

## Best For

- kbz enthusiasts

## Why This Product

- Trusted kbz brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Yet Tough:** At just 0.04 kg, it offers easy handling without compromising strength.
- • **Trusted by Industry Pros:** Ranked #57 in Flexible Multi-Flex Couplings, a proven choice for professional-grade plumbing.
- • **Engineered for Perfect Fit:** Precisely sized 1.5" inner and 2.25" outer diameters ensure seamless coupling integration.
- • **Maximum Grip with 18 Teeth:** Enhanced torque transmission and slip resistance for reliable performance under pressure.
- • **Durable Rubber Construction:** Thick 1.25" sleeve absorbs vibrations and resists wear for long-lasting durability.

## Overview

The 4J Sure-Flex Plus Sleeve Coupling Insert (4JE) by KBZ is a premium rubber coupling sleeve designed for plumbing professionals. Featuring a precise 1.5" inner diameter, 18 teeth for secure grip, and a robust 1.25" thickness, it delivers durable, vibration-resistant performance. Lightweight and highly rated, it’s a trusted component for flexible multi-flex coupling applications.

## Description

4J Sure-Flex Plus Sleeve Coupling Insert, 4JE Rubber Coupling Sleeve. Inner Diameter: 1"-1/2". Outer Diameter: 2"-1/4". Teeth: 18. Thickness: 1"-1/4".

Review: Good product!
Review: Excellent Price

## Features

- 4J Sure-Flex Plus Sleeve Coupling Insert, 4JE Rubber Coupling Sleeve.
- Inner Diameter: 1"-1/2".
- Outer Diameter: 2"-1/4".
- Teeth: 18.
- Thickness: 1"-1/4".

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRWD3DCX |
| Best Sellers Rank | 190,921 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 57 in Flexible Multi-Flex Couplings |
| Brand | KBZ |
| Customer Reviews | 4.2 out of 5 stars 16 Reviews |
| Item Weight | 0.04 Kilograms |
| Manufacturer | KBZ |
| Material | Rubber |

## Images

![4J Sure-Flex Plus Sleeve Coupling Insert, 4JE - Image 1](https://m.media-amazon.com/images/I/51wtrue1eQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product!
*by A***O on 18 August 2025*



### ⭐⭐⭐⭐⭐ Excellent Price
*by B***B on 24 April 2025*



### ⭐⭐⭐⭐⭐ Perfect fit
*by A***R on 15 August 2024*



## Frequently Bought Together

- 4J Sure-Flex Plus Sleeve Coupling Insert, 4JE，Epdm Rubber
- 6JE Coupling Sleeve Elastomer for S-Flex Sure Flex Gear Sleeve Solid Design, 3.75'' OD, 1.875'' Elastomer Length, 450 in-LB Torque, 6000 RPM
- 5JE Coupling Sleeve Elastomer for S-Flex Sure Flex Gear Sleeve Solid Design, 2.94" OD, 1.56" Elastomer Length, 240 in-lbs Nominal Torque

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**Shop now:** [https://www.desertcart.nl/products/569711046-4j-sure-flex-plus-sleeve-coupling-insert-4je](https://www.desertcart.nl/products/569711046-4j-sure-flex-plus-sleeve-coupling-insert-4je)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-25*