---
product_id: 68895607
title: "(91339) HNBR O-Ring Assortment"
brand: "mastercool"
price: "975 DH"
currency: MAD
in_stock: true
url: https://www.desertcart.ma/products/68895607-91339-hnbr-o-ring-assortment
store_origin: MA
region: Morocco
---

# 18 precise O-ring sizes Durable HNBR material, oil & refrigerant resistant 270-piece comprehensive kit (91339) HNBR O-Ring Assortment

**Brand:** mastercool
**Price:** 975 DH
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with Mastercool’s ultimate O-ring arsenal!

## Quick Answers

- **What is this?** (91339) HNBR O-Ring Assortment by mastercool
- **How much does it cost?** 975 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/68895607-91339-hnbr-o-ring-assortment)

## Best For

- mastercool enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Precision:** 270 O-rings across 18 sizes for every automotive sealing need
- • **Leak-Proof Confidence:** Superior sealing technology to prevent costly leaks and downtime
- • **Engineered for Endurance:** HNBR rubber ensures superior durability and resistance to oils and refrigerants
- • **Organized for Efficiency:** Compact plastic case with 18 compartments keeps your kit ready and accessible
- • **Trusted Automotive Standard:** Compatible with R12 & R134a refrigerants, perfect for professional-grade repairs

## Overview

The Mastercool 91339 HNBR O-Ring Assortment offers 270 durable, oil- and refrigerant-resistant O-rings in 18 sizes, perfectly organized in a compact case. Designed for automotive R12 and R134a applications, this kit delivers reliable, leak-proof sealing to keep your projects running smoothly and professionally.

## Description

(91339) HNBR O-Ring Assortment

## Features

- AUTOMOTIVE R12 & R134a o-ring assortment
- 270 PIECES with 18 different sizes for a variety of applications
- HNBR (HYDROGENATED NITRIC BUTADIENE) rubber material provides durability and ease of use while being refrigerant and oil resistant
- SUPERIOR SEALING to prevent unwanted leaks
- O-RINGS ARE ORGANIZED in 18 different compartments and packaged in a plastic box

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mastercool |
| Brand | Mastercool |
| Model | 91339 |
| Product Dimensions | 15.24 x 12.7 x 5.08 cm; 136.08 g |
| Item model number | 91339 |
| Manufacturer part number | 91339 |
| Item Weight | 136 g |

## Product Details

- **Material:** Synthetic Rubber
- **Item diameter:** 7.8 Millimetres
- **Brand:** Mastercool
- **Colour:** Green
- **UPC:** 700376913392

## Images

![(91339) HNBR O-Ring Assortment - Image 1](https://m.media-amazon.com/images/I/919tcwtOWgL.jpg)
![(91339) HNBR O-Ring Assortment - Image 2](https://m.media-amazon.com/images/I/91t5u6eY9wL.jpg)
![(91339) HNBR O-Ring Assortment - Image 3](https://m.media-amazon.com/images/I/81MnqJERVCL.jpg)

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**Shop now:** [https://www.desertcart.ma/products/68895607-91339-hnbr-o-ring-assortment](https://www.desertcart.ma/products/68895607-91339-hnbr-o-ring-assortment)

---

*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-01-22*