---
product_id: 426976826
title: "Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement"
brand: "busy-corner"
price: "€ 208.00"
currency: EUR
in_stock: true
reviews_count: 5
category: "Busy Corner"
url: https://www.desertcart.es/products/426976826-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90
store_origin: ES
region: Spain
---

# Heavy-duty organized storage case 90 Durometer heat & wear resistant 580 pcs premium O-rings Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement

**Brand:** busy-corner
**Price:** € 208.00
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with confidence—never get stuck without the perfect O-ring again!

## Quick Answers

- **What is this?** Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement by busy-corner
- **How much does it cost?** € 208.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/426976826-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90)

## Best For

- busy-corner enthusiasts

## Why This Product

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

## Key Features

- • **Risk-Free Reliability:** Backed by hassle-free returns and full refund policy for total peace of mind.
- • **Versatile Compatibility:** Fits SAE, ORFS fittings, and CAT hydraulic hose applications—your all-in-one sealing kit.
- • **Complete Hydraulic Seal Solution:** 580 precision Nitrile O-rings covering 32 CAT OEM sizes for every repair need.
- • **Effortless Organization On-the-Go:** Robust storage case with labeled compartments keeps your kit sorted and ready for action.
- • **Built to Endure Extreme Conditions:** Crafted from Buna-N 90D material, engineered for high temperature, oil, UV, and wear resistance.

## Overview

The Busy-Corner 4C-4782 Seal O-Ring Kit offers 580 durable, high-performance Nitrile O-rings in 32 CAT OEM sizes, designed for hydraulic hose fittings and heavy-duty applications. Made from Buna-N 90 Durometer material, these O-rings resist heat, oil, UV, and wear, ensuring long-lasting reliability. Packaged in a sturdy, compartmentalized case for easy organization and portability, this kit is a must-have for professionals seeking a comprehensive, versatile sealing solution with a customer-friendly return policy.

## Description

BUSY-CORNER 4C-4782 270-1528 O-ring Assortment Kit Fits CAT Caterpillar Ø SPECIFICATIONS:20 pieces each for CAT part number 4J7533,7J0204,4J5477,6V8397,6V8398,7J9108,6V9746,5K9090,6V8400,8T0315,3J7354,1J9671,3J1907,3K0360,2M9780,3D2824,4K1388,7M8485,2S40786K6307,304606,4J5140,4J526715 pieces each for CAT part number 4J0519,4J0520,4J0521,4J0522,4J0523,4J052410 pieces each for CAT part number 4J0525,4J0526,4J0527Total 580pcs, packed in a plastic storage case with label to identify sizesØ WIDE APPLICATION4C-4782(2701528) Seal oring kit use for sae stor & orfs fittings,code 61/62 flange O-Rings,Caterpillar hydraulic hose fitting oring.

Review: A cost effective kit to keep on my service truck. Has gotten me out of a bind several times.
Review: Looks to be a good complete oring kit. Orfs, orb, flange orings. Only thing that would make the kit be better is the compartments had labels on style & size.

## Features

- High Quality:Made of Buna-N 90D (NBR) material,are durable,high temperature resistance,anti static,oil resistant,UV resistance,heat resistant,wear resistant,exceptionally suited for high pressure applications.
- Multi Size:You can get a good selection of 32 different CAT OEM part numbers oring in this kit,can meet almost all your needs.
- Wide Application:This Kit use for sae stor & orfs fittings,code 61/62 flange O-Rings,Caterpillar hydraulic hose fitting oring.
- Handy Packing: Comes with a heavy duty storage case that keeps each size o rings separated and organized,that makes more convenient to carry, select and collect.
- Customer Service: You are unhappy for any reason, return your kit with no questions asked and we will provide a full refund.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08PNJT4V5 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 115,894 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 336 in O-Rings |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (115) |
| Date First Available | 4 Dec. 2020 |
| Item Package Quantity | 1 |
| Item Weight | 1.15 kg |
| Item model number | 4C-4782 2701528 |
| Manufacturer | BUSY-CORNER |
| Material | Synthetic Rubber |
| Number of Pieces | 580 |
| Part Number | 4C-4782 2701528 |
| Product Dimensions | 35 x 29 x 4.5 cm; 1.15 kg |
| Size | 4C-4782 |

## Product Details

- **Brand:** BUSY-CORNER
- **Colour:** Black
- **Manufacturer:** BUSY-CORNER
- **Material:** Synthetic Rubber
- **UPC:** 791715982971

## Images

![Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement - Image 1](https://m.media-amazon.com/images/I/41ktSCsq3wL.jpg)
![Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement - Image 2](https://m.media-amazon.com/images/I/513T0Fy67eL.jpg)
![Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement - Image 3](https://m.media-amazon.com/images/I/519FM+ty5SL.jpg)
![Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement - Image 4](https://m.media-amazon.com/images/I/51TiOCfaHzL.jpg)
![Busy-Corner 4C-4782 Seal O-Ring Kit,Nitrile 90 Durometer,580pcs,Hydraulic Hose Fitting Orings, Fits CAT Caterpiller Excavator 2701528 4C4782 Replacement - Image 5](https://m.media-amazon.com/images/I/61+lNZ6lWAL.jpg)

## Questions & Answers

**Q: Are these actual cat seals?**
A: It Is not a cat box but you would never tell the o rings apart from the genuine - perhaps they are made at the same factory..

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***S on 21 September 2025*

A cost effective kit to keep on my service truck. Has gotten me out of a bind several times.

### ⭐⭐⭐⭐⭐ Review
*by H***H on 6 August 2024*

Looks to be a good complete oring kit. Orfs, orb, flange orings. Only thing that would make the kit be better is the compartments had labels on style & size.

### ⭐⭐⭐ Review
*by C***G on 17 August 2025*

Limited selection

## Frequently Bought Together

- BUSY-CORNER 4C-4782 Seal O-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701528 4C4782 Replacement
- BUSY-CORNER 4C-4784 Print D-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Drings, Fits CAT Caterpillar Excavator 2701535 4C4784 Replacement
- BUSY-CORNER 4C-8253 Seal O-Ring Kit, Silicone 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701533 4C8253 Replacement

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.es/products/426976826-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90](https://www.desertcart.es/products/426976826-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-09*