---
product_id: 274362668
title: "BUSY-CORNER 4C-4782 Seal O-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701528 4C4782 Replacement"
brand: "busy-corner"
price: "B/.213"
currency: PAB
in_stock: true
reviews_count: 12
category: "Busy Corner"
url: https://www.desertcart.com.pa/products/274362668-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90
store_origin: PA
region: Panama
---

# Heavy-duty case - organized & portable 90D Nitrile - heat & oil resistant 580 pcs - comprehensive multi-size kit BUSY-CORNER 4C-4782 Seal O-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701528 4C4782 Replacement

**Brand:** busy-corner
**Price:** B/.213
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with the ultimate O-ring kit—because downtime is not an option!

## Quick Answers

- **What is this?** BUSY-CORNER 4C-4782 Seal O-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701528 4C4782 Replacement by busy-corner
- **How much does it cost?** B/.213 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/274362668-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

- • **All-in-One Solution:** 580 precision O-rings covering 32 CAT OEM part numbers—never scramble for the right size again.
- • **Unmatched Durability:** Crafted from premium Buna-N 90D for superior heat, oil, and wear resistance—built to last under pressure.
- • **24/7 Support Assurance:** BUSY-CORNER’s dedicated customer service ensures you’re never left stranded—help is just a call away.
- • **Effortless Organization:** Heavy-duty storage case keeps every O-ring perfectly sorted and ready for action on the go.
- • **Versatile Compatibility:** Designed for SAE, ORFS fittings, and CAT hydraulic hose applications—your go-to kit for heavy machinery.

## Overview

The BUSY-CORNER 4C-4782 Seal O-Ring Kit features 580 durable Buna-N 90D nitrile O-rings in 32 CAT OEM sizes, designed for high-pressure hydraulic hose fittings. Packaged in a rugged, organized case, it offers exceptional heat, oil, and wear resistance, making it ideal for CAT excavators and heavy machinery maintenance. Backed by 24/7 customer support, this kit is a must-have for professionals seeking reliability and convenience.

## Description

BUSY-CORNER 4C-4782 Seal O-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701528 4C4782 Replacement: desertcart.com: Industrial & Scientific

Review: A real good kit - A cost effective kit to keep on my service truck. Has gotten me out of a bind several times.
Review: Fits - Solid kit had every thing I’ve needed so far very happy with it for equipment o rings

## 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 orings.
- 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: BUSY-CORNER always focuse on product quality and service. If you have any questions, please contact us. We are in 24 Hours Service!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08PNJT4V5 |
| Best Sellers Rank | #62,944 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #138 in O-Rings |
| Brand | BUSY-CORNER |
| Color | Black |
| Date First Available | December 4, 2020 |
| Item Weight | 2.53 pounds |
| Item model number | 4C-4782 2701528 |
| Manufacturer | BUSY-CORNER |
| Material | Rubber Nitrile 90 |
| Number of Pieces | 580 |
| Product Dimensions | 13.78 x 11.42 x 1.77 inches |
| Set Name | O-Ring Kit |
| UPC | 791715982971 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BUSY-CORNER
- **Color:** Black
- **Manufacturer:** BUSY-CORNER
- **Material:** Rubber Nitrile 90
- **UPC:** 791715982971

## Images

![BUSY-CORNER 4C-4782 Seal O-Ring Kit, Nitrile 90, Hydraulic Hose Fitting Orings, Fits CAT Caterpillar Excavator 2701528 4C4782 Replacement - Image 1](https://m.media-amazon.com/images/I/81y2mempuwL.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

### ⭐⭐⭐⭐⭐ A real good kit
*by T***S on September 21, 2025*

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

### ⭐⭐⭐⭐⭐ Fits
*by J***E on June 21, 2025*

Solid kit had every thing I’ve needed so far very happy with it for equipment o rings

### ⭐⭐⭐⭐ Good product
*by T***M on January 13, 2026*

Everything was good

## 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

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**Shop now:** [https://www.desertcart.com.pa/products/274362668-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90](https://www.desertcart.com.pa/products/274362668-busy-corner-4c-4782-seal-o-ring-kit-nitrile-90)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-03-01*