---
product_id: 90089198
title: "Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox"
brand: "fuhr"
price: "529 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/90089198-fuhr856-upvc-door-replacement-lock-case-30mm-backset-gearbox
store_origin: RO
region: Romania
---

# Polished Finish 30mm Backset Gearbox Design Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox

**Brand:** fuhr
**Price:** 529 Lei
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in Style and Security!

## Quick Answers

- **What is this?** Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox by fuhr
- **How much does it cost?** 529 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/90089198-fuhr856-upvc-door-replacement-lock-case-30mm-backset-gearbox)

## Best For

- fuhr enthusiasts

## Why This Product

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

## Key Features

- • **📏 Perfect Fit:** Designed with a 30mm backset for easy installation.
- • **🌍 Trusted Brand:** Manufactured by Fuhr, a leader in door hardware innovation.
- • **💎 Sleek Aesthetic:** Polished silver finish enhances any door's elegance.
- • **🔑 Secure Your Space:** Experience peace of mind with a reliable locking mechanism.
- • **⚙️ Precision Engineering:** Crafted with a robust gearbox for smooth operation.

## Overview

The Fuhr 856 UPVC Door Replacement Lock Case features a 30mm backset gearbox, crafted from high-quality metal with a polished silver finish. Weighing just 450g, this durable lock case is designed for easy installation and reliable security, making it an essential upgrade for any modern door.

## Description

Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox

## Features

- Hardware

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Fuhr |
| Part Number | 42.3856.92.301 |
| Product Dimensions | 239 x 8 x 5 cm; 450 g |
| Item model number | 42.3856.92.301 |
| Colour | Silver |
| Style | Polished Silver |
| Finish | Polished |
| Material | Metal |
| Shape | Rectangular |
| Number of Pieces | 1 |
| Special Features | Key Unlock |
| Included Components | Hardware |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 450 g |

## Product Details

- **Brand:** Fuhr
- **Special feature:** Key Unlock
- **Lock type:** Key Lock
- **Item dimensions L x W x H:** 2.39 x 0.08 x 0.05 metres
- **Material:** Metal

## Images

![Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox - Image 1](https://m.media-amazon.com/images/I/41fzJQmielL.jpg)
![Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox - Image 2](https://m.media-amazon.com/images/I/51nhc00kteL.jpg)
![Fuhr856 UPVC Door Replacement Lock Case 30mm Backset Gearbox - Image 3](https://m.media-amazon.com/images/I/413ePsx7CEL.jpg)

## Questions & Answers

**Q: How do you reverse the latch on a Fuhr gearbox?**
A: Hi if you push the latch in with the gearbox in your hand you will see that a 2mm Allen key comes into view through a round hole in the side of the gearbox. This is the grub-screw that holds the latch in place which you need to remove and then you can spin the latch round and re-attach regards upvcspares4repairs

**Q: For the backset do i measure from the front of the lock mechanism or from the front of the faceplate?**
A: you measure from the front of the faceplate to the centre of the square spindle hole

**Q: Is it split spindle? Only opens from inside without key?**
A: No, key hole on inside as well

**Q: Does this come with the holding plate**
A: No this is the replacement gearbox only that screws onto the existing full length faceplate

## Frequently Bought Together

- Fuhr 856 UPVC Door Replacement Lock Case 30mm Backset Gearbox
- UPVC Door Handles Set - White - Lever/Lever - 92mm PZ (Centres) - 122mm Screw to Screw - Backplate 212mm X 34mm- White Replacement- PVC Door Handle

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**Shop now:** [https://www.desertcart.ro/products/90089198-fuhr856-upvc-door-replacement-lock-case-30mm-backset-gearbox](https://www.desertcart.ro/products/90089198-fuhr856-upvc-door-replacement-lock-case-30mm-backset-gearbox)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-14*