---
product_id: 143855445
title: "Ryobi 311280001 Start Key (Fuse Key) for P1100, RY40104, RY40108"
brand: "ryobi"
price: "$12.65"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/143855445-ryobi-311280001-start-key-fuse-key-for-p1100-ry40104-ry40108
store_origin: US
region: United States of America
---

# 40V Operating Voltage 40 Amp Current Rating Genuine Ryobi Replacement Ryobi 311280001 Start Key (Fuse Key) for P1100, RY40104, RY40108

**Brand:** ryobi
**Price:** $12.65
**Availability:** ✅ In Stock

## Summary

> 🔑 Unlock flawless starts with Ryobi’s trusted power key!

## Quick Answers

- **What is this?** Ryobi 311280001 Start Key (Fuse Key) for P1100, RY40104, RY40108 by ryobi
- **How much does it cost?** $12.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/143855445-ryobi-311280001-start-key-fuse-key-for-p1100-ry40104-ry40108)

## Best For

- ryobi enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** Bulk packed and compatible with multiple Ryobi models for hassle-free replacement.
- • **Compact & Efficient:** Sleek 1.38 x 1.38 x 2 inch design fits perfectly without bulk.
- • **Durable Copper Contacts:** Premium copper contact material guarantees reliable conductivity and longevity.
- • **Power Up with Precision:** Designed for 40V Ryobi lawn mowers, ensuring seamless start-up every time.
- • **Manual Control, Maximum Reliability:** Manual operation with a plunger actuator for trusted, fail-safe performance.

## Overview

The Ryobi 311280001 Start Key is a genuine replacement fuse key designed for 40V Ryobi lawn mowers (models RY40104 and RY40108). Featuring a durable copper contact, 40 Amp current rating, and compact dimensions, it ensures reliable manual operation and easy installation, keeping your mower powered and ready.

## Description

Ryobi 311280001 Start Key (Fuse Key)This part is compatible with the following machines:RyobiRY40108 40 Volt Lawn MowerRY40104 40 Volt Lawn Mower

## Features

- Genuine Ryobi replacement part.
- New, Bulk Packed.
- Genuine Ryobi Replacement Part.
- Consult owners manual for proper part number identification and proper installation.
- Please refer to list for compatibility.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | manual |
| Current Rating | 40 Amps |
| Operating Voltage | 40 Volts |
| Contact Type | Normally Open |
| Connector Type | Micro-usb |
| Brand | RYOBI |
| Terminal | Through Hole |
| Item dimensions L x W x H | 1.38 x 1.38 x 2 inches |
| Circuit Type | 1-way |
| Mounting Type | Desk Mount |
| Actuator Type | Plunger |
| Contact Material | Copper |
| International Protection Rating | IP20 |
| Number of Positions | 1 |
| Controller Type | Ring |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Color | Red |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Ryobi |
| Part Number | FBA_311280001 |
| Item Weight | 0.16 ounces |
| Product Dimensions | 1.38 x 1.38 x 2 inches |
| Item model number | 311280001 |
| Is Discontinued By Manufacturer | No |
| Power Source | Manual |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Operation Mode:** manual
- **Current Rating:** 40 Amps
- **Operating Voltage:** 40 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Micro-usb
- **Brand:** RYOBI
- **Switch Type:** Plunger
- **Terminal:** Through Hole
- **Material:** Brass
- **Item dimensions L x W x H:** 1.38 x 1.38 x 2 inches

## Images

![Ryobi 311280001 Start Key (Fuse Key) for P1100, RY40104, RY40108 - Image 1](https://m.media-amazon.com/images/I/41KiAGHNDEL.jpg)

## Questions & Answers

**Q: Will it work with the Ryobi 40w, 20 inch mower?**
A: Yes, it does work. I have the Ryobi 20 inch, 40 volt Lithium battery cordless push mower. I misplaced the original start key and ordered this as a replacement. No problems.

**Q: Will this work for 18v mower also?**
A: Yes it will.

**Q: Does this key fit a hart electric mower, every search i make brings up this specific key as a result?**
A: yes the key works good

**Q: Will this work for a Hart 40v push mower?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Deal, Great Product
*by L***S on September 9, 2025*

Affordable and does the job I need it to do.

### ⭐⭐⭐⭐⭐ Perfect replacement key!!
*by D***N on September 1, 2025*

It works great if you’ve misplaced your lawnmower key!

### ⭐⭐⭐⭐⭐ Key for lawn mower.
*by J***Y on September 7, 2025*

Perfet fit. I was worried.

## Frequently Bought Together

- Ryobi 311280001 Start Key (Fuse Key) for P1100, RY40104, RY40108
- AAAQQ 311280001 Start Key (Fuse Key) for Ryobi 40v Lawn Mower P1100 RY40104 RY40108 RY40109
- Kotoate Replacement for Ryobi 40V Battery Charger, OP401 Charger Compatible with Ryobi 40V Lithium Battery OP4040 OP4050 OP4050A OP40601 OP4026 OP4015 OP4030 Fast Charger

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**Shop now:** [https://www.desertcart.us/products/143855445-ryobi-311280001-start-key-fuse-key-for-p1100-ry40104-ry40108](https://www.desertcart.us/products/143855445-ryobi-311280001-start-key-fuse-key-for-p1100-ry40104-ry40108)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-21*