---
product_id: 382431301
title: "100TECH Marine Fuel Sending Unit Float Replacement 18\"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms"
brand: "100tech"
price: "$226.11"
currency: USD
in_stock: false
reviews_count: 1
category: "100 Tech"
url: https://www.desertcart.us/products/382431301-100tech-marine-fuel-sending-unit-float-replacement-18-460mm-boat
store_origin: US
region: United States of America
---

# 18" (460mm) Precision Length SAE 5-Hole Mounting Pattern 316 Stainless Steel Durability 100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms

**Brand:** 100tech
**Price:** $226.11
**Availability:** ❌ Out of Stock

## Summary

> ⛵ Elevate your fuel monitoring game with precision & durability that won’t quit!

## Quick Answers

- **What is this?** 100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms by 100tech
- **How much does it cost?** $226.11 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/382431301-100tech-marine-fuel-sending-unit-float-replacement-18-460mm-boat)

## Best For

- 100tech enthusiasts

## Why This Product

- Trusted 100tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Works seamlessly with fuel & water gauges across boats, RVs, and vehicles.
- • **Rugged IP65 Rated Construction:** Built to withstand harsh marine and industrial environments.
- • **Accurate 240-33 Ohm Output Signal:** Standard American output ensures flawless gauge readings every time.
- • **Precision Fit & Easy Installation:** Direct replacement with included gasket & screws for hassle-free setup.
- • **Unmatched Durability with Japanese OKI Reed Switch:** Experience rock-solid reliability with no moving parts to fail.

## Overview

The 100TECH Marine Fuel Sending Unit is a premium 18" (460mm) stainless steel sensor featuring a durable Japanese OKI Reed Switch for reliable, maintenance-free fuel and water level measurement. Designed with a standard SAE 5-hole mounting pattern and IP65 protection, it fits boats, RVs, and vehicles perfectly. Its 240-33 ohm output ensures accurate gauge readings, backed by easy installation with included hardware and a 1-year warranty plus lifetime support.

## Description

100TECH Stainless Steel Fule tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It's Easy to Install. A Perfect Match with All the Screw Holes Lining up the Unit Comes with 5pcs of Screws and 1pc of New Neoprene Gasket. It is the Direct Replacement for Arm Type Sensors or Original Wema Unit for Better Durability and Reliability. The Substantial Flange can Seal the Tank Completely The 100TECH Marine Fule Sending Units are Widely Used in Marine, On-road, Off-road, Generator set, and Industrial Applications. The Electric Liquid Level Sending Unit Utilizes Reed Switch and Magnetic Field technology. In 100TECH Reed Switch Level Senders the Float is the Only Moving Part of the Sender, Thereby Minimizing Potential Mechanical Failures. Material:Body: SUS 316 Stainless Steel. Cable: PVC. Float: NBR. Mounting Methods: Standard SAE 5 hole pattern. Protection Rank: IP65. Output Signal: American Standard 240-33 ohms (240 ohms at empty , 33 ohms at full). Resolution Range: 10mm: 4”,5”，6”,6.5”,7”,7.5” 21mm: 8”,8.5”9”,9.5”,10”,10.5”,11”,11.5”,12”,12.5”,13”,13.5”,14”,15”,16”,17”,18”,19”,21”,24” Operational Temperature: -40°F ~ +85°F (-40°C ~ +85°C). Package Information: 1 x 100TECH Fuel Sending Unit 1 x Gasket 5 x M5*0.8 Length(16mm) Screws 1x Sending Unit Installation Guide Note: Please kindly pay Attention to the Product Description, Especially the Resolution and Length (the Length of Sender Should be 1" less than the Depth of the Tank if tank is Plastic, and 0.5" Less Than the Depth of the Tank if Tank is Metal) Before Placing the Order.

Review: easy to install

## Features

- 100TECH Stainless Steel Fule Tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It is the Direct Replacement for Arm Type sender. The Advantage of This Fuel Level Sender Over Thick-Film Swim Arm Type Level Sender is the Reed Switch's Durability and Reliability.
- Additionally, No Moving Parts to Break. No Adjustment Needed for Tank.
- The Fule/Water Level Sensor with American standard output 240-33 ohms (240 ohms at empty, 33 ohms at full). If you Need Lengths Other than 4"-24", Please Contact us Directly for More Information.
- [Easy to Install] The Fuel Level Sending Unit Comes with Gasket,Mounting Screws,Well-Written and Illustrated instructions; The Wiring Instructions are Straight Forward and Easy to follow.
- SAE 5 hole Mounting Pattern, Heavy Duty 316 Stainless Steel and Rugged Construction.  Wide Application: It Could Support Fuel Level Gauge and Water Level Gauge for Boat/Auto.
- 100Tech Guarantees with 1 Year Limited Warranty & Free Lifetime Technical Support
- Attention: To Allow the Fule Sender not Hit the Bottom of the Tank, Please Measure from the Top of Your Tank to the Bottom on the Outside and Subtract 1 Inch the Length of Sender.
- [The Size of Float] The Diameter of Float is 1.38"(35mm). If You Have to Drill the hole, Diameter 1.50"(38mm) Hole Would be Perfect.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B098MG449K |
| Best Sellers Rank | 743,866 in Automotive ( See Top 100 in Automotive ) 15,233 in Car Switches |
| Brand | 100Tech |
| Colour | 240-33 ohms |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Screw |
| Contact Material | Plastic |
| Contact Type | Normally Open |
| Control Method | App |
| Controller Type | Push Button |
| Current Rating | 33 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (13) |
| International Protection Rating | IP65 |
| Item Weight | 1 Pounds |
| Manufacturer | 100TECH direct |
| Material | Stainless Steel nbr |
| Model Number | 18C5-BY460 |
| Operating Voltage | 240 Volts |
| Operation Mode | automatic |
| Specification Met | Sae |
| Switch Type | Metal |
| Terminal | marine,sae |
| UPC | 721703918026 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** 100Tech
- **Connector type:** Screw
- **Contact material:** Plastic
- **Contact type:** Normally Open
- **Current rating:** 33 Amps
- **Material:** Stainless Steel nbr
- **Operating voltage:** 240 Volts
- **Operation mode:** automatic
- **Switch type:** Metal
- **Terminal:** marine,sae

## Images

![100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms - Image 1](https://m.media-amazon.com/images/I/51vZF89ZMQS.jpg)
![100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms - Image 2](https://m.media-amazon.com/images/I/41Rux-7xM+L.jpg)
![100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms - Image 3](https://m.media-amazon.com/images/I/61FvS+FnTJL.jpg)
![100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms - Image 4](https://m.media-amazon.com/images/I/71KPb-EiMxL.jpg)
![100TECH Marine Fuel Sending Unit Float Replacement 18"(460mm) for Boat Vehicle RV Fuel Sender Gas Tank Sending Unit Diesel Level Sending Unit Water Level Sensor Fuel Gauge Sending Unit 240-33 ohms - Image 5](https://m.media-amazon.com/images/I/61y20xSNSAL.jpg)

## Questions & Answers

**Q: can it read digital gage?**
A: It can be read at 240-33 ohms, is your digital meter letter point at 240-33? What are the most readable signal points of your digital meter

**Q: can this be used on a regular truck fuel tank?**
A: Sure, your tank will need to accept a gauge from the top down then verify the OHMs needed for your gauge and then the length of the unit to make sure it will reach the bottom of your tank for a complete reading and finally the bolt pattern of the sending unit to match your tank or you will need to make an adapter.

**Q: On a new installation would tapping a 3/8 inch aluminum plate for mounting screw holes(5) be sufficient ?**
A: The aluminum plate would have to be thick enough to allow you to tighten the screws down very firmly, but I think it could work.

**Q: Does this need a sealant in addition to the gasket on a Moeller 12 Gal High Profile tank due to the rough surface of a Moeller?**
A: I would use permatex form a gasket as a sealant

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***L on 11 October 2022*

easy to install

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-23*