---
product_id: 654052353
title: "4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12"
brand: "himarklif"
price: "₨620"
currency: SCR
in_stock: true
reviews_count: 2
url: https://www.desertcart.sc/products/654052353-4pcs-main-harness-30amp-relays-5pins-12v-compatible-with-2008
store_origin: SC
region: Seychelles
---

# 30Amp high current capacity 1,000,000 mechanical endurance cycles Wide -40 to +125°C operating range 4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12

**Brand:** himarklif
**Price:** ₨620
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your ride with relays that never quit!

## Quick Answers

- **What is this?** 4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12 by himarklif
- **How much does it cost?** ₨620 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/654052353-4pcs-main-harness-30amp-relays-5pins-12v-compatible-with-2008)

## Best For

- himarklif enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Over 1 million mechanical cycles ensure unmatched durability
- • **Weather Warrior:** PBT housing with flame & water resistance keeps your relay safe
- • **Plug & Play Upgrade:** Direct fit for 2008+ Sea-Doo models—easy swap, zero hassle
- • **Precision Engineering:** Pure copper coil with silver alloy contacts for low power loss
- • **Powerhouse Performance:** Handles up to 30Amps for seamless boat power delivery

## Overview

This 4-pack of 30Amp 5-pin 12V relays is engineered with pure copper coils and silver alloy contacts for efficient, long-lasting performance. Designed for 2008+ Sea-Doo models, these relays feature a durable PBT housing with flame and water resistance, mechanical endurance of 1,000,000 cycles, and operate reliably between -40°C and +125°C, ensuring your boat’s electrical system stays rock solid.

## Description

Full description not available

## Features

- 【Replace Part Number】: 278003828, G8V-RH-1C7T-R-DC12, 278002822, 278002168;
- 【Reliable Materials】: The automotive high current micro 280 5pins relay coil is made of pure copper material, coupled with silver alloy contacts, which gives the relay the characteristics of low power consumption and long lifespan. The PBT plastic housing and dust cover to ensure good flame and water resistance of the relay.The relay cannot be used in water;
- 【Easy to Replace】 Located in the Fuse Box on the boat's Main Wiring Harness, this 30Amp 5Pins 12V relay is easy to replace and will help you solve boat wiring problems;
- 【Packages Include】: 4 × 5Pins SPDT 30Amp Main Harness Relays;
- 【Features】: 30Amp 5Pins 12VRelays; Mechanical endurance:1,000,000 times; Electrical endurance:100.000 times; Ambient temperature:-40 to +125°C;
- 【Compatible with】Fit for 2008+ Sea-Doo: BASE 16/19 CRUISE 18/21 EXPLORER 170 FISH 18/PRO GTI GTX RXP X 300/325 SPARK 60/90/900 ACE/HO ACE WAKE BASE/PRO LIMITED;

## Product Details

- **Connector Type:** Plug-In
- **Contact Material:** Silver Alloy
- **Contact Type:** Normally Closed Normally Open
- **Current Rating:** 20 Amps
- **Mounting Type:** Plug In Mount

## Images

![4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12 - Image 1](https://m.media-amazon.com/images/I/61DSclmdwQL.jpg)
![4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12 - Image 2](https://m.media-amazon.com/images/I/71LjYL0bJ5L.jpg)
![4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12 - Image 3](https://m.media-amazon.com/images/I/71nYVfmhPAL.jpg)
![4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12 - Image 4](https://m.media-amazon.com/images/I/81Fa4OrUwUL.jpg)
![4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12 - Image 5](https://m.media-amazon.com/images/I/716EF1wV3mL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as required
*by P***T on July 18, 2025*

Worked

### ⭐⭐⭐⭐⭐ Sea Doo GTXs 155 - Worked Like A Champ!
*by J***. on November 9, 2024*

I had one of my two Sea Doos that would not start and I had nothing on the display. I pulled the factory relay from one and swapped it with the other and my Sea Doo started right up, so I knew it was the relay. Bought these, put a little dielectric grease on them, and they fired right up. I went ahead and got the 4 pack, so I replaced them on both skis and now keep a spare in a plastic bag inside the console. You never know when something simple like this will leave you stranded.

## Frequently Bought Together

- HIMARKLIF 4PCS Main Harness 30Amp Relays 5Pins 12V Compatible with 2008+ Sea-Doo GTI GTR GTS GTX RXP RXT Cruise Spark 900 Base 16/19 Sport 18/21 Fuel Pump Relay Replace# 278003828 G8V-RH-1C7T-R-DC12
- Starter Solenoid Relay Replacement for Sea-Doo 3D GS GSI GSX GTI GTS GTX HX LRV RX RXP RXT SP SPI SPX SUV XP XP800 Wake Challenger Explorer Islandia Speedster Sportster Utopia 278-001-802 278003012

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-14*