---
product_id: 648770105
title: "Relay Bypass Switch & Diagnostic Tester - 9038 Tester Kit, Scan Tool, Fuel Pump Relay Bypass Master, Replaces 9036/9037, Compatible with Domestic GM, BMW, Audi, Chrysler (6-Pack)"
brand: "rvmarinepat"
price: "Bs.672"
currency: BOB
in_stock: true
reviews_count: 13
category: "Rvmarinepat"
url: https://www.desertcart.bo/products/648770105-relay-bypass-switch-and-diagnostic-tester-9038-tester-kit-scan
store_origin: BO
region: Bolivia
---

# 20A Continuous / 30A Surge Current 12V Coil Voltage Wide Vehicle Compatibility Relay Bypass Switch & Diagnostic Tester - 9038 Tester Kit, Scan Tool, Fuel Pump Relay Bypass Master, Replaces 9036/9037, Compatible with Domestic GM, BMW, Audi, Chrysler (6-Pack)

**Brand:** rvmarinepat
**Price:** Bs.672
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master Your Diagnostics with the Ultimate Relay Bypass Kit!

## Quick Answers

- **What is this?** Relay Bypass Switch & Diagnostic Tester - 9038 Tester Kit, Scan Tool, Fuel Pump Relay Bypass Master, Replaces 9036/9037, Compatible with Domestic GM, BMW, Audi, Chrysler (6-Pack) by rvmarinepat
- **How much does it cost?** Bs.672 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/648770105-relay-bypass-switch-and-diagnostic-tester-9038-tester-kit-scan)

## Best For

- rvmarinepat enthusiasts

## Why This Product

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

## Key Features

- • **Heavy-Duty Reliability:** Built to OEM standards with 20A continuous and 30A surge capacity for long-lasting performance.
- • **Rapid Circuit Diagnosis:** Plug in and pinpoint electrical faults instantly—cut your repair time in half.
- • **Complete 6-Pack Versatility:** Multiple relay sizes included to tackle any diagnostic or repair challenge with ease.
- • **Effortless Plug-In Operation:** No complex setup—just plug in and control fuel pumps, headlights, windows, and more.
- • **Universal Vehicle Compatibility:** Seamlessly works with GM, BMW, Audi, Chrysler & more—one kit to rule them all.

## Overview

The RVMARINEPAT 9038 Relay Bypass Switch & Diagnostic Tester Kit is a professional-grade 6-pack relay tester designed for quick, reliable diagnostics and control of fuel pumps and other vehicle circuits. Compatible with major domestic and European brands, it supports 12V systems with a robust 20A continuous and 30A surge current rating, replacing multiple relay models (9036/9037) to streamline your automotive troubleshooting and repairs.

## Description

Buy RVMARINEPAT Relay Bypass Switch & Diagnostic Tester - 9038 Tester Kit, Scan Tool, Fuel Pump Relay Bypass Master, Replaces 9036/9037, Compatible with Domestic GM, BMW, Audi, Chrysler (6-Pack): Fuel Pump - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works decent - Nice for testing circuits. Haven't had an issue yet.
Review: Good quality, nicely marked. - Nicely marked, good quality relay bypass.

## Features

- Wide Compatibility & Effortless Control: This Relay tester kit is designed for seamless compatibility with a wide range of vehicles, including Audi, BMW, Volkswagen, GM, Chrysler, and more. Our relay bypass kit also replaces multiple relay models (9038, 9036, 9037) and provides direct control over fuel pumps, window motors, headlights, and other components
- Save Time & Diagnose Faster: This diagnostic tester is very convenient. Quickly identify electrical issues and save valuable time during repairs. Simply plug the relay tester into the fuel pump relay position to gain direct control over the circuit and pinpoint problems
- Reliable Performance & Built to Last: Crafted from high-quality materials, this relay tester is rigorously tested to meet or exceed OEM standards. Our relay bypass switch kit enjoy consistent operation with its 20 amp continuous and 30 amp surge current (12V) capacity, ensuring long-lasting performance
- Complete Kit for Versatile Applications: This 6-pack 9038 includes multiple Relay Testers, giving you ample options for a variety of repair needs and making it a valuable addition to any mechanic's tool box
- Component Included: Our product include relay bypass switch kit 9036-1(36-LRG 20AMP), 9036-2(36-MED 20AMP), 9036-3(36-SML 10AMP), 9037-1(37-LRG 20AMP), 9037-2(37-MED 20AMP), 9037-3(37-SML 10AMP)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D81S5Q6N |
| Best Sellers Rank | #7,933 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Fuel Pump Relays |
| Brand | RVMARINEPAT |
| Coil Voltage | 12 Volts |
| Connector Type | Plug-In |
| Contact Current Rating | 20 Amps |
| Contact Material | Aluminum |
| Contact Type | Normally Closed |
| Current Rating | 20 Amps |
| Date First Available | June 26, 2024 |
| Item Weight | 4.6 ounces |
| Item model number | 9038 |
| Manufacturer | RVMARINEPAT |
| Maximum Switching Voltage | 12 Volts |
| Minimum Switching Voltage | 12 Volts |
| Mounting Type | Panel Mount |
| Operation Mode | Manual |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches |
| Specification Met | CE |
| Wattage | 240 watts |

## Product Details

- **Connector Type:** Plug-In
- **Contact Material:** Aluminum
- **Contact Type:** Normally Closed
- **Current Rating:** 20 Amps
- **Mounting Type:** Panel Mount

## Images

![Relay Bypass Switch & Diagnostic Tester - 9038 Tester Kit, Scan Tool, Fuel Pump Relay Bypass Master, Replaces 9036/9037, Compatible with Domestic GM, BMW, Audi, Chrysler (6-Pack) - Image 1](https://m.media-amazon.com/images/I/61VAMFdIHCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works decent
*by R***S on January 21, 2026*

Nice for testing circuits. Haven't had an issue yet.

### ⭐⭐⭐⭐⭐ Good quality, nicely marked.
*by P***L on January 4, 2026*

Nicely marked, good quality relay bypass.

### ⭐⭐⭐⭐⭐ Worth the purchase easier than a jumper wire
*by D***D on November 28, 2025*

Worked well as I expected

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**Shop now:** [https://www.desertcart.bo/products/648770105-relay-bypass-switch-and-diagnostic-tester-9038-tester-kit-scan](https://www.desertcart.bo/products/648770105-relay-bypass-switch-and-diagnostic-tester-9038-tester-kit-scan)

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-23*