Skip to product information
12_3a139b9a-f394-4b14-b0f0-84569037e0d5 - Northline Parts

Battery Relay Switch 08088-30000 for KOMATSU PC78US-6 PC78UU-6 PC100-6 PC100L-6

Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$72.59
Sale price  $72.59 Regular price 

In Stock

Ships Nationwide in 2–4 business days.
This Battery Relay Switch is a high-quality aftermarket replacement part compatible with KOMATSU PC78US-6, PC78UU-6, PC100-6, PC100L-6 and matches OEM Part# 08088-30000.

Questions? We're here to help!

Talk with a parts expert today

Call us

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Product Overview

This heavy-duty battery relay switch is designed to provide reliable electrical connectivity and circuit protection for Komatsu excavators. It ensures safe power management between the battery and the engine starter, maintaining consistent performance in demanding construction and earthmoving environments.

Key Features & Performance

  • Heavy-duty construction designed to withstand extreme vibrations and temperature fluctuations.
  • Precision-engineered contacts for high conductivity and minimal voltage drop.
  • Direct replacement fit ensures seamless integration with the existing vehicle wire harness.

Fitment & Compatibility

  • KOMATSU PC78US-6
  • KOMATSU PC78UU-6
  • KOMATSU PC100-6
  • KOMATSU PC100L-6

Technical Specifications

  • Part Number(s): 08088-30000
  • Component Type: Battery Relay Switch
  • Application: Electrical System Power Management

Frequently Asked Questions

  • Q: What are the signs of a failing battery relay? A: Common symptoms include the engine failing to crank, a clicking sound when turning the ignition, or intermittent electrical power throughout the machine.
  • Q: Is this an aftermarket or genuine Komatsu part? A: This is a high-quality aftermarket part manufactured to meet or exceed original equipment specifications for fitment and durability.

Compatibility may vary by serial number. Verify fitment before purchase.

Need Any Help?

Work 1-on-1 With An Expert For:

  • The Right Part Selection
  • Our Best Pricing Tiers
  • Priority Customer Support
  • White Glove Installations
  • Flexible Payment Options

Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

Complete This Form

You may also like

Keywords (Used as search references only) View IP policy.