1-81151137-0 Starter Motor Magnetic Switch for Isuzu 4BG1 / 6BG1 Engine

Product Title
1-81151137-0 Starter Motor Magnetic Switch for Isuzu 4BG1 / 6BG1 Engine

Product Overview
This starter motor magnetic switch is specially designed for the Isuzu 4BG1 and 6BG1 engine series, with part number 1-81151137-0. The magnetic switch (also known as a solenoid switch) is the core control component of the starter motor, responsible for energizing the starter circuit and engaging the drive pinion with the flywheel ring gear to crank the engine. Manufactured with high-conductivity copper contacts and a powerful electromagnetic coil, it ensures quick and reliable starting response – a key electrical component of the engine starting system.

Key Features

• Strong electromagnetic force – Coil wound with high-quality copper wire for powerful magnetic force, ensuring decisive shift fork action and rapid pinion engagement.

• High-conductivity contacts – Main contacts made of high-purity copper for excellent conductivity, resistance to arc erosion, and extended service life.

• Precision spring system – Return spring rigorously fatigue-tested to ensure timely return of shift fork and pinion after starting, preventing abnormal wear.

• Sealed dust-proof design – Well-sealed housing protects against dust and moisture in harsh engine compartment environments.

• OEM matching – Manufactured to Isuzu original technical specifications, with mounting dimensions and electrical interfaces fully compatible with original units.

Technical Specifications

• Engine Model: Isuzu 4BG1 / 6BG1

• Part Number: 1-81151137-0

• Type: Starter Motor Magnetic Switch (Solenoid Switch)

• Packaging: Individual packaging

Installation & Usage Tips

• Before installation, verify the part number (1-81151137-0) matches your original unit.

• Always disconnect the battery negative terminal before installation for safety.

• Check that wiring terminals are clean and securely tightened – poor contact may cause weak starting or terminal burn-out.

• After installation, test the starting function to ensure the magnetic switch engages and releases properly without abnormal noise or binding.

• If weak starting or unusual switch noise occurs, inspect contact wear and coil resistance promptly.

Packaging & Delivery

• Each unit comes in individual packaging with a sturdy carton box.

• Adequate stock available; orders are shipped within 1–3 working days.