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Hella 003959001 Rotary Ignition Starter Switch with Diesel Pre-Heating

Manufacturer

Picture for manufacturer Hella

Part Number

003959001
15 reviews
Sale Price

$138.62

Estimated ship date Saturday, November 21

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Hella 003959001 is a rotary ignition and starter switch designed for diesel-powered vehicles and equipment, featuring an integrated pre-heating (glow plug) position. This heavy-duty switch combines ignition, pre-heat, and starter control into a single rotary unit, making it a reliable solution for diesel engine starting systems. The full Hella part number is 6JB 003 959-001.

Key Features:

  • 5 Switch Positions: P (Parking/Side Lights), 0 (Off), 1 (Driving/Accessory), 2 (Pre-Heat/Glow Plugs), 3 (Start)
  • Dual Voltage Compatible: Operates on both 12V and 24V electrical systems
  • Maximum Load Ratings: Terminal 30 with 50A fuse — 70A/18A (12V) and 40A/5A (24V)
  • Current Ratings by Position: Park lamps: 4A | Driving: 18A | Pre-Heat: 35A | Start: 5A/35A
  • Includes 2 Keys (Hella key 740558007) — key can only be removed in the P (Park) and 0 (Off) positions
  • Rotary switch design with integrated safety lock
  • Universal fitment — may require modification for specific applications

Hella is a global OE-quality manufacturer of automotive electronics and lighting with over 120 years of expertise. This switch is built to OE standards for dependable mechanical and electrical performance in demanding diesel applications including trucks, agricultural equipment, marine, and industrial machinery.

Products specifications

Rated Voltage [V]

12

Supplementary Article/Info 2

with lid

Number of Poles

10

SVHC

7439-92-1; Lead

Control Type

Turn knob control

Combi Switch Function

Preheating

Great price, so far was an easy process in ordering the part I was looking for!!

Fast and easy

The product shipped right away and I received it about a week later. The part bolted up without any issues, I wished I had replaced the actuator at the same time. Very pleased with the product and delivery time. "I'll Be Back" - Arnold

Item arrived on and was correct part

Great Price

we will see once product arrives

Very easy great product

Ok

Good

Great price and good company to buy from!

I ordered CV axles from Autoplicity and had them in less than a week! Definitely the best prices for quality product on this item. Will be a return customer for sure!

I was apprehensiveness at first to make a major purchase with Autoplicity due to their extremely low price and lack of reviews. I decided to take the chance and I am very glad I did. I made my order on a Monday morning at 0900 eastern time and my product arrived on Wednesday at 3pm. The item was exactly as described and the most astonishing part is that my purchase was released from the factory less than 45 days ago. I was expecting a model that had been sitting on a shelf for the last year and needed to be updated. That was not the case. I will definitely order from Autoplicity again in the future.

2ND ORDER WITH AUTOPLICITY. GREAT SELECTION AND FAST SHIPPING.

Very good price. Super quick delivery. Will def. buy from them again. Highley recomend them

Sweetest price on this K&N Filter anywhere! Shipped within 24hrs too. I'm coming back to shop for my car next.

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