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Sierra MP39780 3-Position Ignition Starter Switch 12V 15A 5/8" Shaft

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

MP39780
19 reviews
03/12/2036 12:04 AM
Sale Price

$18.54

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Sierra MP39780 is a heavy-duty marine ignition starter switch designed for reliable operation in harsh marine environments. This 3-position switch (Off-Ignition-Start) features a durable polyester construction that provides maximum corrosion protection and eliminates potential electrical shorts caused by moisture exposure.

Key Features:

  • 3-position operation: Off, Ignition, and Start positions for complete engine control
  • 12-volt system with 15-amp accessory rating and 30-amp solenoid capacity
  • 5/8" shaft diameter with 7/8" mounting hole requirement
  • Polyester housing construction for superior corrosion resistance in marine applications
  • Inner seal between cylinder lock and contact plate prevents moisture intrusion
  • 3 screw terminals for secure electrical connections
  • Conventional mounting design for easy installation

This switch does not include a push-to-choke feature or protective boot. The polyester construction makes it ideal for marine applications where exposure to salt water, spray, and humidity demand components that can withstand constant moisture without corroding or failing. Perfect for replacing worn ignition switches on boats, marine engines, and other watercraft electrical systems.

Products specifications

Type

Switches

So far everyrhing was smooth sailing. I hope the delivery and the product is the same...

easy ordering

THANK YOU

Very fast shipping

Wrong size belt. Had to return

Order arrived quick and was as described.

Good prices and easy to navigate

great site

Excellent Service. Fast service. Very fast delivery and item was exactly as advertised.

Very detailed list of part fitment. Radiator fits and functions very well. BUT, and this may be no fault of Autoplicity, I received the radiator w/holes punched in the box and some of the cooling fins bent. It wasn't bad enough to warrant a return, thoug

Awesome so far !!!!

That was SO EASY! No sign-ups or info to fill out (used Amazon Payments), so I had plenty of time to write this review!

Quick and easy checkout

Awesome dealer for auto-parts. Fast shipping and they sell good products at great prices! Bought set of club racing brake pads for $15 less than anywhere else on a Saturday and they were here the following Wednesday. I'm in Memphis and it was the week before Christmas. I was very impressed and pleased!

man what a great price could'nt resiste

quick and easy shopping

Excellent prices, inventory and fast service. I placed my order on Saturday, Aug 4, it was shipped on Monday, Aug 6, and due to arrive on Friday. I will be a repeat customer with prices and service like this.

great and quick

Great prices and love the Amazon tie-in.

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