My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-6293 Alternator 7SI 70 Amp Hinge Mount Serpentine Pulley for Mercruiser

Manufacturer

Picture for manufacturer Sierra

Part Number

18-6293
11 reviews
Sale Price

$231.97

In Stock (7)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-6293 is a high-output marine alternator designed specifically for Mercruiser stern drive applications. This reliable replacement alternator delivers 70 amps of charging power to keep your boat's electrical system running strong.

Key Specifications:

  • 7SI series alternator design for proven durability
  • 70 amp output capacity for demanding electrical loads
  • Hinge mount configuration for easy installation
  • Serpentine pulley with 2.44" diameter for efficient belt operation
  • Engineered for Mercruiser stern drive engines

Sierra marine alternators are built to withstand the harsh marine environment with corrosion-resistant components and reliable performance. This direct replacement alternator ensures proper charging system operation and is manufactured to meet or exceed OEM specifications. The serpentine pulley design provides smooth, quiet operation and improved belt life compared to V-belt systems.

Application: Fits various Mercruiser stern drive engines equipped with 7SI alternator systems. Verify fitment for your specific engine model before ordering.

Products specifications

Compatibility

7SI/70 AmpHinge MountSerpentine Pulley. Replaces 862031T

Type

Alternators

There prices are the best I have seen for what I bought.

super easy and fast.

Easy part to locate, good pricing.

always quick & easy also bought hotchkis front sway from here no problem & best price -free shipping

This company offers profesional service at a very competitive price. The header collectors i ordered were not available at the big speed outlets. The fast shipping was also a plus. I would recomend Autoplicity to anyone who needs parts in a hurry !

This company is AWESOME! They had an item in stock that I could not get anywhere else and the price and shipping time was super! I will definitely use again.<br>A++++ in my book.....

Easy, and parts are in stock. Fast shipping. Very satisfied.

Best auto parts site on the net.

Had a little trouble adjusting the number of parts to order. Once on Amazon payment it wasn't intuitive on how to correct the quantity. I called tech services and they got me there quickly. Thanks.

Definitely good prices and they shipped my order within a day. So far, they've had really good customer service.

good price, quick and easy

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy