My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-8556 MerCruiser Exhaust Elbow Riser Mounting Kit with 3" Riser & 6" Spacer

Manufacturer

Picture for manufacturer Sierra

Part Number

18-8556
12 reviews
Sale Price

$22.23

3 left at this price

delivery box

Usually delivered within 2 days

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 18-8556 Exhaust Elbow Mounting Kit is a precision-engineered riser mounting kit designed for MerCruiser stern drive engines. This kit includes a 3" riser and 6" spacer and is built to meet or exceed original equipment specifications, delivering reliable performance in demanding marine environments.

Key Features:

  • Riser mounting kit includes 3" riser and 6" spacer
  • Used to mount spacer 18-1985 to compatible MerCruiser manifolds
  • Precision-built components using marine-grade materials
  • Meets or exceeds OEM specifications

Compatible Manifolds:

  • 18-1951-1 Manifold
  • 18-1952-1 Manifold
  • 18-1953-2 Manifold
  • 18-1957-2 Manifold
  • 18-1985 Manifold Spacer
  • 18-1908 Manifold Riser Spacer

Compatible Gaskets:

  • 18-0897 Exhaust Elbow Gasket
  • 18-2849-1 Exhaust Elbow Gasket

Cross References:

  • GLM: 53360
  • Mallory: 9-40584
  • Osco: 3322-MK

Very good price, fast shipping, A+

Good

So far it is good, we received our order in great time. I haven't installed the muffler yet, but looks like it should be the right one. Thanks

it was quick and easy

Easy to place my order and find the right parts that fit my vehicle.

Just received my wheel lock. It is exactly as described and came very quickly. Autoplicity has the cheapest price and great service.

Nice website

Good deals

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

Awesome!

Sales person was very helpful finding my old order and taking a new order for the same pump. Good prices. I will order again. thank you. John

I was able to find a part I couldn't find anywhere else, and at a reasonable price! Thank you!

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