Direct Replacement Mercruiser V8 GM Big Block Center Rise Exhaust Manifold, MC-1-89011

★★★★★ 4.1 24 reviews

US$165.59
Price when purchased online
Free shipping Free 30-day returns

Sold and shipped by rshvacdesigns.com
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
US$165.59
Price when purchased online
Free shipping Free 30-day returns

How do you want your item?
You get 30 days free! Choose a plan at checkout.
Shipping
Arrives Nov 12
Free
Pickup
Check nearby
Delivery
Not available

Sold and shipped by rshvacdesigns.com
Free 30-day returns Details

Product details

Management number 204559425 Release Date 2025/10/30 List Price US$165.59 Model Number 204559425
Category

Quality built replacements for your rusty or cracked Mercruiser GM Big Block Center Rise Exhaust Marine Manifold (Part No. 89011A8) on your Mercruiser Engine with a Direct Replacement Chev Big Block Center Rise Exhaust Manifold, MC-1-89011. Barr has been building quality marine products since 1933. Manifolds by Barr are covered by a manufacturer's 3-year warranty. It is recommended that replacement manifolds be done in pairs and to also replace the risers and elbows at the same time.

Made in the USA

  • Replaces Mercruiser # 89011A8
  • Fits Mercruiser models 330, 340 and 454 magnum
  • For inboard and stern-drive units
  • Includes all mounting hardware, gaskets and plugs


Get back that new boat feel! Barr Manifolds are designed to reduce back-pressure and often when replacing OEM-installed manifolds, more horsepower is achieved.

When choosing a Manifold, it is recommended to also choose the appropriate new risers / elbows. Although Manifolds such as Barr, Osco and others including original equipment often look alike, it is recommended to buy manifolds and risers as sets. Where applicable, buy replacement manifolds in pairs and be sure to include the appropriate riser / elbow.

View Complete Barr Catalog


Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Customer ratings & reviews

4.1 out of 5
★★★★★
24 ratings | 10 reviews
How item rating is calculated
View all reviews
5 stars
77% (18)
4 stars
7% (2)
3 stars
4% (1)
2 stars
2% (0)
1 star
10% (2)
Sort by

There are currently no written reviews for this product.