Do more without spending more! Shop the Splash into Summer Sale!
Over 26,000 items On Sale!

Exhaust Manifold Elbow - 18-1978 - Sierra

Sierra
Blowout
Save 28% Off.
Exhaust Manifold Elbow - 18-1978 - Sierra
Summer Sale Price: $233.09
Save: $90.91
(28% Off $324.00)
Part # 18-1978 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 16 hrs 22 mins.
No Reviews | Write Review | Ask Question
This item is found in the following Product Families
Pleasurecraft Exhaust Manifold Elbows
Mercruiser GM IL6 (165, 200) Sterndrive Exhaust Manifold Exploded View
Mercruiser Sterndrive Exhaust Manifold Exploded View Diagram and Parts Fits GM In-Line 6-Cylinder 250 & 292 cu. In. Models 165 & 200 Figure # …
Mercruiser GM Small Block V8 (198, 228, 898) Sterndrive Exhaust Manifold Exploded View
Mercruiser Sterndrive Exhaust Manifold Exploded View Diagram and Parts Fits GM Small Block V8 305-350 cu. In. Models 198, 226 & 898 Figure # …
Mercruiser GM Small Block V8 (215, 225, 233, 255, 888) Sterndrive Exhaust Manifold Exploded View
Mercruiser Sterndrive Exhaust Manifold Exploded View Diagram and Parts Fits Ford Small Block V8 302-351 cu. In. Models 215, 225, 233, 255 & 888 …
Replaces OEM part #
  • MERCURY MARINE 76771A2
  • MERCURY MARINE 76771A3
For: V-8 Inboard Applications Only
Use with:
    Manifold: 18-1950-1, 18-1951-1, 18-1958, 18-1962, 18-1954-1, 18-1955-1, 18-1956-1
    Elbow Gasket: 18-2833
    Mounting Kit: 18-4362
Ask a question for
Question & Answer Guidelines
This product ships in 1 business day.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
Do you need Professional Installation? iboats.com has teamed with a national network of independent installers that are ready to handle your installation needs.
Find your local Amtech dealer:
Shop the Splash into Summer Sale and SAVE!
Need it in a hurry? Upgrade to 2nd Day Air for only $2 more*