Riser for a Mercruiser application. It has a 3.0" exhaust outlet and a 90° down angle.
Fits inline 4 cylinder GM 153 cid 2.5L (1983-1989), 181 cid 3.0L (1982-1989), and Mercruiser 470 224 cid 3.7L (1976-1982).
Includes riser mounting hardware and gasket.
This item replaces Mercury Marine Quicksilver original equipment part # 76325A2; Osco # 6325; GLM # 51130; Sierra # 18-1972; Mallory # 9-40552
Barr Manifolds and Risers come with a 3-year limited warranty (PDF)!

Riser Exhaust for Mercruiser on a 3.7L 4-cylinder for a Cast Iron Exhaust Manifold.

It comes with the pressure cap, gasket and mounting hardware.

NOTE: THIS RISER IS HELD ON WITH 4 SHORT BOLTS (ABOUT 1-1/2 INCHES).

IF YOUR RISER IS HELD DOWN WITH 4 LONG BOLTS (ABOUT 4 INCHES) THIS WILL NOT FIT YOUR APPLICATION!

Uses Osco # 0879-G riser gasket

Replaces Mercruiser #: 90880
Osco # 0879
Sierra # 18-1905
Mallory # 9-40550

Barr Manifolds and Risers come with a 3-year limited warranty (PDF)!

Exhaust Elbow with Reservoir for Mercruiser 3.7L 224 using the Aluminum Exhaust Manifold.

If you dont know if your manifold is Aluminum or Cast Iron, look at the bolts. If the bolts are long (about 4 inches) then you have the aluminum manifold.

The cast Iron Manifold uses bolts that are about 1-1/2 inches long. They are not interchangable!

This riser comes as pictured.

Replaces:

Mercury #: 98561, 98562A6
GLM #: 51180
Sierra 18-1937

• Will not fit Cast Iron Exhaust Manifold