Exhaust Riser for Mercruiser Inboard/Outboard with rear riser.

Fits GM and Ford Based V8 Engines 1982 and Earlier

Fits Inline 4 Cylinder 120HP 153 2.5L 1984 and newer that use a 4 bolt riser.

Fits 140HP 181 3.0L all years that have a 4 bolt riser

Inline 6 Cylinder 165 and 200HP Models.

The Riser Mounting Pad for this Riser is 3-3/4 x 4 Inches

Uses Osco # 6351-G gasket

Replaces Mercruiser #: 76351A04, 76351A1, 76351A2, 60426A1, 49964A2, 49964A1
Osco # 6351
GLM # 51120
Sierra # 18-1971
Mallory # 9-40558
HGE # 6351

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

Exhaust elbow riser for most V8 Inboard applications with th log style manifolds.

Replaces Mercruiser #: B-76771A3, 76771A2
Osco # 6771
Mallory # 9-40556
GLM # 51190
Sierra # 18-1978.

The riser pad on this riser is 3-3/4 x 4 Inches.

Used on both Ford & GM V8 Inboard engines with log style manifolds prior to 1983.

This Riser was used on straight inboards.
Includes Riser Gasket and mounting hardware.

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

This riser was used on some mercruiser inboard applications with the log style manifolds. It fit models 225, 250, 255, 270, and 280, all with Chevrolet small block and big block engines. It fits and BARMC1-47737 manifolds, uses GLM31480 gaskets

Exhaust Riser for Mercruiser Sterndrive V8 Models 225, 250, 255, 270 and 280 with Log Style exhaust manifolds, fits BARMC1-47738 and BARMC1-47737 manifolds, uses GLM31480 gaskets