Details about Exhaust Bellows for Mercruiser 3-4″ replaces 70981A3
It was used for:
165/170/3.7L/180/190/470/485/488 manifolds(1980 – 1989)
Chevy 305/350/377 (1983 – up)
Big block 454/502 (1981 – up)
V6 229/262 (1983 – up)
Installs on to 3 inch 15 degree center mounted risers with 4 inch elbow
After market Ref:
Mercruiser:70981A3
Mallory Marine: 9-72808
Sierra: 18-2762
GLM: 89070
This item cotains two clamps
If you need to purchase an impeller product and cannot identify the type of rubber impeller equipment, please provide us with the A, B, C values and INSERT TYPE of the impeller as shown in the picture below, and we will try our best to find the corresponding accessories for you.
