Water Pump Kit Housing MerCruiser Pre Alpha 1 R Sterndrive 18-3317 46-96148A8
Mercruiser #1 Pre-Alpha Pre-MR Water Pump Kit
Includes Upper and Lower Housings
Sierra Marine or EMP 18-3317, 4-3317
Please See Example Images for Correct Fitment
Fits #1 Pre-Alpha and Pre-MR Drives WITH Pre-Load Pin
Does NOT fit Gen 2 or Alpha 1 Gen 1 (Without pre-load pin)
Fits Pre-Alpha and Pre-MR S/N: 2763442 – 6854392
(Fits Driveshaft WITH Pre-Load pin Only)
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.
