Attention Speedmaster III/IIIA owners:
Konrad Marine of Hudson, Wisconsin is proud to announce the latest addition to the Konrad product line, a direct replacement for the aging MerCruiser Speedmaster III and IIIA* sterndrive units.
The Konrad PRSIII greatly simplifies the SSMIII conversion process:
Remove the existing Speedmaster sterndrive and drive bellhousing.
Install the specially designed Konrad SSM conversion bellhousing.
Slide the Konrad drive unit into place.
Minimal effort is required thanks to Konrad’s exclusive input shaft alignment pin arrangement. The Konrad PRSIII conversion system is delivered as a complete kit with all necessary components and a detailed installation manual. Complete conversions can be accomplished in four hours.
The drive selected for this conversion is an enhanced version of the successful Konrad 540. This special drive conversion is fitted standard with the Konrad Heavy Duty upper input shaft and High Performance lower gear case options. The Konrad PRSIII is 1.78” shorter (from input shaft to propshaft elevation) than the SSMIII series drive. This has demonstrated to be beneficial as most of the SSMIII units were originally mounted at conservative heights. Initial installations have proven to be a 100% success with speed gains standard!
*SSMIII is a product of Mercury Marine, a Brunswick company. The name is used for reference purposes only.
All materials and workmanship are guaranteed.
We stand behind our products. For over 35 years, the Konrad Companies have
excelled in precision machining.
Standard Equipment (Supplied with sterndrive)
- 540 HD upper housing assembly
- 540 HP lower housing assembly
- HD bell housing (with bellows)
- External Steering back cover
Options for individual
applications (Available for purchase from
Konrad)
- X-Factor lower housing
assembly
- Drive extension/spacer kits
- HP upper gear set
- Tie bars
- Propellers
- 42 oz. HP oil reservoir
- Stern Drive lifting bracket
*SSMIII is a product of
Mercury Marine, a Brunswick company. The name is used for reference purposes
only.