Post 50 Convertible
Built 1989–2008 by Post Marine
About the Post 50 Convertible
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1989–2008
- Builder
- Post Marine
- Length
- 50.58 ft
- Beam
- 16.92 ft
- Draft
- 4.5 ft
- Displacement
- 57,122 lb
- Hull
- fiberglass-cored
- Hull / keel
- planing
- Propulsion
- inboard
- Fuel
- 870 gal
- Water
- 240 gal
- Holding
- 42 gal
- Stern thruster
- none
Over 100 built (hulls_built is that lower bound). Cored hullsides, solid glass bottom, low deadrise (7 deg); untapered transom gives a ~150 sq ft cockpit. Fuel tanks moved aft in 1995 improving engine-room headroom; bridge widened 1997. Build count (approximate, not stored): HMY: over 100 delivered.
Known problems for this model
No well-sourced problem reports found yet.
Engines & parts
Detroit Diesel 8V-92 (TA / TTA) parts: good
Factory standard engine — you entered “Detroit Diesel 8V92”
736 cu in two-stroke V8. Mechanical and early DDEC versions; overhaul kits and parts are plentiful through Detroit aftermarket suppliers. High-output versions are expensive to keep healthy.
Parts sources: Diesel Pro Power (Detroit Diesel parts)
Common problems (3)
-
Short life at high ratings engine
Owners report major overhauls around 2,000 hours being common on ~720 hp versions; the high-output engines are described as intolerant of anything out of adjustment, while lower-rated motor-yacht versions last longer.samsmarine.com · samsmarine.com
-
Marginal cooling capacity cooling
Keeping coolers clean and temperatures below about 185 F is stressed; overheating in warm water is a frequent complaint.samsmarine.com · facebook.com
-
Turbo housing damage exhaust
Poorly supported exhaust can crack turbo housings; turbo rebuilds for oil 'slobbering' are also mentioned.samsmarine.com
Model sources (1)
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.