Hatteras 48 Motor Yacht (1981-84)
Built 1981–1984 by Hatteras Yachts
About the Hatteras 48 Motor Yacht (1981-84)
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1981–1984
- Builder
- Hatteras Yachts
- Length
- 48.67 ft
- Beam
- 15 ft
- Draft
- 3.92 ft
- Displacement
- 45,000 lb
- Hull
- fiberglass
- Hull / keel
- planing
- Propulsion
- inboard
- Fuel
- 590 gal
- Water
- 190 gal
- Holding
- 90 gal
- Stern thruster
- none
'Dual mode' hull meant for efficient displacement running with planing ability given bigger engines (HMY lists hull type as modified-V; recorded as planing, though with base engines it runs at displacement speed). Heavy solid-glass build, long keel, 7-deg deadrise. Three staterooms, three heads, very large aft deck, hardtop standard.
Known problems for this model
-
Underpowered with base 6-71Ns engine
The 285hp 6-71N boats run efficiently at about 8 knots but may not plane when fully loaded; 425hp 6V92s are needed for 14-15 knot cruising.hmy.com
Engines & parts
Detroit Diesel 6-71 (inline, N / T / TI) parts: good
Factory standard engine — you entered “Detroit Diesel 6-71N”
Two-stroke 71-series engine with a huge commercial, bus and marine population; basic engine parts and complete overhaul kits (liners, pistons, injectors, blowers, bearings, gaskets) are cheap and widely available from Diesel Pro Power, Highway and Heavy Parts and others. Some marine-specific parts (coolers, manifolds) are harder to find. Designed to be rebuilt in-frame repeatedly; naturally aspirated engines with good care have been reported past 15,000 hours, turbo versions more like 3,000–5,000.
Parts sources: Diesel Pro Power (Detroit Diesel parts), Highway and Heavy Parts (Series 71)
Common problems (2)
-
Oil leaks engine
Owners describe 71-series Detroits as habitual oil leakers; chasing leaks with the right gaskets and sealants is a routine topic even on freshly rebuilt engines.trawlerforum.com · cruisersforum.com
-
Noise and smoke exhaust
Injector and exhaust noise is loud unless mufflers are well designed, and some smoke is typical of the two-stroke design.trawlerforum.com
Model sources (1)
Other Hatteras models
- Hatteras 37 Convertible 1977–1982
- Hatteras 40 Double Cabin 1987–1996
- Hatteras 43 Double Cabin 1971–1984
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.