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Hunter 336

Built 1995–? by Hunter Marine

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About the Hunter 336

Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.

Illustration of a Hunter 336
Illustration, not a photo of this model. AI-generated illustration of a typical mid-size cruising sloop.
Built
1995–?
Builder
Hunter Marine
Designer
Rob Mazza
Length
33.5 ft
Waterline
28.58 ft
Beam
11.67 ft
Draft
4.5 ft
Displacement
11,030 lb
Ballast
4,100 lb
Hull / keel
fin keel
Rig
sloop
Propulsion
inboard
Fuel
30 gal
Water
80 gal
Water heater
AC + engine · standard
Stern thruster
not fitted
Steering
pedestal cable
Tank capacities — where the figures come from
  • Fuel 30 gal
    “30 gal” — spec database (1994-1997), hunter.sailboatowners.com · “Fuel Tank: 30 Gallons (113.56 Liters)” — search excerpt (1996), capeyachts.com · “Fuel Tank: 35 Gallons (132.49 Liters)” — search excerpt (1995), yachtr.com
    A spec table and one listing say 30 gal; another listing, for a 1995 boat, says 35. No builder document could be checked.
  • Water 80 gal
    “80 gal” — spec database (1994-1997), hunter.sailboatowners.com · “Fresh Water: 80 Gallons (302.83 Liters)” — search excerpt (1996), capeyachts.com · “Fresh Water: 75 Gallons (283.91 Liters)” — search excerpt (1995), yachtr.com
    Spec table and one listing say 80; one listing says 75.
  • Holding unknown
    “Holding Tank: 30 Gallons (113.56 Liters)” — search excerpt (1996), capeyachts.com · “Holding Tank: 25 Gallons (94.64 Liters)” — search excerpt (1995), yachtr.com
    Only broker listings give a figure, 25 or 30 gal. An owner on the SailboatOwners forum replaced a 1995 boat's holding tank with a 30 gal one to keep the original capacity, which points to 30, but no builder figure was found.
  • Water heater AC + engine · standard
    “The water heater operates either on 120 or 240 volts AC or when the engine is running” — owner's manual, pacificsailors.com · “Water heater ... engine heat exchange feed & return lines (H336 potable water system drawing)” — owner's manual, pacificsailors.com · “Water Heater, 6 Gallon” — search excerpt, shop.hunterowners.com
    Hunter's 336 owner's manual lists a water heater manual among its equipment manuals, and its drinking-water drawing shows the heater with engine heat-exchange lines, but gives no size. A 6 gal size appears only in the HunterOwners replacement-parts list. The manual's 80 US gal capacity against the drawing's 75 gal tank may include the heater.

Tanks are often replaced or added on older boats — check the tank labels or a survey for yours.

Thrusters and steering — where this comes from
  • Bow thruster unknown
    The Hunter 336 owner's manual (systems drawings, 12 V diagram) shows no thruster, and no option list was found.
  • Stern thruster not fitted
    Our earlier figure of none had no source. The owner's manual electrical drawings show no thruster, but that doesn't rule out an option.
  • Steering pedestal cable
    “SEE EDSON STEERING MAINTENANCE UNDER 'MAINTENANCE' FOR A COMPLETE DESCRIPTION OF STEERING COMPONENTS” — owner's manual, pacificsailors.com · “REMOVE CONSOLE WELL FOR ROUTINE MAINTENANCE CHECKS OF STEERING GEAR, CHAIN, SHEAVES, AND CABLES” — owner's manual, pacificsailors.com · “Refer to the manufacturer's instructions for maintaining pedestal steering system. Cables should be routinely inspected” — owner's manual, pacificsailors.com
    The builder's H336 Steering Console drawing shows Edson wheel steering in a cockpit console or pedestal, with chain over the steering gear to wire cables and sheaves. A separate drawing covers the emergency tiller.

Thrusters and steering are often replaced — check the units on your boat before ordering parts.

Sources disagree on holding tank — left blank rather than guessed.

B&R rig with aft-swept spreaders and no backstay; large-roach main, vang trim important. Fin with bulb and spade rudder, 4.5 ft (sailboatdata); owners mention a less weatherly keel version and a deeper fin. Two mainsheet layouts: cabintop traveler or short pedestal-mounted traveler. Two interior layouts, one with a separate V-berth. Owners say engine access is good. Sailboatdata lists no last-built year. Hull laminate not stated in sources read.

Engines fitted

Generator

No generator in the owner's manual capacities, systems drawings or equipment-manual list.

Manuals and brochures online

Hosted by the builder or an owners' association; they own the copyright.

Known problems for this model

Engines & parts

Yanmar 3GM / 3GM30F parts: good

Factory standard engine — you entered “Yanmar 3GM30F”

Very popular (used 3GM30Fs sell for $3,000+) and supported by a strong parts network. Cylinder head overhauls (valve seals, lapping, injector service) are a common, parts-supported repair.

Parts sources: Mack Boring & Parts (Yanmar distributor), HDI Marine (stainless exhaust elbows), Parts4Engines

Common problems (2)
  • Overheating at cruise rpm cooling
    The 3GM30F has a known overheating tendency linked to its heat exchanger; owners also trace it to coked elbows, worn impellers, scaled heat exchangers or air in the raw water circuit. Some heat exchangers were replaced under warranty.
    forums.sailboatowners.com
  • Mixing elbow corrosion exhaust
    OEM elbows corrode internally and should be inspected or replaced with stainless versions before they let water into the engine.
    practical-sailor.com · facebook.com
Maker’s service schedule (2)
Fuel filters & water separator250 hrs
“The normal replacement interval for the element is 250 hours ... Filter cleaning First time 50 hours Filter element repl” — manufacturer, c320.org
Air filter / intake silencer250 hrs
“Washing period Every 250 hours” — manufacturer, c320.org
Service part numbers (10)
Oil filter Yanmar 119305-35170
Replaces 119305-35151, 119660-35150
“3GM30F Basic Service Kit ... 119305-35170 1 FILTER ASSY, D68XL65” — dealer, oldportmarine.com · “Maintenance kit Yanmar 2GMF, 2GM20F, 3GMF, 3GM30F ... Yanmar 119305-35170 Oil Filter” — dealer, marinedustrie.com
Fuel filter Yanmar 104500-55710
“Fuel Filter Element 1 104500-55710 / Fuel Filter O-Ring 1 24341-000440” — dealer, ellebogen.com · “3GM30F Basic Service Kit ... 104500-55710 1 ELEMENT, FUEL FILTER” — dealer, oldportmarine.com
Raw-water impeller
Japan-built 3GM / 3GM30(F) (serial not starting with E)
Yanmar 124223-42092
“Impeller 1 124223-42092 / Impeller Gasket 1 124223-42110” — dealer, ellebogen.com · “3GM30F Basic Service Kit ... 124223-42092 1 IMPELLER, PUMP” — dealer, oldportmarine.com
Raw-water impeller
European-built GM-YEU (serial starting with E)
Yanmar 128990-42570
Replaces 128990-42200
“(Supersedes part number: 128990-42200) ... 3GM30-YEU, 3GM30C-YEU 3GM30F-YEU, 3GM30FC-YEU” — dealer, palmerpower.com · “It fits Yanmar 2GM20F, 2YM15, 3GM30F, 3GM30FC, 3TN30F, 3YM20, 3YM30, 3YM30AE engines. Cross Reference: 128990-42200” — dealer, deltadieselparts.com
Drive belt Yanmar 25132-003700
“Alternator Belt 1 25132-003700” — dealer, ellebogen.com · “3GM30F Basic Service Kit ... 25132-003700 1 V-BELT, A37” — dealer, oldportmarine.com
Drive belt Yanmar 104511-78780
“S/W Pump Belt 1 104511-78780” — dealer, ellebogen.com · “3GM30F Basic Service Kit ... 104511-78780 1 V-BELT, M/19” — dealer, oldportmarine.com
Air filter Yanmar 128270-12540
“Air Filter Element 1 128270-12540” — dealer, ellebogen.com · “3GM30F Basic Service Kit ... 128270-12540 1 ELEMENT, AIR CLEANER” — dealer, oldportmarine.com
Zinc / anode
raw-water 3GM / 3GM30; also sold for the F (heat-exchanger) versions
Yanmar 27210-200300
“27210-200300 Yanmar Engine Zinc Anode For 2GM(D), 3GM(D), 2GM20, 3GM30” — dealer, zincsforboats.com · “It fits Yanmar 2GM, 2GM20F, 2GM15, 2GM20, 3GM30F, 3GMF, 3HMF, 3GM30H engines.” — dealer, deltadieselparts.com
Thermostat
3GM30F / 3GMF (fresh-water cooled)
Yanmar 121750-49800
“Thermostat 1 121750-49800 / Thermostat Gasket 1 129350-49541” — dealer, ellebogen.com · “Thermostat for Yanmar 2GMF, 3GMF, 3HMF, 2GM20F, 3GM30F, 3HM35F / REC121750-49800” — dealer, marineparts.eu
Thermostat
3GM / 3GM30 (raw-water cooled)
Yanmar 105582-49200
“Replaces Yanmar Marine 105582-49200 ... 1GM, 2GM, 3GM, 1GM10, 2GM20, 3GM30” — dealer, repowermarine.com · “1GM10, 2GM20 & 3GM30 Thermostat to fit raw water cooled engine versions ... equivalent to 105582-49200” — dealer, parts4engines.com

From the engine maker’s parts lists, or two independent parts dealers. Numbers change with serial number and get superseded — check yours before ordering.

Model sources (6)

sailboatdata.com · sailingbreezes.com · forums.sailboatowners.com · en.wikipedia.org · hunter.sailboatowners.com · pacificsailors.com

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Other Hunter models

Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.