Hunter 34
Built 1983–1987 by Hunter Marine
About the Hunter 34
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1983–1987
- Builder
- Hunter Marine
- Designer
- Cortland Steck
- Length
- 34.42 ft
- Waterline
- 28.25 ft
- Beam
- 11.58 ft
- Draft
- 5.5 ft
- Displacement
- 11,820 lb
- Ballast
- 5,000 lb
- Hull
- fiberglass
- Hull / keel
- fin keel
- Rig
- sloop
- Propulsion
- inboard
- Fuel
- 25 gal
- Water
- 65 gal
- Holding
- 20 gal
- Water heater
- AC + engine · standard
- Stern thruster
- not fitted
- Steering
- pedestal cable · Yacht Specialties
Tank capacities — where the figures come from
-
Fuel 25 gal
“25 gal” — spec database (1983-1987), hunter.sailboatowners.com · “a 25-gallon (95-litre) fuel tank” — search excerpt, sailboat-cruising.com · “Fuel tank 25 gl.” — owner's manual, sbo.sailboatowners.com · “Fuel tank: Gallons 25 / Liters 94.6” — brochure (1983), sbo.sailboatowners.comBuilder's Hunter 34 plumbing diagram (owner's manual) and the 1983 'Introducing the Hunter 34' standard-equipment sheet both give 25 gal (94.6 L).
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Water 65 gal
“65 gal” — spec database (1983-1987), hunter.sailboatowners.com · “65 gallons (246 litres) of fresh water” — search excerpt, sailboat-cruising.com · “2 tanks for a total of 65gals (25 gal aft + 40 gal under port settee)” — search excerpt (1983-1984), forums.sailboatowners.com · “Water tank 30 gl. + water tank 35 gl.” — owner's manual, sbo.sailboatowners.comThe builder's plumbing diagram shows two water tanks, 30 gal (aft) and 35 gal, 65 gal in total. Owners describe the split as 25 and 40, but the total agrees. The water figure on the 1983 equipment sheet is too faint to read reliably.
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Holding 20 gal
“Holding tank 20 gl.” — owner's manual, sbo.sailboatowners.comThe builder's Hunter 34 plumbing diagram lists a 20-gal holding tank.
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Water heater AC + engine · standard
“Hot and cold pressure water system (Hunter 34 standard equipment)” — brochure (1983), sbo.sailboatowners.com · “The water heater operates either on 120 volts AC or when the engine is running” — owner's manual, sbo.sailboatowners.com · “Electric water heater (AC/DC diagram); 5/8" black hose from [engine] unit to water heater & back (plumbing diagram)” — owner's manual, sbo.sailboatowners.comCapacity not stated. The 1983 introduction brochure and standard-equipment sheet list hot and cold pressure water; the owner's manual and the Hunter 34 plumbing diagram show a 120 V heater also heated by an engine coolant loop.
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 1983 Hunter 34 standard-equipment list names no thruster, and no option list was found.
-
Stern thruster not fitted
Our earlier figure of none has no source, and nothing was found either way.
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Steering pedestal cable · Yacht Specialties
“Pedestal steering, w/engine controls and lighted compass” — brochure (1983), sbo.sailboatowners.com · “Hunter TYPICAL STEERING SYSTEM ... Quadrant ... Idler Plate w/Sheaves ... Emergency Tiller Access” — owner's manual, sbo.sailboatowners.com · “Hunter 34 Steering ... Merriman / Yacht Specialties Pedestal Control Head” — owners' association, shop.hunterowners.comThe Hunter 34 owner's manual has a typical steering system drawing: pedestal wheel, wire over an idler plate with sheaves to a rudder quadrant, and emergency tiller access through the lazarette. Pedestal steering is on the 1983 standard-equipment list. The Yacht Specialties brand comes only from the HunterOwners parts listing.
Thrusters and steering are often replaced — check the units on your boat before ordering parts.
B&R rig (swept spreaders, no backstay). Fin keel with spade rudder, 5.5 ft; shoal keel 4.25 ft with about 220 lb more ballast. PS says 1985 boats carry about 450 lb more ballast than 1983 boats, and it calls the boat tender and prone to weather helm. Over 800 were built in just over three years (PS); replaced by the Legend 35. Tri-cabin layout. Galley was specified with a kerosene stove, later alcohol. PS says over 800 were built and calls it a single-skin (uncored) hull with a molded liner.
Engines fitted
-
Yanmar 3GMF (3GM, freshwater cooled) — 22.5 hp, diesel, single
standard
Practical Sailor: most Hunter 34s have the Yanmar 3GMF, about 22.5 hp; check for freshwater vs raw-water cooling. Wikipedia also lists a Yanmar 3GM.Sources: practical-sailor.com · en.wikipedia.org
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Westerbeke 21 — diesel, single
standard
Practical Sailor: some of the very first Hunter 34s had the Westerbeke 21; the reviewer prefers the Yanmar.Sources: practical-sailor.com
Boats of the same model can differ — check which engines yours actually has before ordering parts.
Generator
No generator in the 1983 standard-equipment sheet, owner's manual or wiring/plumbing diagrams.
Manuals and brochures online
- Owner's manual Hunter 34 owner's manual with 1983 introduction brochure, standard equipment and B&R rig tuning notes (1983-1987) — sbo.sailboatowners.com
- Document HunterOwners.com downloads for the Hunter 34 (several owner's manual copies, plumbing and wiring diagrams) (1983-1987) — hunter.sailboatowners.com
Hosted by the builder or an owners' association; they own the copyright.
Known problems for this model
-
Undersized original rudder cracking steering
Several early boats had the original rudder crack; Hunter replaced it with a larger high-performance rudder, which was standard on 1984-85 boats. Check which rudder is fitted.practical-sailor.com
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B&R rig with no backstay or inner stay rigging
The swept-spreader B&R rig is hard to tune. With no forward lowers, baby stay or inner forestay, a headstay failure can bring the mast down, and one owner lost the rig this way.practical-sailor.com
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Rusting iron keel and keel seam hull
The iron keel rusts, and the keel-to-hull seam can open up and let in salt water, which PS thinks may become structural over time.practical-sailor.com
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Deck molding flaws and weak lids deck
Owners reported gelcoat voids and blisters, one case of cockpit skin separating from the core, slippery molded nonskid, and locker and anchor-well lids that crack.practical-sailor.com
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Deck-stepped mast step leak and damage deck
One owner described mast step leaks and damage, which is a known issue on the H34. The previous owner had repaired it with an aluminum beam and epoxy.cruisersforum.com
4 more
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Liner traps stuffing-box water hull
The first small Hunter with a molded hull liner; stuffing-box leaks can collect between hull and liner rather than draining to the bilge.practical-sailor.com
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Early Yanmar vibration and raw-water cooling engine
Some early Yanmars had vibration problems, and some lacked freshwater cooling. For salt water, confirm the engine is freshwater cooled.practical-sailor.com
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Holding tank odor plumbing
Owners report a smelly holding tank system that PS blames on porous hose and a poor vent design.practical-sailor.com
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Hull-deck joint bolts not torqued other
Owners reported QC problems: chafed hoses, bad system hookups and leaking ports and hatches. One found hull-deck joint bolts that had never been tightened.practical-sailor.com
Engines & parts
Yanmar 3GM / 3GM30F parts: good
Factory standard engine — you entered “Yanmar 3GMF (3GM, freshwater cooled)”
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)
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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
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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 separator | 250 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 silencer | 250 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.
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Other Hunter models
- Hunter 27 1975–1984
- Hunter 30 1973–1983
- Hunter 33 1977–?
- Hunter 336 1995–?
- Hunter 356 2000–?
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.