Nordhavn 47
Built 2003–2008
About the Nordhavn 47
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 2003–2008
- Length
- 47.67 ft
- Waterline
- 43.33 ft
- Beam
- 16.08 ft
- Draft
- 5.5 ft
- Displacement
- 85,000 lb
- Hull
- fiberglass
- Hull / keel
- full displacement
- Propulsion
- inboard
- Fuel
- 1,470 gal
- Water
- 400 gal
- Holding
- 120 gal
- Water heater
- 11 gal · AC + engine · standard
- Generator
- factory option
- Bow thruster
- factory option
- Steering
- hydraulic · Hynautic, SeaStar
Tank capacities — where the figures come from
-
Fuel 1,470 gal
“1,470 gals. / 5564.6 L” — builder, nordhavn.comThe builder's spec table gives 1,470; our earlier figure was 1,450.
-
Water 400 gal
“400 gals. / 1514.2 L” — builder, nordhavn.com
-
Holding 120 gal
“120 gals. / 454.2 L” — builder, nordhavn.comThe builder also lists a separate 110 gal tank for sink and shower (gray) water, not counted here.
-
Water heater 11 gal · AC + engine · standard (Seaward, Atwood)
“Water heater: Seaward #S1150 or Attwood 11 gallon (41.6 Liter) for 220 volt and heat exchanger operation” — builder, nordhavn.comBuilder spec: 11 gal, 220 V element plus engine heat exchanger; Seaward or Atwood.
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 factory option
“Battery cable: to be "00" for general battery leads with "0000" for starting and optional bow thruster” — builder, nordhavn.comThe builder's specification treats the bow thruster as optional; make and size aren't given.
-
Stern thruster unknown
The builder's standard specification mentions no stern thruster, and no option list was found.
-
Steering hydraulic · Hynautic, SeaStar
“Hynautic hydraulic steering system comprised of the following components: Slave cylinder SeaStar #HC5373HY Helm pump mo” — builder, nordhavn.comBuilder spec: Hynautic hydraulic (H-21 helm pump, R-06 reservoir, MSV-21 relief valve) with a SeaStar HC5373HY cylinder, 18 in wheel with power knob, emergency tiller and by-pass valve.
Thrusters and steering are often replaced — check the units on your boat before ordering parts.
Sources disagree on main engine hp, wing engine hp — left blank rather than guessed.
About 60 built. Solid fiberglass, ballasted (about 6,000 lb) full-displacement hull; commercial-grade doors and windows; standup engine room reached from the master. Keel-cooled 170 hp Lugger with dry-stack exhaust cruises 8 knots with nearly 3,000 nm range; 40 hp Yanmar auxiliary aft of the main engine. About 60 built (HMY).
Engines fitted
-
Lugger LP668T (6-cyl) — 174 hp, diesel, single
standard
Engine in Power & Motoryacht's 2003 test boat; keel-cooled, dry exhaust. HMY rounds the main engine to 170 hp.Sources: powerandmotoryacht.com · hmy.com
-
Lugger L1066T.2 — 165 hp, diesel, single
standard
Main engine named in Nordhavn's own retired-model spec sheet (165 hp at 2,400 rpm, ZF 220 gear); probably the later-production engine.Sources: nordhavn.com
- Lugger 170 hp — 170 hp, diesel standard
-
Yanmar wing / get-home engine — 40 hp, diesel, single
factory option
Auxiliary wing engine, not main propulsion. HMY says 40 hp; Power & Motoryacht's test boat had a 35 hp Yanmar; Nordhavn's spec sheet treats the wing engine as optional.Sources: hmy.com · powerandmotoryacht.com · nordhavn.com
Boats of the same model can differ — check which engines yours actually has before ordering parts.
Generator
factory option
Builder lists the generator as optional with a foundation for up to 16 kW; one listing shows a 16 kW Northern Lights.
-
Northern Lights M843NK — 12 kW, diesel
The builder names no make; a 12 kW Northern Lights is seen on two Nordhavn 47s for sale (model M843NK on one). Another listing has a 16 kW Northern Lights.“Northern Lights 12KW generator – Model M843NK” — broker listing, nordhavn-yachts.com · “12 kW Northern Lights generator with sound shield” — broker listing (2005), jmys.com
Generators are often replaced or added — check the unit's own plate before ordering parts.
Manuals and brochures online
- Spec sheet Nordhavn 47 retired-model page with specifications (2003-2008) — nordhavn.com
Hosted by the builder or an owners' association; they own the copyright.
Known problems for this model
No well-sourced problem reports found yet.
Engines & parts
Lugger (Northern Lights) L668D / L1066 and other Lugger propulsion diesels parts: good
Factory standard engine — you entered “Lugger L1066T.2”
Northern Lights starts with John Deere blocks (the 668D is a Deere six) and replaces most external components with heavier marine parts. Base parts come from the Deere network; marine parts from Northern Lights dealers such as RPM Diesel.
Parts sources: RPM Diesel (Northern Lights/Lugger parts)
Common problems (1)
-
PTO clutch wear running gear
Owners replace Lugger PTO clutches used to drive hydraulic pumps.youtube.com
Maker’s service schedule (15)
| Engine oil & filter change | 250 hrs or 1 yr | “change the engine oil and filter after the first 50 hours of operation, the first 100 hours and every 250 hours thereaft” — manufacturer, northern-lights.com |
| Fuel filters & water separator L1064/L1066, mechanically controlled fuel system | 250 hrs or 1 yr | “Change the element every 250 hours (500 for electronically controlled fuel system units)” — manufacturer, northern-lights.com |
| Raw-water pump impeller L1064/L1066, mechanically controlled fuel system | 600 hrs or 1 yr | “EVERY 600 HOURS / YEARLY: ... SP20 Change impeller in raw water pump” — manufacturer, northern-lights.com |
| Raw-water pump impeller L1064/L1066, electronically controlled fuel system | 500 hrs or 1 yr | “EVERY 500 HOURS/ YEARLY: ... SP20 Change impeller in raw water pump” — manufacturer, northern-lights.com |
| Engine pencil zincs | 250 hrs or 1 yr | “Check them faithfully every 250 hours.” — manufacturer, northern-lights.com |
| Air filter / intake silencer L1064/L1066, mechanically controlled fuel system | 600 hrs or 1 yr | “Replace filter every 600 hours, or yearly, whichever comes first for mechanically controlled fuel system engines.” — manufacturer, northern-lights.com |
| Valve clearance check / adjust L1064/L1066, electronically controlled fuel system | 2,000 hrs | “EVERY 2000 HOURS: SP6 Check & adjust valve clearance” — manufacturer, northern-lights.com |
| Heat exchanger & oil cooler cleaning L1064/L1066, electronically controlled fuel system | 2,000 hrs | “EVERY 2000 HOURS: ... SP17 Check and clean heat exchanger / SP18 Check and clean gear oil cooler” — manufacturer, northern-lights.com |
| Injector test / service L1064/L1066, mechanically controlled fuel system | 600 hrs or 1 yr | “EVERY 600 HOURS / YEARLY: ... SP11 Check injectors” — manufacturer, northern-lights.com |
| Injector test / service L1064/L1066, electronically controlled fuel system | 500 hrs or 1 yr | “EVERY 500 HOURS/ YEARLY: ... SP11 Check injectors” — manufacturer, northern-lights.com |
| Turbocharger inspection L1064/L1066, mechanically controlled fuel system | 600 hrs or 1 yr | “It should be done by an authorized dealer every 600 hours (500 hours for electronically controlled fuel system engines).” — manufacturer, northern-lights.com |
| Turbocharger inspection L1064/L1066, electronically controlled fuel system | 500 hrs or 1 yr | “every 600 hours (500 hours for electronically controlled fuel system engines)” — manufacturer, northern-lights.com |
| Drive belts inspect / replace L1064/L1066, mechanically controlled fuel system | 600 hrs or 1 yr | “EVERY 600 HOURS / YEARLY: ... SP5 Check belt condition” — manufacturer, northern-lights.com |
| Drive belts inspect / replace L1064/L1066, electronically controlled fuel system | 250 hrs or 1 yr | “EVERY 250 HOURS: ... SP5 Check V-belt condition” — manufacturer, northern-lights.com |
| Replace crankshaft vibration damper | 4,500 hrs or 5 yrs | “The vibration damper assembly should be replaced every 4500 hours or 60 months, whichever occurs first” — manufacturer, northern-lights.com |
Service part numbers (17)
| Oil filter L439, L439T, L668D, L668T (older 668 series) |
Northern Lights (Lugger) 24-00000 | “L439, L439T, L668D, L668T 24-00000 24-51005 (ring clamp) 24-52259 (box) 24-21000” — manufacturer, northern-lights.com |
| Oil filter LP668D, LP668T (and LP445T) |
Northern Lights (Lugger) 24-01002 | “LP445T, LP668D, LP668T 24-01002 24-51005 24-21000” — manufacturer, northern-lights.com |
| Oil filter L1066T, L1066A, L1066H |
Sources disagree: 24-09501 / RE504836 | “L1066T 24-09501 RE509031 24-21000 N/A (Quick Reference Filter Chart, 12/17)” — manufacturer, northern-lights.com · “19 RE504836 1 Oil Filter (Oil Filter Assembly, L1066T / L1066A / L1066H; catalog 01/09)” — manufacturer, northern-lights.com |
| Fuel filter L668D/L668T (ring clamp; box type 24-52259) and LP668D/LP668T |
Northern Lights (Lugger) 24-51005 | “L439, L439T, L668D, L668T 24-00000 24-51005 (ring clamp) 24-52259 (box)” — manufacturer, northern-lights.com |
| Fuel filter L1066T (DE10 fuel system) |
John Deere (via Northern Lights) RE509031 | “L1066T 24-09501 RE509031 24-21000” — manufacturer, northern-lights.com |
| Fuel filter L1066A (VP44 system), secondary filter |
John Deere (via Northern Lights) RE67901 | “L1066A 24-09501 RE67901 RE509208(2) 24-21000” — manufacturer, northern-lights.com |
| Fuel filter L1066H, secondary filter |
John Deere (via Northern Lights) RE509032 | “L1066H 24-09501 RE509032 RE509036(2) 24-25002” — manufacturer, northern-lights.com |
| Fuel pre-filter / separator L1066A (VP44), engine-mounted primary filter / water separator |
John Deere (via Northern Lights) RE509208 | “L1066A ... RE67901 RE509208(2) ... note 2 - Water separator.” — manufacturer, northern-lights.com |
| Fuel pre-filter / separator L1066H, engine-mounted primary filter / water separator |
Sources disagree: RE509036 / RE517180 | “L1066H 24-09501 RE509032 RE509036(2) 24-25002 (note 2 - Water separator; chart 12/17)” — manufacturer, northern-lights.com · “6 RE517180 1 Fuel Filter (Primary Fuel Filter/ Water Separator, L- M1066H; catalog 01/09)” — manufacturer, northern-lights.com |
| Raw-water impeller raw water pump 25-19501: L1066T and LP668D/LP668T |
Northern Lights (Lugger) 25-11011 | “12 25-11011 1 Impeller with Gasket (Raw Water Pump Assembly 25-19501; L- M1066T)” — manufacturer, northern-lights.com |
| Raw-water impeller raw water pump 25-19522: L1066A and L1066H |
Northern Lights (Lugger) 25-15704 | “13 25-15704 1 Impeller (Raw Water Pump Assembly 25-19522; L1066A- H)” — manufacturer, northern-lights.com |
| Drive belt L1066T, L1066A, early L1066H, LP668T: medium-frame alternator |
John Deere (via Northern Lights) R123437 | “R123437 1 Drive Belt, L- M1066T, M99C2, L1066A, M1066A1, A2, A3” — manufacturer, northern-lights.com |
| Drive belt L1066H late production: medium-frame alternator |
John Deere (via Northern Lights) R123308 | “R123308 1 Drive Belt, L1066H Late Production and M1066H all” — manufacturer, northern-lights.com |
| Drive belt LP668D (non-turbo): medium-frame alternator |
John Deere (via Northern Lights) R123439 | “R123439 1 Drive Belt, LP668D (non-turbo)” — manufacturer, northern-lights.com |
| Air filter L668D/L668T, LP668D/LP668T, L1066T, L1066A |
Northern Lights (Lugger) 24-21000 | “L1066T 24-09501 RE509031 24-21000” — manufacturer, northern-lights.com |
| Air filter L1066H |
Northern Lights (Lugger) 24-25002 | “L1066H 24-09501 RE509032 RE509036 24-25002” — manufacturer, northern-lights.com |
| Zinc / anode heat-exchanger-cooled L1066 and LP668 |
Northern Lights (Lugger) 21-10010 × 2 | “24 21-10010 2 Zinc Electrode (Heat Exchanger L-M1066T)” — manufacturer, northern-lights.com |
| Thermostat L1066T/A/H, 180 F |
Northern Lights (Lugger) 35-10000 Replaces 35-10002 |
“27 35-10000 1 Thermostat, 180 F/ 82 C (formerly #35-10002) (Expansion Tank Assembly)” — manufacturer, northern-lights.com |
| Thermostat LP668D/LP668T, 180 F |
Northern Lights (Lugger) 35-11000 Replaces 35-10002 |
“27 35-11000 1 Thermostat, 180 F/ 82 C (formerly #35-10002)” — manufacturer, northern-lights.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.
Steering
Hynautic — K-series pressurized hydraulic steering (H-series helms, K-series cylinders) parts: obsolete
SeaStar bought Hynautic and kept making components and rebuild kits for years; after Dometic bought SeaStar, Hynautic pages and parts were removed from Dometic's site. Helms H-21 through H-52 and cylinders K-6 through K-31 are discontinued. Seatech Marine Products publishes SeaStar direct-replacement equivalents (e.g., H-50/H-52 replacement kits usable in the pressurized system with a non-vented fill plug) and offers rebuild services; independent hydraulic shops rebuild helms and cylinders for roughly $250–350 each. Kobelt/Accu-Steer also supply steering and power-assist equipment used on larger boats.
Parts sources: Seatech Marine Products (Hynautic alternatives & rebuilds), Kobelt (marine steering systems)
Common problems (3)
-
Helm pump shaft seal leaks steering
The upper helm shaft seal deteriorates from sun, salt and dirt and weeps oil; raising system pressure is only a stopgap, and the helm must be removed and resealed.samsmarine.com · trawlerforum.com · youtube.com
-
Cylinder rod seal leaks steering
Damaged wiper/rod seals let fluid out the end of K-6 type cylinders.facebook.com
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Olive-type tubing fittings leak steering
Some owners dislike Hynautic's olive compression fittings on plastic tubing because they are prone to leaks.trawlerforum.com
Teleflex / SeaStar (Dometic) — SeaStar hydraulic steering (helms and cylinders) parts: good
Current product line sold by Dometic; helms, cylinders, complete kits and seal kits (e.g., HS5157 front-mount cylinder seal kit) are widely stocked by West Marine, Seatech and others. SeaStar also supplies the replacement parts for discontinued Hynautic and Capilano components.
Parts sources: Dometic (SeaStar hydraulic steering), West Marine, Seatech Marine Products
Common problems (2)
-
Leaking helm or cylinder seals steering
Weeping at the helm shaft or cylinder seal glands is the most common complaint; seal kits restore them.seaknights.com · westmarine.com
-
Air in the system / spongy steering steering
Spongy or wandering steering usually means a leak has let air in; owners bleed the system (often with a long-hose method) after fixing the leak.greatgrady.com · facebook.com
Teleflex / Morse (SeaStar Solutions) — Mechanical rotary/rack cable steering incl. NFB (no-feedback) helms parts: good
Mechanical helms and SSC-series steering cables, including NFB 4.2 rotary kits and Safe-T helms, remain in production and are sold by Jamestown Distributors, Marine Parts Source and most chandleries.
Parts sources: Jamestown Distributors (Teleflex NFB), Marine Parts Source
Common problems (2)
-
Stiff or seized steering cable steering
Corrosion inside the outboard tilt tube or the cable itself makes steering stiff or locks it; the usual cure is cleaning the tilt tube and replacing the cable, often together with the helm.noreast.com · facebook.com
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Torque feedback at the wheel steering
Older helms transmit engine torque to the wheel; NFB helms with a clutch mechanism are the common upgrade.jamestowndistributors.com · marinepartssource.com
Model sources (5)
hmy.com · powerandmotoryacht.com · nordhavn.com · nordhavn-yachts.com · jmys.com
Other Nordhavn models
- Nordhavn 35 Coastal Pilot 2001–2005
- Nordhavn 40 1999–2011
- Nordhavn 46 1989–2003
- Nordhavn 50 1996–2006
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.