Kadey-Krogen 48 North Sea
Built 1996–2010
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About the Kadey-Krogen 48 North Sea
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1996–2010
- Length
- 53 ft
- Waterline
- 45.42 ft
- Beam
- 16.67 ft
- Draft
- 5 ft
- Displacement
- 56,450 lb
- Hull / keel
- full displacement
- Propulsion
- inboard
- Fuel
- 1,000 gal
- Water
- 400 gal
- Generator
- fitted on some boats
Tank capacities — where the figures come from
-
Fuel 1,000 gal
“her 1,000-gallon fuel capacity” — review (1995-2010), yachtingmagazine.com · “FUEL: 1,000 gallons | 3,785 L (Aluminum)” — broker listing, kadeykrogen48.comYachting magazine (2016, with figures from Kadey-Krogen's vice president) and a broker's spec sheet for a typical 48 agree; the builder's site couldn't be checked.
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Water 400 gal
“FRESH WATER: 400 gallons | 1,514 L (Stainless Steel)” — broker listing, kadeykrogen48.com · “Fresh Water: 400 Gallons” — search excerpt (2010), curtisstokes.netListings agree. Kadey-Krogen's spec for its later 48 AE model also gives 400 gal in total.
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Holding unknown
“Holding Tank: 100 Gallons” — search excerpt (2010), curtisstokes.net · “HOLDING BLACK: 80 gallons | 303 L (Fiberglass)” — broker listing, kadeykrogen48.comOur earlier figure of 125, from the HMY powerboat guide, isn't seen elsewhere; listings give 80 and 100. Kadey-Krogen's later 48 AE has a 100 gal fiberglass tank, which suggests 100 may be right for late North Seas, but no builder figure for the North Sea itself was found.
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Water heater unknown (Raritan)
“Raritan 20-gal water heater” — broker listing (1999), bluewateryachtsales.comOne broker listing (a 1999 boat) shows a 20 gal Raritan. For comparison only, Kadey-Krogen's spec for the successor 48 AE also lists a 20 gal Raritan, but that is a different model.
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
“this beautiful boat is well equipped with a hydraulic bow thruster” — search excerpt, captainchrisyachtservices.com · “featuring walk-around decks, a reliable Caterpillar 3208 engine, Northern Lights generator, stabilizers, bow thruster” — broker listing (1999), sjyachts.comA training account of a newly delivered 48 North Sea AE shows a hydraulic bow thruster fitted at delivery, and a 1999 listing has one; neither says standard or option, and no builder list was found.
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Steering unknown
No builder, owners' or review source on the steering was found.
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.
Taiwan-built, ballasted (about 4,500 lb) raised-pilothouse trawler offered with several two- and three-stateroom layouts; Standard (walkaround) and Widebody versions. Over 50 built (figure is a minimum). Single 210 hp Cat gives nearly 2,000 nm at 8 knots.
Engines fitted
-
Caterpillar — 210 hp, diesel, single
standard
Yachting Magazine: early boats had a single 210 hp Cat; later boats switched to John Deere. Cat model number not given.Sources: yachtingmagazine.com
-
John Deere 6068TFM50 — 225 hp, diesel, single
standard
Later-production standard engine. BoatTEST's 48 North Sea test had the 225 hp 6068; a spec sheet and a 1998 listing also show 225 hp. Yachting Magazine rounds it to 200 hp.Sources: boattest.com · kadeykrogen48.com · yachtingmagazine.com
-
John Deere — 135 hp, diesel, twin
factory option
Rare twin-engine boat: 1996 hull #2 has twin John Deeres, 270 hp combined (hp per engine inferred from the total).Sources: unitedyacht.com
Boats of the same model can differ — check which engines yours actually has before ordering parts.
Generator
Northern Lights 12 kW on two listed boats a decade apart; no builder document or review for this model found.
-
Northern Lights — 12 kW
On two listed boats (1999, 2010); standard vs option not documented.“Northern Lights 12 kW generator (3657 hours)” — broker listing (1999), bluewateryachtsales.com · “Northern Lights 12 kw generator in sound shield (1704 hours)” — broker listing (2010), breweryacht.com
Generators are often replaced or added — check the unit's own plate before ordering parts.
Known problems for this model
No well-sourced problem reports found yet.
Engines & parts
John Deere 4045 / 6068 (marine) parts: good
Factory standard engine — you entered “John Deere 6068TFM50”
Huge agricultural/industrial population and a wide Deere dealer network keep base-engine parts easy to get; marinization parts vary by who marinized the engine (Deere, Lugger/Northern Lights, etc.). Industrial 6068s have run tens of thousands of hours without head removal.
Parts sources: RPM Diesel (Northern Lights/Lugger/Deere parts)
Common problems (3)
-
Low-load operation engine
Long periods at very low load can glaze cylinders; owners are advised to keep engines at operating temperature and run them up periodically.mvdirona.com
-
Oil leaks at filter supply tube O-rings engine
A recurring 6068 question is oil leaking from O-rings on the oil filter supply tubes.facebook.com
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Electronic throttle/sensor faults (4045T) fuel
Electronically controlled 4045s can buck and smoke under throttle from sensor problems.downeastboatforum.com
Maker’s service schedule (17)
| Engine oil & filter change | 250 hrs or 6 mo | “250 Hour-6 Month Service ... Change engine oil and filter.” — manufacturer, manuals.deere.com |
| Engine oil & filter change 6068SFM50 with PLUS-50 oil and JD extended-life filter (2002 manual OMRG28997) | 500 hrs or 1 yr | “the oil and filter change interval is 500 hours or every 12 months, whichever comes first.” — manufacturer, westdiesel.com |
| Fuel filters & water separator | 500 hrs or 1 yr | “500 Hour/12 Month Service ... Replace fuel filter element.” — manufacturer, manuals.deere.com |
| Raw-water pump impeller current manual OMRG35856 (Tier 2 marine incl. 6068SFM75/AFM75) | 2,000 hrs or 2 yrs | “2000 Hour-24 Month Service ... Inspect and repair sea water pump.” — manufacturer, manuals.deere.com |
| Raw-water pump impeller 2002 manual OMRG28997 (earlier PowerTech marine engines) | 1,000 hrs or 2 yrs | “1000 Hour/24 Month Service ... Inspect and repair sea water pump.” — manufacturer, westdiesel.com |
| Engine pencil zincs | 250 hrs or 6 mo | “the zinc plugs MUST BE inspected every 250 Hours.” — manufacturer, manuals.deere.com |
| Coolant replacement & freeze-point test coolant other than John Deere COOL-GARD | 2,000 hrs or 2 yrs | “If COOL-GARD is not used, the flushing interval is 2000 hours or 24 months of operation.” — manufacturer, manuals.deere.com |
| Coolant replacement & freeze-point test John Deere COOL-GARD coolant | 3,000 hrs or 3 yrs | “When John Deere COOL-GARD is used, the drain interval is 3000 hours or 36 months.” — manufacturer, manuals.deere.com |
| Valve clearance check / adjust | 2,000 hrs or 2 yrs | “2000 Hour-24 Month Service ... Check and adjust engine valve clearance.” — manufacturer, manuals.deere.com |
| Heat exchanger & oil cooler cleaning | 500 hrs or 1 yr | “500 Hour/12 Month Service ... Inspect and clean heat exchanger and aftercooler core.” — manufacturer, manuals.deere.com |
| Turbocharger inspection engines with sea-water aftercooler (e.g. 6068SFM50/SFM75/AFM75) | 500 hrs or 1 yr | “500 Hour/12 Month Service ... Inspect and clean heat exchanger and aftercooler core.” — manufacturer, manuals.deere.com |
| Drive belts inspect / replace manual belt tensioner | 250 hrs or 6 mo | “250 Hour-6 Month Service ... Check belt tension and wear.” — manufacturer, manuals.deere.com |
| Drive belts inspect / replace automatic belt tensioner | 500 hrs or 1 yr | “500 Hour/12 Month Service ... Check automatic belt tensioner and belt wear.” — manufacturer, manuals.deere.com |
| Coolant analysis and SCAs, check cooling system, pressure test cooling system current manual OMRG35856 | 500 hrs or 1 yr | “500 Hour/12 Month Service ... Coolant solution analysis ... Pressure test cooling system.” — manufacturer, manuals.deere.com |
| Check crankshaft vibration damper (6-cyl) and test thermostats current manual OMRG35856 | 2,000 hrs or 2 yrs | “2000 Hour-24 Month Service ... Check crankshaft vibration damper. ... Test thermostats.” — manufacturer, manuals.deere.com |
| Clean crankcase vent tube / replace crankcase vent filter (if equipped) | 500 hrs or 1 yr | “500 Hour/12 Month Service ... Clean crankcase vent tube.” — manufacturer, manuals.deere.com |
| Check engine mounts | 250 hrs or 6 mo | “250 Hour-6 Month Service ... Check engine mounts.” — manufacturer, manuals.deere.com |
Service part numbers (11)
| Oil filter Tier 2 and later marine engines (4045TFM75, 6068AFM75, 6068AFM85) |
John Deere RE504836 | “OIL FILTER RE504836 (8843) (8863) (8864) (8865)” — manufacturer, deere.com |
| Oil filter Tier 1 marine engines (4045TFM50, 6068TFM50) |
John Deere DZ118286 | “OIL FILTER DZ118286 (8852, 8851, 8850, 8802)” — manufacturer, deere.com |
| Fuel filter final fuel filter, Tier 1 engines (4045TFM50; also listed for 6068TFM50) |
John Deere RE62420 | “FINAL FUEL FILTER RE62420 (35AG, 35CU, 35CV)” — manufacturer, deere.com |
| Fuel filter 4045TFM75 secondary element (option 35DH) |
John Deere RE520842 | “FUEL FILTER SECONDARY FILTER ELEMENT RE520842 (35DH)” — manufacturer, deere.com |
| Fuel filter 6068AFM75 / 6068AFM85 / 6068SFM75 (option codes 81AG-81BT, 35EK, 8172, 8173) |
John Deere RE527961 | |
| Fuel pre-filter / separator engine primary fuel filter element (4045TFM50, 6068TFM50; 4045TFM75 option 8154) |
John Deere RE62425 | “PRIMARY FUEL FILTER RE62425 (35CU) (35CV)” — manufacturer, deere.com |
| Fuel pre-filter / separator 4045TFM75 engine primary fuel filter element (option 8150) |
John Deere RE521540 | “FUEL FILTER PRIMARY FILTER ELEMENT RE521540 (8150)” — manufacturer, deere.com |
| Drive belt fan belt 1585-1587 mm (options 24CY / 24CZ / 24GC) |
John Deere DZ119515 | |
| Drive belt fan belt 1500 mm (options 240N / 24BN) |
John Deere R500277 | “FAN BELT R500277 (LGTH =1500 mm) (240N) (24BN)” — manufacturer, deere.com |
| Drive belt fan belt 1527 mm (options 24GB / 24KM) |
John Deere DZ118764 | |
| Crankcase vent (OCV) filter 6068AFM75 / 6068AFM85 (options 2971, 29AG) |
John Deere RE502284 | “CRANKCASE VENT SYSTEM RE502284 (2971) (29AG) 1500 hrs of operation” — manufacturer, deere.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 (8)
hmy.com · yachtingmagazine.com · boattest.com · kadeykrogen48.com · unitedyacht.com · bluewateryachtsales.com · breweryacht.com · sjyachts.com
Other Kadey-Krogen models
- Kadey-Krogen 36 Manatee 1984–1992
- Kadey-Krogen 39 1998–2008
- Kadey-Krogen 42 1977–1998
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.