Catalina 320 Hull History and Design Changes
The C320 has evolved greatly since its introduction in 1993. This table attempts to capture as much
information about where and what changes were made along the way. It is quite incomplete at this point
but will improve over time if owners contribute data.
If you own a C320 and can provide details about your hull, model year, and any other info that will help
paint a more complete picture, please feel free to send your information to the webmaster. Specifically,
we don't know which hull numbers belong to which model year, unique features or problems you've had
Year Hull #s Comments
1993 1-18 Model Introduced. List price ~$60k. Perkins M30 Engine. Shallow gridpan Bilge.
1994 19?-166? Perkins M30 Engine. Shallow gridpan Bilge
1995 174-255? Hull Number Range not complete 181 Perkins M30 Engine. Shallow gridpan Bilge
227 Perkins M30 Engine. Shallow gridpan Bilge
238 Perkins M30 Engine.
246 Westerbeke 29B Engine. Deeper Bilge, better draining weep-holes, 7” more draft (4'10”)
1996 303?-384? Hull Number Range not complete
303 Westerbeke 29B Engine
317 Westerbeke 30B-3 Engine
327 Westerbeke ?? Engine
328 Yanmar 3GM30F Engine
331 Westerbeke ?? Engine
390 Yanmar 3GM30F Engine
1997 448?-468? Stern seats bumped out, cupholders added
404 Bad vinylester, factory repaired. Total 3 boats
~446? V-berth Bulkhead cutouts eliminated
447 V-berth Bulkhead cutouts eliminated, Yanmar 3GM30F Japanese Engine, Old Instrument
Pod, 1-2-Both Switch (old electrical panel)
1998 488?-558? Head redesigned - one mirror eliminated, cabinet smaller, shelf larger, fiddle added
488 Yanmar 3GM30F Engine. Small aft access panel. Battery switch on starboard wall
492 Yanmar, no escape hatch, old elect panel w/ 1-2-Both switch. At some point, galvanic isolation added.
1999 493?-675? Change to surface mount galley sink (was undermount); Aft Cabin Escape Hatch (after 492, before 592) incls 592, 675
621 Has Yanmar Euro 3GM30F engine, new electrical panel, old instrument pod
675 Improved Inst. Pod
2000 687?-772? In-mast Furling option available
688 Has dark blue canvas, oval shape ports, molded seats on stern platform, toe rails extended
futher back than earlier models, upgraded main traveler (2000 model) Euro Yanmar
690 Japanese Yanmar
692 Euro Yanmar
772 Yanmar 3GM30F-Japan-Wing Keel
2001 7?? - ???
808 Built in 2000 - Japanese 3GM30F - Wing Keel
809 Built in 2000 - Japanese 3GM30F - Wing Keel
847 Keel recast back to 4'4” draft (using 310 keel)
859 Built in June 2001 and is 2002 model year. I believe this HID is near the model year
changeover. Bronze prop shaft and traditional stuffing box
914 known to be a 2002
2003 ???-??? Change to SS prop shafts and dripless packing?
992 known to be a 2003
2004 ???-??? Innerspring mattress becomes std equip. Change from ProMariner to Charles chargers?
2005 ???-??? Changed to Yanmar 3YM30
1035 Yanmar 3YM30 Engine
1104? Mfg at FL plant Mk II (Introduced Oct. 2006: Numerous changes: New deck mold, more headroom,
new AC and DC panels (non-opening), galley sink splash guard, 2nd hanging locker, different cabin
opening hatch configuration, shoebox joint and rubrail carried around transom. Enlarged V-berth
(smaller anchor locker), ball & socket for rig loads (no chainplates). Deck liner extends length of
boat and has A/C ducts. Water increased to 51gal. Has 3YM 29hp Yanmar
Catalina 320 International Association