Beneteau Oceanis 373 Engine Options; some parts are engine model specific. Please identify the engine model before ordering parts.
The engine options listed in the Bénéteau parts/specification catalog for the Oceanis 373:
Option Code
Manufacturer
Model
Power (CV / HP)
Fuel Type
C5
Yanmar
3GM30F
27 CV (~27 HP)
Diesel
S8
Volvo Penta
MD2030
28 CV (~28 HP)
Diesel
DB
Yanmar
3YM30
29 CV (~29 HP)
Diesel
DE
Yanmar
3JH4E
40 CV (~40 HP)
Diesel
CV stands for cheval-vapeur (metric horsepower), standard in French manufacturer documentation.
Cutlass Bearing / Shaft Seal
Description
Qty
Part Number
Price + Shipping (2026)
Cutlass Bearing – 30X40X100+L R
1
037330
$64.00
SSEAL Prop Shaft VOLVO D30 #828
1
reference Number
Description
Qty
Price +Shipping (2026)
5
063018 (obsolete part)
Curtain KIit Rigid 14373
1
(obsolete part)
7
062813
WINDSCREEN 14373
1
$2,384.00
Location
Part #
Discription
Price + Shipping (2026)
31
064377
STERN TUBE EPOXY 30X48X 900+P
$1948.00
Location
Part #
Description
Price + Shipping (2026)
31
064377
STERN TUBE EPOXY 30X48X 900+P
$1,948
33
SEAL PROP SHAFT VOLVO
146.74
429
037330
CUTLASS BEARING 30X40X100+L R
$64.00
421
422
424
425
423
426
The description STERN TUBE EPOXY 30X48X 900+P breaks down into its component type, construction material, dimensions, and manufacturing specification:
Breakdown
STERN TUBE: The driveline stern tube (French: tube d’étambot), which is glassed or bonded into the boat’s hull deadwood/skeg to provide the pass-through tunnel for the inboard propeller shaft and house the cutlass bearing and shaft seal (stuffing box / dripless seal).
EPOXY: Constructed from epoxy fiberglass (GRP resin composite), providing corrosion resistance and structural bonding compatibility with the fiberglass hull.
30:Propeller Shaft Diameter = 30 mm (the nominal shaft size designed to pass through the system and match the internal cutlass bearing bore).
48:Outer Diameter (OD) = 48 mm (the outer diameter of the tube where the shaft seal/flexible hose connects on the engine room side and glassed into the hull).
900:Total Length = 900 mm (length of the tube section, often cut down or glassed to fit specific hull layouts).
+P:Presse-étoupe / Bearing Profile Fitment (in Bénéteau nomenclature, this designates a pre-machined internal recess, stop lip, or aft cutlass bearing prep / shaft-seal hose interface sleeve).
