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Beta 25 Marine

Beta Marine Beta 25 · BETA family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Beta 25 (Beta code BD902) is a marinized Kubota D902 industrial block; its internal service parts cross to Kubota D902 part numbers. source

25 hp18.4 kW

898 ccdisplacement

72×73.6 mmbore × stroke

3-cylcylinders

from 2011year range (approx)

NAaspiration

📋 Full specifications 8 🚜 Industrial / tractor base 588 🔧 Aftermarket 38

Cheaper-part coverage · 8/8

🚜 Base engine ✓🌀 Impeller ✓💧 Raw-water pump ✓🛢️ Oil filter ✓⛽ Fuel filter ✓🌡️ Thermostat ✓➰ Belt ✓⚓ Anode ✓

A ✓ means at least one cheaper channel — aftermarket, the tractor/industrial base engine, or a standard component — exists for this engine in that category.

Parts by section · 132 assemblies

The exploded parts diagrams for the Beta 25, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Cooling

Fig P10 — Keel cooled header tank -Cast tanks: Beta10, Beta14 & Beta20 to Mid 2002 Fig P13 — Heat exchange tank -Cast tanks: Beta 10, Beta 14 & Beta 20 to Mid 2002 Fig P14 — Heat exchange tank -Beta 10 / Beta 14 Fig P15 — Heat exchange tank - Beta 16 Fig P16 — Heat exchange tank -Beta 20 Fig P17 — Heat exchange tank - Beta 25(2011 Spec 3 Bolt Manifold Shown)Fig P18 — Heat exchange tubestack (2011 SPEC HEAT EXCHANGER MANIFOLD)Fig P19 — Heat exchange tubestack (with 22mm header & anode on aft end) From January 2002 Fig P24 — Sea water cooling pipe -From June 2013 Fig P11 — Beta 14, 16, 20 & 25 (non turbo) Greenline 3 Bolt Keel Cooled Manifolds - From 2011 Fig P10 — Keel cooled header tank -Cast tanks: Beta 10, Beta 14 & Beta 20 to Mid 2002 Fig P14 — Heat exchange tank -Beta 10 & Beta 14 Fig P17 — Heat exchange tank - Beta 25 (2011 Spec 3 Bolt Manifold Shown)

Drive Plate

Fig P44 — Gearbox driveplate

Electrical & Controls

Fig P57 — Alternator -12 Volt 65 Amp (Beta 10, Beta 14 & Beta 20 Only) to December 2010 Fig P63 — Simple 2A panel -LED type to May 2005 Fig P64 — Simple 2A panel -LAMP type from May 2005 Fig P65 — 2AB panel -LED type to May 2005 Fig P66 — 2AB panel -LAMP type from May 2005 Fig P67 — 2AB'V' panel -LAMP type to May 2005 Fig P68 — 2AB'V' panel -LAMP type from May 2005 Fig P69 — 2AB'V'W pushbutton control panel -LAMP type from May 2005 Fig P71 — SFIA 2B panel -LAMP type to May 2005 Fig P72 — SFIA 2B panel -LAMP type from May 2005 Fig P73 — Murphy deluxe 2C panel & senders -Seaspec 4 Lamp-to May 2005 Fig P74 — Murphy deluxe 2C panel & senders -Domestic 5 Lamp -to May 2005 Fig P75 — Murphy deluxe 2C panel & senders -Domestic 5 Lamp -from May 2005 Fig P76 — Panel gauges & senders Fig P77 — VDO Gauge accessories Fig P78 — Various electrical & panel parts and components Fig P27 — Wiring Harness & Switches Fig P28 — IPL AB Panel - LED Type to May 2005 Fig P29 — AB Panel - LAMP Type from May 2005 Fig P30 — IPL ABV Panel - LED Type to May 2005 Fig P31 — ABV Panel - LAMP Type from May 2005 Fig P32 — IPL Deluxe C Panel - SeaSpec 4 LAMP Type to May 2005 Fig P33 — Deluxe C Panel - Domestic 5 LAMP Type to May 2005 Fig P34 — IPL Deluxe C Panel - SeaSpec 5 LAMP Type from May 2005 Fig P35 — Panel Gauges and Senders Fig P36 — IPL Gauge Components Fig P37 — Control Panel Components Fig P64 — Alternator Accessories-12 Volt 55 & 65 Amp (Beta 10, Beta 14 & Beta 20 Only)Fig P76 — 2BW pushbutton control panel -LAMP type from May 2005 Fig P80 — 2CW Push button control panel -sea spec 4 lamp, from May 2005 Fig P81 — 2D Digital control panel

Engine

Fig P30 — Thermostat housing Fig P5 — Header tank manifold fixings -Cast tanks, Beta10, Beta14 & Beta20 to Mid 2002 Fig P56 — Alternators -12 Volt 40 & 60Amp -to January 2011 Fig P83 — Electrical, Oil system & Miscellaneous Fig P10 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline 3 Bolt Keel Cooled Manifolds - From 2011 Fig P12 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled Oil System Components Fig P21 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled Fuel System Components Fig P6 — Keel Cooled Fig P36 — Front mounted fuel filter system - From December 2005 Fig P5 — Header tank manifold fixings -Cast tanks, Beta 10, Beta 14 & Beta 20 to Mid 2002

Exhaust

Fig P28 — Water injection bends -Standard options Fig P29 — Water injection bends -non standard Fig P48 — Gearbox -PRM 80 & 120 Gear control brackets Fig P16 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled PRM80, 90, 120 & 125 Morse Control Brackets Fig P23 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled Speed Control Bracketry & Feet Fig P49 — Gearbox -PRM 80, 90, 120 & 125 Gear control brackets

Fast Moving

Fig FAST — Fast Moving Parts List

Fasteners

Fig P26 — Sea water cooling pipe -To October 2002 Fig P31 — Air inlet manifold & fuel system-Beta10, Beta14 & Beta20 to December 2005 Fig P32 — Air inlet manifold -Beta 10 / Beta 14 & Beta 16 From December 2005 Fig P33 — Air inlet manifold -Beta20 From December 2005 Fig P34 — Air inlet manifold -Beta 25 From December 2005 Fig P38 — Flywheel housing 080 020 Fig P39 — Speed control bracket -Beta 10, Beta 14 & Beta 16 only Fig P40 — Speed control bracket -Beta 20 only Fig P41 — Speed control bracket -Beta 25 only Fig P42 — Front feet Fig P43 — Rear feet Fig P45 — Driveplate spacer ring Fig P47 — Gearbox -TMC 40 Gear control brackets Fig P51 — Sump drain pump -Components Fig P53 — Alternators -12 Volt 40 Amp -from January 2011 Fig P54 — Alternators -12 Volt 75 Amp -from January 2011 Fig P55 — Alternator -12 Volt 100 Amp -from August 2014 Fig P58 — Alternator -12V 65A (Beta10, Beta14 & Beta20 Only) From Jan 2003-Dec 2010 Fig P6 — Header tank manifold fixings -Beta 10 / Beta 14 Fig P61 — Alternator Accessories-12 Volt 55 & 65 Amp (Beta 10, Beta 14 & Beta 20 Only)Fig P7 — Header tank manifold fixings -Beta 16 Fig P8 — Header tank manifold fixings -Beta 20 (2011 Spec 3 Bolt Manifold Shown)Fig P9 — Header tank manifold fixings -Beta 25 (2011 Spec 3 Bolt Manifold Shown)Fig P13 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled Oil System Components Fig P24 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled with 40 Amp Alternator - From January 2011 Fig P25 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled with 75 Amp Alternator - From January 2011 Fig P26 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled with 100/120 Amp Alternator - From Jan. 2011 Fig P31 — Air inlet manifold & fuel system-Beta 10, Beta 14 & Beta 20 to December 2005 Fig P32 — Air inlet manifold -Beta 10, Beta 14 & Beta 16 From December 2005 Fig P33 — Air inlet manifold -Beta 20 From December 2005 Fig P58 — Alternator -12 Volt 100/120 Amp -from August 2014 Fig P6 — Header tank manifold fixings -Beta 10 & Beta 14 Fig P61 — Alternator -12V 65 Amp (Beta 10, Beta 14 & Beta 20 Only) From Jan 2003-Dec 2010 Fig P88 — PTO Shaft & pulley -all engines from 2011

Filters

Fig P37 — Air filter

Fittings & Hose

Fig P11 — Keel cooled header tank -Beta 10 / Beta 14 / Beta 16 Fig P12 — Keel cooled header tank -Beta 20 / Beta 25 (2011 Spec 3 Bolt Manifold Shown)Fig P25 — Sea water cooling pipe -From December 2010 to June 2013 Fig P27 — Sea water cooling pipe -From October 2002 to December 2010 Fig P35 — Sea spec fuel system -to suit side mounted fuel filter to June 2005 Fig P36 — Front mounted fuel filter system - From December 2005 Fig P49 — Gearbox -TMC 60 Gear control bracket Fig P50 — Shallow sump Fig P79 — Expansion water bottle & spare parts list -all engines Fig P80 — Water drain components -all engines Fig P84 — Installation Kits Fig P85 — Fuel / water separator Fig P17 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled TMC60 Morse Control Brackets Fig P19 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled Fuel System Components Fig P38 — IPL Expansion Tank Kits Fig P39 — Beta 14, 16, 20 & 25 Greenline Keel Cooled Calorifier Kit - From 2011 Fig P40 — IPL Installation Kits Fig P41 — Fuel/Water Separator Fig P8 — Keel Cooled Fig P11 — Keel cooled header tank -Beta 10, Beta 14 & Beta 16 Fig P12 — Keel cooled header tank -Beta 20 & Beta 25 (2011 Spec 3 Bolt Manifold Shown)Fig P48 — Gearbox -PRM 60 Gear control brackets

Gearbox

Fig P46 — Gearbox

Lubricating

Fig P52 — Sump drain pump -hose assembly From December 2002 Fig P14 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled Oil System Components Fig P7 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled - From 2011 Starboard View

Sea Water Pump

Fig P20 — Heat exchange sea water pump -Johnson Fig P21 — Heat exchange sea water pump -Jabsco -engines to July 2006 only Fig P22 — Heat exchange sea water pump -Beta type from June 2013

Other

Fig P70 — Service kit to suit 2AB'V'W pushbutton control panel Fig P82 — Calorifier connections / hot water take off -Keel cooled & Heat Exchange pre Dec2010 Fig P86 — Short Voyage Spares Kits Fig P42 — IPL Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled 6K Polyvee 1st Alternator Drive Upgrade Kit - From 2011 Fig P43 — Beta 14, 16, 20 & 25 (non turbo) Greenline Keel Cooled 75 Amp Alternator Upgrade Kit - From 2011 Fig P82 — NMEA2000 Digital interface -for installations with deluxe control panel

📚 Manuals & Sources

Specs

Beta 25 H/E Engine Data Sheet Mfr Beta Marine

Operator's Manual— none yet

Service / Workshop Manual— none yet

Parts Catalog / List

Beta 10-25 Illustrated Parts List Mfr Beta Marine

More📖 Boat Inboard Engine Manuals Boat Manuals

External links — we host none of these documents.

Beta 25 — Affiliate Parts Search

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Category: Marine
Engine family: BETA
Year range (approx): from 2011
Cylinders: 3
Rated output: 25 hp (18.4 kW)
Bore × stroke: 72 × 73.6 mm
Displacement: 898 cc
Max rpm: 3600
Aspiration: Naturally aspirated

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