MarineDieselXRef
Home › Engines › Westerbeke W33A

Westerbeke W33A Marine

Westerbeke Westerbeke W33A · W family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Westerbeke W33A is a marinized Mitsubishi K4F block (same as W33, lower rating); internals cross to Mitsubishi K4F part numbers. source

33 hp24.3 kW
1491 ccdisplacement
78×78 mmbore × stroke
4-cylcylinders
1984–1988year range (approx)
NAaspiration
📋 Full specifications 7 🚜 Industrial / tractor base 158 🔧 Aftermarket 12
Cheaper-part coverage · 4/8
🚜 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 · 25 assemblies

The exploded parts diagrams for the Westerbeke W33A, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Body

Fig 263 — YESTERBEKE 13-18-21-21-33 - FRESH YATER PUMPFig 264 — "'ESTERBEKE 13-18-21-27-33 - FRESH "'ATER PUMPFig 274 — 'WESTER BEKE 13 - GOVERNO~Fig 314 — WESTERBEKE SHIFT CONNECTION ON HBW

Cooling

Fig 256 — W[STERBEKE 18-21A-27l-33A - COOLING SYSTEMFig 265 — WESTERBEKE 4.4 BCD - 6.0 BCD - SEA WATER PUMP 3

Crankshaft & Pistons

Fig 205 — WESTERBEKE 13-18-21-27-33 - CRANKSHAFT AND PISTONS

Electrical

Fig 321 — WESTERBEKE 8.0 BTD - CONTROL PANELFig 334 — WESTERBEKE 13-18-21-27-33 - ALTERNATOR

Engine Block & Head

Fig 204 — WESTERBEKE 18-21-27-33 - CYLINDER BLOCK

Fuel

Fig 302 — WESTERBEKE 13-18-21-21-33 - FUEL INJECTOR

Generator

Fig 250 — WES TERBEKE BC-4.4KW - COOLING SYSTEMFig 262 — WESTERBEKE BT-8KW - COOLING SYSTEMFig 280 — WESTERBEKE 4.4-7.7-B-11-12 .. 5KW - FUEL S:lLENOIDFig 300 — - - WESTERBEKE BC-6K W BT-8KW FUE L SYSTEMFig 320 — WESTERBEKE 4.4-7.7-11-12.5KW - SYSTEM ELECT~ICALFig 335 — WESTERBEKE BC-4.4KW - BC-6KW - GENERATOR - BACK END - MOUNTFig 342 — WESTERBEKE BC-4.4KW - BC-6KW - AC OUTPUT GENER~TORFig 343 — WESTERBEKE 8.0 BTD - GENERATOR - BACK END - MOUNTING SYSTEMFig 350 — WESTERBEKE 4.4-7.7-11-12.5KW - GENERATOR MOUNTING SYSTt.MFig 352 — WESTER BEKE 4.4-7.7-11-12.5KW - GENERATOR 2 OR '+ WIPE 60 HERTZFig 360 — WESTERBEKE 4.4-7.7-11-12.5KW - GENERATIJR :3 WIRE 60 HERTZ

Inlet & Exhaust

Fig 234 — WESTERBEKE EXTRUDED EXHAUST MANIFOLD

Valve Train

Fig 206 — UESTERBEKE 13-18-21-27-33 - CAMSHAFT AND ROCKER SHAFTFig 207 — WESTERBEKE 13-18-21-27-33 - CAMSHAFT AND ROCKER SHAFT
📚 Manuals & Sources
Specs— none yet
Operator's Manual
Service / Workshop Manual— none yet
Parts Catalog / List— none yet
More📖 Boat Inboard Engine Manuals Boat Manuals

External links — we host none of these documents.

Westerbeke W33A — Affiliate Parts Search

AmazoneBayAliExpress

As an Amazon Associate I earn from qualifying purchases. Other links (eBay, AliExpress) are also affiliate links — they help pay for the site, at no extra cost to you. More

Category
Marine
Engine family
W
Year range (approx)
1984–1988
Cylinders
4
Rated output
33 hp (24.3 kW)
Bore × stroke
78 × 78 mm
Displacement
1491 cc
Max rpm
3000
Aspiration
Naturally aspirated

Related W engines

Westerbeke W108B SixWesterbeke W108C SixWesterbeke W13Westerbeke W13AWesterbeke W18Westerbeke W21Westerbeke W21AWesterbeke W27Westerbeke W27AWesterbeke W33Westerbeke W40AWesterbeke W46Westerbeke W50Westerbeke W52Westerbeke W55A FourWesterbeke W58Westerbeke W60Westerbeke W63B FourWesterbeke W63C FourWesterbeke W71B FourWesterbeke W71C FourWesterbeke W82B FourWesterbeke W90A Four