21191767 Crankshaft | Genuine Volvo Penta Part

🔧 Product Description

Genuine crankshaft for the Volvo Penta D1-30A and D1-30B marine diesel engines. The later D1-30F uses crankshaft 21271485 and should not be assumed to accept 21191767.

🚤 Compatibility

Typically suits:

• Volvo Penta D1-30
• Volvo Penta D1-30B
• Volvo Penta D1-30F

• Engine Family: D
• HP Range: 30 HP

⚙️ Key Features

• Confirmed D1-30A and D1-30B application
• Precision-ground main and connecting-rod journals
• Factory counterweight and oil-passage geometry
• D1-30F uses a different crankshaft reference
• Requires matched bearings and dimensional inspection

🔌 Function

The crankshaft converts piston force into rotary torque and drives the engine timing and accessory systems.

⚠️ Common Signs of Failure

• Deep bearing knock
• Scored or worn journals
• Excessive end float
• Cracks found during inspection
• Metal contamination in the oil
• Abnormal engine vibration

🛠️ Service Notes

• Fitting a crankshaft is a full bottom-end job — the block, bearing housings and oil ways all want checking, and the journals measuring for size, taper and ovality, before anything is assembled
• Wash out every oil way in the new shaft and blow it through; swarf or preservative left in a gallery will destroy the new bearings
• Fit new main and big-end shells and thrust washers, and check running clearance and crankshaft end float against the figures in the workshop manual for your engine rather than assuming they are right
• Oil the shells and journals on assembly, tighten the bearing caps in the sequence and to the tightening figures and angles specified for your engine, and turn the shaft by hand after each cap to confirm nothing binds
• Renew the front and rear crankshaft seals, inspect the flywheel, damper, pulley and their fasteners while the access is good, then prime the lubricating system and confirm oil pressure before the engine is run up under load

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21191767 → Supersedes 21191713

OEM / Related Numbers

• 21271485 earlier number superseded by this part
• 3840881 earlier number superseded by this part
• 21191713 earlier number superseded by this part

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging