21951418 Shaft Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta shaft, bearing and seal kit for selected D1-30, D2-40, MD2030 and MD2040 seawater pumps.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-40
• Volvo Penta D2-40B
• Volvo Penta D2-40F
• Volvo Penta D1-30
• Volvo Penta D1-30B
• Volvo Penta D1-30F
• Volvo Penta MD2030
• Volvo Penta MD2030B
• Volvo Penta MD2030-C
• Volvo Penta MD2030-D
• Volvo Penta MD2040
• Volvo Penta MD2040B
• Volvo Penta MD2040-C
• Volvo Penta MD2040-D

• Engine Family: D, MD
• HP Range: 30-40 HP
• Year Range: Approximately 1990s onward

⚙️ Key Features

• Shaft, bearing and seal kit for selected D1-30, D2-40, MD2030 and MD2040 seawater pumps
• 0.168 kg
• Supersedes 876700
• 14 applications across D and MD series engines

📋 Kit Contents

• 1 x pump shaft - supplied under Volvo Penta kit 21951418
• Bearing / bush components - supplied within kit 21951418
• Shaft seals and retaining clips - supplied within complete kit 21951418
• Individual loose numbers are not published as one fixed breakdown

🔌 Function

Replaces the rotating shaft, bearings and shaft seal of the seawater pump so the impeller runs true and the drive end stays dry.

⚠️ Common Signs of Failure

• Growl or rumble from the pump rising with engine speed
• Play at the shaft or impeller when rocked by hand
• Salt crust or seawater weep at the shaft
• Bearings found rough or corroded, shaft seal track worn into a step
• Drive pin sheared so the impeller no longer turns with the shaft

🛠️ Service Notes

• Shaft kit 21951416, at 0.163 kg, covers pump 3593654 and the related compact D1 / MD20-series pumps - the two are within 5 grams, so order by engine and pump number
• Fit a new impeller and shaft seal at the same time and check the pump bore

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21951418 → Supersedes 876700

OEM / Related Numbers

• 3593655 related seawater pump
• 3580222 earlier short-pump reference

Aftermarket / Verified Equivalents

• Poseidon Marine: D1-30 shaft-kit equivalent
• Poseidon Marine: D2-40 shaft-kit equivalent
• Poseidon Marine: MD2030 shaft-kit equivalent
• Poseidon Marine: MD2040 shaft-kit equivalent

📦 Condition

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