21551779 Conversion Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine conversion package that updates the IPS-D drive oil-pump, filter and strainer arrangement to the revised Volvo Penta configuration.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 260-435 HP
• Year Range: approximately 2000s-2010s

Full model list at the end of this description.

⚙️ Key Features

• Complete IPS-D lubrication update
• Includes pump, adapter, cover, filter and oil lines
• Used where the original oil-system design is replaced by the later arrangement
• Drive serial and existing housing must be confirmed
• Also supersedes Volvo part numbers 3801110, 3801203 and 3801272

📋 Kit Contents

• Adapter - 21611508
• Cover - 21611515
• O-ring - 949656
• Strainer - 3886794
• Plug - 21913841
• O-ring - 949659
• O-ring - 968559
• Washer - 940275
• Hex-socket screw - 963681
• O-ring - 976023
• Valve cone - 471085
• Filter nipple - 840274
• Oil filter - 834337
• O-ring - 955997
• Sleeve - 21412587
• O-ring - 955989
• O-ring - 925260
• O-ring - 925262
• Oil pump kit - 21521380
• Nipple - 994509
• Elbow nipple - 994507
• Oil hose - 21412615

🔌 Function

The kit updates oil pickup, pumping, filtration and return flow to the revised factory design.

⚠️ Common Signs of Failure

• Low drive-oil pressure
• Repeated oil-pump or filter faults
• Original components are obsolete
• Metal contamination in the drive
• Volvo service instruction specifies the conversion

🛠️ Service Notes

• Check the kit contents against its parts list before starting and read the instruction sheet supplied with it through to the end — a conversion is a sequence of steps, not a like-for-like swap
• Confirm the kit is the one for your engine or drive serial number before any of it is fitted; conversion kits are tied to build ranges rather than to a model name
• Expect to renew the gaskets, seals and single-use fasteners that the work disturbs, and to have the fluids and consumables for the affected system on hand before you begin
• Record the conversion against the engine or drive serial number and keep the paperwork with the boat, so later parts ordering and diagnostics reflect what is actually fitted

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21551779 → Supersedes 21462064 → Supersedes 3801304 → Supersedes 3801109 → Supersedes 3803834

OEM / Related Numbers

• 21462064 earlier number superseded by this part
• 3801305 earlier number superseded by this part
• 3801304 earlier number superseded by this part
• 3801202 earlier number superseded by this part
• 3801109 earlier number superseded by this part
• 3803834 earlier number superseded by this part
• 21521380 - included oil pump kit
• 21412509 - related early and later pump housings
• 22918960 - related early and later pump housings

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330D-E, D6-370D-E, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-310D-D, D6-310D-C, D6-310D-E, D6-435D-D, D6-435D-E, D6-435D-C
• Volvo Penta D4-260D-C, D4-260D-D, D4-260D-E, D4-300D-C, D4-300D-D, D4-300D-E
• Volvo Penta IPS-A, IPS-B, IPS-C
• Volvo Penta 8.1IPSCE-MF