21859185 Insert Sleeve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Common-Rail Injector Insert Sleeve - Part Number: 21859185

A genuine injector insert sleeve used in Volvo Penta D8 and TAD5 common-rail cylinder heads. It locates and seals the injector within the cylinder head and works with the specified gasket, O-ring and retaining hardware.

⚙️ Key Features

• Genuine Volvo Penta factory component

• Position-specific dimensions and material

• Designed for marine or industrial engine service

• Maintains the intended assembly relationship

• Direct replacement for the same numbered original part

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21859185 (current OEM reference)

OEM / Related Numbers:

• 21857406 - injector sleeve gasket

• 993664 - injector O-ring

• 21453372 - injector retaining screw

• 21786627 / 22556900 - injector yokes

• 21843299 - socket pipe

• 21442526 - rubber ring

• 21785960 / 22236215 / 22625707 / 23185947 - injector references

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D8 marine and TAD8 industrial diesel systems

Typically suits:

• Engine / drive models:

• D8A1-A MP, D8A2-A MP

• TAD540VE, TAD541VE, TAD542VE

• TAD580VE, TAD581VE, TAD582VE, TAD583VE

• HP Range: Approximately 225HP - 650HP, depending on application

• Engine Type: 7.7L inline six-cylinder common-rail turbocharged diesel

• Year Range: Approximately 2010 - current supported applications

• Serial / Fitment Note: Confirm the complete engine, drive or equipment product number and serial number before ordering.

🔌 Function

Performs the position-specific mechanical or electrical function assigned by the Volvo Penta engine or drive assembly.

Common signs of failure:

• Visible wear, cracking or corrosion

• Loose fit or abnormal movement

• Loss of alignment or sealing

• Accelerated wear of adjoining components

• Failure to perform the assigned function

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging