21421932 Heat Insulation | Genuine Volvo Penta Part

🔧 Product Description

Genuine formed heat-insulation component used around a Volvo Penta exhaust, turbocharger or hot engine surface. It replaces earlier insulation 21186667 and protects nearby hoses, wiring, covers and service areas from radiant heat.

🚤 Compatibility

Typically suits:

• Volvo Penta D13B-A MP
• Volvo Penta D13B-H MP

• Engine Family: D

⚙️ Key Features

• Current replacement for heat insulation 21186667
• Factory-shaped thermal barrier
• Designed for exhaust and turbocharger heat
• Maintains original service and component clearance
• Reduces heat exposure to cables and hoses

🔌 Function

The insulation reflects and contains radiant heat from the exhaust or turbocharger area.

⚠️ Common Signs of Failure

• Burnt or delaminated insulation
• Missing mounting points
• Heat-damaged nearby wiring or hoses
• Excessive engine-compartment temperature
• Rattling or contact with rotating components

🛠️ Service Notes

• Refit every shield and insulation panel before the engine is run — they are there to keep exhaust and manifold surface temperatures down in an enclosed engine space, and leaving one off is a genuine fire risk as well as making the space unbearable
• Check that the standoffs, spacers, clips and fasteners go back with the panel; the air gap they hold is what does the insulating, so a panel clamped flat to the manifold is not doing its job
• Renew insulation that is charred, crushed, torn, delaminated or has been soaked with oil or fuel — once contaminated it cannot be cleaned and it becomes the ignition source it was fitted to prevent
• Find and fix the leak first if the old insulation was oil-soaked or fuel-soaked; a new panel fitted over a live leak will be ruined again
• Check clearance to hoses, cables and the wiring loom once refitted, and make sure nothing can chafe against the shield edge with engine movement

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21421932 → Supersedes 21186667

OEM / Related Numbers

• 21186667 earlier number superseded by this part

📦 Condition

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