21553229 Heat Insulation | Genuine Volvo Penta Part

🔧 Product Description

A formed thermal-insulation section used in the inlet and exhaust system of Volvo Penta D13B-B MP marine engines.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C1-A MP
• Volvo Penta D13C3-A MP
• Volvo Penta D13B-B MP
• Volvo Penta D13B-D MP
• Volvo Penta D13B-J MP
• Volvo Penta D13B-M MP

• Engine Family: D

⚙️ Key Features

• D13B-B MP exhaust insulation
• High-temperature thermal barrier
• Reduces radiant heat in the engine compartment
• Protects nearby hoses, wiring and covers

🔌 Function

The insulation contains exhaust heat and reduces radiant-temperature exposure around the engine installation.

⚠️ Common Signs of Failure

• Insulation torn or missing
• Outer layer burnt or oil-soaked
• Excessive heat affecting nearby wiring or hoses
• Loose insulation contacting the exhaust
• Damaged mounting points

🛠️ 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

• 21553229 → Supersedes 21380945

OEM / Related Numbers

• 21380945 earlier number superseded by this part
• 21553226 - Related splash plates
• 21553228 - Related splash plates
• 21553230 - Companion insulation section

📦 Condition

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