21427364 Heat Shield | Genuine Volvo Penta Part

🔧 Product Description

Genuine formed heat shield used around a Volvo Penta exhaust, turbocharger or aftertreatment component. It protects nearby hoses, wiring and covers from radiant heat while preserving the factory air gap.

🚤 Compatibility

Typically suits:

• Volvo Penta D11A-A
• Volvo Penta D11A-B
• Volvo Penta D11A-C
• Volvo Penta D11A-E
• Volvo Penta D11A-C MP
• Volvo Penta D11A-D MP

• Engine Family: D
• Serial Range: SN7011186935-

⚙️ Key Features

• Factory-shaped exhaust-area heat shield
• Reflects and contains radiant heat
• Maintains the designed air gap
• Protects hoses, cables and service areas
• Designed for engine vibration and high temperature

🔌 Function

The shield reduces radiant heat transfer from hot exhaust components to surrounding engine-room parts.

⚠️ Common Signs of Failure

• Burnt or cracked shield
• Missing insulation
• Loose shield causing rattling
• Heat-damaged nearby wiring or hoses
• Shield contacting the exhaust or a rotating component

🛠️ Service Notes

• Fit heat shields before anything else is routed near the exhaust, and check there is clear air space between the shield and every hose, cable, fuel line and belt
• Renew any insulation, gaskets, spacers or standoffs supplied with the shield; a shield clamped flat onto a hot surface loses much of its effect
• Tighten the fixings evenly and only to the figure in the workshop manual for your engine — the tabs and brackets are thin and distort easily
• Never run the engine with a shield missing or loose: bare exhaust surfaces are a fire risk in an engine space and a burn risk to anyone working alongside
• Check the shield and its fasteners whenever the exhaust is disturbed, as vibration works them loose and a rattling shield soon cracks at its mounting tabs

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21427364 → Supersedes 3886936

OEM / Related Numbers

• 3886936 earlier number superseded by this part
• 21455682 - Later or related heat-shield reference requiring serial confirmation

📦 Condition

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