21985884 Heat Shield | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D3 Exhaust-Manifold Heat Shield - Part Number: 21985884

Main exhaust-manifold thermal shield used across D3 marine diesel installations. It follows the five-cylinder exhaust-manifold profile and protects adjacent hoses, wiring, covers and intake components.

⚙️ Key Features

• Application-shaped thermal barrier

• Protects hoses, wiring and surrounding components

• Uses the original mounting points and clearances

• Designed for sustained exhaust-side temperatures

• Correct position is essential to heat management

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21985884 (current listed OEM reference)

OEM / Related Numbers:

• 21985884

• 21192127 - related exhaust pipe on D/E/F/G configurations

• 22420926 - later related exhaust-pipe reference

• 22030177 - associated heat shield

• 21985886 - companion heat shield

• 21104921 - nearby hose

• 1275549 - related gasket

• 981152 - mounting nut

• 981749 - plug

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D3 exhaust manifold and heat-protection system

Typically suits:

• Engine models:

• D3-110I-D

• D3-110I-E

• D3-110I-F

• D3-110I-G

• D3-110I-H

• D3-140I-D

• D3-140I-E

• D3-140I-F

• D3-140I-G

• D3-140I-H

• D3-150I-D

• D3-150I-E

• D3-150I-F

• D3-150I-G

• D3-150I-H

• D3-170I-D

• D3-170I-E

• D3-170I-F

• D3-170I-G

• D3-170I-H

• D3-200I-D

• D3-200I-E

• D3-200I-F

• D3-200I-G

• D3-200I-H

• D3-220I-D

• D3-220I-E

• D3-220I-F

• D3-220I-G

• D3-220I-H

• D3-140A-D

• D3-140A-E

• D3-140A-F

• D3-140A-G

• D3-140A-H

• D3-170A-D

• D3-170A-E

• D3-170A-F

• D3-170A-G

• D3-170A-H

• D3-200A-D

• D3-200A-E

• D3-200A-F

• D3-200A-G

• D3-200A-H

• D3-220A-D

• D3-220A-E

• D3-220A-F

• D3-220A-G

• D3-220A-H

• HP / Rating: 110 hp to 220 hp

• Engine / System Type: Five-cylinder common-rail turbocharged marine diesel

• Year Range: D3 generation D through H

• Serial / Specification Control: Confirm engine model suffix, generation letter and exhaust-pipe version. The D3 heat-shield set changes with inboard and Aquamatic exhaust layouts.

🔌 Function

Reduces radiant and conducted heat transfer from the exhaust or turbocharger area to adjacent wiring, hoses, covers and service-access zones.

Common signs of failure or wear:

• Cracking around mounting points

• Loose or missing fasteners

• Heat discoloration of nearby components

• Rattling or contact with the exhaust assembly

• Burnt wiring, hose hardening or damaged insulation

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging