21344787 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta exhaust-manifold flange screw used to clamp the manifold and heat-shield assembly on D8 engines. The exhaust joint commonly uses a high fastener quantity, and correct heat-resistant strength, torque and replacement of damaged hardware are essential to prevent soot leakage and manifold movement.

🚤 Compatibility

• Engine Family: TAD, D, TWD, TADH

Full model list at the end of this description.

⚙️ Key Features

• Exhaust-manifold flange screw for the manifold and heat-shield assembly on D8 engines
• 0.061 kg
• Supersedes 21036398
• Listed for 43 applications across the TAD, D, TWD and TADH ranges
• Quantity varies by assembly, most commonly 12

🔌 Function

Clamps the exhaust manifold and heat-shield assembly to the head, holding the joint gas-tight through repeated heating and cooling.

⚠️ Common Signs of Failure

• Ticking or puffing from the manifold joint, loudest when cold
• Soot marks or a black feather at the manifold face
• Smell of exhaust in the engine space
• Screw found seized, stretched or snapped on removal
• Manifold face found sooted and the gasket found blown at one port on strip-down

🛠️ Service Notes

• Exhaust fixings seize and stretch with heat - allow for renewing all of them and expect to release some with heat
• Check the manifold face for distortion and renew the gasket; leaving a warped face will blow the joint again whatever the fixings

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21344787 → Supersedes 21036398

OEM / Related Numbers

• 21036398 earlier number superseded by this part
• 21032878 - earlier related OEM reference
• 21742293 - exhaust-manifold gasket
• 23251020 - heat shield

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP
• Volvo Penta TAD840GE, TAD840-43VE, TAD840GE-B
• Volvo Penta TAD570-72VE, TAD570-71VE-B
• Volvo Penta TAD880-82GE, TAD880-84VE
• Volvo Penta TADH880-82GE, TADH880-84VE
• Volvo Penta TAD1140-42VE
• Volvo Penta TAD1150-52VE
• Volvo Penta TAD1170-72VE
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD1351-53VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1384-85VE-IWP
• Volvo Penta TAD1640-42VE-C
• Volvo Penta TAD1643VE-B
• Volvo Penta TAD1650VE-B/51VE
• Volvo Penta TAD1670-72VE
• Volvo Penta TAD540-42VE
• Volvo Penta TAD550-51VE
• Volvo Penta TAD552VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD841-43GE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD851-53GE
• Volvo Penta TAD853VE
• Volvo Penta TAD870-73VE
• Volvo Penta TWD1644-45GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683VE