21611628 Charge Air Pipe | Genuine Volvo Penta Part

🔧 Product Description

Charge-air pipe in the Volvo Penta D11B1-A MP cooling/intake assembly. It carries compressed air through the factory charge-air cooler circuit and uses the original bore, bends, sealing surfaces and clamp positions.

🚤 Compatibility

Typically suits:

• Volvo Penta D11C1-A MP
• Volvo Penta D11C3-A MP
• Volvo Penta D11C2-A MP
• Volvo Penta D11C4-A MP
• Volvo Penta D11B3-A MP
• Volvo Penta D11B4-A MP
• Volvo Penta D11B2-A MP
• Volvo Penta D11B1-A MP

• Engine Family: D

⚙️ Key Features

• Genuine Volvo Penta D11 charge-air pipe
• Specific to D11B1-A MP
• OEM bore and low-restriction routing
• Works with charge-air cooler 21506789 and companion pipe 21611996
• Correct hoses, O-ring and clamps are required for a boost-tight joint
• Engine type: 11-litre inline six-cylinder turbocharged diesel marine propulsion engine

🔌 Function

Carries compressed, cooled intake air between the turbocharger/charge-air cooler and engine intake system.

⚠️ Common Signs of Failure

• Loss of boost and reduced power
• Oil mist around a leaking joint
• Boost-pressure or air-mass fault alarms
• Cracks, deformation or loose clamps

🛠️ Service Notes

• Clean both sealing faces before assembly and check the rubber sleeves, seals and clamps; hardened, swollen or split sleeve rubber will not hold boost on a new pipe
• Seat the pipe fully onto its spigots and set each clamp behind the bead before tightening, so pressure cannot push the joint apart
• Align and support the pipe on its brackets so it is not pulled into tension — a pipe held under strain chafes, cracks and works its clamps loose
• Check the bore for oil sludge and soot before fitting and clean it out; carried-over oil softens sleeve rubber and blackens a new pipe from the inside
• Tighten clamps and any flange fasteners to the figures in the workshop manual for your engine, then re-check them after the first run under load

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21611628 → Supersedes 21682105

OEM / Related Numbers

• 21682105 earlier number superseded by this part
• 21506789 charge-air cooler
• 996675 hose clamp
• 21832376 charge-air hose
• 21611996 companion charge-air pipe
• 945512 O-ring
• 20592783 V-clamp
• 952986 hose
• 3837438 collar
• 961672 hose clamp
• 961671 hose clamp
• 21619213 charge-air pipe
• 947457 clamp

📦 Condition

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