22398004 Exhaust Pipe | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta stainless-steel exhaust pipe for TAD1170VE, TAD1171VE and TAD1172VE industrial engines. It supersedes 1626484 and forms part of the inlet-and-exhaust assembly alongside exhaust pipe 21501664, gasket 21095726 and the NOx-sensor boss arrangement. The stainless construction is selected for high exhaust temperature and corrosion resistance.

🚤 Compatibility

• Engine Family: TAD, TWD

Full model list at the end of this description.

⚙️ Key Features

• Current stainless-steel exhaust pipe replacing 1626484
• Factory geometry for the TAD1170-72VE engine family
• High-temperature and corrosion-resistant construction
• Correct flange alignment for the adjoining exhaust components
• Supports the original emissions-sensor and aftertreatment layout
• Designed to tolerate exhaust pulsation and engine vibration
• Quantity varies by assembly, most commonly one

🔌 Function

The exhaust pipe carries hot combustion gas from the engine/turbocharger toward the downstream silencer or aftertreatment system. It maintains a gas-tight path, supports sensor placement and accommodates the flow required for correct turbocharger and emissions-system operation.

⚠️ Common Signs of Failure

• Soot marks or exhaust smell around the pipe
• Cracks near welds, flanges or support points
• Loud exhaust noise
• Exhaust-temperature or NOx-sensor faults
• Loss of power from a leak ahead of the turbocharger or aftertreatment
• Warped flange causing repeated gasket failure
• Corrosion, heat discolouration or vibration fatigue

🛠️ Service Notes

• Fit new gaskets and seals at every joint you disturb; exhaust gaskets take a set once they have been heat-cycled and will not seal a second time
• Clean the flange faces back to bare, flat metal and check them for distortion and pitting — a warped face will blow out a new gasket however hard it is pulled up
• Renew corroded studs and nuts, use a high-temperature anti-seize on the threads, and tighten in the sequence and to the figures in the workshop manual for your engine; recheck once the engine has been run up to temperature and allowed to cool, because the joint relaxes over the first few heat cycles
• Support the pipe on its own mountings so nothing hangs on the flange and no hose pull is taken through the joint, and keep the specified clearance to hoses, wiring and glassfibre
• On water-cooled sections, check the cooling passages are clear and the water connections sound before running — a restricted jacket will cook the pipe and the hose behind it

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22398004 → Supersedes 1626484

OEM / Related Numbers

• 1626484 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Related exhaust pipe: 21501664
• Related gasket: 21095726
• Related NOx-sensor boss: 21653609

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAD1140-42VE
• Volvo Penta TAD1150-52VE
• Volvo Penta TAD1170-72VE
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD1351-53VE
• Volvo Penta TAD1360-62VE
• Volvo Penta TAD1363-65VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1384-85VE-IWP
• Volvo Penta TAD1643VE-B
• Volvo Penta TAD1650VE-B/51VE
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD1670-72VE
• Volvo Penta TWD1644-45GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683VE
• Volvo Penta TWD1744GE