858833 Insert | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta cooling system insert weighing 9.752 kg and listed for 7 applications across TMD, AQAD and TAMD series engines. It supersedes 838590, which was catalogued in Swedish as a rorinsats, a pipe insert. At 9.752 kg it is the heaviest of the three inserts listed here, well clear of 858134 at 2.404 kg and 858639 at 2.948 kg.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD40A
• Volvo Penta TMD40B
• Volvo Penta TMD40C
• Volvo Penta AQAD40B
• Volvo Penta AQAD40A
• Volvo Penta TAMD40A
• Volvo Penta TAMD40B

• Engine Family: TMD, AQAD, TAMD

⚙️ Key Features

• Supersedes 838590, catalogued earlier as a pipe insert
• 9.752 kg
• 7 applications across TMD, AQAD and TAMD engines
• The heaviest of the three inserts listed here

🔌 Function

Forms the removable tube element inside its cooling system housing, and is renewed on its own rather than replacing the whole assembly.

⚠️ Common Signs of Failure

• Coolant temperature climbing while the circuit stays full
• Coolant and oil or raw water mixing
• Scale, silt or debris packed into the tubes
• Corrosion pinholes or split tubes found on strip-down
• Sealing ends distorted so the insert will not seat

🛠️ Service Notes

• At 9.752 kg it needs supporting on the way in and out to avoid damaging the tube ends
• Renew the end seals and gaskets whenever the insert is disturbed
• Flush the housing and check the anode before fitting

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 858833 → Supersedes 838590 → Supersedes 845198

OEM / Related Numbers

• 838590 earlier number superseded by this part
• 845198 earlier number superseded by this part

📦 Condition

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