420628 Piston Cooling Jet | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta piston cooling jet from the Lubricating and Oil System group, weighing 0.023 kg and listed for 28 applications across the TAMD, TWD, TID, TD and TAD series engines. It supersedes 466836 and 849919, the latter catalogued earlier as an oil jet.

🚤 Compatibility

• Engine Family: TAMD, TWD, TID, TD, TAD

Full model list at the end of this description.

⚙️ Key Features

• 0.023 kg
• Supersedes 466836 and 849919
• 28 applications across five engine series
• Lubricating and Oil System group

🔌 Function

Sprays oil up onto the underside of the piston to carry heat away from the crown.

⚠️ Common Signs of Failure

• Piston crown scuffed, discoloured or holed on strip-down
• Oil consumption climbing with blue smoke under load
• Jet orifice blocked with carbon or sludge
• Jet tube bent so the spray misses the piston
• Oil pressure slightly low at idle when hot

🛠️ Service Notes

• Check the jet aims squarely at the piston before the block is closed up — a bent jet does more harm than a blocked one
• Blow the orifice through and confirm it is clear rather than assuming a used jet is serviceable

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 420628 → Supersedes 466836

OEM / Related Numbers

• 849919 earlier number superseded by this part
• 466836 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TD71A, TD71ACE, TD71AG, TD71AP, TD71AW
• Volvo Penta TWD710G, TWD710P, TWD710PB, TWD710V
• Volvo Penta TAD730G, TAD730P, TAD730V
• Volvo Penta TAMD72A, TAMD72P-A, TAMD72WJ-A
• Volvo Penta TID71A, TID71AG, TID71AP
• Volvo Penta TAMD63L-A, TAMD63P-A
• Volvo Penta TAMD71B, TAMD71A
• Volvo Penta TAMD73P-A, TAMD73WJ-A
• Volvo Penta TAMD61A
• Volvo Penta TAMD62A
• Volvo Penta TAMD74A
• Volvo Penta TD710G