468448 Valve Seat | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta valve seat from the Engine group, standard size, weighing 0.066 kg and listed for 71 applications across TD, TWD, TMD, TID, D and MD series engines. It supersedes part number 423012, which was catalogued earlier only as a spare part.

🚤 Compatibility

• Engine Family: TD, TWD, TMD, TID, D, MD, TAMD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Standard size
• 0.066 kg
• 71 applications across six engine series
• Supersedes 423012

🔌 Function

Forms the hardened seating face in the cylinder head against which the valve seals.

⚠️ Common Signs of Failure

• Cylinder down on compression with the valve gear correct
• Seat burnt, cracked or recessed
• Valve clearance closing up in service
• Blow-by heard at the port
• Seat loose or turning in the head

🛠️ Service Notes

• The oversize alternative is 468449 at 0.20 mm oversize, and only 4.5 grams separate the two, so order by size rather than weight
• Measure the seat bore in the head before deciding between standard and oversize

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 468448 → Supersedes 423012

OEM / Related Numbers

• 423012 earlier number superseded by this part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 TID121KG, TID121KGP, TID121KP, TID121KPB, TID121L, TID121LG, TID121LGP, TID121LP, TID121LPB, TID121FG, TID121K, TID121K-87
• Volvo Penta TD120C, TD120A, TD120G, TD120GG PP, TD120HP, TD120HPP, TD120GG, TD120AHC, TD120ARC, TD120BHC, TD120BRC
• Volvo Penta TD121G-87, TD121GGP-87, TD121G, TD121GG, TD121GGP, TD121GP, TD121GPB, TD121CHC, TD121CRC
• Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
• Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
• Volvo Penta TWD1210G, TWD1210P, TWD1210V
• Volvo Penta TWD1211V, TWD1211P, TWD1211G
• Volvo Penta TAD1230G, TAD1230V
• Volvo Penta TAD1241VE, TAD1241-42VE
• Volvo Penta TAMD120A, TAMD120B
• Volvo Penta TID120FG, TID120HPP
• Volvo Penta TMD120A, TMD120B
• Volvo Penta TWD1230ME, TWD1230VE
• Volvo Penta D120A
• Volvo Penta MD120A
• Volvo Penta TAD121CHC
• Volvo Penta TAD1231GE
• Volvo Penta TAD1232GE
• Volvo Penta TAD1242VE
• Volvo Penta TAMD121D
• Volvo Penta TD1210G
• Volvo Penta TMD121C
• Volvo Penta TMD122A
• Volvo Penta TWD1231VE
• Volvo Penta TWD1240VE