859871 Valve Guide | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta valve guide from the Engine group, weighing 0.023 kg and listed for 9 applications across the TMD, MS, TAMD and MD engine series. It shares that nine-application fitment list with the valve seats 859874 and 859875 and the guide pin 859878, all of which are cylinder head parts from the same set of engines.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD22A
• Volvo Penta TMD22B
• Volvo Penta TMD22P-C
• Volvo Penta MS2B-A
• Volvo Penta TAMD22P-B
• Volvo Penta MD22
• Volvo Penta MD22A
• Volvo Penta MD22L
• Volvo Penta MD22P

• Engine Family: TMD, MS, TAMD, MD

⚙️ Key Features

• 0.023 kg
• 9 applications across TMD, MS, TAMD and MD engines
• Engine group, cylinder head component
• Shares its fitment list with valve seats 859874 and 859875

🔌 Function

Holds the valve stem on axis as it opens and closes, keeping the head square to its seat and controlling oil drawn down the stem.

⚠️ Common Signs of Failure

• Blue smoke on start-up or after a period on the overrun
• Oil consumption climbing with no external leak to account for it
• Rocking or side play felt at the valve head when levered in the guide
• Valve seating unevenly, showing an off-centre contact band on the seat
• Ticking or a light knock from the valve gear that changes as the engine warms

🛠️ Service Notes

• Guides and seats are a matched job — check the seat condition before deciding to renew guides alone
• Fit new stem seals whenever guides are disturbed
• The head must be measured cold and the valves checked for stem wear, since a worn stem in a new guide reproduces the fault

📦 Condition

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