20355012 Valve Guide | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta valve guide is a precision cylinder-head guide manufactured to control valve-stem alignment and transfer heat used in the cylinder-head inlet-valve guide. It is manufactured to the original Volvo Penta dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. Inlet guide; nominal outside diameter 16 mm, bore 9.53 mm and length 82 mm where specified. In service, it guides the inlet-valve stem accurately and transfers heat from the valve into the cylinder head. Selection must be confirmed by OEM part number 20355012, the exact engine or product model, serial number and installed configuration.

🚤 Compatibility

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

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta OEM valve guide
• OEM part number 20355012
• Inlet guide; nominal outside diameter 16 mm, bore 9.53 mm and length 82 mm where specified.
• Measure the cylinder-head bore and valve stem, install with the specified interference and finish the guide bore to Volvo Penta service limits.
• 12 used per assembly

🔌 Function

Guides the inlet-valve stem accurately and transfers heat from the valve into the cylinder head. Measure the cylinder-head bore and valve stem, install with the specified interference and finish the guide bore to Volvo Penta service limits.

⚠️ Common Signs of Failure

• Excessive valve-stem side play
• Blue exhaust smoke or increased oil consumption
• Poor compression, hard starting or uneven cylinder balance
• Valve-seat wear caused by valve misalignment
• Sticking valve, guide seizure or heat damage

🛠️ Service Notes

• Guides are an interference fit: bring the head to the temperature the workshop manual specifies and press the new guide in with a stepped drift, lightly oiled, rather than driving it in cold
• Fit to the depth or protrusion the manual gives for your engine, and support the head properly so the boss is not cracked
• Ream or size the guide after fitting — pressing distorts the bore, and stem-to-guide clearance must be brought back to the manual's figure
• Check the result by oiling the stem and letting the valve fall through the guide under gravity: it should descend smoothly and evenly, with no tight spot anywhere in its travel
• Recut or lap the seats after guides are changed, since the guide sets the valve's axis, and renew the valve stem seals at the same time

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20355012 → Supersedes 1556607 → Supersedes 1543862

OEM / Related Numbers

• 1556607 earlier number superseded by this part
• 1543862 earlier number superseded by this part

Other-Brand OEM Numbers

• TRW Engine Component: inlet valve guide for 1556607 / 20355012
• TRW Engine Component: 81-47107

Aftermarket / Verified Equivalents

• Jeenda: inlet valve guide 1556607 / 20355012
• DT Spare Parts: 2.10291
• Sampa: 039.132

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD162C-C, TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
• Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
• Volvo Penta TAMD165A, TAMD165C, TAMD165P
• Volvo Penta TAD1630G, TAD1630GE
• Volvo Penta TAD1631GE, TAD1631G
• Volvo Penta TAMD163A-A, TAMD163P-A
• Volvo Penta TWD1630G, TWD1630V
• Volvo Penta TD164KAE
• Volvo Penta TWD1620G