859903 Shim | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shim from the Engine group, 3.10 mm thick and listed for 9 applications across the TMD, MS, TAMD and MD engine series. In the run listed here it follows the inch-marked 859902 and sits above 859904 at 3.07 mm. Order on the measured thickness: the weights published across this family of shims do not rise with thickness and cannot be used to sort them.

🚤 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

• 3.10 mm thick
• Between 859902 (0.123 inch) and 859904 (3.07 mm)
• 9 applications across TMD, MS, TAMD and MD engines
• Identify by measured thickness, never by weight
• TH=3.10mm (Volvo assembly listing)

🔌 Function

Packs the assembly by a known amount so the clearance falls within specification without machining or adjustment.

⚠️ Common Signs of Failure

• Clearance out of specification when checked
• Tapping or knocking from the assembly the shim controls
• Bright, dished or scored shim face on removal
• Micrometer reading below the marked thickness
• Stamped size no longer legible

🛠️ Service Notes

• Measure at several points across the face — a shim that has worn unevenly reads correctly in one place and not in another

📦 Condition

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