1677894 Shim | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta shim is a calibrated spacing shim used in the engine component adjustment/shimming position. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it provides a calibrated spacing correction at its documented engine assembly location. Selection must be confirmed by OEM part number 1677894, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

• Engine Family: D, TAD

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1677894
• Thickness: 0.6 mm
• System group: Instruments
• Fits D12 marine engines and TAD industrial engines
• TH=0.6mm (Volvo assembly listing)

🔌 Function

The shim sets a precise gap or standoff between an instrument or sender and its mounting face. Correct thickness ensures the device sits at its intended position so readings and clearances remain accurate.

⚠️ Common Signs of Failure

• Incorrect or drifting instrument readings traced to sender position
• Visible wear, distortion or corrosion of the shim
• Loose or rattling sender mounting
• Clearance measured outside specification at assembly
• Repeat sender failure caused by incorrect mounting depth

🛠️ Service Notes

• Shims are supplied in graded thicknesses and exist to bring a setting into specification, so measure with a micrometer and select the thickness the setting procedure for your engine calls for rather than matching one by eye
• Note which shim came from which position on removal and keep them identified — once an assembly has bedded in, shims are not interchangeable between positions
• Check both faces are clean, flat and free of burrs, corrosion and old sealant before fitting; dirt trapped under a shim shifts the setting as surely as the wrong thickness does
• Discard any shim that is dished, cracked, pitted or fretted rather than reusing it, and make sure no old shim has been left behind in the recess
• Recheck the clearance or setting after the assembly is tightened down, because clamping load can change the measurement you took loose

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D12C-A MP, D12D-A MG, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
• Volvo Penta D9A2J, D9A2A, D9A2C
• Volvo Penta TAD940GE
• Volvo Penta TAD941GE