1677963 Guide Pin | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta guide pin is a precision cylinder-head locating pin used in the cylinder-head valve-guide locating pin, earlier production. 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 precisely locates the designated valve-guide/cylinder-head component during assembly. Selection must be confirmed by OEM part number 1677963, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta OEM guide pin
• OEM part number 1677963
• Check the bore and pin interference, press square to the specified depth and avoid damaging the head casting
• Production/serial control: Associated with earlier-production cylinder-head arrangements; confirm the head casting and serialised parts list
• Kit/service relationship: Documented quantity is 12 in the inlet/exhaust valve-guide arrangement and the pins may be included with an exchange cylinder head

🔌 Function

The guide pin locates a component in its exact position on the mating face before fasteners are fitted, so the joint aligns correctly and stays aligned. It carries shear load that would otherwise fall on the fasteners alone.

⚠️ Common Signs of Failure

• Component misalignment or difficulty locating the part on assembly
• Wear, scoring or ovality on the pin shank
• Bent or sheared pin found on dismantling
• Fretting or elongation of the pin bore in the mating component
• Gasket failure at the joint caused by poor alignment

🛠️ Service Notes

• Confirm the earlier-production cylinder-head casting before ordering — this pin does not suit every later D12D head revision in the fitment list
• Twelve pins are documented in the inlet/exhaust valve-guide arrangement and may already be included with an exchange cylinder head — check before buying a set separately

🔄 Supersession & Cross Reference

OEM / Related Numbers

• Valve cotter 1677875

📦 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 TAD1241GE, TAD1241VE, TAD1241-42VE
• Volvo Penta TAD1242GE, TAD1242VE
• Volvo Penta TAD1240GE
• Volvo Penta TWD1240VE