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Engine block Volvo B234

Corroded freeze plugs and coolant seeping along the side of the block are classic checkpoints when a B234 with double overhead camshafts is rebuilt. This category gathers the parts around the engine block itself on the Volvo 740, 760 and 780 – not a single component, but the families you need for sealing and assembly.

The group includes freeze plugs, block bolts, guide pins and stud bolts, sleeves, drain valves plus silicone paste and service kits. During a block rebuild, the freeze plugs and the drain valve are common weak points, since rust and deposits collect there over time. Because the B234 is a specific engine variant, you should always verify that the parts match your engine code before installation.

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