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Engine block Volvo B21

Leaking freeze plugs and weeping block seams are classic checkpoints on the 2.1-liter OHC B21 engine in the Volvo 240 and 260. Rust around the freeze plugs can point to aged coolant or poor corrosion protection, and should be checked before the block is reassembled.

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This category gathers sealing and supplementary parts for the block itself. The group includes freeze plugs and plugs, O-rings, nipples and plugs, plus studs and soot cleaning kits used during a rebuild or when replacing the cylinder head. Since the B21 was built in several versions over the course of the 240/260 years, it is worth checking plug and thread dimensions against your specific engine before ordering.

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Crankshaft Volvo B21Gaskets Volvo B21Cylinder head Volvo B21Engine mountings Volvo B21Oil cooler Volvo B21ET/FTLubricating system Volvo B21Valve mechanism Volvo B21

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