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Cylinder Head

BMW makes their cylinder heads from aluminum. While this is beneficial for many reason, they do not react well to overheating. Especially prevalent on older BMW engines, and over-temp situation has been known to cause the head to warp. Turner Motorsport carries Genuine BMW replacement heads and parts to make your next rebuild a success.

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E12 Torx BMW Head Bolt Socket

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:640255

Part#: CTA9259

Ships on Nov 13, 2026

$ 14.27 USD

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$ 14.27 USD

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Used for cylinder head bolts on BMW M42 and M50 engines. 1/2" square drive with 6" (15cm) shaft

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