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Peterson Fluid Systems water neck spacer 1¼ with a single -10 AN port is machined from billet aluminum and includes an O‑ringed flange that accommodates a thermostat. It offers a straightforward single -10 AN outlet for cylinder head water routing while maintaining proper thermostat positioning and sealing for custom plumbing setups.
Peterson Fluid Systems Water Neck Spacer 1 1/4 1 x -10AN
