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LOCKING CAPS

This is the cap only.

The 1928-29 is threaded, and the 1930-31 has tabs.

Both lock in place with allen screws so they can't be removed without tools. See instructions below for 1930-31 with reproduction radiators. The top part of cap that flips open is drilled to accept the A-18354-CR or -WR moto meters. U.S.A.

DISCONTINUED
Temporarily
OUT OF STOCK

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