A single big mouth spring loaded pushrod tube finished in gold and manufactured by Scat.

These internally spring loaded pushrod tubes have 3 internal sealing washer o rings to prevent leaks and are 20% larger in diameter at the head end to accommodate ratio rockers and high lift cams. A great replacement for a leaking stock pushrod tube, there is no need to remove the head to install.

Aircooled engines - Large diameter to head, long small diameter end to the case
Waterboxer engines - Long small diameter end to the head, large diameter end to the case