Spark Plug Adaptor for Gravely 5-hp & 6.6-hp L-series tractors.
- Adapts old-style 7/8-18" thread to modern 14mm thread.
- Allows you to use a modern, less expensive plug (available from us) and also use a modern compression checker on your 5 & 6.6-hp engine.
#SPA-1 - Spark Plug Adaptor
SKU: SPA-1
$11.00Price