Stanadyne /Roosa Master - Hand Primer Assembly.
Parker is now making these for Stanadyne # 23457
Replaces / Includes 12402, 12421, 15216, 12397
Please Note: Your fuel injection pump is a very technical devise. Not only does it control your engine it also protects it as well. Repairing your pump yourself is a great way to save money. However, extra care must be used as serious pump and or engine damage can occur. A person repairing their own injection pump is assuming their own
