Northern Radiator Cap 15 PSI w/ Adjustable Sacrificial Magnesium Anode

Extend the life of your cooling system with the Northern radiator cap featuring an adjustable sacrificial magnesium anode (Z17703). This cap is engineered to protect your radiator and components from internal corrosion with a magnesium anode. This attracts harmful electrolytes before they can cause damage. With an adjustable depth ranging from 5" to 8-1/4", it ensures a proper fit for a variety of coolant reservoir systems. The 15 PSI cap features both upper and lower seals for a secure fit and reliable pressure control. Precision measurements include a lower seal diameter of 1-1/2", an upper I.D. of 2-1/4", and an internal height of 3/4" with the spring extended. Designed as a universal solution, this radiator cap offers long-term reliability and peace of mind for protecting your investment.

Features and Benefits:
- Universal fitment for a variety of cooling systems
- Adjustable depth from 5" to 8-1/4"
- Sacrificial magnesium anode helps prevent internal corrosion
- Rated at 16 PSI for optimal performance
- Internal height with spring extended: 3/4"
- Lower seal diameter: 1-1/2"
- Upper I.D.: 2-1/4"
- Provides long-term protection for radiator and components

Additional Notes:
- Matching esisting PSI is crititcal in selecting a radiator cap
- Measurements are for reference only and may vary slighting with application