
FEULING OIL PUMP CORP. M8 Oil Pump PSI Tester
In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
We accept many payment methods

In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
The M8 Oil Pump PSI Tester is an essential tool for engine builders who work with Feuling™ oil pumps. This tester includes:
With adjustable spring tension, you can achieve the desired pop-off psi, allowing you to know exactly when the relief valve opens. This ensures optimal performance and helps to maintain good hot idle oil psi while reducing oiling system cavitation and related pressure issues. Proudly made in the USA, this tester is specifically designed to fit only Feuling™ oil pumps and is compatible with '17-'24 M8 models. Please note that it will not work with factory Harley-Davidson oil pumps.
We ship to:
We do not ship to the Canary Islands, Ceuta, or Melilla.
Shipping costs are calculated automatically at checkout based on destination and weight.
Free shipping may be offered for qualifying orders, as specified on our website.
Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.
If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.
In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.
To exercise this right, contact us via email or through our website, providing your order number and contact details.
If you want to return an item, please contact us first to give you detailed instructions.