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We know leaking caps are frustrating, and if you are installing new caps for the first time, we appreciate your belief that this is a crappy design.  Unfortunately, we have to agree.  Not because they don't work, but because they rely so heavily on the skill of the mechanic.  Putting them on is more like an art then a science, but once on properly, they are highly reliable and will last 100,000 miles or a decade or longer.  That said, know that once they have been through enough thermal cycles, they tend to become somewhat petrified on the injector.  Disturbing...

Return Policy: You may return most new, unopened items purchased directly from ISSPRO or ISSPRO.com within 30 days of delivery for a full refund. *Return of customized products, such as gauges or fuel senders are not allowed* If you purchased your item through one of our distributors, please contact the distributor you purchased from to initiate return. All returns are subject to a 15% restocking fee and may be assessed a repackaging fee as well if determined needed/required by ISSPRO. You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in...

🛠️DELPHI ELECTRIC LIFT PUMP  WARRANTY STATEMENT ⏳ Warranty Coverage Electric fuel pumps include a 90-day warranty from the date of purchase. This warranty applies only to repair or replacement of the pump itself. Excluded from coverage: Labor for removal or installation Lost fuel Loss of vehicle use due to downtime Lost time from work Any other inconvenience ⚠️ Note: If you purchase a pump from another vendor, Moose Diesel is not responsible for its warranty coverage. 📧 Contact Technical Support For technical support: 📩 Email: support@moosediesel.com (Technicians check this inbox during evenings and weekends) 🔧 Submitting a Warranty Claim To...

Consulting Services Complex challenges demand innovative solutions—and sometimes, thinking beyond the conventional. While fuel injection is our specialty, it’s just the beginning of what we bring to the table. At Moose Diesel, our team is powered by a diverse range of life experiences and technical expertise. Beyond the automotive and diesel industries, our skills span factory automation, IT, specialized machinery, education, material sciences, electronics, life coaching, and more. This rich blend of backgrounds enables us to approach problems from multiple angles and uncover solutions others might miss. We're not the right fit for every project—but we just might be the...

Diagnosing Pump Performance Issues: What You Need to Know More often than not, when a customer contacts us about a performance issue with a newly installed pump, the root cause turns out to be a fuel supply issue—not a fuel delivery issue. If you've been running a stock injection pump that performed reliably until failure—and you then install a new pump—it's not uncommon to experience disappointing initial results. While it's easy to make assumptions, it's critical to assess a few key factors. 1. Consider How the Old Pump Failed Was it a sudden failure accompanied by blue smoke? That usually...