Boltigen Fuel Pressure Gauge 0-15 psi | Glycerin-Filled Inline 1/8 NPT Kit

Meet the Boltigen Fuel Pressure Gauge, a compact inline instrument designed to help you observe fuel pressure with clarity during daily driving, weekend builds, and routine maintenance. The glycerin-filled design dampens needle movement, delivering stable readings even as the engine roars or the vessel rocks. With a slim profile and a robust build, this gauge is built to sit neatly in a panel or under a hood, so you can keep an eye on pressure without sacrificing space.

Why this gauge stands out

Designed for versatility, the gauge uses a 1/8 NPT thread and a rugged stainless steel body paired with brass barb fittings. The glycerin-filled mechanism reduces wobble for readable, quick checks at a glance. The center-back mounting keeps the dial accessible when panels are in place, ensuring you can glance at the face without fumbling during maintenance or tuning.

• 0-15 psi range tailored for low-pressure fuel paths, enabling practical checks during setup or diagnosis.
• Glycerin-filled design minimizes needle bounce for steadier readings in motion or vibration.
• 1/8 NPT thread provides straightforward installation with common fuel system hardware.
• Corrosion-resistant stainless steel housing and brass fittings for durability in challenging environments.
• Includes 3/8" and 5/16" brass barb fittings for flexible hose connections across configurations.
• Attached clamps simplify secure mounting during service, builds, or routine inspections.

The kit is suitable for automotive, marine, and light industrial fuel setups, offering a dependable way to monitor pressure as you diagnose issues or fine‑tune performance. Readings should be interpreted in context with your system and other indicators; results depend on multiple variables.

What you get

• Glycerin-filled fuel pressure gauge (0-15 psi) with 1/8 NPT thread
• 3/8" brass barb fitting
• 5/16" brass barb fitting
• Installation clamps
• Mounting hardware and instructions

Versatile installation and real-world use

Whether you are upgrading a performance build, tidying a marine fuel line, or servicing generator sets, the inline form factor and included adaptors make positioning simple. The readable dial and sturdy construction help you monitor pressure as you operate or adjust your system, with confidence that the gauge can withstand vibration and exposure to fuels.

Tips for best results

• Mount in a location with easy readability and access for quick checks.
• Use the included barb fittings to adapt to your hose sizes without forcing lines.
• Tighten connections to recommended torque and secure hoses with clamps to reduce leaks.

Explore Boltigen’s gauge as part of your maintenance toolkit to support clear, readable pressure checks and informed decisions, all without promising guaranteed outcomes.