Melling Oil Pump Screen 55S1 — 0.75" Length, 0.50" I.D., Galvanized Steel (Made in USA)

The Melling Oil Pump Screen 55S1 is a galvanized-steel replacement screen that filters debris before it reaches your oil pump, measuring 0.75" long with a 0.50" inner diameter and made in the U.S.A.

When maintaining an engine's lubrication system, the oil pump screen is a simple but essential part that prevents sludge, metal particles, and other contaminants from entering the pump. The Melling 55S1 is built from galvanized steel for corrosion resistance and durability, and its compact dimensions fit applications calling for a 0.75-inch length and a 0.50-inch inner diameter. Designed and manufactured in the United States, this screen serves as a direct, economical way to protect the oil pump and help maintain oil flow integrity.

What does the Melling 55S1 screen do for an oil pump?

The screen traps larger contaminants in the sump or pickup area to prevent them from being drawn into the pump and oil passages. This reduces the risk of pump wear and downstream blockage without restricting normal oil flow when clean.

• Captures debris and metal particles before pump entry
• Maintains oil flow by filtering out large particulates
• Galvanized finish helps resist rust in humid environments

Which specifications define the 55S1 and why they matter?

Size and material are the key specs: the 0.75" length and 0.50" inner diameter determine fitment with compatible pickups and housings, while galvanized steel offers mechanical strength and corrosion resistance for longer service life.

• 0.75 inch overall length — fits compact pump pickups
• 0.50 inch I.D. — ensures correct mating to pump inlet
• Galvanized steel construction — durable and corrosion resistant
• Manufactured in the U.S.A. — domestic quality controls

How do I install and inspect this oil pump screen?

Installation typically involves removing the oil pan or pickup assembly to access the old screen, replacing it with the 55S1, and reassembling with proper torque and new gaskets as needed. Inspect the screen visually for clogging, corrosion, or damage during oil service intervals.

• Access via oil pan or pickup removal following vehicle service manual
• Ensure a snug, flush fit on the pump inlet to prevent bypassing
• Inspect at oil change intervals or when performing engine work

Who is this for? The Melling 55S1 is suited for technicians, restorers, and DIY mechanics working on engines that require a compact, 0.75"-long oil pump screen with a 0.50" inner diameter. It's an appropriate choice when you need a durable, galvanized replacement made in the United States for routine maintenance or engine rebuilds. Choose this part if your application calls for these dimensions and you want a straightforward, economical component to protect the oil pump and lubrication passages.