If your equipment relies on grease fittings (also known as Zerk fittings), keeping them clean and functional is key to long-term performance. Zerk fitting caps offer a simple yet effective way to protect your lubrication points from dirt, moisture, and damage. Whether you're maintaining industrial machinery, agricultural vehicles, or heavy-duty construction equipment, these caps are a low-cost solution that delivers real value.

What Are Zerk Fitting Caps?

Zerk fitting caps are small protective covers designed specifically to fit over standard grease fittings. Their main purpose is to prevent contaminants like dust, debris, and water from entering the fitting, which can compromise the lubrication system. A clean grease fitting ensures smoother operation, reduced friction, and longer equipment life.

Why Use Zerk Fitting Caps for Your Equipment?

• Contamination Protection – Keep dirt and moisture out of grease fittings.


• Longer Equipment Lifespan – Proper lubrication means less wear and tear.


• Reduced Maintenance Costs – Minimize breakdowns and service time.


• Quick Installation – Snap-on design makes caps easy to install and remove.

From vehicle chassis to industrial machinery, Zerk fitting caps help maintain clean, functional grease points that keep operations running smoothly.

Zerk Fitting Caps

Common Applications for Zerk Fitting Caps

Zerk caps are used in a wide range of industries and equipment types, including:

• Automotive: Protect fittings on steering, suspension, and trailer components.
• Agriculture: Prevent grime from clogging grease points on tractors and harvesters.
• Construction: Safeguard fittings on loaders, excavators, and graders.
• Manufacturing: Maintain clean lubrication points on production machinery and conveyor systems.

Zerk Fitting Caps for OEM and Commercial Use

If you're a manufacturer or OEM, Zerk fitting caps offer a professional finishing touch for your products. Adding caps to exposed grease fittings helps protect parts during shipping and enhances customer confidence. They're ideal for companies producing suspension parts, machinery, trailers, or industrial tools. At Caps and Plugs USA, we offer bulk quantities to meet commercial production demands and help speed up your assembly process.

High-Quality Zerk Fitting Caps from Caps and Plugs USA

• ✔️ A wide selection of Zerk fitting cap sizes


• ✔️ High-quality plastic for long-term durability


• ✔️ Bulk pricing for OEMs and large-scale users


• ✔️ Fast shipping from our U.S.-based warehouses

Order Zerk Fitting Caps Online Today

Looking for a cost-effective way to protect your grease fittings? Zerk fitting caps from Caps and Plugs USA are an easy upgrade that helps prevent contamination and reduce maintenance issues. Shop now to find the right size and quantity for your equipment or production needs.