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Trailer Parts Pro 5,200-7,000 lb Zerk Lube Axles Dust/Grease Caps with Rubber Plugs, E-Z Lube,2.720" OD, 2-Pack RG04-120


Regular price $29.79 USD

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received.

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

Product Overview:

This premium replacement kit features heavy-duty E-Z Lube grease caps engineered to provide maximum protection for 5.2K to 7K trailer axles with 8-bolt hubs. Stamped from cold-rolled steel, each dome-style cap includes a precise Zerk lube cut-out to streamline routine hub lubrication maintenance. Complete with rubber push-pop in plugs, these drive-in caps reliably shield wheel bearings from dirt, dust, and moisture while keeping essential grease fully contained.

What's Included by Kit Option: 

2 x E-Z Lube Grease Caps

2 x Rubber Plugs

Specifications:

Brand: Trailer Parts Pro

Part Number RG04-120

Reference Number: 150930

Alternate Item Numbers: 7700018-10, PP1605-AL

Outer Diameter (OD): 2.720"

Axle Compatibility: 5.2K - 7K Zerk Lube

Hub Compatibility: 8 Bolt Hubs, Dexter 35mm Nev-R-Lube Hubs

Material: Cold Rolled Stamped Steel

Design: Dome Cap with Zerk Lube Cut-Out

Installation Type: Drive-in

Package Type: Retail Packaged

Package Quantity: 2

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