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Trailer Parts Pro 6,000lb 7,000lb 8,000lb 9,000 lb (8-bolt) Dexter Axles, Oil Cap Replacement Kit, RG04-230


Regular price $27.49 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 oil cap replacement kit is designed to provide a secure, leak-proof seal for 6K, 7K, 8K, and select 9K 8-bolt trailer axles. It serves as a direct replacement component engineered to preserve proper hub lubrication and protect internal wheel bearings from outside contaminants. The clean construction ensures optimal compatibility and seamless fitment for single wheel servicing needs.

What's Included by Kit Option: 

1 x Oil Cap

1 x O-Ring

1 x Plug

Specifications:

Brand: Trailer Parts Pro

Part Number: RG04-230

Reference Number: 150940

Alternate Item Number: 7700029-10

Outer Diameter: 2.875" OD

Axle Compatibility: 6K, 7K, 8K, 9K (before 10/1989) Dexter Axles

Hub Compatibility: 8-Bolt Hubs

Kit Services: 1 Wheel

Package Type: Retail Packaged

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