Description
The TruRyde® Defender Oil Cap for 8K Axle (Part DC-O-288) is a premium aluminum oil and dust cap designed specifically for 8,000 lb. trailer axles. This heavy-duty Defender cap offers superior protection, easy visual oil level inspection, and excellent corrosion resistance for oil bath lubrication systems.
Key Features
- Part Number: DC-O-288
- Brand: TruRyde®
- Axle Capacity: 8,000 lbs.
- Material: Die cast aluminum, silver powder coated
- Lens: Clear Lexan lens (oil version)
- Plug: Magnetized drain and fill plug
- Reference: Ref LCI85373928
- Quality: TruRyde® engineered for heavy-duty use
Why Choose the TruRyde® Defender Oil Cap?
- 360-Degree Seal — All sealing elements are on the inside, not the outside. No gaps. No exposed hardware. Nothing for day-to-day abuse to compromise.
- Fewer Failure Points — Other caps have as many as 13 individual components. The TruRyde® Defender does the job with fewer parts, which means fewer ways for things to go wrong.
- Heavy-Duty Die-Cast Aluminum Housing — Die-cast aluminum is significantly more robust than the traditional Lexan cap and can stand up to impacts that would crack or shatter a plastic housing.
- Particle-Capturing Magnet — The TruRyde® Defender magnet captures metal particles so they cannot wear down bearings.
The TruRyde® Defender Thread-On Oil Cap is available in both Oil and Grease versions. Choose from bulk packaging or retail-ready two-cap packs complete with labeling and barcode for easy merchandising.
Questions about this TruRyde Defender oil cap or compatibility with your axle? Call our trailer experts at 1-800-866-3336.
Browse more Oil Caps.








