2 BILLET ALUMINUM 4" Oil Bath Cap 21-36 Trailer Axle Bearing Hub 10K-HD 12K-15K (21-36 Billet-Kitx2) Electric Tilt Car Hauler No trailer-floor drilling required

No trailer-floor drilling required

Steel roller measures 1-1/2" wide

- Standard sizes make retrofit or replacement quick and easy

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2 BILLET ALUMINUM 4" Oil Bath Cap 21-36 Trailer Axle Bearing Hub 10K-HD 12K-15K (21-36 Billet-Kitx2) Electric Tilt Car Hauler No trailer-floor drilling requiredPair of 4. 0" Billet Aluminum Oil Bath Caps 12 Thread Replaces Dexter 21 36 Part Number: 21 36 Billet KitX2 Heavy duty billet aluminum oil bath caps designed to replace standard 4. 0" threaded plastic oil caps commonly used on select Dexter oil bath hub assemblies. Precision machined from solid billet aluminum for durability, corrosion resistance, and long service life. Ideal upgrade solution for cracked, leaking, or damaged clear plastic caps.