Mickey Thompson builds this cover style center cap for Sidebiter II wheels, molding it in non corrosive black plastic with a satin finish and an embossed M/T logo. The cover design conceals the lug hardware entirely, which is what lets a single cap serve both the 6x5.5 (6x139.7) and 6x135 dual drill patterns that Sidebiter II wheels are drilled for. It bolts on rather than snapping in, so it stays seated through trail and highway use. Sold individually, so order the quantity your wheel set requires.
Specifications
| Type | Bolt-on cover style wheel center cap |
| Fits Wheel | Mickey Thompson Sidebiter II |
| Bolt Pattern | 6x5.5 (6x139.7) and 6x135 |
| Material | Non-corrosive plastic |
| Finish | Satin black with embossed M/T logo |
| Installation | Bolt-on |
| Quantity | 1 (sold individually) |
| Part Number | 250399 (Mickey Thompson product code 224400073) |
| Warranty | Limited lifetime warranty against structural defects, plus a one year finish warranty |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
