Overview
The Baer Brakes 54109-020 is a front Claw performance rotor set for 4WD Ford F-150 trucks from 2004 to 2008, including Harley-Davidson Edition models, and for the 2006-2008 Lincoln Mark LT 4WD. Sold as a set, these one-piece cast iron vented rotors are direct replacements for the front discs on those 6-lug trucks.
The slots and cross-drilled holes let gases and dust escape from between the pad and rotor, which supports a more consistent pedal and reduces brake fade. The vane structure is designed to improve cooling, the drilled holes are chamfered to limit stress cracking, and the zinc-plated finish suits open center wheels. The rotor is a directional, mill balanced premium part.
Key features
- Cross-drilled and slotted friction surface for gas and dust escape
- Vane structure designed to improve cooling
- Premium, mill balanced direct replacement rotor
- Chamfered cross drilled holes to minimize stress cracking
- Zinc-plated finish visible behind open center wheels
- Directional brake surface
Front brake maintenance
On most trucks the front brakes do the bulk of the stopping, so front rotors often wear faster than the rears. Watch for pulsation in the pedal, a grinding noise, or a scored face. Any of these means the rotor should be measured and possibly replaced before pads are changed again.
Front rotors work together with the caliper, pads and hub, so one worn part can affect the rest. When replacing rotors, inspect the caliper slide pins, the brake hose, and the wheel bearing. Make sure the hub face is clean so the rotor sits flat and does not cause runout.
- Replace pads at the same time when the rotor is worn
- Clean the hub face and remove rust scale before fitting
- Check that caliper bracket bolts are tightened
- Test brakes at low speed before highway driving
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 54109-020 |
| UPC | 844165003892 |
| Sold as | Set |
| Axle | Front |
| Drive | 4WD |
| Construction | One piece, full cast |
| Material | Cast iron |
| Rotor type | Vented |
| Surface type | Slotted X drilled |
| Brake surface | Directional |
| Disc finish | Zinc plated |
| Mounting bolt hole circle diameter | 135 |
| Stud/lug hole quantity | 6 |
| Outside diameter | 329.95 |
| Overall height | 48 |
| Discard thickness | 28.5 |
| Grade type | Premium |
| ABS tone ring included | No |
| Emission code | 6 |
| Country of origin | CN |
Vehicle fitment
The manufacturer fitment list for this part names the 2004-2008 Ford F-150 Harley-Davidson Edition in 4WD and the 2006-2008 Lincoln Mark LT, both for the front axle with 6 lugs.
Fits 6-lug trucks on the front axle in 4WD only. Confirm fit for your vehicle’s year, model and trim before ordering.
Installation notes
Front rotors usually come off after the caliper and its bracket are removed. Hang the caliper by a wire so the brake hose is not strained, and clean the hub face of rust before setting the new rotor on it. Lift and support the truck on stands only.
What’s included
A pair of front one-piece rotors, sold as a set.
Not included: brake pads, calipers and hardware.
