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Complete kit bundle containing all necessary components for your project. Professional-grade components designed for reliable performance and long-lasting durability.

If you need to replace your idler hub, go with a trusted name and get a genuine Lippert" replacement part. For ultimate peace of mind on the road, replace your idler hub with this Lippert" Idler Hub, designed for 2,200 lb. trailer idler axles, with a 5 on 4.5" bolt pattern, and made from durable, solid iron. This bulk item comes with the hub only, not the full assembly. A one-year warranty comes standard. Confirm the bolt pattern, axle rating, hub flange size, and other dimensions before purchasing. If you have questions, consult your original equipment manufacturer.
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| Part # | From Vehicle | To Trailer | Notes | Material |
|---|---|---|---|---|
| Single Output | ||||
| 57184 | 4-way flat | 7-way RV blade | See mounting brackets on pages 127 and 128 | Plastic |
| 57183 | 4-way flat | 6-way round | See mounting brackets on pages 127 and 128 | Die-cast |
| 57185 | 4-way flat | 7-way RV blade | Includes mounting bracket | Steel |
| 57186 | 4-way flat | 7-way RV blade | Includes wiring and components to splice in a brake controller connection | Plastic |
| 57506 | 4-way flat | 7-way RV blade | Ideal for towing a boat trailer with surge brakes | Plastic |
| 57626 | 4-way flat | 6-way round | Integrated test lamps display proper connections | Plastic |
| 57676 | 4-way flat | 7-way RV blade | Integrated test lamps display proper connections | Plastic |
| 56476 | 4-way flat | USCAR socket | Pair with #57015 for 4-way and 7-way RV blade output. See page 112 | Plastic |
| Dual Output | ||||
| 57604 | 4-way flat | 4-way flat | -- | Plastic |
| 57624 | 4-way flat | 6-way round | Integrated test lamps display proper connections | Plastic |
| 57627 | 4-way flat | 6-way round | -- | Plastic |
| 57674 | 4-way flat | 7-way RV blade | Integrated test lamps display proper connections | Plastic |
| 57102 | 4-way flat | 7-way RV blade | Audible back-up alarm when vehicle in reverse (97 decibels) | Plastic |
| Part # | Includes | Size | Qty |
|---|---|---|---|
| 57186 | Adapter (4-way to 7-way) | 4-way flat to 7-way RV blade | 1 |
| Cross-linked wire | 10-gauge | 25 feet | |
| Snap lock | 12-10 gauge | 1 | |
| Flasher | -- | 1 | |
| Circuit breaker | 30-amp | 1 | |
| Circuit breaker | 40-amp | 1 | |
| 3/8" ring terminals | 12-10 gauge | 2 | |
| #10 ring terminals | 12-10 gauge | 5 | |
| Butt connectors | 12-10 gauge | 4 | |
| Hex head screws | #10 - 3/4" | 8 | |
| Cable ties | 8-1/2" | 6 |
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We typically ship items within 24 hours of the order date excluding weekends.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page. Typical delivery times are 1-5 business days, freight items may take longer. We ship from several warehouses throughout the US to provide fast delivery.