66-42LZ - #42 Spindle with Integrated Flange – For 5.2K–7K Axles | MT

66-42LZ - #42 Spindle with Integrated Flange – For 5.2K–7K Axles | MT
This #42 spindle with integrated brake flange is engineered for use with 5,200–7,000 lb trailer axles. Featuring a weld-on design and a built-in 5-bolt brake flange, it offers dependable support for brake assemblies and ensures consistent axle performance under heavy loads.
Detailed Information:
| Spindle Capacity | 3,500 lbs (per spindle) |
|---|---|
| Stub Diameter | 2-1/4" |
| Overall Length | 11" |
| Brake Flange | 5-bolt integrated |
| Lubrication Type | Grease only |
Fitting:
Compatible with 5.2K to 7K round trailer axles. Designed for grease-lubricated hubs only. Features a welded-on 5-bolt flange for quick brake assembly mounting. Requires two spindles per axle.
Features:
- Heavy-Duty Design: Built to endure high-load towing with maximum reliability.
- Integrated Brake Flange: 5-bolt pattern allows for simple and secure brake installation.
- Precision Machined: Ensures smooth hub rotation and proper bearing fitment.
- Grease-Optimized: Specifically designed for grease-filled hubs, not compatible with oil bath systems.
- Universal Application: Fits a range of trailer types including equipment, cargo, and utility trailers.
Interchangeable Part Numbers:
- TRU37FR
- 66-42LZ
Product Overview:
The #42 Spindle with Integrated Flange – For 5.2K–7K Axles | MT is a high-strength spindle ideal for demanding trailer builds. It combines a precision-machined surface with an integrated 5-bolt brake flange and durable weld-on installation. Compatible with standard grease-lubricated hubs, this spindle delivers reliable braking, smooth operation, and long-term performance in various trailer applications.
- Product type: Trailer Axles


























































