7K #42 Round EZ-Lube Trailer Spindle Kit – 2.50" x 6" Flanged w/ Brake Hardware
Weld-on #42 round EZ-Lube spindle kit for 7,000 lb trailer axle repair or custom axle fabrication. Includes the flanged 2.50" spindle plus brake backing plate mounting hardware.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / SKU | SP-25042FZ-225-DD-KIT |
| Selling Brand | R & P Carriages |
| Product Type | Trailer axle spindle kit |
| Spindle Style | #42 round spindle |
| Axle Rating | 7,000 lb axle class |
| Primary Measurement | 2.50" round weld section x 6" listing callout |
| Length Before Flange | Approx. 3.5" |
| Overall Length | Approx. 11" to 11.75" overall, depending on reference measurement point |
| Material / Finish | Steel spindle with integrated grease zerk and installed brake flange |
| Lubrication | EZ-Lube grease passage with zerk fitting |
| Quantity Included | One spindle kit |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / Trailer / System | Trailer axle repair, heavy-duty trailer axle fabrication, and brake-ready axle builds |
| Primary Fit | #42 round EZ-Lube spindle applications in the 7,000 lb axle class where dimensions and bearing/seal stack match |
| Common Trailer Use | Equipment trailers, car haulers, dump trailers, enclosed cargo trailers, deckover trailers, landscape trailers, utility trailers, and industrial/custom trailers |
| Axle Tube Fit | Commonly used with 3" OD round axle tubes with matching wall thickness where compatible |
| Fitment Method | Verify axle tube dimensions, bearing numbers, seal dimensions, brake-mounting pattern, and hub compatibility before installation |
| Important Note | This listing is for one spindle kit only. Verify all measurements before welding. |
Top Features
| Feature | Buyer Benefit |
|---|---|
| 7K #42 Round Spindle | Built for 7,000 lb axle-class repair or custom axle fabrication where matching dimensions and components are confirmed |
| EZ-Lube Design | Grease can be fed through the spindle from the zerk fitting when used with compatible hubs and seals |
| Installed Brake Flange | Brake-ready configuration for compatible brake backing plate applications |
| Brake Hardware Included | Includes five 3/8"-24 hex-head bolts and five 38LW lock washers for brake backing plate mounting |
Overview
This SP-25042FZ-225-DD-KIT is a weld-on #42 round EZ-Lube spindle kit for 7,000 lb trailer axle repair or custom axle fabrication. It includes the flanged 2.50" spindle plus five 3/8"-24 hex-head bolts and five 38LW lock washers for compatible brake backing plate installation.
R&P Knowledge Hub
Compatibility: Built around a #42 round EZ-Lube spindle configuration with a 2.50" round weld section, brake flange installed, and grease zerk for through-spindle lubrication. Intended for matching hub, brake, and seal combinations only.
Vehicle / System Fit: Commonly used in 7,000 lb trailer axle repair, spindle replacement, and build-your-own axle work on equipment trailers, car haulers, dump trailers, enclosed cargo trailers, deckover trailers, landscape trailers, utility trailers, and industrial/custom trailers.
Installation Notes: This is a weld-on spindle kit. Proper alignment is critical during installation to protect bearing life, brake alignment, and tire tracking. Verify axle tube dimensions, brake-flange pattern, bearing numbers, and seal requirements before welding.
Performance Insight: The EZ-Lube design allows grease to be fed through the spindle from the zerk fitting at the end, making routine bearing maintenance easier than a non-EZ-Lube spindle when used with compatible hubs and seals.
Features
7,000 lb Axle-Class Spindle
#42 round EZ-Lube spindle for repair or custom axle fabrication on compatible 7K trailer axle applications.
2.50" Round Weld Section
Designed around a 2.50" round weld section with brake flange already installed for compatible brake-ready builds.
Brake Hardware Included
Includes five 3/8"-24 hex-head bolts and five 38LW lock washers for compatible brake backing plate mounting.
Repair or Fabrication Use
Useful for replacing a damaged spindle without replacing the full axle beam, or for building compatible custom trailer axles.
Included Components
| Quantity | Item |
|---|---|
| 1 | SP-25042FZ-225-DD #42 round EZ-Lube flanged spindle |
| 5 | 38LW 3/8" lock washers for brake backing plate hardware |
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5
5 |
5C38241 3/8" x 1"-24 fine-thread hex-head bolts for 12" brake backing plate mounting 38N 3/8"-24 nut |
