Brake wheel cylinders are small hydraulic parts, but they require careful matching. A wheel cylinder may look close to another model in a product photo, yet the bore size, port thread, mounting distance or piston structure can be different. For distributors and repair-channel buyers, these details should be confirmed before quotation.
In some markets, buyers may also describe the product as a brake slave cylinder. Meklov uses brake wheel cylinder as the main catalog term, while recognizing that brake slave cylinder may appear in buyer communication. The most important point is not the naming alone, but the technical data that makes matching possible.
Bore size affects hydraulic matching
Bore size is one of the first technical details to confirm. It affects how the wheel cylinder works in the drum brake system. If the buyer does not know the bore size, a buyer part number, sample reference or clear product photo can help start the matching process, but final confirmation should still include measurement or sample review.
When available, buyers should send the bore size together with the product model or buyer reference. If a repair kit relationship is involved, photos of the piston, rubber boot, seal and internal parts can also help.
Port thread and angle prevent fitting problems
The hydraulic inlet port is another critical area. Port thread, inlet angle, bleeder screw position and fitting direction should be checked carefully. A wheel cylinder with a similar body may still use a different port thread or fitting relationship.
For RFQ preparation, close-up photos of the inlet port and bleeder screw are useful. If the product includes a special fitting, gear fitting or accessory, the buyer should state whether the fitting is included in the quotation or requested as a separate component.
Mounting distance and body shape
Mounting hole distance and body shape help confirm whether the cylinder fits the brake backing plate. Buyers should measure mounting holes, body length and mounting ear shape. A front photo, side photo and mounting close-up can reduce wrong-part risk.
| RFQ item | Why it matters | Best proof |
|---|---|---|
| Bore size | Hydraulic matching | Measurement, model or sample reference |
| Port thread | Hydraulic line connection | Close-up photo and thread data |
| Mounting distance | Fit to backing plate | Measured mounting hole distance |
| Left/right side | Axle-side repair program | Marked sample or pair photo |
| Fittings | Kit content and price scope | Accessory photo and packing requirement |
Clean RFQ example
A clean RFQ may read: “Brake wheel cylinder for drum brake system, buyer reference number available, bore size confirmed, port thread photo attached, mounting distance measured, left/right pair required, neutral box packing, annual demand estimate included.”
This kind of request is much easier to quote than a single image with no dimensions. It also helps avoid wrong samples and wrong inventory planning.
For current product details, review Meklov Brake Wheel Cylinders. For naming clarification, see Brake Wheel Cylinder vs Brake Slave Cylinder.
Product sourcing: View the brake wheel cylinder sourcing page, then send the exact model, dimensions, quantity, target market and sample photos for RFQ review.
Need help matching a brake part?
Send product photos, model references, quantity, destination market and packaging requirements. Meklov can review the RFQ scope before quotation.