CM246
Mounting and Connection Details
| Item |
Detail |
| Mounting Size |
Φ29/60/2-Φ9 |
| Port/Connecting Size |
M10 x 1.0 |
| Packaging |
Neutral box or custom OEM/ODM branding |
The mounting pattern describes the bolt circle and hole size used to fix the cylinder to the pedal bracket or firewall, while the connecting size refers to the thread on the port where the hydraulic line attaches. Matching both figures, alongside the bore diameter, ensures the replacement cylinder bolts straight in and connects to the existing fluid line without any modification.
What Is a Clutch Master Cylinder?
A clutch master cylinder is the hydraulic component that links the clutch pedal to the rest of the clutch operating system in a manual transmission vehicle. Mounted behind the firewall and supplied by the clutch fluid reservoir, it converts the mechanical force applied to the clutch pedal into hydraulic pressure, which travels through the fluid line to the clutch slave cylinder. The slave cylinder then pushes the release fork and disengages the clutch plate so the driver can shift gears smoothly.
In commercial vans and light trucks, the clutch master cylinder works under heavier and more frequent use than in a typical passenger car, since these vehicles are often driven on stop-start delivery routes or used as minibuses with constant gear changes. This accelerates wear on the internal seals, leading to a soft or sinking clutch pedal, hydraulic fluid leaking near the pedal box or firewall, a dropping fluid level in the reservoir, and gears that become harder to engage. Replacing a worn master cylinder with an OEM-spec part such as the XUI3511A restores normal pedal feel and reliable gear engagement, and is one of the most common parts ordered for commercial van clutch repairs.
One Platform, Many Brand Names
A common question from buyers is why one clutch master cylinder can be listed against so many different vehicle brands. The answer lies in how light commercial vans are developed and sold globally. A single platform is often designed by one manufacturer and then sold under several brand names in different regions, with only minor styling or badge changes between versions. The vehicles covered by the XUI3511A are a good example of this: the same underlying van platform was sold as the Mazda E-Series in Japan and several export markets, as the Ford Econovan across Asia, Oceania and Australia, and as several Kia commercial van models in Korea and other regions where Kia held local production rights. An earlier badge-engineered version of the same family was also sold under the Asia Motors Hi-Topic name before Kia took over production.
Because the underlying hydraulic clutch system was never redesigned across these badge changes, the clutch master cylinder retains the same dimensions and the same set of OE part numbers across all of these brands. This means a single SKU like the XUI3511A can replace the original part regardless of which badge is on the front of the vehicle, which is particularly useful for wholesale buyers who want to consolidate their inventory rather than list the same part under multiple separate codes.
Who Buys This Part and OEM/ODM Options
This clutch master cylinder is in steady demand from auto parts wholesalers and distributors supplying workshops in Australia, New Zealand, Southeast Asia, the Middle East and Africa, where these commercial vans remain in active daily service as delivery vehicles, minibuses and school transport. Fleet maintenance companies and van repair shops also place repeat orders, since clutch wear occurs faster on these vehicles than on passenger cars.
For distributors building a branded clutch and brake parts catalog, Xusen can produce the XUI3511A under your own packaging, labeling and logo design. The process is straightforward: confirm the specification, approve a production sample, move into mass production, then apply custom box and label printing before shipping in bulk. MOQ and lead time are confirmed per order.
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