Integrated or remote reservoir, one hydraulic line to the slave — pedal feel is decided here.
A clutch master cylinder converts pedal travel into hydraulic pressure for the clutch release circuit. Disben supplies integrated- and remote-reservoir versions in aluminium or cast iron, bore 15.9–23.8 mm, with EPDM seals rated for DOT 3 and DOT 4. Plastic-bodied assemblies made for one vehicle platform are not reproduced, and we say so at quotation stage.
| Body material | Aluminium / cast iron |
|---|---|
| Bore range | 15.9 – 23.8 mm |
| Reservoir | Integrated or remote |
| Port thread | M10×1 / M12×1 (per OE) |
| Fluid | DOT 3 / DOT 4 |
| Best for | Manual transmission car & LCV |
The clutch master cylinder turns pedal travel into pressure. Its two failure modes are boring and predictable: a cup that swells in the wrong fluid, and a reservoir joint that weeps. Both of them are decided by the part number.
Cast iron or aluminium, with the reservoir integrated on the body or fed by a remote tank. Which one a vehicle uses is a property of the part, not a preference.
Bore across this line runs 15.9–23.8 mm. Cups are EPDM for DOT 3 and DOT 4 — clutch hydraulics share the brake fluid, so the same compound rules apply.
The joint between reservoir and body is where a clutch master usually weeps first. It is part of the part number, not a universal fitting that can be swapped between variants.
A clutch master that weeps is a comeback, not a warranty statistic. The checks below target the seal and the joint specifically, because that is where the failure starts.
We do not own production lines. Each reference comes from an audited factory, with at least three sources compared before a price is quoted.
Every unit held at 1.5× working pressure, recorded per batch — including the reservoir joint, which is the first place a leak shows.
Pre-production audit, during-production monitoring and an AQL pre-shipment check, with photographs before the container is loaded.
Where a customer replaces both, master and slave ship from the same batch direction so the seal compounds match. SGS, BV or TüV on request.
The clutch master cylinder sits on the pedal box and feeds the slave through a single hydraulic line. Bore range 15.9–23.8 mm across the line; integrated and remote reservoirs are both covered, and the reservoir interface is part of what the OE number fixes.
Minimum per model, mixed models allowed in one order.
Dispatch for references already held in stock.
Production for a reference that has to be made.
One inquiry list answered as one quotation, within a day.
Cross-referenced against TRW, LPR, Metelli and A.B.S. numbers. A quotation names every reference a part number covers, so your counter can check it against stock before you commit.
Clutch masters are usually sold as a pair with the slave, so the labelling has to make the pairing obvious to a counter hand. That is a packaging decision, and it is free.
Send the number off the old unit — or a list, or a photo of it. You get the equivalent part number, the references it covers, the price per volume tier and the lead time, within 24 working hours.
One sourcing desk for the whole hydraulic range, so a mixed container can carry all five.
Tandem and single-circuit units, pressure tested
Matched left and right pairs for drum axles
External and concentric types, pre-assembled
Cups, seals, pistons and dust boots by bore
Part numbers currently held in this line, with the OE references each one covers. Send a list and we quote against it — or ask about a number that is not listed here.
| Part number | OE references | SKU |
|---|---|---|
| Clutch Master Cylinder | 160251018001 | BMC-0021 |
| Clutch Master Cylinder · Mitsubishi L200 / Triton (KA_T, KB_T) | 2345A015 | BMC-0022 |
| Clutch Master Cylinder · Nissan Maxima / Maxima QX IV (A32) | 30610-31U17 | BMC-0024 |
| Clutch Master Cylinder · Nissan Pick UP (D22) | 30610-3S107 | BMC-0025 |
| Clutch Master Cylinder · Nissan Patrol GR V Wagon (Y61) | 30610-VB000 | BMC-0026 |
| Clutch Master Cylinder · Toyota Dyna 400 (BU_, XZU_) | 31401-36060-ALM | BMC-0027 |
| Clutch Master Cylinder · Toyota Corolla Liftback (_E8_) | 31410-12160 | BMC-0028 |
| Clutch Master Cylinder · Toyota Corolla (_E11_) | 31410-12380 | BMC-0029 |
| Clutch Master Cylinder · Toyota Cressida Saloon (_X7_) | 31410-35090 | BMC-0030 |