Application
05-15 Toyota Tacoma
Core Function
The main task is converting mechanical pedal force into hydraulic pressure, but a few details in the design are worth breaking down:
1. The metal pushrod connects to the pedal arm through a fork-style end, transferring pressure directly into the internal piston
2. The piston pushes fluid out through the side outlet ports toward the slave cylinder
3. A return spring resets the piston once the pedal is released, preparing the system for the next cycle
4. The dual mounting holes on the bracket keep the cylinder fixed in place against the firewall or pedal box, reducing any shift under repeated use
Because the pushrod is metal rather than plastic, it holds up better under the constant push-and-release cycle a clutch pedal goes through daily, which matters for vehicles used in higher-mileage or commercial applications.
Purchasing Motivation
Distributors and repair shops sourcing this part tend to have a few specific reasons for choosing it over a generic alternative.
Bracket fitment accuracy — a part with the wrong bolt spacing simply won't seat correctly, and buyers who've dealt with that mismatch once are usually more careful about ordering the exact bracket layout the next time
Pushrod durability — a metal rod holds its shape better than plastic over time, which matters to fleet operators and repair chains servicing vehicles with heavier daily use
Consistent repeat sourcing — wholesale buyers need a supplier who can deliver the same part reliably across multiple orders, not just a single batch that happens to fit correctly
The 31420-04020 Metal Pushrod Clutch Master Cylinder Assembly comes out of a manufacturing background with more than 10 years in the auto parts field, specifically plastic clutch cylinders, operating under BV, CE, and ISO9001 certification. Precision equipment used in production is sourced from Germany, Japan, Taiwan, and Korea, which is a detail buyers often check when they're looking for consistency across repeat orders rather than a one-off batch.
Pain Points This Part Addresses
A few recurring issues come up with clutch master cylinders on dual-bracket mounts, and this is where the design of this specific part matters.
Bolt holes that don't line up — this is one of the most common reasons a part gets sent back, and it usually comes down to bracket spacing that wasn't checked against the original OE layout before ordering
Pushrod wear or flex over time — a plastic pushrod can develop play at the connection point after extended use, leading to a spongy or inconsistent pedal feel, which the metal pushrod on this assembly is built to avoid
Inconsistent batch quality — buyers who've received parts from a supplier without a clear quality process often end up with fitment or performance issues across different shipments, which is less likely with a workshop running under ISO9001 certification
| Product name | Clutch master cylinder |
| OE number | 31420-04010, 31420-04011, 31420-04020, M1639 ,LMC589 |
| material | plastic |
| quality | Produce according to ISO9001/TS16949 standard and pass CE certification |
| MOQ | 100pieces(if the good is in stuck,any quantity is available) |
| package | Standard export package or according to customer’s request |
| shipment | Within 15-30 days after confirming the order |
| warranty | 1 year |
| Aftersales | Immediate after-sale service |

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