Manual Transmission Clutch Master Cylinder for Toyota Qualis XUI3544L 2.4 D

CM246

Specific Vehicle Applications: The following are verified vehicle models for which this part is precisely compatible:

Item	Details
Brand	TOYOTA
Model	QUALIS (F5 series)
Year Range	1999 – 2004
Engine	2.4L Diesel (2.4 D)
OE Reference Number	31410-38050
Aftermarket Part Number	CM246

Product Specifications: The following parameters are measured data, used for procurement verification and installation matching:

Specifications / Description	Parameter Value
Part No.	XUI3544L-1
Internal Model	CM246
OE Reference No.	31410-38050 (Toyota)
Piston Diameter	15.87 mm
Mounting Size	Φ26.7 / 72 / 45° / 2-M8×1.25 (bolt-fixed)
Connecting Size	M10 × 1.0
Adaptor System	Hydraulic Clutch System
Product Certifications	ISO 9001 / TS16949

This is an aftermarket replacement part, perfectly matching the original OE number 31410-38050, precisely matching the original vehicle's installation location and hydraulic parameters. Without this part, manual transmission vehicles cannot shift gears properly. Its failure typically manifests as a soft clutch pedal, lack of responsiveness, or difficulty shifting.

The Toyota Qualis (F5) is an MPV model launched by Toyota for the Indian market, equipped with a 2.4L diesel engine. The manual transmission version uses a hydraulic clutch system. This model has a large market share in the Indian used car market, resulting in stable demand for parts.

Target sales markets include:
India – Qualis's main market, with a large inventory of used cars and high demand for repair parts.
Middle East – Widespread use of Toyota diesel MPVs.
Southeast Asia – High market penetration of Toyota vehicles.
Africa – Extremely high usage of Toyota vehicles, resulting in strong demand for repair parts.

Core Function: The core function of the clutch master cylinder is to convert the mechanical force of the driver pressing the pedal into hydraulic pressure, driving the entire hydraulic clutch system to complete the action of power disconnection and engagement.

Detailed Function Breakdown:
Force Conversion: Converts pedal force into hydraulic pressure, transmitting it to the slave cylinder.
Pressure Maintenance: Maintains system sealing, ensuring no hydraulic leakage and preventing the clutch pedal from becoming soft.
Precise Control: A 15.87mm piston diameter ensures precise hydraulic ratio and consistent pedal feel.
Quick Return: A spring mechanism ensures the pedal returns quickly after release, without affecting the driving experience.
Durability: Seals are made of high-temperature and hydraulic oil-resistant materials, suitable for long-term, high-frequency use.

Installation Instructions (for technical reference):
Secure to the firewall with two M8×1.25 bolts at a 45° angle.
The hydraulic pipe interface is an M10×1.0 standard thread and requires corresponding fittings.
It is recommended to check the seal of the reservoir and hydraulic lines simultaneously during replacement.
What problems can this product solve for overseas customers? For older diesel MPVs like the Toyota Qualis, overseas buyers generally face the following challenges:
Discontinued or long lead times for original parts: Toyota OE parts 31410-38050 are discontinued in some markets or require long wait times for older models, leaving repair shops without replacement parts.
High prices for replacement parts from European and American brands: European brands (such as LuK and Sachs) of equivalent specifications are more expensive, squeezing distributors' profit margins.
Prevalence of counterfeit and substandard parts: A large number of inferior replacement parts exist in the local market; seals are prone to aging and leaks, leading to customer complaints and returns.
Incompatible specifications and installation failures: Size mismatches (piston diameter, mounting hole spacing, connector specifications) prevent parts from being installed, wasting labor and shipping costs.
Lack of reliable long-term suppliers: Many small and medium-sized buyers cannot find factory partners that can provide stable and consistent quality.

How our products address these challenges:
Strict adherence to OE specifications: DIA 15.87mm, M10×1.0 interface, M8 Bolt holes – perfect fit upon installation, eliminating the need for returns and exchanges
ISO9001 / TS16949 certified: Comprehensive quality system, 100% airtightness testing before shipment
Stable delivery time, inventory support: Factory maintains regular inventory, supporting rapid preparation and staggered shipments
OEM branding service: Supports buyers selling under their own brand, helping to build local brand barriers

Q: Which car models can this part be matched with?
A: Precisely compatible with 1999-2004 Toyota Qualis (F5) 2.4L diesel, OE number 31410-38050. To confirm compatibility with other models, please provide the VIN or original part number for verification.

Q: Is your product quality guaranteed?
A: Yes. We are ISO 9001 and TS16949 quality system certified, and each batch of products undergoes airtightness testing before shipment to ensure no leakage.

Q: Do you support OEM/ODM?
A: Yes. We offer complete OEM/ODM services, including branding, outer packaging printing, and instruction manuals. Please contact sales to confirm the minimum order quantity.