Double-bore flange clutch slave cylinder for TOYOTA XUI4524A

CM246

Parameter Items	Specifications
Product Model	XUI4524A
Original Equipment Manufacturer (OE) No.	31470-38020
Diameter (DIA)	22.22 mm (7/8 inch)
Mounting Size	Φ29.5 / 34 / 2-Φ8.9 (Double-hole mounting)
Connecting Size	M10 × 1.0 (Double-end)
Applicable Transmission Type	Manual Transmission
Applicable Vehicle Years	1999 – 2004
Applicable Platform	F5 (Qualis / Tamaraw FX shared platform)
Primary Target Markets	India, Philippines, and surrounding Southeast Asian markets

The clutch slave cylinder is a key component of the clutch hydraulic system in a manual transmission vehicle, working in conjunction with the clutch master cylinder. Simply put: the master cylinder converts the pedal force into hydraulic pressure, which the slave cylinder receives and pushes the release fork, ultimately disengaging the clutch disc and completing the gear shift.

Applicable Models: This product is compatible with the following two Toyota models sold on the same platform (_F5_):
• 1999–2004 TOYOTA QUALIS (_F5_) – An MPV for the Indian market built on the Hiace platform, 2.0L displacement
• 1999–2004 TOYOTA TAMARAW FX (_F5_) – A sales name exclusive to the Philippine market, sharing the same platform and specifications as the Qualis.

Market Background: The _F5_ platform is a multi-purpose vehicle (MPV) platform specifically developed by Toyota for the South and Southeast Asian markets. It is sold under different names in different countries: Qualis in India and Tamaraw FX in the Philippines. The Tamaraw FX, known as the "national car" in the Philippines, has long been used as a family car, taxi, and minibus, resulting in a very high ownership rate. Since this model has been out of production for over 20 years and is primarily used for daily operation and passenger transport, the clutch system wears out quickly, leading to a persistent need for driven cylinder replacement in both the Indian and Philippine markets.

Core Functions
• Receiving Hydraulic Pressure: The hydraulic pressure from the master cylinder is converted into thrust here, driving the release fork to complete the final step of clutch disengagement.
• Leak-Proof Sealing Design: Built-in high-precision sealing components prevent brake fluid leakage, maintaining long-term stable system pressure and adapting to high-intensity use scenarios with frequent passenger transport.
• Original Cylinder Bore Matching: The 22.22mm (7/8 inch) cylinder bore matches the original vehicle calibration, and the thrust output meets the clutch system design requirements of the _F5_ platform.
• Dual-Hole Flange Mounting: The mounting structure uses a 2-Φ8.9 dual-hole design (Φ29.5/34), precisely corresponding to the original vehicle's gearbox housing mounting position for a secure fit.
• Dual M10×1.0 interface design: Both ends of the hydraulic lines are M10×1.0 threads, facilitating connection to the master cylinder side lines and exhaust valves for convenient installation.
• Cross-regional vehicle compatibility: The same product can cover models sold under two different regional names: Qualis in India and Tamaraw FX in the Philippines, allowing dealers across different markets to maintain consistent inventory.

What problems can this product solve for your customers?
Private Label/OBM Customers
• Supports OEM/ODM labeling; packaging and labeling are customized according to brand requirements. The Tamaraw FX is a household name in the Philippines, a highly recognized "national car" in the local repair market. Leveraging this recognition, our own-brand products can more easily penetrate the market.
• Covering both the Indian and Philippine markets, a single product can support business expansion in both regions, reducing redundant development costs.
• Providing complete technical documentation (parameter sheets, OE part numbers, ISO certification documents) helps you quickly complete local market qualification verification and brand listing.

Wholesale Distributor
• Qualis and Tamaraw FX have long been used as taxis, family cars, and small passenger vehicles, experiencing high operational intensity. Clutch systems are replaced more frequently than in ordinary family cars, resulting in stable demand for driven cylinders.
• This model has been discontinued for over 20 years, leading to a tightening supply of Toyota genuine parts. Reliable replacement parts have stronger negotiating power in the Indian and Philippine repair channels.
• Full inspection before shipment ensures sealing performance and dimensional accuracy meet original factory requirements, effectively reducing after-sales return and exchange rates.
• It is recommended to stock the same clutch master cylinder as the platform to facilitate one-stop clutch system repair solutions for customers and increase the average order value.

Q1: Are Qualis and Tamaraw FX the same model?
A: They are sales names for the same platform (_F5_) in different markets: Qualis is the Indian market name, and Tamaraw FX is the Philippine market name. The body structure, chassis, and clutch system specifications are exactly the same. XUI4524A can cover models under both market names.

Q2: What is the difference between the driven cylinder and the master cylinder? Which one should I buy?
A: The master cylinder is installed near the pedal in the driver's cab and is responsible for converting the pedal force into hydraulic pressure; the driven cylinder is installed on the gearbox housing and is responsible for receiving pressure to push the release fork. If shifting jerks and difficulty in shifting gears are the main symptoms, the driven cylinder is more likely to be the problem; if the pedal itself feels soft, it is recommended to check the master cylinder first. Specific recommendations should be made based on the actual fault symptoms.

Q3: What is the difference between XUI4524A and Toyota genuine part 31470-38020?
A: XUI4524A is an OEM equivalent manufactured to original equipment manufacturer (OE) specifications. The cylinder bore, double-hole flange mounting dimensions, and hydraulic interface threads are all identical to the original part, conforming to ISO 9001 quality standards. This model has been discontinued for many years, and the supply of genuine parts is limited. This product can serve as a stable and reliable alternative.

Q4: What precautions should be taken during installation?
A: After replacing the driven cylinder, the clutch hydraulic system must be bled to ensure there is no air in the lines. Otherwise, problems such as a soft pedal or incomplete clutch disengagement may occur. It is recommended that a professional technician check the pedal travel and disengagement effect after installation.