High-Precision Clutch Master Cylinder for Toyota Crown XUI3539L

CM246

Applicable Models (Application) This product is precisely compatible with the following Toyota Crown sedan series (manual transmission version), and can be directly matched using the original part number:

Year Range	Brand	Model Series	Code	Remarks
1991 – 1995	TOYOTA	CROWN Saloon	S13 (S130 series)	Eighth generation Crown, the main executive sedan in Japan
1995 – 1999	TOYOTA	CROWN Saloon	S14 (S140 series)	Ninth generation Crown, equipped with a larger displacement engine
1999 – 2002	TOYOTA	CROWN Saloon	S15 (S150 series)	Tenth generation Crown, completely redesigned exterior

Product Specifications

Parameter Item	Specifications
Product Model	XUI3539L
OE Number	31410-30390
Cylinder Bore (DIA)	15.87 mm
Mounting Size	Φ26.7 / 72 / 45° / 2-Φ9 (bolt hole fixing)
Hydraulic Connection Size	M10 × 1.0
Applicable Transmission Type	Manual Transmission
Applicable Vehicle Years	1991 – 2002
Applicable Platform	Toyota Crown Saloon S130 / S140 / S150
Primary Target Markets	Japan, Southeast Asia, Middle East, Africa

The clutch master cylinder is the core hydraulic component of the clutch system in a manual transmission vehicle. Its working principle is very straightforward: the driver depresses the clutch pedal → the master cylinder converts the depressor force into hydraulic pressure → hydraulic oil pushes the driven cylinder through the lines → the clutch disc disengages → the vehicle can smoothly shift gears. Once the master cylinder wears down or its internal seals fail, common problems include: a soft clutch pedal, resistance or abnormal noise during gear shifts, a continuous drop in brake fluid level, and slow pedal rebound after being fully depressed. These symptoms directly affect driving safety and require timely replacement.

Market Background: The Toyota Crown is Toyota's oldest sedan platform, primarily used in the Japanese domestic market, while also being exported in large quantities to Southeast Asia (Thailand, Singapore, Malaysia), the Middle East, and Africa. The S13/S14/S15 series spanned over a decade of production, accumulating substantial sales. The manual transmission version was particularly common in certain Asia-Pacific markets. Vehicles from this period are now 20-30 years old, resulting in a stable and continuous demand for repair and replacement parts.

Core Functions
Hydraulic Pressure Conversion: Linearly converts pedal force into hydraulic output, ensuring precise disengagement and consistent pedal feel with the original manufacturer.
Sealed Hydraulic Circuit: High-precision built-in sealing components prevent brake fluid leakage and maintain stable, undiminished line pressure over the long term.
Original Manufacturer Cylinder Bore Matching: The 15.87mm cylinder bore matches the original vehicle design, ensuring hydraulic output force and pedal travel conform to the original vehicle specifications.
45° Flange Installation Design: The flange uses a 45° bevel structure (Φ26.7/72/45°), perfectly fitting the original Crown's mounting space. Installation is straightforward, requiring no adjustments to the piping routing.
M10×1.0 Standard Interface: The hydraulic line interface uses the M10×1.0 thread specification commonly found in Toyota Japanese vehicles, requiring no adapters and facilitating installation.

What problems can this product solve for your customers? Private Label/OBM Clients
OEM/ODM support is available. Packaging, labels, and outer box printing can all be customized to your brand requirements, helping you establish your brand image in existing markets such as Southeast Asia and the Middle East.
The Toyota Crown is a highly recognizable model within the Toyota system. Using the same parts under your own brand provides a natural reputation among local repair shops and auto parts dealers.
We provide complete product technical data (parameter sheets, dimensional drawings, ISO certification documents), supporting you in quickly completing import qualification applications and product listing processes in your target markets.

Wholesale Distributor
The Crown S13/S14/S15 models span over a decade. Vehicles aged 20-30 years are still in significant use, ensuring continuous and stable demand for parts, making it suitable for long-term inventory management.
A 15.87mm bore is a common specification for Toyota passenger vehicles. If you also deal in parts for other Toyota models, you can manage them together with products of the same specification, reducing SKU complexity. • Full inspection before shipment ensures sealing performance and dimensional accuracy meet original equipment manufacturer (OEM) requirements, effectively controlling your after-sales return and exchange rate.

Cost Optimization for Customers
Consistent with OEM specifications, offering more competitive pricing. This helps increase profit per order without sacrificing installation compatibility, making it especially suitable for price-sensitive independent repair channels.
ISO 9001 quality management system certified, ensuring quality that can withstand scrutiny and serve as a quality certificate to downstream buyers or importers.
Supports mixed shipments with other Toyota Japanese vehicle parts, consolidating shipments to reduce unit ocean freight costs.

Q1: What is the difference between XUI3539L and Toyota OEM parts?
A: XUI3539L is an OEM equivalent manufactured to Toyota OEM specifications. The cylinder bore, flange size, and interface threads are completely identical to the OEM parts, meeting ISO 9001 quality standards. Suitable for the cost-effective repair and replacement market, requiring no modifications for installation.

Q2: Are the clutch master cylinders compatible with the S130, S140, and S150 generations of the Crown?
A: This product specification is compatible with the manual transmission versions of the above three generations of models (1991–2002). Since the same platform uses the same mounting structure and hydraulic interface specifications across generations, the XUI3539L covers all three generations. It is recommended to confirm the part number via VIN code or EPC system before ordering. If you have any questions, please contact us for assistance.

Q3: How common are manual Crown versions on the market?
A: The manual transmission version of the Toyota Crown is mainly sold in the Japanese domestic market, and is also exported to some Southeast Asian and Middle Eastern countries. As these vehicles enter their advanced maintenance period (over 20 years old), the clutch master cylinder is a normal wear and tear component that needs replacement, and market demand continues.

Q4: Are special tools required for installation?
A: No. The installation method of the XUI3539L is exactly the same as the original parts; a regular wrench can be used for disassembly and assembly. The flange has a 45° bevel structure that corresponds to the original vehicle mounting position. After aligning and fixing it with the bolt holes, the hydraulic lines can be connected. No additional tools are required for repair shops.