GDST Auto Parts is a drum brake wheel cylinder manufacturer and supplier in China, offering iron and aluminum brake wheel cylinders for passenger cars, pickup trucks, and commercial vehicles. We provide OEM/ODM services, OE No. matching, technical support, and wholesale supply for global automotive aftermarket importers, distributors, and wholesalers.
Looking for a reliable drum brake wheel cylinder manufacturer for your automotive aftermarket business? GDST Auto Parts is a China-based manufacturer specializing in hydraulic automotive components for OE and aftermarket applications.
Since 2002, GDST has focused on hydraulic automotive parts manufacturing, supporting customers seeking replacement components, product matching assistance, and long-term B2B supply partnerships.
Our selected drum brake wheel cylinder references cover multiple vehicle makes and applications, with different bore diameters and housing materials. We also maintain documented performance test results for specific products, including a tested wheel cylinder associated with Toyota Hilux VI Pickup reference 47550-35190.
Whether you are an automotive parts importer, wholesaler, distributor, or aftermarket brand, our team can review your product references and technical requirements to help you evaluate a suitable sourcing solution.
• Selected Product References: Explore wheel cylinder references for multiple vehicle applications.
• Technical Specification Review: Discuss bore diameter, material, mounting configuration, and hydraulic connections.
• Documented Performance Testing: Review available test evidence for the specific product covered by the applicable report.
• B2B Sourcing Support: Discuss product requirements, order quantities, packaging, and supply arrangements.
Looking for a drum brake wheel cylinder supplier in China?
Send us your OE reference, existing part number, drawing, or product sample to start a product review.
A drum brake wheel cylinder is a hydraulic component used in a drum brake system. It converts hydraulic pressure from the brake master cylinder into mechanical force, moving the brake shoes outward against the inner surface of the brake drum.
The wheel cylinder is an important part of the drum brake assembly. Its bore diameter, piston configuration, sealing components, mounting dimensions, and hydraulic connections must be compatible with the intended application.
For automotive parts importers and distributors, selecting the correct wheel cylinder is essential to reduce fitment issues and ensure that replacement components meet the required specifications.
When sourcing a replacement brake wheel cylinder, buyers should consider more than the vehicle name or product appearance. The exact reference number, bore diameter, installation position, and connection details should also be reviewed.
GDST supports product sourcing for hydraulic automotive components. Submit your product reference or technical requirements to discuss the information needed for compatibility verification.
GDST’s supplied product reference data covers selected applications for Bedford, BMW, Daihatsu, Fiat, Ford, Hino, Honda, Hyundai, Isuzu, Mazda, and Toyota.
The following table summarizes the available reference information. It is intended as a preliminary sourcing guide rather than a complete product catalog or a guarantee of fitment for every vehicle configuration.
|
Vehicle Make |
Model / Application |
OEM / Reference Numbers |
Bore Diameter |
Material |
Alignment Code |
|
Bedford |
SLR3 MFR MJR |
4247-021 |
1-11/16″ (42.86 mm) |
Iron |
R.RH |
|
BMW |
316/318/320 E30, 1984–1992 |
LPR4243; 3421154235; 3421154236 |
13/16″ (20.64 mm) |
Iron |
R |
|
Daihatsu |
S70, S75 |
47510-87204 |
7/8″ (22.23 mm) |
Aluminum |
F.RH.A |
|
Fiat |
126, 127, 147, Fiorino, Regata; FSO 126P, 127P |
4121616; LPR4405 |
3/4″ (19.05 mm) |
Iron |
R |
|
Ford |
Courier |
4M34-2N179AA |
15/16″ (23.81 mm) |
Iron |
R |
|
Hino |
MAE 10.1T, MGD 11.9T |
47510-1160 |
1-3/8″ (34.93 mm) |
Iron |
F.RH |
|
Honda |
Civic, 2001–2004 |
43300-S5A-003 |
3/4″ (19.05 mm) |
Aluminum |
R.RH |
|
Hyundai |
HD72, HD78 3.5T |
58120-45201 |
1-1/8″ (28.58 mm) |
Iron |
F.LH.F |
|
Isuzu |
ELF, NKR, NPR |
8-94414-691-0; 8-94414-691-1; 8-94414-691-2 |
1-3/16″ (30.16 mm) |
Iron |
F.LH |
|
Mazda |
E1300, E1400, E1600, E1800, E2000, E2200 |
S083-26-610; S121-26-610 |
11/16″ (17.46 mm) |
Iron |
R.RH |
|
Toyota |
Hilux VI Pickup |
47550-35170; 47550-35190; 47550-35280; 47550-35340 |
7/8″ (22.23 mm) |
Iron |
R |
Notes on product references:
• The reference numbers above are reproduced from the supplied product information. Exact OE status and cross-reference compatibility should be verified before ordering.
• The alignment code R means Rear. Compound codes such as R.RH, F.RH, and F.LH are retained as supplied; their complete interpretation should be confirmed before being converted into standardized installation-position descriptions.
• The Toyota reference group is associated with the Hilux VI Pickup application. The model 2319 test report is specifically associated with reference 47550-35190, as confirmed by GDST.
• Vehicle year, market, brake configuration, and exact fitment conditions should be verified for each requested reference.
The correct brake wheel cylinder must match the relevant mechanical and hydraulic requirements of the brake assembly. Bore diameter is an important selection parameter, but it does not independently establish interchangeability.
The following specifications should be considered when reviewing a product or preparing a quotation.
|
Technical Parameter |
Description |
Information Required for Confirmation |
|
Product Reference |
OEM or cross-reference number |
Exact reference and applicable GDST part number |
|
Bore Diameter |
Nominal internal cylinder diameter |
Approved drawing and specification |
|
Housing Material |
Iron or aluminum, as listed for the selected product |
Exact material grade and specification |
|
Installation Position |
Front or rear, where applicable |
Confirmed vehicle and brake assembly configuration |
|
Mounting Dimensions |
Bolt spacing and mounting geometry |
Engineering drawing or dimensional specification |
|
Hydraulic Inlet |
Brake line connection |
Thread size and port configuration |
|
Piston Configuration |
Internal piston arrangement |
Product drawing or technical specification |
|
Sealing Components |
Seals and dust boots |
Approved material and component specifications |
|
Bleeder Screw |
Bleeding connection, where fitted |
Thread specification, position, and supply configuration |
|
Overall Dimensions |
Product length, width, and relevant profile dimensions |
Approved drawing and dimensional tolerances |
The supplied product data includes nominal bore sizes from 11/16 inch to 1-11/16 inches.
|
Nominal Bore Diameter |
Approximate Metric Equivalent |
|
11/16″ |
17.46 mm |
|
3/4″ |
19.05 mm |
|
13/16″ |
20.64 mm |
|
7/8″ |
22.23 mm |
|
15/16″ |
23.81 mm |
|
1-1/8″ |
28.58 mm |
|
1-3/16″ |
30.16 mm |
|
1-3/8″ |
34.93 mm |
|
1-11/16″ |
42.86 mm |
These are nominal unit conversions based on the supplied inch sizes. The approved product drawing or specification should be used when determining exact dimensions and tolerances.
GDST’s selected Toyota Hilux VI Pickup wheel cylinder reference group includes 47550-35170, 47550-35190, 47550-35280, and 47550-35340.
The supplied product data identifies an iron housing, a nominal bore diameter of 7/8 inch, and a rear installation position.
Among these references, 47550-35190 is the specific reference associated with GDST’s model 2319 performance test report.
|
Product Attribute |
Specification |
|
Product Type |
Drum Brake Wheel Cylinder |
|
Vehicle Make |
Toyota |
|
Vehicle Application |
Hilux VI Pickup |
|
Reference Numbers |
47550-35170 / 47550-35190 / 47550-35280 / 47550-35340 |
|
Bore Diameter |
7/8″ (approximately 22.23 mm) |
|
Housing Material |
Iron |
|
Installation Position |
Rear |
|
Tested Reference |
47550-35190 |
|
Internal Drawing Number |
2319 |
|
Test Report Number |
GB-2319-2026042601 |
The test report records the nominal sample specification as φ22.22 mm. The product reference list identifies the bore as 7/8 inch, approximately 22.225 mm. These values are nominally consistent for product identification purposes; the approved drawing should govern the exact specification.
For replacement sourcing, please provide the required reference number and vehicle application so our team can review the relevant technical details.
Product performance and hydraulic sealing are important considerations when sourcing drum brake wheel cylinders for the automotive aftermarket.
GDST’s test report GB-2319-2026042601 documents type testing of a brake wheel cylinder identified by drawing number 2319. GDST has confirmed that this tested product corresponds to reference 47550-35190.
The report was issued on April 26, 2026, following testing conducted from April 15 to April 25, 2026. Two samples, identified as 01# and 02#, were tested.
The report cites SAE J101, Automotive Hydraulic Brake Wheel Cylinder Technical Requirements, as its test basis and concludes that the tested samples met the requirements referenced in the report.
|
Test Item |
Test Conditions / Acceptance Criteria |
Sample 01# Result |
Sample 02# Result |
|
Piston Movement and Return |
Piston return within 30 seconds maximum |
Less than 5 seconds |
Less than 6 seconds |
|
Low-Pressure Sealing |
200 ± 10 kPa; pressure drop ≤7 kPa over 30 ± 1 seconds |
2 kPa pressure drop |
1.5 kPa pressure drop |
|
High-Pressure Sealing |
12 ± 1.2 MPa; pressure drop ≤350 kPa over 30 ± 1 seconds |
120 kPa pressure drop |
90 kPa pressure drop |
|
Pressure Resistance |
35 ± 3.5 MPa for the tested bore-size category |
No leakage or abnormal condition reported |
No leakage or abnormal condition reported |
|
High-Temperature Durability |
120 ± 5°C; output pressure 7 ± 0.7 MPa; at least 70,000 cycles |
No leakage or abnormal condition reported |
No leakage or abnormal condition reported |
|
Post-High-Temperature Low-Pressure Sealing |
Pressure drop ≤7 kPa |
2.5 kPa |
2 kPa |
|
Post-High-Temperature High-Pressure Sealing |
Pressure drop ≤350 kPa |
130 kPa |
110 kPa |
|
Low-Temperature Performance |
−40 ± 3°C; output pressure 3.5 ± 0.3 MPa; 20 cycles |
No leakage or abnormal condition reported |
No leakage or abnormal condition reported |
|
Post-Low-Temperature Low-Pressure Sealing |
Pressure drop ≤7 kPa |
3 kPa |
3.5 kPa |
|
Post-Low-Temperature High-Pressure Sealing |
Pressure drop ≤350 kPa |
150 kPa |
140 kPa |
|
Static Leakage Inspection |
No visible leakage or abnormal condition |
No leakage or abnormal condition reported |
No leakage or abnormal condition reported |
Room-temperature performance
The report records piston movement and return times below the stated maximum. The low- and high-pressure sealing results were also within the acceptance limits specified in the report.
High-temperature durability
The report describes a durability test at 120 ± 5°C, with an output pressure of 7 ± 0.7 MPa, a frequency of 1,000 ± 100 cycles per hour, a piston stroke of 3 ± 0.5 mm per side, and at least 70,000 cycles. The report records no leakage, free piston movement, and no abnormal condition.
Low-temperature performance
The low-temperature test was conducted at −40 ± 3°C with an output pressure of 3.5 ± 0.3 MPa and 20 cycles. The report records no leakage, free piston movement, and no abnormal condition.
Static leakage inspection
The report records no leakage or abnormal condition during the static leakage inspection.
The documented results apply to the two tested samples associated with reference 47550-35190 under the reported test conditions. They should not be interpreted as proof that the other listed Toyota references or every product in the GDST range has undergone the same tests.
This report is a product-specific test record. It should not be described as an independent third-party certification.
For customers evaluating a new supplier or a specific sourcing project, the applicable technical documentation can be discussed with GDST.
GDST Auto Parts specializes in hydraulic automotive components for OE and aftermarket applications. Our manufacturing experience and product-focused approach support customers looking for replacement components and ongoing supply partnerships.
For buyers evaluating a brake wheel cylinder manufacturer, the following areas are important to discuss:
• Product Identification: Review part references, available specifications, and application information.
• Technical Evaluation: Discuss bore diameter, mounting features, hydraulic connections, and dimensional requirements.
• Manufacturing Requirements: Review the processes and product requirements relevant to the selected component.
• Quality Documentation: Confirm the applicable inspection records and available technical documents.
• Supply Planning: Discuss quantities, packaging, and the requirements for an ongoing supply program.
Specific manufacturing capabilities, customization options, and quality documentation should be confirmed for the requested product and project.
Brake wheel cylinders are safety-critical hydraulic components. Product suitability depends on the applicable design, material requirements, dimensional accuracy, sealing performance, and assembly quality.
GDST’s model 2319 report provides documented evidence of specific performance testing for reference 47550-35190.
For other wheel cylinder references, the applicable inspection requirements and available records should be reviewed individually.
When evaluating a product for your sourcing program, consider requesting the following documentation, where available:
• Approved product drawings and dimensional specifications.
• Material specifications for the selected product.
• Applicable inspection criteria and test records.
• Hydraulic sealing and performance test results.
• Product identification and traceability information.
• Packaging and shipment documentation.
The availability of each document depends on the selected product and applicable disclosure requirements.
GDST supports sourcing discussions for hydraulic automotive components intended for OE and aftermarket applications.
Submit your required product references and estimated quantities to discuss product matching, application verification, and supply requirements.
Provide a list of the wheel cylinder references you need. Our team can review the available product information and clarify which specifications require further confirmation.
Discuss reference matching, applicable product requirements, packaging specifications, and the feasibility of customer-specific projects.
Provide a product drawing, sample, or technical specification for an initial feasibility review. Development capability, tooling, validation, minimum order quantity, and commercial terms must be confirmed for each project.
To help us review your requirements efficiently, please provide as much of the following information as possible.
|
Information Required |
Recommended Details |
|
Product Reference |
OEM reference, cross-reference number, or existing supplier part number |
|
Vehicle Application |
Make, model, year, and brake configuration |
|
Technical Specifications |
Bore diameter, mounting dimensions, and hydraulic connection details |
|
Product Drawing or Photo |
Clear images of the cylinder, mounting points, and ports |
|
Required Quantity |
Estimated order quantity or demand forecast |
|
Packaging Requirements |
Standard packaging or requested customer-specific packaging |
|
Quality Documentation |
Applicable drawings, inspection records, or test documentation |
Not sure which part number you need? Send us a clear product photo, drawing, or vehicle application. Our team can review the information and advise on the next steps.
A wheel cylinder is used in a drum brake system to move the brake shoes against the brake drum. A brake caliper is used in a disc brake system to apply the brake pads against the rotor. They are different components and are not interchangeable.
The supplied product data includes selected references for Bedford, BMW, Daihatsu, Fiat, Ford, Hino, Honda, Hyundai, Isuzu, Mazda, and Toyota. Exact vehicle fitment and current product availability should be confirmed for the requested reference.
The selected references range from 11/16 inch to 1-11/16 inches, approximately 17.46 mm to 42.86 mm. The exact specification must be confirmed against the relevant product drawing.
The supplied product data lists iron and aluminum. Exact material grades and specifications depend on the selected product and should be confirmed before ordering.
Reference 47550-35190 is associated with GDST’s model 2319 performance test report, GB-2319-2026042601.
The report documents room-temperature performance, high-temperature durability, low-temperature performance, and static leakage inspection. The reported results for the two tested samples met the requirements referenced in the report.
No. The documented test report is associated with reference 47550-35190. Testing coverage for references 47550-35170, 47550-35280, and 47550-35340 should be confirmed separately.
You can submit an existing reference number, product photo, drawing, or physical sample for an initial review. Compatibility must be confirmed against the applicable technical specifications.
A sample or drawing can be submitted for an initial feasibility review. Development capability, tooling, validation requirements, cost, and minimum order quantity depend on the specific project.
MOQ depends on the product reference, order quantity, and any customization requirements. Submit your required references and quantities so the applicable terms can be reviewed.
Lead time depends on product availability, order quantity, production requirements, and any necessary validation. A confirmed lead time should be established after the product and commercial details have been reviewed.
Yes. You can submit a list of required references and quantities in one inquiry. Include the available vehicle application details and any technical requirements to help our team review your request.
Looking for a reliable drum brake wheel cylinder manufacturer for your automotive aftermarket business?
GDST can review your required references, vehicle applications, technical specifications, and available product documentation to help you evaluate your sourcing requirements.
To get started, please provide:
• Required OEM or cross-reference numbers.
• Vehicle make and model, where available.
• Estimated order quantities.
• Product drawings, photos, or technical specifications.
• Packaging and quality documentation requirements, if applicable.
Our team will review the information provided and discuss the applicable product specifications and quotation requirements.
GDST Auto Parts — Hydraulic Automotive Components for OE and Aftermarket Applications.
