GDST Auto Parts is a China manufacturer and supplier of automotive brake master cylinders for wholesalers, distributors, and aftermarket brands. With over 2,000 models, OE reference matching, IATF 16949 and ISO 9001 certifications, and OEM/ODM private-label support, GDST provides bulk sourcing and customized packaging solutions.
Looking for a reliable automotive brake master cylinder manufacturer for your aftermarket distribution business, wholesale program, or private-label brand?
Established in 1995, Wuhu GDST Auto Parts Co., Ltd. has developed more than 2,000 brake master cylinder models for a range of automotive applications. We support international buyers with product sourcing, OE reference matching, technical specification review, and customized packaging solutions.
Whether you need established replacement models or want to evaluate a new sourcing project, GDST can help you identify the relevant product and clarify its technical and commercial requirements.
• More than 2,000 brake master cylinder models developed
• Minimum order quantity: 100 pieces per model
• Reference production lead time: 60 days
• One-year warranty after the customer receives the goods
• IATF 16949 and ISO 9001 quality management system certifications
• OEM/ODM and private-label packaging support
A brake master cylinder converts mechanical input from the brake pedal into hydraulic pressure for the vehicle’s braking system. Its internal components, bore size, mounting configuration, hydraulic connections, and sealing characteristics must be compatible with the intended vehicle application.
GDST has developed more than 2,000 brake master cylinder models, supporting buyers looking for replacement parts across different vehicle brands and applications.
Our catalog includes models with different body materials, sizes, mounting arrangements, and hydraulic configurations. The actual specifications depend on the individual part number and intended application.
For accurate sourcing, we recommend matching the product by OE reference number and confirming the relevant technical details before ordering.
If you cannot identify a suitable model from the catalog, send us the existing part number, vehicle information, photographs, technical drawing, or sample details for review.
The following table presents 10 representative models from GDST’s current product reference sheet. It demonstrates the range of OE references, sizes, materials, and vehicle applications available for sourcing.
|
OE Number |
Size (as listed) |
Material |
Make |
Model |
|
47201-87311 |
1 1/8″ |
Iron |
Daihatsu |
V78 / V89 |
|
47207-37160 |
1 3/16″ |
Aluminum |
Hino |
XZU700 / 710 / 720 / 730 / 775 |
|
46100-S04-A01 |
13/16″ |
Aluminum |
Honda |
Civic |
|
58510-1G000 |
7/8″ |
Aluminum |
Hyundai |
Accent |
|
8-97033-639 |
1 1/16″ |
Aluminum |
Isuzu |
ELF |
|
BR70-43-400 |
7/8″ |
Aluminum |
Mazda |
BG323 |
|
4625A457 |
15/16″ |
Aluminum |
Mitsubishi |
Pajero |
|
46010-01G00 |
1″ |
Aluminum |
Nissan |
Patrol |
|
47201-BZ290 |
7/8″ |
Aluminum |
Proton |
Alza |
|
51100-77500 |
13/16″ |
Aluminum |
Suzuki |
Carry Futura |
These examples are provided for preliminary product identification. Vehicle fitment, model-year coverage, and the exact meaning of each dimensional specification should be confirmed against the applicable product drawing or technical record.
For a quotation, please provide the OE numbers and required quantities for each model. GDST can then review the requested items against the available catalog and confirm the next steps.
Different brake master cylinders may look similar but have different internal configurations and installation requirements. Before placing an order, buyers should verify the following information for the selected reference.
|
Technical parameter |
Information to confirm |
|
OE reference number |
Original number or verified cross-reference |
|
Product size |
Confirm the dimensional definition and nominal size for the model |
|
Body material |
Iron, aluminum, or another specified material |
|
Hydraulic circuit |
Applicable circuit arrangement and internal configuration |
|
Reservoir |
Reservoir design and connection configuration |
|
Hydraulic ports |
Number, thread specification, position, and orientation |
|
Mounting dimensions |
Mounting-hole spacing, flange dimensions, and installation geometry |
|
Pushrod connection |
Connection dimensions and operating requirements |
|
Sealing components |
Material and specifications for the intended brake fluid and application |
|
Electrical interfaces |
Sensor or connector details, where applicable |
|
Packaging |
Standard packaging or approved customized packaging |
|
Quality documentation |
Applicable inspection records and test documentation |
The appropriate bore size and hydraulic configuration depend on the complete braking system. A master cylinder should not be selected solely on the basis of a similar appearance or a nominal size.
For a new or difficult-to-identify application, GDST may require a drawing, additional measurements, or a physical sample before confirming the proposed reference.
GDST’s supplied raw-material documentation identifies ZL111 aluminum alloy as the material used for applicable aluminum products.
The document identifies the material as ZAlSi9Cu2Mg, alloy code ZL111, under GB/T 1173-1995. It describes the alloy as suitable for castings with complex shapes, high loads, and high airtightness requirements, including components used in high-pressure gas and liquid applications.
The same document lists the material hardness as greater than 110 HB.
|
Element or property |
Value recorded in GDST’s material document |
|
Silicon (Si) |
8.0–10.0% |
|
Copper (Cu) |
1.3–1.8% |
|
Manganese (Mn) |
0.10–0.35% |
|
Magnesium (Mg) |
0.4–0.6% |
|
Zinc (Zn) |
0.1% |
|
Titanium (Ti) |
0.10–0.35% |
|
Aluminum (Al) |
Balance |
|
Iron (Fe), sand casting |
0.4% |
|
Iron (Fe), metal-mold casting |
0.4% |
|
Tin (Sn), impurity |
≤0.01% |
|
Lead (Pb), impurity |
≤0.05% |
|
Total impurities |
≤1.0% for the listed casting categories |
The values above reproduce the information in GDST’s supplied material reference. Actual material conformity should be established through the applicable material specification and batch documentation.
Material selection is product-dependent. The ZL111 specification applies to the relevant aluminum components and should not be interpreted as the material specification for every brake master cylinder in the catalog.
Airtightness is an important consideration for hydraulic brake components. GDST’s supplied inspection document describes a non-destructive airtightness test using pressure or vacuum and monitoring changes in the gauge reading to assess sealing performance.
The documented procedure for brake master cylinders includes the following steps.
|
Test stage |
Procedure described in the supplied work instruction |
| 1. Equipment check |
Confirm that the testing instrument is in good condition. |
| 2. Product positioning |
Place the brake master cylinder on the workbench and operate the pushrod control pedal. |
| 3. Vacuum application |
Position the vacuum plug close to the reservoir sealing ring and apply vacuum until the gauge reading reaches the documented range of 0.04–0.08 MPa. |
| 4. Gauge observation |
Observe the vacuum gauge for 5 seconds. The documented procedure specifies no drop in the gauge pointer during this period. |
| 5. Pushrod release |
Release the pushrod control pedal. The documented criterion specifies that the gauge pointer should return to below 0.03 MPa within 2 seconds. |
| 6. Second-cavity check |
Repeat the relevant steps to test the second cavity, where applicable. |
The purpose of this procedure is to identify potential sealing issues by monitoring the gauge response under the specified test conditions.
The numerical criteria above are reproduced from GDST’s supplied work instruction. Their interpretation depends on the actual gauge convention, equipment setup, and applicable product-specific procedure. Confirm these details with the quality team before using the figures as public acceptance criteria.
For buyers requiring further technical information, the applicable inspection procedure and available product-specific test documentation can be discussed during the quotation process.
The piston is an important internal component of a brake master cylinder. Its surface condition and interaction with the sealing components affect the operation of the assembled hydraulic component.
GDST’s supplied piston documentation identifies the following features for the documented piston design:
• Hard-oxidized surface: The document describes the piston surface as hard-oxidized, smooth, and hard.
• Assembled piston treatment: The documented assembled piston has a grease-coated surface to facilitate installation and help reduce wear during use.
• Component quality: The document compares piston samples with different surface conditions and highlights the importance of surface quality and wear resistance.
These details provide a more specific explanation of GDST’s component selection and assembly considerations than a general statement about product quality.
The applicable surface treatment and assembly requirements should be confirmed for the particular model. Buyers with specific requirements can request relevant component details during technical review.
The rubber piston cup is a sealing component used in hydraulic systems. Its material and sealing performance are important considerations when selecting components for brake master cylinders.
GDST’s supplied component documentation identifies the following details:
• Material: EPDM rubber, designated EP-35 in the supplied document.
• Material sourcing: The document states that the EP-35 raw material is imported from Japan.
• Function: The piston cup is used to transmit hydraulic pressure and provide sealing in the applicable hydraulic assembly.
• Documented test reference: The supplied documentation includes the rubber piston cup used in product WT-2001G after more than 280,000 fatigue-test cycles.
The WT-2001G reference is a specific product example. It should not be interpreted as a universal fatigue-life rating for every piston cup or brake master cylinder in the GDST catalog.
For projects requiring specific durability criteria, test conditions, acceptance limits, or supporting records should be confirmed for the relevant product and application.
Established in 1995, GDST has developed its brake master cylinder range through ongoing product development and manufacturing experience.
GDST currently holds IATF 16949 and ISO 9001 quality management system certificates. Buyers requiring formal documentation should request the applicable certificates and confirm their scope and validity for the intended purchasing requirements.
Our supplied technical materials also document specific manufacturing and inspection considerations, including:
• Material identification for applicable aluminum products.
• Piston surface treatment and assembly lubrication.
• EPDM rubber piston cup material information.
• Vacuum-based airtightness inspection procedures.
• Product-specific fatigue-test references.
These records help buyers evaluate particular aspects of product design and manufacturing control. The applicable process and inspection requirements should be confirmed for each model rather than assumed to be identical across the entire catalog.
For safety-critical braking components, product selection should be based on verified fitment, applicable technical specifications, and suitable quality documentation.
GDST supports brand customization for buyers who want to develop or expand their own automotive aftermarket product lines.
Depending on the project, customers can provide an existing packaging design or request design assistance from GDST.
Option 1 — Customer-provided packaging design
If your company already has a designed packaging box, provide the artwork and relevant specifications for review. GDST can evaluate the proposed design and coordinate the next steps.
Option 2 — Packaging designed with GDST
If you do not yet have a packaging design, you can discuss your requirements with GDST. Our team can review the design requirements and help coordinate the proposed packaging solution.
To customize packaging using a customer’s brand logo, GDST requires a trademark registration certificate demonstrating that the brand belongs to the customer.
Custom color boxes are subject to the packaging supplier’s minimum order requirement of 1,000 boxes per size.
This requirement applies to the packaging size, not automatically to every individual brake master cylinder model. Whether multiple models can use the same box size depends on the actual product and packaging dimensions.
We recommend sending GDST your full model list before finalizing the packaging plan. Our team can review the proposed products, identify potential packaging-size groupings, and discuss the feasible customization arrangement.
|
Customization item |
Requirement |
|
Existing packaging artwork |
Customer can provide the design for review |
|
New packaging design |
Can be discussed with GDST |
|
Brand logo verification |
Trademark registration certificate required |
|
Custom color-box MOQ |
1,000 boxes per size |
|
Multiple-model packaging plan |
Subject to dimensional review |
|
Final packaging arrangement |
Confirmed after reviewing the product list, artwork, and order requirements |
Planning a private-label program? Send your model list and packaging requirements before placing the order so that the available options and packaging MOQ can be evaluated together.
GDST’s current reference commercial terms for brake master cylinder sourcing are summarized below.
|
Commercial item |
GDST reference term |
|
Minimum order quantity |
100 pieces per model |
|
Production lead time |
60 days |
|
Warranty period |
One year after the customer receives the goods |
|
Custom packaging |
Available subject to trademark verification, packaging design, and MOQ |
|
Packaging MOQ |
1,000 boxes per size for custom color boxes |
|
Final quotation |
Confirmed according to the selected models, quantities, packaging, and order requirements |
The 60-day lead time is a reference production schedule. The final delivery plan should be confirmed against the actual model list, order quantity, packaging requirements, and production schedule.
For more accurate quotation and order planning, please include your requested OE references, quantities per model, destination market, and any special packaging or documentation requirements.
Step 1 — Send your model list.
Provide OE numbers, vehicle applications, product photographs, or other available reference information. If you already have a list of required models, send the complete list for review.
Step 2 — Confirm product references.
GDST reviews the available information and identifies any technical details that need further confirmation before the quotation is finalized.
Step 3 — Review specifications and quality requirements.
Confirm the applicable product configuration, technical requirements, and any requested quality or inspection documentation.
Step 4 — Discuss packaging and branding.
If you need private-label packaging, provide your packaging artwork or design requirements together with the required trademark registration certificate. GDST can then review the packaging dimensions and applicable MOQ.
Step 5 — Confirm the quotation and delivery plan.
The selected models, quantities, packaging, warranty terms, and production schedule are confirmed before the order proceeds.
This process helps importers, distributors, wholesalers, and aftermarket brands clarify product and packaging requirements before committing to a bulk order.
Established manufacturing history: GDST’s brake master cylinder factory was established in 1995.
Broad product development coverage: More than 2,000 brake master cylinder models have been developed, giving buyers a substantial reference range for sourcing and product matching.
Documented component information: GDST can discuss applicable material specifications, piston surface treatment, rubber piston cup materials, and product-specific inspection requirements.
Airtightness inspection process: The supplied internal work instruction describes a vacuum-based method for assessing cylinder sealing performance.
Quality management certifications: GDST currently holds IATF 16949 and ISO 9001 certificates.
OEM/ODM and private-label support: Customers can submit existing packaging artwork or discuss new packaging design, subject to trademark verification and the packaging supplier’s MOQ.
Clear commercial terms: A reference MOQ of 100 pieces per model, a 60-day production lead time, and a one-year warranty after receipt of goods provide a starting point for purchasing discussions.
For buyers building a long-term replacement-parts supply program, the priority is to confirm the right part, verify its technical requirements, and agree on clear commercial and packaging arrangements.
1. How many brake master cylinder models has GDST developed?
GDST has developed more than 2,000 brake master cylinder models. The availability and suitability of a specific model should be confirmed against the current product reference and OE number.
2. What is the minimum order quantity?
The current MOQ is 100 pieces per model. Please send the required model list so GDST can confirm the applicable order arrangement.
3. What is the production lead time?
The current reference lead time is 60 days. The final schedule depends on the selected models, quantities, packaging requirements, and confirmed production plan.
4. What is the warranty period?
GDST’s current warranty term is one year after the customer receives the goods. The applicable terms should be confirmed in the quotation or purchase agreement.
5. Which quality management certifications does GDST hold?
GDST currently holds IATF 16949 and ISO 9001 certificates. Buyers can request the relevant documentation and confirm the applicable scope.
6. What information is required to identify the correct brake master cylinder?
An OE number is the preferred starting point. If it is unavailable, provide the vehicle make, model, year, engine information where relevant, product photographs, dimensions, or a technical drawing.
7. Does GDST perform airtightness testing on brake master cylinders?
GDST’s supplied inspection document describes a vacuum-based airtightness testing procedure that monitors gauge readings over specified periods and repeats the check on the second cavity where applicable. The applicable test requirements should be confirmed for the requested product.
8. What material is used for GDST’s aluminum brake master cylinders?
GDST’s supplied material documentation identifies ZL111 aluminum alloy for applicable aluminum products. The relevant material specification and supporting documentation should be confirmed for the selected model.
9. What material is used for the rubber piston cup?
GDST’s supplied component document identifies EPDM rubber designated EP-35 and states that the raw material is imported from Japan. Material details should be confirmed for the applicable product.
10. Can GDST customize packaging with our own brand?
Yes. Customers can provide their existing packaging design or discuss design assistance with GDST. A trademark registration certificate demonstrating ownership of the brand is required for logo customization.
11. What is the MOQ for customized color boxes?
The packaging supplier requires at least 1,000 boxes per size. Send GDST your complete model list so the required dimensions and possible packaging arrangements can be reviewed before an order is finalized.
12. Can several brake master cylinder models share the same custom packaging size?
Potentially, depending on the actual dimensions and packaging requirements of each model. GDST can review the model list and discuss suitable arrangements. Compatibility should be confirmed rather than assumed.
13. Can GDST help if the required model is not immediately identifiable?
Yes. Send the OE number, photographs, technical drawings, measurements, or sample details available to you. GDST can review the information and advise on the next steps for product identification.
Looking for an automotive brake master cylinder supplier for your next wholesale order, aftermarket product range, or private-label project?
Send GDST your model list, OE references, required quantities, and packaging requirements. Our team can review the available information and help you clarify product matching, technical requirements, and commercial terms.
