A1 AUTO PARTS CONNECTION
| Size Specification | 1-3/16" (1.1875 inch) |
| Packaging Details | brown box |
| Supply Capability | In-stock supply |
| Delivery Time | 5-8work days |
| Payment Terms | L/C,D/A,D/P,T/T |
| Supply Ability | 35000pcs-40000pcs/month |
| Packaging | Carton packaging |
| Material | EPDM (Ethylene Propylene Diene Monomer) |
| Part Number | SC-40493R / FC-7023 |
| Application | Automotive braking system |
| Model Number | SC-40493R / FC-7023 |
| Certification | TS16949 |
| Brand Name | confidential |
| Place of Origin | CHINA |
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Product Specification
| Size Specification | 1-3/16" (1.1875 inch) | Packaging Details | brown box |
| Supply Capability | In-stock supply | Delivery Time | 5-8work days |
| Payment Terms | L/C,D/A,D/P,T/T | Supply Ability | 35000pcs-40000pcs/month |
| Packaging | Carton packaging | Material | EPDM (Ethylene Propylene Diene Monomer) |
| Part Number | SC-40493R / FC-7023 | Application | Automotive braking system |
| Model Number | SC-40493R / FC-7023 | Certification | TS16949 |
| Brand Name | confidential | Place of Origin | CHINA |
| High Light | EPDM hydraulic wheel cylinder seal ，brake cup seal replacement ，wheel cylinder seal with warranty | ||
This product is a hydraulic wheel cylinder rubber EPDM brake cup seal, manufactured from high-elasticity EPDM material, offering excellent brake fluid resistance, rebound resilience, and high-temperature aging resistance. It is compatible with brake wheel cylinders across multiple vehicle models, supports customization for different OEM numbers, and can also be used as a piston seal or rod seal.
We specialize in manufacturing oil seals, valve seals, hydraulic seals, power steering seals, and rubber-related products. Brake wheel cylinder cup seals and seal rings are available from stock.
| Item | Content |
|---|---|
| Product Name | Automotive Cup Seal / Brake Cup Seal |
| Specification | SC-40493R |
| Size | 1-3/16" (1.1875 inch) |
| Color | Black |
| Material | EPDM (Ethylene Propylene Diene Monomer) |
| Type | Seal |
| Application | Automotive braking system |
| Packaging | Carton packaging |
| Minimum Order Quantity | 1 pc / 1000 pcs |
| Supply Method | In-stock supply, MOQ 300-500 per model |
Automotive brake systems use synthetic brake fluid (such as DOT 3, DOT 4), which is typically Glycol-based brake fluids or silicone-based, not mineral oil. EPDM offers excellent chemical resistance to Glycol-based brake fluids and has good rebound resilience, making it the dominant material for brake cup seals.
NBR material, while not dissolving immediately in Glycol-based brake fluid, is not resistant to high temperatures and aging, and can easily fail under complex braking conditions—potentially causing brake fluid leakage due to cup seal swelling or cracking.
| Size | Type | Vehicles | Position |
|---|---|---|---|
| 13/16" | Rear brake cup seal | Toyota 2Y models | Rear wheel cylinder |
| 1-1/8" | Large bore brake cup seal | Isuzu NHR, NKR models | Front wheel cylinder |
| 1-3/16" | Mikado large bore cup seal | Isuzu NPR, Mikado models | Front/Rear wheel cylinder |
| Code | Size | Seiken | OEM No. | Aftermarket No. | Fitment | Position |
|---|---|---|---|---|---|---|
| SC-47622R | 13/16" | 010-47622 | 90947-01127 (Toyota) | — | Toyota 2Y, Hiace, etc. | Rear wheel cylinder |
| SC-80353R | 1-1/8" | 010-80353 | 8-94119-532-0 (Isuzu) 8-94119-958-1 |
FC-3036 (Frenkit) WC-31018 / WC-31038 |
Isuzu NHR, NKR, 100P, light trucks & buses; Mazda Titan | Front wheel cylinder |
| SC-40493R | 1-3/16" | 010-40493 | 8-97103-027-3 (Isuzu) 8-97103-600-0 |
FC-7023 (cross-ref) | Isuzu NPR, Mikado, ELF NKR66/71, Hino, Toyota Dyna/Dutro 125HT | Front/Rear wheel cylinder |
SC-40493R (1-3/16") is primarily designed for "Isuzu NPR Mikado large bore." However, in the truck sector, Isuzu, Hino, Toyota Dyna, and Mitsubishi share certain brake wheel cylinder assemblies from large aftermarket factories at specific tonnage ratings. This cup seal is therefore also commonly used for brake wheel cylinder repairs on Toyota Dyna 125HT / 130HT trucks.
| Code | Size | SK Code | OEM Kit No. | Aftermarket Code | Contents |
|---|---|---|---|---|---|
| SC-47622R | 13/16" | SK-43981 / SK-43951 | 04474-20030 (Toyota) 04474-35030 |
D1526 (Autofren) RK-43951 |
Cup seals ×2, dust boots ×2, spring ×1 (1 wheel) |
| SC-80353R | 1-1/8" | SK-80351 / SK-80021 | 8-94119-533-0 (Isuzu) 8-97022-491-0 |
D1664 (Autofren) FC-3036 (seal ring kit) |
Large bore cup seals ×2, dust boots ×2 (front axle one side) |
| SC-40493R | 1-3/16" | SK-40491 / SK-80201 | 8-97103-028-0 (Isuzu) 8-94318-422-0 |
D1723 (international code) 990-0969 (Western CV classification) |
Mikado large bore cup seals ×2, dust boots ×2 (light truck single-wheel large bore) |
When purchasing repair kits, note that truck series are typically packaged as single wheel (1 wheel / Axle Side). If the customer needs to repair a complete front axle (left front + right front), the quantity of that SK number on the order must be multiplied by 2.
When repairing truck brake wheel cylinders, if only the cup seal is replaced without replacing the dust boot, external mud and water can enter. Since EPDM material is highly susceptible to abrasive wear from mud and sand, the new cup seal will quickly leak again. Therefore, it is recommended to replace the dust boot at the same time as the cup seal.
Quality Assurance:
Every component is manufactured under controlled production processes to ensure consistent dimensional accuracy and material integrity. Each unit undergoes the following quality checks before packaging:
Dimensional inspection – critical dimensions and sealing lip geometry are verified against design specifications
Material verification – EPDM compound is tested for hardness, elasticity, and chemical resistance
Surface finish inspection – surface quality is visually verified
Packaging inspection – each unit is sealed in protective packaging
Packaging Protection:
Each brake cup seal is individually sealed in protective packaging to prevent contamination and physical damage during storage and transit. The packaging includes a clear part number label for easy identification.
Service Commitment:
| Commitment | Description |
|---|---|
| Pre-sale support | Fitment verification assistance – we help confirm compatibility before you order |
| Timely dispatch | Orders are processed and shipped within the stated handling time |
| Secure packaging | Protective packaging to prevent transit damage |
| Responsive support | Customer service inquiries are typically addressed within 24 hours |
| Fair resolution | Any issues with your order will be reviewed and resolved promptly |
For in-stock pricing or model matching services on brake cup seals, wheel cylinder repair kits, and hydraulic seals, please feel free to contact us.
Product Line: Oil seals, valve seals, hydraulic seals, power steering seals, rubber products
Customization: OEM number customization supported. Drawings and samples welcome for inquiry.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
2000
Total Annual:
>Annual Revenue Range (internal use)
Employee Number:
10~15
Ecer Certification：
Verified Supplier
A1 Auto Parts Connection – Automotive Aftermarket Full parts for Hilux, RAV4,D-MAX, Ranger, Prado, Y62,IX35,JETOURT2,X70 & more.Suspension•Chassis •Steering fast moving parts.2-4 weeks delivery ,No MOQ ,12h-24h response Established in 2000 in Guangzhou, China, A1 Auto Parts... A1 Auto Parts Connection – Automotive Aftermarket Full parts for Hilux, RAV4,D-MAX, Ranger, Prado, Y62,IX35,JETOURT2,X70 & more.Suspension•Chassis •Steering fast moving parts.2-4 weeks delivery ,No MOQ ,12h-24h response Established in 2000 in Guangzhou, China, A1 Auto Parts...
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