Guangzhou Yuanfenghang Automotive Parts Co., Ltd
| Payment Terms | L/C,D/A,MoneyGram,D/P,T/T,Western Union |
| Supply Ability | 3000 |
| Delivery Time | 5-15Days |
| Packaging Details | Cardboard box or Wooden box |
| Part Number | 13641437487 13647509752 |
| Product Name | Fuel Injector O-Ring |
| color | Black |
| Packaging | 8 pieces/set (4 upper, 4 lower seals) |
| OE Equivalent | BMW Genuine Part |
| Payment | T/T 30% as deposit, 70% before delivery |
| Brand Name | Czechdes |
| Model Number | BMW N20 N26 N55 B58 B48 N63TU，etc. |
| Certification | ISO 9001 IATF 16949 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/A,MoneyGram,D/P,T/T,Western Union | Supply Ability | 3000 |
| Delivery Time | 5-15Days | Packaging Details | Cardboard box or Wooden box |
| Part Number | 13641437487 13647509752 | Product Name | Fuel Injector O-Ring |
| color | Black | Packaging | 8 pieces/set (4 upper, 4 lower seals) |
| OE Equivalent | BMW Genuine Part | Payment | T/T 30% as deposit, 70% before delivery |
| Brand Name | Czechdes | Model Number | BMW N20 N26 N55 B58 B48 N63TU，etc. |
| Certification | ISO 9001 IATF 16949 | Place of Origin | China |
| High Light | N63TU Car Engine Seals ，BMW N20 Car Engine Seals ，13641437487 | ||
Fuel injector O-rings form critical seals between:
Injector nozzle and cylinder head (preventing combustion chamber leaks)
Injector body and fuel rail (maintaining high-pressure fuel delivery)
Sealing Challenges Addressed:
| Feature | Detail |
|---|---|
| Material | Fluoroelastomer (FKM) - Superior to standard nitrile rubber |
| Pressure Rating | 250 bar burst pressure (Exceeds BMW N20/B58 requirements) |
| Precision Fit | Laser-measured dimensions (Ø8.5mm x Ø3.5mm ±0.05mm) |
| Dual-Lip Design | Secondary sealing edge for backup protection |
| Color Coding | Blue (intake side) / Black (fuel rail side) for foolproof installation |
Prevents:
✓ Fuel leaks causing fire hazards
✓ Air intrusion leading to lean codes (P0171/P0174)
✓ Oil dilution from fuel seepage
Compatible With:
✓ Gasoline/Diesel variants
✓ Up to E85 ethanol fuels
Material Compounding: FKM blended with thermal stabilizers
Precision Molding: Computer-controlled injection molding at 180°C
Post-Curing: 4-hour oven treatment for molecular alignment
QC Testing:
100% pressure testing at 300 bar
Dimensional verification via optical comparators
Tools Required:
O-ring pick tool
Silicone grease (BMW-approved Glycerin)
Step-by-Step:
Clean injector seats with brake cleaner
Lubricate new O-rings lightly with grease
Install using twisting motion (never stretch)
Torque fuel rail bolts to 9 N·m in crisscross pattern
Q: How often should O-rings be replaced?
A: Every 60,000 miles or when injectors are serviced
Q: Can I reuse old O-rings?
A: Never - Compression set causes 70% seal failure
Q: Why does my BMW need special FKM material?
A: Standard rubber degrades in direct injection systems within 2 years
Q: Error codes after replacement?
A: Reset adaptations with ISTA/Delphi tool
| BMW Model | Engine Code | Model Year | Application Position |
|---|---|---|---|
| 3 Series (F30/F35) | N20/N26 | 2012-2018 | Dual-seal (fuel rail + cylinder head) |
| 5 Series (F10) | N55 | 2010-2016 | High-pressure direct injection system |
| X3 (F25) | B48 | 2015-2021 | Turbocharger interface |
| 7 Series (G11/G12) | B58 | 2016-2023 | Direct injection + EVAP system |
| X5 (F15) | N63TU | 2014-2018 | High-temp/pressure sealing |
Company Details
Business Type:
Manufacturer
Total Annual:
5000000-10000000
Employee Number:
100~150
Ecer Certification：
Active Member
Guangzhou Yuanfenghang Auto Parts Co., Ltd. is a professional manufacturer and wholesaler specializing in high-end automotive parts, focusing on providing genuine and premium aftermarket parts for luxury brands such as Mercedes-Benz, BMW, Land Rover, and Jaguar. With over 138 employees, the compa... Guangzhou Yuanfenghang Auto Parts Co., Ltd. is a professional manufacturer and wholesaler specializing in high-end automotive parts, focusing on providing genuine and premium aftermarket parts for luxury brands such as Mercedes-Benz, BMW, Land Rover, and Jaguar. With over 138 employees, the compa...
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