Boigevis Trading (guangzhou) Co., Ltd.
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China,Guangzhou ,Guangdong
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- Home>
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- High-selling water tank cap 3B0 121 321 for Sagitar, TT
- Product Details
- Company Details
Product Specification
|
|
|
|
| Point Of Origin |
Guangdong, China |
Payment Terms |
Western Union,T/T,D/P,D/A,L/C |
| Warranty |
12 Months |
Packaging Details |
Normal |
| Item Name |
water tank cap |
Shipping Way |
DHL UPS FEDEX EMS TNT |
| Delivery Time |
3-7days |
Quality |
High quality |
| Brand |
Boigevis |
OE NO. |
3B0 121 321 |
| Packing |
Boigevis packing |
Size |
Standard size |
| Car Model |
for Sagitar, TT |
Model Number |
3B0 121 321 |
| Brand Name |
Boigevis |
Place of Origin |
China |
Core Selling Points
Low-cost fast-moving cooling sealing accessory for mixed bulk orders
Expansion tank caps are frequently replaced aging consumables for Sagitar, Audi TT and other VAG models. Original caps suffer built-in sealing rubber hardening/cracking, pressure valve failure and plastic shell embrittlement after long-term high-temperature engine compartment environment and coolant vapor corrosion. Failed caps cause coolant leakage at tank mouth, unstable cooling system pressure, engine overheating under heavy load, dashboard low coolant warning and accelerated aging of radiator & water pump. Professional repair stores and global export distributors place continuous large-batch orders all year round, with stable profit space and minimal stocking pressure for dealers.
100% OE precise fit, direct twist-on installation without modification
Manufactured strictly following OEM original standards: outer thread specification, built-in pressure valve parameter, outer diameter, anti-slip double handle and internal sealing ring size fully match genuine 3B0121321. No extra gaskets or trimming required during replacement, perfectly lock onto expansion tank opening to greatly cut cooling system maintenance labor hours. Cross interchangeable equivalent codes: 1J0121321.
Compatible Vehicle Range
- Core matching models:
Volkswagen Sagitar (all generations), Audi TT MK1 / MK2
- Interchangeable VAG full platform:
VW Golf, Passat, Polo, Touran, Tiguan; Audi A3/A4/A5/A6/Q3/Q5; Skoda Octavia, Superb; Seat Leon
Reinforced high-temperature coolant-resistant integrated structure
- High-toughness modified PP plastic body, UV resistant, long-term high temperature not easy to fade or crack
- Thickened FKM fluorine rubber sealing gasket, compatible with ethanol mixed antifreeze, permanent anti-seepage
- Standard built-in constant pressure relief valve, automatically balance cooling system pressure
- Double parallel anti-slip twist handles, easy to disassemble without slipping even at high temperature
- Integrated anti-drop limit structure, avoid cap loosening and falling off under driving vibration
Stable pressure balance to protect full cooling assembly
Maintain rated working pressure inside the cooling circuit to raise coolant boiling point, effectively prevent engine temperature surge and overheating during climbing, high-speed and full-load driving. Automatically release excess pressure generated by coolant thermal expansion, avoid expansion tank deformation or bursting, reduce coolant loss and extend service life of radiator, water pipe and water pump.
Fully resolve typical cap failure faults
- Coolant seepage and liquid stains around expansion tank opening
- Pressure valve failure leading to engine overheating alarm under heavy load
- Aging sealing rubber hardening, cracking and loss of sealing performance
- Cap loosening caused by vibration, frequent coolant loss
- False low coolant warning light triggered by unstable system pressure
- Expansion tank plastic shell deformation due to unbalanced internal pressure
Rigorous multi-stage factory testing & sufficient spot stock
Every tank cap undergoes coolant immersion aging test, pressure relief calibration test, high-low temperature cycle test and repeated twist fatigue test before delivery, compliant with IATF 16949 international automotive quality standards. Mass ready stock supports mixed one-stop bulk procurement with expansion tanks, cooling hoses, radiators and complete VAG cooling overhaul kits. Custom neutral packaging and private label OEM services are available for cross-border wholesale buyers.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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Business Type:
Manufacturer
-
-
Total Annual:
10000000-50000000
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Employee Number:
150~200
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Ecer Certification：
Verified Supplier
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