Yimi (Guangzhou) Automotive Parts Co, Ltd
| Payment Terms | T/T,Western Union |
| Supply Ability | 10000 pcs/month |
| Delivery Time | 5-8 Work Days |
| Packaging Details | Neutral Package or as customers’ request |
| Voltage | 12V DC |
| Material | High‑temp polymer housing, electric DC motor, sealed impeller |
| Flow rate | ≥ 800 L/h at 0.5 bar back pressure |
| Current draw | 2.0–3.5 A at full load |
| Noise level | ≤ 45 dB(A) |
| Operating temperature | –30°C to +130°C |
| Service life | 150,000 km+ |
| Durability cycles | 5,000 on/off cycles |
| Brand Name | YIMI |
| Model Number | VW Golf Jetta Audi 1.4 TSI Twincharger |
| Certification | ISO/TS16949 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,Western Union | Supply Ability | 10000 pcs/month |
| Delivery Time | 5-8 Work Days | Packaging Details | Neutral Package or as customers’ request |
| Voltage | 12V DC | Material | High‑temp polymer housing, electric DC motor, sealed impeller |
| Flow rate | ≥ 800 L/h at 0.5 bar back pressure | Current draw | 2.0–3.5 A at full load |
| Noise level | ≤ 45 dB(A) | Operating temperature | –30°C to +130°C |
| Service life | 150,000 km+ | Durability cycles | 5,000 on/off cycles |
| Brand Name | YIMI | Model Number | VW Golf Jetta Audi 1.4 TSI Twincharger |
| Certification | ISO/TS16949 | Place of Origin | China |
| High Light | Magneti Marelli auxiliary water pump EA111 ，VW 1.4 TSI twincharger water pump ，OEM standard auxiliary pump post-run cooling | ||
The Magneti Marelli Water Pump Assembly (OEM Numbers: 03C121004J / 03C 121 004 J) is a premium-quality, direct replacement auxiliary coolant pump engineered specifically for Volkswagen Group vehicles equipped with the EA111 1.4 TSI twincharger engine.
Electronically controlled auxiliary water pump for EA111 1.4 TSI twincharger engines. Circulates coolant post-shutdown to prevent heat soak, protect turbocharger bearings, and maintain stable operating temperature.
| Part Number: | 03C121004J | Product Name: | Water Pump |
|---|---|---|---|
| Car Model: | VW Golf Jetta Audi | Engine Model: | VW TSI Twincharger |
| Condition: | 100% Brand New | Size: | Standard |
| Weight: | Standard | Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe | ||
| Package: | Neutral Packing Or Make It As Requested | ||
| Material: | High-strength aluminum alloy & precision bearings | Cooling Type: | Engine coolant circulation |
| Installation: | Direct OEM replacement | Quality Standard: | OEM equivalent / ISO quality control |
| Symptom | Likely Cause | Action |
|---|---|---|
| Gurgling / boiling sounds after engine shutdown | Auxiliary pump not running — heat soak causing coolant to boil | Replace pump; verify electrical supply |
| Check Engine Light with DTC P261A / P261B / P2681 | Pump circuit open, short, or pump not responding | Check fuse, relay, wiring; replace pump if seized |
| Turbocharger oil leak (seal failure) | Excessive turbo bearing temperature due to inadequate post-run cooling | Replace pump and turbocharger (if damaged) |
| No pump operation audible after engine off | Pump motor seized or electrical failure | Replace pump; inspect relay and fuse |
| Engine overheats only in stop-start traffic | Auxiliary pump not providing supplemental coolant flow | Replace pump; flush cooling system |
| Intermittent coolant level warnings | Pump seal leaks causing slow coolant loss | Replace pump and O-ring; inspect hoses |
For pricing, availability, or bulk purchase of the Magneti Marelli Auxiliary Water Pump 03C121004J for VW EA111 1.4 TSI Twincharger applications, please contact our sales team for a competitive wholesale quote and expert technical support. We respond to all inquiries within 24 hours.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2005
Total Annual:
8000000-10000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Yimi(Guangzhou) Automotive Parts Co,Ltd located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv... Yimi(Guangzhou) Automotive Parts Co,Ltd located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality automotiv...
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