Guangzhou Suining Auto Parts Co., Ltd.
| Vehicle Model | QC4A2 |
| Payment Terms | L/C,D/A,D/P,T/T |
| Supply Ability | 5000PCS per month |
| Size | M14*L76mm |
| OEM | 6407905100500 |
| Model Number | 1324211-0521-001 |
| Place of Origin | CHINA |
| Certification | ISO,CE |
| Brand Name | JAC |
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Product Specification
| Vehicle Model | QC4A2 | Payment Terms | L/C,D/A,D/P,T/T |
| Supply Ability | 5000PCS per month | Size | M14*L76mm |
| OEM | 6407905100500 | Model Number | 1324211-0521-001 |
| Place of Origin | CHINA | Certification | ISO,CE |
| Brand Name | JAC | ||
| High Light | 6407905100500 Spark Plug ，Spark Plug for Gas Engine ，6407905100500 | ||
6407905100500 Spark Plug is a core ignition component mounted on the cylinder head of JAC QC4A2 gas engine. It generates high-voltage electric spark to ignite the mixed gas inside combustion chamber, ensuring accurate ignition timing and stable combustion cycle. This aftermarket spark plug fixes hard starting, intermittent misfire, rough idle and power loss caused by electrode wear, gap deviation, carbon fouling and insulator breakdown after long cycles of high-temperature operation. Reliable spark performance keeps fuel gas burning fully and reduces emission fault risks for JAC light commercial vehicles used for urban distribution and short-distance suburban freight transport.
Product Advantages Adopts high-performance electrode material with excellent heat resistance and anti-corrosion capability. Precision controlled spark gap maintains stable ignition energy. High-purity ceramic insulator provides reliable insulation and anti-breakdown performance. Each spark plug passes electrical discharge test and dimensional inspection before packing, OEM thread size, reach and hex specification for direct replacement.
| Item | Parameter |
|---|---|
| Part Number | 6407905100500 |
| Product Name | Spark Plug |
| Matching Engine | JAC QC4A2 |
| Material | High Temperature Alloy Electrode + Ceramic Insulator |
| Feature | High Voltage Ignition, Anti-Carbon Fouling, Stable Spark Gap, Long Service Life |
| MOQ | Negotiable |
| Application | Combustion chamber gas mixture ignition and energy release assembly |
Applicable Models Fit for JAC light-duty trucks and cargo vans equipped with QC4A2 gas engine, widely used for city parcel delivery and regional light cargo haulage.
FAQ
Q1: What abnormal signs show spark plugs are worn or fouled?
A1: Engine misfire, shaking idle, difficulty in startup and obvious increase of gas consumption.
Q2: What is the influence of incorrect spark plug gap?
A2: Too large gap causes weak spark; too small gap leads to premature electrode ablation and misfire.
Q3: What should we pay attention to during installation?
A3: Use correct torque, avoid over-tightening to prevent thread damage on cylinder head.
Q4: How to extend spark plug service life?
A4: Use qualified gas fuel and keep ignition coil working normally to reduce abnormal electrode erosion.
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
1989
Total Annual:
30000000-35000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
SuiNing Auto Parts Company (Abbrev. SN) is one of China’s leading auto parts supply chain enterprises. Founded in Guangzhou in 1989, SN adheres to the tenet of “customer-focused, market-oriented, competitive and innovative, quality-first”. &... SuiNing Auto Parts Company (Abbrev. SN) is one of China’s leading auto parts supply chain enterprises. Founded in Guangzhou in 1989, SN adheres to the tenet of “customer-focused, market-oriented, competitive and innovative, quality-first”. &...
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