 |
| Quantity: | |
|---|---|
Cylinder Block
for Komatsu
4990443
Diesel
Industries & Products We Serve
Engine Management: ECUs Controllers, Sensors,
Fuel System:Fuel Injectors, Injection Pumps, High-Pressure Lines
Engine Core Components: Cylinder Blocks,Cylinder Heads, Crankshafts
Hydraulic System: Hydraulic Pumps, Valves, Motors
Electrical Components: Sensors, Starters, Alternators
| Parameter | Specification |
|---|---|
| Part Number | 4990443 (OEM) |
| Material | High-Strength Gray Cast Iron (Grade 250) |
| Compatible Engine | Komatsu 6D107 |
| Condition | New Aftermarket (OEM Quality) |
| Material | High-Grade Cast Iron (Certified) |
Technical Specifications Table
Who We Are
HeBei YiFeng Automobile Industry is a leading global supplier and exporter of high-quality heavy machinery parts, automotive parts, and industrial components. For 15 years, we have been the trusted partner for repair shops, distributors, and OEMs in North America and around the world, helping them keep their equipment running with minimal downtime.
Our extensive product portfolio includes essential components such as ECUs (Engine Control Units), fuel injectors, sensors, hydraulic pumps, cylinder blocks, cylinder heads, and controllers. Whether you're maintaining a fleet of Komatsu excavators, Caterpillar loaders, or Volvo trucks, we provide the parts you need, when you need them.
FAQ：
Q：OEM vs aftermarket cylinder heads?
OEM: Perfect fit but expensive
Good aftermarket: Same-grade cast iron, 55% cheaper (1-year warranty)
Q: What else should be replaced with the head?
Head gasket (¥200-500)
Valve seals (¥15/each ×16)
Bolts (¥30/each ×10)
Q: How to check if a head is warped?
DIY check: Steel ruler test - gap >0.1mm fails
Pro method: Surface grinding machine measurement
Q: Shipping time to Africa/South America?
Air: 5-20 days (DHL/UPS, ¥200-300/kg)
Sea: 35-50 days (FCL cheaper, ¥15-20/kg)
Q: Discounts for bulk orders?
10-20 units: 10% off
21-49 units: 15% off
50+ units: 20% off + free laser marking
Q: Do you offer technical support for installation?
Yes, our team of experienced mechanics is available to provide guidance.
To confirm fitment, provide:
1️⃣ Engine model (e.g. 6D95)
2️⃣ Old head photo
3️⃣ Block casting number
Industries & Products We Serve
Engine Management: ECUs Controllers, Sensors,
Fuel System:Fuel Injectors, Injection Pumps, High-Pressure Lines
Engine Core Components: Cylinder Blocks,Cylinder Heads, Crankshafts
Hydraulic System: Hydraulic Pumps, Valves, Motors
Electrical Components: Sensors, Starters, Alternators
| Parameter | Specification |
|---|---|
| Part Number | 4990443 (OEM) |
| Material | High-Strength Gray Cast Iron (Grade 250) |
| Compatible Engine | Komatsu 6D107 |
| Condition | New Aftermarket (OEM Quality) |
| Material | High-Grade Cast Iron (Certified) |
Technical Specifications Table
Who We Are
HeBei YiFeng Automobile Industry is a leading global supplier and exporter of high-quality heavy machinery parts, automotive parts, and industrial components. For 15 years, we have been the trusted partner for repair shops, distributors, and OEMs in North America and around the world, helping them keep their equipment running with minimal downtime.
Our extensive product portfolio includes essential components such as ECUs (Engine Control Units), fuel injectors, sensors, hydraulic pumps, cylinder blocks, cylinder heads, and controllers. Whether you're maintaining a fleet of Komatsu excavators, Caterpillar loaders, or Volvo trucks, we provide the parts you need, when you need them.
FAQ：
Q：OEM vs aftermarket cylinder heads?
OEM: Perfect fit but expensive
Good aftermarket: Same-grade cast iron, 55% cheaper (1-year warranty)
Q: What else should be replaced with the head?
Head gasket (¥200-500)
Valve seals (¥15/each ×16)
Bolts (¥30/each ×10)
Q: How to check if a head is warped?
DIY check: Steel ruler test - gap >0.1mm fails
Pro method: Surface grinding machine measurement
Q: Shipping time to Africa/South America?
Air: 5-20 days (DHL/UPS, ¥200-300/kg)
Sea: 35-50 days (FCL cheaper, ¥15-20/kg)
Q: Discounts for bulk orders?
10-20 units: 10% off
21-49 units: 15% off
50+ units: 20% off + free laser marking
Q: Do you offer technical support for installation?
Yes, our team of experienced mechanics is available to provide guidance.
To confirm fitment, provide:
1️⃣ Engine model (e.g. 6D95)
2️⃣ Old head photo
3️⃣ Block casting number