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E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
DZ16251843001
Dongfeng
| Attribute | Specification |
|---|---|
| Product Name | Air Conditioning Compressor Assembly |
| Manufacturer | SHACMAN Original Equipment; commonly supplied by Sanden, Aotejia, or designated OEM partners |
| Primary Part Number | DZ16251843001 |
| Alternative Names | AC Pump, Refrigerant Compressor, Clutch-Type A/C Compressor |
| Drive Type | Belt-driven with electromagnetic clutch |
| Electrical System | 24V DC (standard for heavy trucks) |
| Compressor Type | Swash plate or scroll type (model-dependent), fixed displacement |
| Housing Material | High-strength alloy steel and aluminum casting |
| Sealing Design | Reinforced shaft seal (improved anti-leakage in 2025 models) |
| Application Class | Heavy-Duty Commercial Trucks & Specialized Chassis |
Name1
Name2
⚠️ Failure to follow these guidelines can lead to premature failure, poor cooling, or complete compressor lock-up.
Use Correct Refrigerant & Oil
❗ Only use R134a refrigerant and PAG 100 (or equivalent) synthetic oil.
❌ Never mix with mineral oil, POE oil (unless specified), or non-standard lubricants.
Incompatible oils cause seal swelling, reduced lubricity, and internal wear.
Verify Internal Oil Level Before Installation
Drain contaminated oil
Flush all lines thoroughly
Add correct amount of fresh PAG oil per repair manual
Check if the new compressor contains pre-charged oil.
If the old system leaked or failed due to seizure:
Under-lubrication → bearing wear, piston scuffing
Over-lubrication → poor heat exchange, high pressure spikes
Replace Receiver-Drier (Desiccant Filter)
The receiver-drier (accumulator/dryer bottle) must be replaced every time the system is opened.
Old desiccant becomes saturated and loses moisture-absorbing capacity.
Moisture in the system leads to acid formation and internal corrosion.
Flush System After Compressor Failure
Metal debris and carbon deposits remain in hoses and condenser
Perform full chemical flush using approved solvent
Replace inline filters if available
If the previous compressor seized or burned out:
Failure to clean results in instant damage to the new compressor
Check Refrigerant Charge Quantity
Follow exact charge weight listed on the driver’s side door label or service plate.
Typical range: 650–850 grams, depending on system size
Overcharging → high-side pressure spike → compressor valve damage
Undercharging → poor cooling, overheating, cycling issues
Inspect Drive Belt Tension & Alignment
Ensure proper tension: firm but not over-tightened
Misaligned pulleys cause belt edge wear and increase load on front bearing
Excessive tension shortens compressor bearing life and risks oil leakage
Operate Periodically – Even in Winter
Run the A/C system for 5–10 minutes every two weeks, regardless of season.
This circulates refrigerant oil to keep seals lubricated and prevents drying/cracking.
Dry seals are a leading cause of summer-season refrigerant leaks after winter storage.
| Attribute | Specification |
|---|---|
| Product Name | Air Conditioning Compressor Assembly |
| Manufacturer | SHACMAN Original Equipment; commonly supplied by Sanden, Aotejia, or designated OEM partners |
| Primary Part Number | DZ16251843001 |
| Alternative Names | AC Pump, Refrigerant Compressor, Clutch-Type A/C Compressor |
| Drive Type | Belt-driven with electromagnetic clutch |
| Electrical System | 24V DC (standard for heavy trucks) |
| Compressor Type | Swash plate or scroll type (model-dependent), fixed displacement |
| Housing Material | High-strength alloy steel and aluminum casting |
| Sealing Design | Reinforced shaft seal (improved anti-leakage in 2025 models) |
| Application Class | Heavy-Duty Commercial Trucks & Specialized Chassis |
Name1
Name2
⚠️ Failure to follow these guidelines can lead to premature failure, poor cooling, or complete compressor lock-up.
Use Correct Refrigerant & Oil
❗ Only use R134a refrigerant and PAG 100 (or equivalent) synthetic oil.
❌ Never mix with mineral oil, POE oil (unless specified), or non-standard lubricants.
Incompatible oils cause seal swelling, reduced lubricity, and internal wear.
Verify Internal Oil Level Before Installation
Drain contaminated oil
Flush all lines thoroughly
Add correct amount of fresh PAG oil per repair manual
Check if the new compressor contains pre-charged oil.
If the old system leaked or failed due to seizure:
Under-lubrication → bearing wear, piston scuffing
Over-lubrication → poor heat exchange, high pressure spikes
Replace Receiver-Drier (Desiccant Filter)
The receiver-drier (accumulator/dryer bottle) must be replaced every time the system is opened.
Old desiccant becomes saturated and loses moisture-absorbing capacity.
Moisture in the system leads to acid formation and internal corrosion.
Flush System After Compressor Failure
Metal debris and carbon deposits remain in hoses and condenser
Perform full chemical flush using approved solvent
Replace inline filters if available
If the previous compressor seized or burned out:
Failure to clean results in instant damage to the new compressor
Check Refrigerant Charge Quantity
Follow exact charge weight listed on the driver’s side door label or service plate.
Typical range: 650–850 grams, depending on system size
Overcharging → high-side pressure spike → compressor valve damage
Undercharging → poor cooling, overheating, cycling issues
Inspect Drive Belt Tension & Alignment
Ensure proper tension: firm but not over-tightened
Misaligned pulleys cause belt edge wear and increase load on front bearing
Excessive tension shortens compressor bearing life and risks oil leakage
Operate Periodically – Even in Winter
Run the A/C system for 5–10 minutes every two weeks, regardless of season.
This circulates refrigerant oil to keep seals lubricated and prevents drying/cracking.
Dry seals are a leading cause of summer-season refrigerant leaks after winter storage.
