397-5683 Water Pump is a new-type C7.1 coolant circulation component for B2B engine repair, overhaul, stocking, and wholesale sourcing.
The 397-5683 Water Pump YNF18858 is supplied as a new-type replacement for compatible C7.1 diesel engine cooling systems. Engine coolant is circulated through the cooling circuit so heat produced during operation can be transferred away from critical engine components and toward the radiator or corresponding heat exchanger.
Because this product is identified as a newer C7.1 water-pump configuration, version matching should be given particular attention during purchasing. Pumps used within the same engine family may differ in housing shape, mounting positions, coolant passages, or drive-side geometry.
For professional B2B buyers, the 397-5683 C7.1 water pump should be checked by part number, engine version, mounting-hole arrangement, coolant connection positions, drive-side structure, overall dimensions, and existing-pump photos. Correct version identification before bulk purchasing can reduce incorrect inventory, engine-repair delays, customer claims, and repeat international freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF18858 |
| Part Number | 397-5683 |
| Product Name | Engine Water Pump |
| Alternative Name | Coolant Pump / Cooling Water Pump / Engine Coolant Pump |
| Product Type | Engine Coolant Circulation Pump |
| Parts Category | Diesel Engine Cooling Parts |
| Engine Reference | C7.1 |
| Version Reference | New-Type / Updated Version |
| Main Function | Circulates Coolant Through the Engine Cooling Circuit |
| Application | Diesel Engine Cooling System |
| Working Medium | Engine Coolant |
| Fitment Check | Part Number / C7.1 Engine Version / Mounting Pattern / Coolant Ports / Drive Side / Dimensions / Existing Pump Photo |
| Quality Type | Aftermarket Replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping Method | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application | Description |
|---|---|
| C7.1 Diesel Engine | Used in compatible engine cooling configurations |
| New-Version Replacement | Suitable for matching corresponding updated pump configurations |
| Coolant Circulation | Maintains coolant movement through the engine circuit |
| Engine Overhaul | Suitable for replacement during major engine rebuilding |
| Cooling System Repair | Used when the original pump becomes worn or damaged |
| Overheating Inspection | Pump condition can be checked during cooling diagnosis |
| Machinery Workshop | Practical for construction equipment engine servicing |
| B2B Parts Stocking | Suitable for dealers, wholesalers, and engine parts distributors |
Q: What is YNF18858?
A: It is a new-type C7.1 engine water pump with reference number 397-5683.
Q: What does the water pump do?
A: It circulates engine coolant through the compatible cooling circuit.
Q: Why is version matching important?
A: Updated and earlier pump configurations may differ in mounting, housing, coolant connections, or drive-side geometry.
YNF Machinery supplies 397-5683 water pumps and related C7.1 engine cooling parts for machinery workshops, engine rebuilders, equipment dealers, wholesalers, fleet operators, and international importers.
The YNF18858 C7.1 water pump is identified as a newer configuration, so version matching is especially important for professional purchasing. Buyers should compare the part number together with pump-body shape, mounting pattern, coolant connections, drive-side structure, and overall dimensions before bulk ordering.
Buyers can provide the 397-5683 reference, C7.1 engine information, required quantity, mounting-side photos, drive-side photos, dimensions, and clear images of the removed pump for fitment checking.
Thermostats, radiator hoses, cooling fans, belts, pulleys, oil coolers, gasket sets, and other C7.1 engine components can also be consolidated into one order to simplify procurement and reduce fragmented international shipping costs.
