Model: WP13
Part Number: 1001542896
Brands: Weichai Power
Engine Model: WP13, WP13.480, WP13.500, WP13.550, WP13.580
Engine Type: Diesel
Scope of application: heavy haulage trucks, mining dump trucks, construction machinery, generator sets
A 13-litre diesel produces a lot of heat at full load, and in mining or long-haul duty it produces that heat for hours at a time. Part 1001542896 is the belt-driven coolant pump for the WP13 family, circulating coolant through the block, head, oil cooler and radiator at a rate matched to the engine's heat output.
Because the WP13 often runs at sustained load, the cooling system has little margin. A pump that is slightly weak keeps the engine cool on flat ground and lets it climb on a gradient, and that intermittent pattern is the classic early symptom.
The pump fits WP13 engines from 480 to 580 horsepower in heavy trucks, mining dump trucks, large loaders and generator sets. Confirm the engine plate and the old pump number: industrial and marine variants can use a different pulley or inlet arrangement even when the pump body is the same casting.
The pump uses a cast iron housing, a precision cast impeller, a sealed bearing cartridge lubricated for life and a mechanical face seal. Each unit is bench tested rather than only inspected visually.
Each pump ships with a new gasket and O-ring, hub protected so the seal survives transit.
Coolant weep from the drain hole is the first sign. Noise comes later, when the bearing has lost lubricant, and a wobbling fan is the last warning before collapse.
A collapsed bearing lets the fan contact the radiator, turning a modest repair into an expensive one.
Most premature pump failures trace back to belt alignment. A worn tensioner, a misaligned idler or the wrong pulley offset side-loads the bearing continuously, and the seal starts weeping within a few thousand kilometres. Check the belt path with a straight edge and replace any component with play before fitting the new pump.
Match the engine plate, the old pump number and the pulley type. Send a photo of the old pump beside a ruler and we will confirm the casting before shipping. A correct pump with the wrong pulley destroys alignment on the first belt run.
Pumps last longest in clean systems with correct chemistry. Flush the radiator at interval, keep the coolant mixture in specification, replace the thermostat and pressure cap when due, and clean the core externally in dusty operations. Scale inside the housing reduces flow and increases load on the seal.
Coolant that disappears without an external leak is a different problem from a leaking pump. A weeping pump leaves white residue and a damp spot under the drain hole. A head gasket failure consumes coolant without trace, sometimes with bubbles in the radiator and a sweet smell at the exhaust. Pressure test the system before replacing the pump.
Pumps are compact and do not deteriorate in storage, which makes them sensible spares for mining fleets where downtime is expensive. Keep two on the shelf together with gaskets and thermostat housing seals so a repair is completed in one visit.
On a WP13 the fan is usually driven through a viscous hub, and a hub that no longer locks up produces overheating that looks exactly like a failing pump. Before replacing the pump, check that the fan spins freely when cold and locks when hot, and confirm the belt is not slipping under load.
Clean the radiator core externally as well. Mining and construction engines pack the fins with dust, and a core that is 30 percent blocked raises coolant temperature at full load even when the pump is delivering its rated flow. Cleaning the core costs nothing and often removes the symptom entirely.
Yes, the gasket and O-ring are supplied.
Only to reach a workshop. Coolant loss leads to overheating and head damage.
The pump comes with the hub. Tell us if you need the complete assembly.
Remove the belt and spin the pump by hand. Roughness or play confirms the bearing.
Browse the Weichai pump category, and pair the pump with the WP13 cylinder head 612700040030 or the WP13 cylinder liner 612700010010.
Weichai WP13 Water Pump (1001542896). This pump maintains coolant velocity across the liners and through the head. Poor flow shows up as a temperature rise under load, not at idle.
Measure pulley diameter and the distance from the mounting face to the pulley centreline. A correct body casting with the wrong pulley destroys belt alignment within hours.
Numbers beginning 1001 belong to the numeric series introduced as the older 61xx numbers were superseded. Both numbers may describe the same physical part. On this engine, confirm the WP13 application against the engine plate before ordering.
Drain and refill with the correct coolant mix and bleed the system completely. Air in the system causes hot spots and accelerates cavitation damage on the liners.
Ordering note. If the old number has been superseded, the replacement number is quoted alongside the original so the purchasing file stays consistent.
Related reading: Cylinder Liner Cavitation: Causes, Symptoms and Prevention
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WP13, WP13.480, WP13.500, WP13.550, WP13.580, and other Weichai series. |
| Shipping | By sea / air / express (DHL, FEDEX, TNT, UPS, EMS) |
| Packing | Standard exporting packing or as required |
| Payment Term | L/C, T/T, Western Union, Trade Assurance |
| Delivery Time | 3-7 days (depend on order) |
| Selling Point | 1. On-time Delivery 2. Genuine Quality Assurance 3. Professional Supplier |
The pump uses a cast iron housing, a precision cast impeller, a sealed bearing cartridge lubricated for life and a mechanical face seal. Each unit is bench tested rather than only inspected visually.
Each pump ships with a new gasket and O-ring, hub protected so the seal survives transit.
Coolant weep from the drain hole is the first sign. Noise comes later, when the bearing has lost lubricant, and a wobbling fan is the last warning before collapse.
A collapsed bearing lets the fan contact the radiator, turning a modest repair into an expensive one.
Most premature pump failures trace back to belt alignment. A worn tensioner, a misaligned idler or the wrong pulley offset side-loads the bearing continuously, and the seal starts weeping within a few thousand kilometres. Check the belt path with a straight edge and replace any component with play before fitting the new pump.
Match the engine plate, the old pump number and the pulley type. Send a photo of the old pump beside a ruler and we will confirm the casting before shipping. A correct pump with the wrong pulley destroys alignment on the first belt run.
Pumps last longest in clean systems with correct chemistry. Flush the radiator at interval, keep the coolant mixture in specification, replace the thermostat and pressure cap when due, and clean the core externally in dusty operations. Scale inside the housing reduces flow and increases load on the seal.
Coolant that disappears without an external leak is a different problem from a leaking pump. A weeping pump leaves white residue and a damp spot under the drain hole. A head gasket failure consumes coolant without trace, sometimes with bubbles in the radiator and a sweet smell at the exhaust. Pressure test the system before replacing the pump.
Pumps are compact and do not deteriorate in storage, which makes them sensible spares for mining fleets where downtime is expensive. Keep two on the shelf together with gaskets and thermostat housing seals so a repair is completed in one visit.
On a WP13 the fan is usually driven through a viscous hub, and a hub that no longer locks up produces overheating that looks exactly like a failing pump. Before replacing the pump, check that the fan spins freely when cold and locks when hot, and confirm the belt is not slipping under load.
Clean the radiator core externally as well. Mining and construction engines pack the fins with dust, and a core that is 30 percent blocked raises coolant temperature at full load even when the pump is delivering its rated flow. Cleaning the core costs nothing and often removes the symptom entirely.
Browse the Weichai pump category, and pair the pump with the WP13 cylinder head 612700040030 or the WP13 cylinder liner 612700010010.
Yes, the gasket and O-ring are supplied.
Only to reach a workshop. Coolant loss leads to overheating and head damage.
The pump comes with the hub. Tell us if you need the complete assembly.
Remove the belt and spin the pump by hand. Roughness or play confirms the bearing.
EPID supplies diesel engine parts for Weichai, Baudouin, Yuchai, Caterpillar, Sinotruk, FAW Xichai and Cummins engines. Every order is checked against the original part number before packing, and our team can identify a part from a photo of the engine plate. Ask for a quotation with your model and quantity and we will reply within one working day.
