Model: 4M10G110 / 4M10G70 / 4M10G88
Part Number: 1000429385
Brands: Baudouin
Engine Model: 4M10G70, 4M10G88, 4M10G110
Engine Type: Marine and industrial diesel
Scope of application: marine propulsion, marine auxiliary, generator sets, industrial power units
Part 1000429385 is the coolant pump shared by the Baudouin 4M10G70, 4M10G88 and 4M10G110 engines. On a marine installation it circulates the freshwater coolant through the block, head and oil cooler and back through the heat exchanger, where raw water removes the heat.
Because the engine runs at constant load, the pump works continuously at a single speed, which is actually harder on the seal and bearing than varying speed. A pump that is beginning to fail shows up first as a slight rise in coolant temperature at full load, not as a dramatic overheat.
The pump fits all three 4M10G ratings. Marine and industrial variants can use a different pulley or inlet arrangement even when the body casting is the same, so confirm the engine plate and the old pump number before ordering.
The pump uses a cast iron housing, a cast impeller, a sealed bearing cartridge lubricated for life and a mechanical face seal. Each unit is bench tested rather than only inspected.
Each pump ships with a new gasket and O-ring, hub protected so the seal survives transit.
A collapsed bearing lets the fan or pulley contact surrounding parts, turning a modest repair into an expensive one.
On a marine engine the coolant pump is only half the cooling system. The raw water pump, sea strainer and heat exchanger must also be in good condition. A blocked sea strainer or a scaled heat exchanger raises coolant temperature and makes the freshwater pump work harder, and the pump is often replaced when the real fault is in the raw water circuit.
Most premature pump failures trace back to belt alignment. A worn tensioner or the wrong pulley offset side-loads the bearing, and the seal starts weeping within a few hundred hours. Check the belt path with a straight edge 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.
Keep the coolant mixture in specification, replace the thermostat and pressure cap when due, and clean the heat exchanger at the recommended interval. On marine engines, hours-based maintenance matters more than calendar-based maintenance.
Pumps are compact and do not deteriorate in storage. For a fleet, keep two on the shelf together with gaskets and thermostat housing seals so a repair is completed in one visit.
A marine engine has two cooling circuits. The fresh water circuit, driven by this pump, circulates treated coolant through the engine. The raw water circuit, driven by a separate sea water pump, draws water from outside and passes it through the heat exchanger. Confusing the two is a common diagnostic error.
If the engine overheats, check both circuits. A blocked sea strainer, a worn raw water impeller or a scaled heat exchanger all raise temperature while this pump is working perfectly. Replacing the freshwater pump without checking the raw water side is one of the most common wasted repairs on marine engines.
Raw water pump impellers are a consumable and should be replaced at the interval recommended for the installation, or immediately if the engine has run dry. A missing impeller vane travels downstream and blocks the heat exchanger, which then looks like a pump failure on the freshwater side.
Yes, the same pump covers 4M10G70, 4M10G88 and 4M10G110.
Yes, the gasket and O-ring are supplied.
Only to reach a workshop. Coolant loss leads to overheating.
The pump comes with the hub. Tell us if you need the complete assembly.
Browse the Baudouin pump category, and pair the pump with the 4M10G oil pump 1004810498 or the 4M10G cylinder head range.
Baudouin Water Pump (1000429385). Cooling depends on this pump moving volume, not pressure. The seal and bearing are the parts that fail, and both are affected by belt tension.
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 1000 come from the newer numeric series used for assemblies and later-production parts. This series replaced several earlier numbers, so a cross-reference check is worthwhile.
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. Inspection reports can be provided for castings and crankshafts on request, covering the measurements taken before packing.
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: 4M10G70, 4M10G88, 4M10G110, 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 cast impeller, a sealed bearing cartridge lubricated for life and a mechanical face seal. Each unit is bench tested rather than only inspected.
Each pump ships with a new gasket and O-ring, hub protected so the seal survives transit.
A collapsed bearing lets the fan or pulley contact surrounding parts, turning a modest repair into an expensive one.
On a marine engine the coolant pump is only half the cooling system. The raw water pump, sea strainer and heat exchanger must also be in good condition. A blocked sea strainer or a scaled heat exchanger raises coolant temperature and makes the freshwater pump work harder, and the pump is often replaced when the real fault is in the raw water circuit.
Most premature pump failures trace back to belt alignment. A worn tensioner or the wrong pulley offset side-loads the bearing, and the seal starts weeping within a few hundred hours. Check the belt path with a straight edge 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.
Keep the coolant mixture in specification, replace the thermostat and pressure cap when due, and clean the heat exchanger at the recommended interval. On marine engines, hours-based maintenance matters more than calendar-based maintenance.
Pumps are compact and do not deteriorate in storage. For a fleet, keep two on the shelf together with gaskets and thermostat housing seals so a repair is completed in one visit.
A marine engine has two cooling circuits. The fresh water circuit, driven by this pump, circulates treated coolant through the engine. The raw water circuit, driven by a separate sea water pump, draws water from outside and passes it through the heat exchanger. Confusing the two is a common diagnostic error.
If the engine overheats, check both circuits. A blocked sea strainer, a worn raw water impeller or a scaled heat exchanger all raise temperature while this pump is working perfectly. Replacing the freshwater pump without checking the raw water side is one of the most common wasted repairs on marine engines.
Raw water pump impellers are a consumable and should be replaced at the interval recommended for the installation, or immediately if the engine has run dry. A missing impeller vane travels downstream and blocks the heat exchanger, which then looks like a pump failure on the freshwater side.
Browse the Baudouin pump category, and pair the pump with the 4M10G oil pump 1004810498 or the 4M10G cylinder head range.
Yes, the same pump covers 4M10G70, 4M10G88 and 4M10G110.
Yes, the gasket and O-ring are supplied.
Only to reach a workshop. Coolant loss leads to overheating.
The pump comes with the hub. Tell us if you need the complete assembly.
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.
