Model: 6M
Part Number: 1009552514
Brands: Baudouin
Engine Model: Baudouin 6M series
Engine Type: Marine and industrial diesel
Scope of application: marine propulsion, marine auxiliary, generator sets
Baudouin 6M engines are six-cylinder marine units used for propulsion and auxiliary duty. Part 1009552514 is a cylinder liner kit for this family, supplied with the O-rings needed to seal the liner against the block.
The liner is the surface the piston rings run against and the path by which combustion heat reaches the coolant. Its bore finish, roundness and protrusion above the deck decide how well the engine seals, how much oil it uses and how long the rings last.
The kit contains the liner and its O-ring set. Some workshops also order the matching piston and ring set at the same time, which is the practical approach because liner, piston and ring form one system and mixing brands is the most common cause of oil consumption after a rebuild.
Each liner ships oiled and wrapped. Keep it in its packaging until the block is clean and ready, because a bare bore corrodes quickly in a humid engine room.
Protrusion is the small height by which the liner stands above the deck. It lets the fire ring crush onto the liner top and seal combustion pressure. Too low and gas escapes into the coolant; uneven across cylinders and the gasket is clamped unevenly. Never compensate by over-torquing head bolts.
Wet liners vibrate against the coolant and can suffer cavitation pitting when coolant chemistry is neglected or air enters the circuit. Pitting eventually perforates the liner into the water jacket. Correct coolant mixture and a maintained heat exchanger are the defence.
Old liners often come out hard after years of coolant exposure. Use the correct puller rather than driving them out with a hammer, which distorts the block bore and ruins the seat for the new liner. Scrape the seat and O-ring grooves until bright metal after removal.
Order the liner, piston and ring as a matched set where possible. A liner honed for one ring type may not suit another brand. If you already have pistons, give us the part numbers and we will supply liners and rings that match.
Keep coolant chemistry in range, change oil at the hours-based interval and keep the air filter clean. Salt air and dust both accelerate wear, so inspect the intake system at every service on a working boat.
Liner, piston and ring form one system. A liner honed for one ring type may not suit another, and mixing brands is the most common cause of oil consumption immediately after a rebuild. If you already have pistons, give us the part number and the ring specification so we can confirm the liner finish matches.
For a complete set, order the liner, piston and ring kit together. The parts arrive matched, which removes the guesswork and shortens assembly time in a yard where every day alongside costs money.
On a six-cylinder engine, uneven compression between cylinders shows up as vibration that travels through the engine mounts and, on a boat, through the hull. Replacing liners one at a time is therefore less attractive than on a four-cylinder, and a full set is the usual choice at overhaul.
Measure every bore before ordering and record the figures. If one cylinder is significantly worse than the others, look for a cause such as a leaking injector or a blocked cooling passage before simply replacing parts.
Yes, the correct set for the block bore is supplied.
No. Pistons and rings are ordered separately to match the engine rating.
No. They are supplied plateau honed and ready to fit.
Cavitation from incorrect coolant or air in the system.
Browse the Baudouin cylinder liner category, and pair the liner with the 4M10G cylinder liner 1000156635 or the 4M10G cylinder block 1004708401.
Baudouin Cylinder Liner (1009552514). Bore roundness and surface finish are set by this component. A plateau-honed liner holds oil while the rings bed in, which is what controls oil use during the first hours of running.
Compare the O-ring groove position with the old liner. The groove must align with the coolant passages or the seal will leak regardless of how carefully it is fitted.
The part number is the reliable identifier here. Where the old number is unreadable, measure the component and compare it with the drawing rather than guessing from the engine model.
Measure protrusion on every cylinder with a dial gauge and record the figures. Uneven protrusion produces a head gasket failure that looks like a gasket fault.
Ordering note. Every shipment leaves with a packing list matched to the invoice, which matters when a rebuild is waiting on one seal and the whole pallet has to be cleared through customs.
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: Baudouin 6M series, 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 |
Each liner ships oiled and wrapped. Keep it in its packaging until the block is clean and ready, because a bare bore corrodes quickly in a humid engine room.
Protrusion is the small height by which the liner stands above the deck. It lets the fire ring crush onto the liner top and seal combustion pressure. Too low and gas escapes into the coolant; uneven across cylinders and the gasket is clamped unevenly. Never compensate by over-torquing head bolts.
Wet liners vibrate against the coolant and can suffer cavitation pitting when coolant chemistry is neglected or air enters the circuit. Pitting eventually perforates the liner into the water jacket. Correct coolant mixture and a maintained heat exchanger are the defence.
Old liners often come out hard after years of coolant exposure. Use the correct puller rather than driving them out with a hammer, which distorts the block bore and ruins the seat for the new liner. Scrape the seat and O-ring grooves until bright metal after removal.
Order the liner, piston and ring as a matched set where possible. A liner honed for one ring type may not suit another brand. If you already have pistons, give us the part numbers and we will supply liners and rings that match.
Keep coolant chemistry in range, change oil at the hours-based interval and keep the air filter clean. Salt air and dust both accelerate wear, so inspect the intake system at every service on a working boat.
Liner, piston and ring form one system. A liner honed for one ring type may not suit another, and mixing brands is the most common cause of oil consumption immediately after a rebuild. If you already have pistons, give us the part number and the ring specification so we can confirm the liner finish matches.
For a complete set, order the liner, piston and ring kit together. The parts arrive matched, which removes the guesswork and shortens assembly time in a yard where every day alongside costs money.
On a six-cylinder engine, uneven compression between cylinders shows up as vibration that travels through the engine mounts and, on a boat, through the hull. Replacing liners one at a time is therefore less attractive than on a four-cylinder, and a full set is the usual choice at overhaul.
Measure every bore before ordering and record the figures. If one cylinder is significantly worse than the others, look for a cause such as a leaking injector or a blocked cooling passage before simply replacing parts.
Browse the Baudouin cylinder liner category, and pair the liner with the 4M10G cylinder liner 1000156635 or the 4M10G cylinder block 1004708401.
Yes, the correct set for the block bore is supplied.
No. Pistons and rings are ordered separately to match the engine rating.
No. They are supplied plateau honed and ready to fit.
Cavitation from incorrect coolant or air in the system.
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.
