31207-72183 Cylinder Liner Sleeve for Mitsubishi 8DC8 Engine

31207-72183 Cylinder Liner for Mitsubishi 8DC8 Engine

The 31207-72183 cylinder liner is used for Mitsubishi 8DC8 diesel engine overhaul applications. It is also searched as an 8DC8 cylinder sleeve, engine liner or cylinder block liner for Mitsubishi heavy-duty diesel engine repair.

This page focuses on 31207-72183 as the main part number. Before ordering, the removed liner should be checked by old part number, engine model, bore size, outer diameter, total length, flange structure, liner finish and engine serial number.

Why 31207-72183 Should Be Checked by Old Liner

Mitsubishi 8DC8 cylinder liners are often searched by engine model first, but engine model alone is not enough for final confirmation. Different 8DC8 catalog references may appear in supplier listings, and some pages use different reference numbers for similar 8DC8 liner groups.

For this reason, 31207-72183 should be verified by the removed liner and engine information. The safest checking points include bore size, outer diameter, total length, top flange diameter, flange depth, finish type and cylinder block condition.

8DC8 Engine Overhaul Use

The Mitsubishi 8DC8 engine is an 8-cylinder diesel engine platform used in heavy-duty applications. During overhaul, cylinder liners may be replaced when the cylinder wall is worn, scratched, pitted, corroded or outside the service limit.

For an 8-cylinder engine rebuild, liners are usually checked as a full set to keep compression, sealing and combustion conditions consistent. Related parts such as pistons, piston rings, bearings, gaskets and coolant sealing areas should be inspected at the same time.

Catalog Reference Points

• Main part number: 31207-72183.

• Common engine reference: Mitsubishi 8DC8, 8DC8-1 and 8DC8-2.

• Common product names: cylinder liner, cylinder sleeve, engine liner and cylinder block liner.

• Catalog bore reference: 135 mm.

• Catalog outer diameter reference: 154 mm.

• Catalog length reference is commonly around 229.3 mm, but the removed liner should be measured before ordering.

Reference Number Notes

The main signal of this page should remain 31207-72183. Other numbers such as 31207-63202, 31207-62200, ME062379, ME062597, ME062598 and ME061036 may appear in public 8DC8 cylinder liner references, but they should not be used as automatic interchange numbers without confirmation.

If a buyer provides one of these related references, the old liner photo, measured dimensions and engine plate should be checked before quotation. This keeps the page focused on 31207-72183 while still allowing practical catalog verification.

Common Reasons for Cylinder Liner Replacement

• Cylinder wall wear after long engine running hours.

• Low compression caused by worn liner surface, piston rings or piston damage.

• Oil consumption or blue smoke caused by poor sealing between the liner and piston rings.

• Overheating damage that affects liner shape, finish or sealing condition.

• Coolant leakage caused by damaged sealing area, O-ring area or cylinder block corrosion.

• Full engine rebuild where liners are replaced together with pistons, rings and gaskets.

Troubleshooting Before Replacement

Before replacing the 31207-72183 cylinder liner, inspect the failure cause. Liner damage may be related to overheating, poor lubrication, coolant cavitation, dust entry, piston ring wear, incorrect assembly or cylinder block damage.

• Confirm whether the old liner number matches 31207-72183.

• Check the Mitsubishi 8DC8 engine model and engine serial number.

• Measure bore size, outer diameter, total length and flange area.

• Inspect the cylinder block seat, liner protrusion area and coolant sealing area.

• Check piston, piston rings, coolant passages and lubrication condition before final assembly.

Installation and Maintenance Notes

• Clean the cylinder block liner seat before installation.

• Check liner seating surface, protrusion and flange contact area according to the engine repair procedure.

• Do not mix liners with different dimensions or finish types in the same engine rebuild.

• Inspect pistons, piston rings, bearings and gasket surfaces before reassembly.

• Use correct coolant and maintain the cooling system to reduce cavitation and overheating risk.

• After assembly, check coolant leakage, oil condition, compression and engine operating temperature.

FAQ

Q: What is 31207-72183?

31207-72183 is a cylinder liner or cylinder sleeve reference commonly listed for Mitsubishi 8DC8 diesel engine overhaul applications.

Q: Is 31207-72183 used for Mitsubishi 8DC8?

Yes. 31207-72183 is commonly associated with Mitsubishi 8DC8 cylinder liner references. Final fitment should still be verified by the old liner, engine model and measured dimensions.

Q: Why do some catalogs show other 8DC8 liner numbers?

Different catalogs may list related 8DC8 references such as 31207-63202, 31207-62200, ME062379 or ME061036. These should be checked by old liner and dimensions before being treated as replacement references.

Q: Should 8DC8 cylinder liners be ordered as one piece or a full set?

For an 8-cylinder engine overhaul, cylinder liners are often replaced as a full set to keep compression and sealing conditions consistent. Single-piece replacement should be confirmed by repair condition and stock policy.

Q: What should be checked before ordering?

Check the old liner number, engine model, engine serial number, bore size, outer diameter, total length, flange structure, liner finish and cylinder block condition. Clear photos and measurements are recommended.