MITSUBISHI 4D56 Piston MD103318
MITSUBISHI 4D56 Piston MD103318 is supplied against OEM reference MD103318 for MITSUBISHI 4D56.
Piston for MITSUBISHI 4D56
MITSUBISHI 4D56 Piston MD103318 is supplied against OEM reference MD103318 for MITSUBISHI 4D56. The function of the piston as the core component of the engine is used to withstand the gas pressure, the connecting rod drives the crankshaft to rotate through the piston pin, and the top of the piston is also a part of the combustion chamber. Our pistons have sufficient strength, rigidity, heat resistance, wear resistance and long service life. The minimum order is one piece, packed neutral or under your own brand, with ISO9001 certification.
- OEM MD103318
- Category: Engine System Parts
- ISO9001
- MOQ 1 piece
What You Get With This Reference
- Listed against OEM reference MD103318 so the part is confirmed before it is packed
- Single piece minimum order lets a workshop replace one damaged piston
- Same source for pistons, rings, rods and bearings keeps a rebuild on one shipment
Why Buyers Order It
- Oversize and standard pistons are easy to confuse when a supplier lists only the vehicle model
- A rebuild stalls when pistons arrive without matching pin sizes
- Buying a full set through a dealer network ties up cash a small workshop does not have
- Finding this reference for MITSUBISHI 4D56 locally often means a long wait or a used part of unknown history.
Where This Part Is Used and Who Buys It
Application Scenarios
- Rebuilding a diesel pickup engine after ring failure
- Replacing one damaged piston after a cooling failure
- Stocking common pickup and light truck pistons for a machine shop
Who It Is For
- Fleet workshops maintaining MITSUBISHI 4D56
- Machine shops rebuilding diesel engines locally
- Aftermarket parts distributors building a pickup and light truck range
- Traders consolidating mixed parts orders from Yiwu
Technical Data From the Product Record
| OEM No. | MD103318 |
|---|---|
| Size | 91.1MM |
| Engine Model | 4D56 |
| Matched Model | MITSUBISHI 4D56 |
| Place of Origin | China |
| MOQ | 1 Pc |
| Shelf Life | 1 Year |
| Certification | ISO9001 |
| Packing | Neutral or custom packaging |
Only values recorded against this reference are listed. Send the number from your old part if you need a dimension that is not shown.
What the Part Is Built To Do
- Crown profile matched to the listed engine family
- Ring grooves machined for the original ring pack
- Pin bore sized to the OEM gudgeon pin
- Packed individually to protect the skirt finish
- Engine Model: 4D56
- Size: 91.1MM
Symptoms That Point Here
- Blue smoke under load and rising oil consumption
- Piston slap audible on a cold engine
- Low compression across several cylinders
- Scoring visible on the skirt when the head comes off
How It Compares With the Alternatives
Compared with a used piston from a salvage engine
A salvage piston carries unknown ring groove wear and crown erosion, and it cannot be measured back to specification.
Compared with a complete short block
A short block solves everything at once but costs far more than replacing the damaged pistons in a sound block.
Fitting and Service Notes
- Measure the bore before ordering and confirm whether you need standard or an oversize.
- Check ring end gap in the bore before assembly.
- Fit the piston with the crown arrow or valve pockets facing as the manual shows.
- Use new circlips and never re-use a clip that has been opened.
Guides for This Kind of Job
How To Read and Verify an OEM Number Before You Order
Most wrong-part shipments start with an order placed on a vehicle name. This guide shows where the number is, how to read it and what to send a supplier.
Read →Product GuideBuying a Replacement Diesel Cylinder Head Without Guesswork
What to measure, what to ask and what to replace at the same time when a light truck or pickup head has to be changed.
Read →Maintenance GuideWhen To Change Fuel and Oil Filters in Hard Service
Service book intervals assume clean fuel and light duty. This guide explains how to set a realistic interval for pickups, light trucks and delivery motorcycles.
Read → IndustryTruck and Pickup Fleet Workshops
A fleet workshop is measured on how quickly a vehicle returns to work, so parts availability matters more than list price.
Read →Questions About MITSUBISHI 4D56 Piston MD103318
Which vehicles does MD103318 fit?
Is the piston supplied with rings and pin?
Do you supply oversize pistons?
Can I order a single piston?
What is the minimum order and how is it packed?
Need This Part Confirmed For Your Vehicle
Send the OEM number, the engine code or a photograph of the old part. The reference and the matched models are confirmed in writing before you pay anything.