Powertrain

Piston Set STD — Mahindra MM540

Standard-size piston set for the Mahindra MM540 Willys Jeep — four pistons supplied with gudgeon pins and circlips.

FitsMahindra MM540 · standard size · set of 4
CategoryPowertrain
Details4.90 diesel · Standard — oversizes quoted on request · Four pistons with gudgeon pins and circlips
Also searched asMM540 pistons standard size, Willys Jeep diesel piston kit, pistones estandar, mahindra piston
ConditionExport grade
AvailabilityExport — quote within 24 hours
Supplied byNonu Ventures

Price, availability and shipping for this part are handled by Nonu Ventures, the exporter. The button opens this same part on their site.

This part is also listed for the CJ340: view the CJ340 page →

Measure the bores before ordering standard

Standard pistons only suit an engine whose bores are still at their original diameter — a fresh block, or one that has been sleeved back to standard. An engine that has already been rebored needs the matching oversize.

Have the block measured for wear and taper first. If it has been bored before, the oversize is usually stamped on the piston crown or the block; tell us what it reads and we will quote that size instead.

What goes with a piston set

Rings, small-end bushes, big-end and main bearings and a full gasket set are the usual companions. We quote them alongside so the engine goes together in one go rather than waiting on one missing line.

Check ring gap in each bore before assembly and fit the pistons the right way round — the crown markings matter on a diesel, where valve pockets and the combustion bowl are not symmetrical.

Questions about this part

What does the Piston Set STD fit?

It is listed for the Mahindra MM540. Quote your chassis number when you enquire so fitment can be checked.

How do I order the Piston Set STD?

Use the “Contact Nonu Ventures” button. Nonu Ventures is the exporter: send them the part number, the quantity and your destination and they quote within 24 hours, shipping worldwide.

Is it a genuine part?

Nonu Ventures lists genuine OEM or export-grade components, cross-referenced to OEM catalogues and fitment-checked before dispatch.

Does the Piston Set STD also fit the CJ340?

Yes — Nonu Ventures lists it for the CJ340 as well. There is a separate CJ340 page for this part.

More Powertrain parts

Mahindra MM540 spare parts · All spare parts · Catalogue data from Nonu Ventures, checked 2026-10-20.