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The Mahle piston ring set identified by manufacturer part number 9200MS-12 is designed to seal combustion pressure, control oil, and transfer heat when matched to the exact piston grooves and finished bore. Final compatibility depends on the complete engine combination and measured dimensions, not the product title alone.
Key Features
- 9200MS-12 uses a 1.2/1.2/2.5mm ring configuration for sport compact performance builds.
- Drop-in fit at 92.00mm standard bore, no additional machining required.
- Molybdenum-faced top ring resists wear under high cylinder pressure.
- Steel oil control rail rings support consistent oil control at high RPM.
- Full ring set for one engine at 92.00mm bore.
- Stagger ring gaps around the piston per the engine builder's specification.
Fitment
| Fitment Status | Universal only by exact ring and piston dimensions |
|---|---|
| Required Verification | Bore, ring-groove dimensions, ring thickness, cylinder count, material, and intended use |
Specifications
| Brand | Mahle |
|---|---|
| Manufacturer Part Number | 9200MS-12 |
| Product Type | Piston Ring Set |
| Fitment Type | Universal |
| Condition | New |
| Manufacturer Guide Match | Exact part number verified |
| Ring Preparation | Drop in |
What's Included
One new Mahle piston ring set in the exact configuration stated in the specifications. Pistons and installation tools are not included unless explicitly listed.
About Mahle
Mahle develops pistons, piston rings, bearings, filtration, thermal-management, and engine components for original-equipment, replacement, and motorsport applications.
Related Mahle Products
- Shop all Mahle products
- Mahle MS 87.00 mm1.2 1.2 2.8 mm Drop In Rings
- Mahle MS 92.50 mm1.2 1.2 2.8 mm Drop In Rings
- Mahle MS 85.50 mm1.2 1.2 2.8 mm Drop In Rings
Frequently Asked Questions
How do I confirm Mahle 9200MS-12 is the correct ring set?
Match the finished bore, piston groove dimensions, top, second, and oil-ring thicknesses, cylinder count, and intended engine use. A matching bore alone is not enough.
Do these piston rings require filing?
The listed preparation is Drop in. Measure every ring in its assigned cylinder and follow the current MAHLE instructions for the bore, fuel, boost, heat load, and intended use.
Can piston rings be installed without measuring the cylinders?
No. A qualified machine shop should measure bore diameter, taper, out-of-round, surface finish, piston groove clearance, ring end gap, and oil-ring fit before assembly.
Installation Instructions
Use the current Mahle instructions for part number 9200MS-12 and the engine builder's measured assembly specifications. A qualified machine shop must verify bore finish, clearances, ring gaps, pin fit, lock installation, orientation, balance, deck height, valve clearance, compression ratio, lubrication, and break-in before operation.
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