Cylinder Liner Mercedes-Benz OEM Supplier: Sourcing Guide
Procurement teams sourcing cylinder liner Mercedes-Benz OEM supplier parts need more than a price list. The real risk is not quote variance; it is mismatch on bore, fit, material, traceability, or repeatability after the first lot. Driventus manufactures cylinder liners for aftermarket, OEM, and Tier-1 supply chains from Taizhou, Zhejiang, with export experience in more than 60 countries. We operate under IATF 16949:2016 and ISO 9001:2015 quality systems and supply parts for fitment reference only. Driventus is an independent aftermarket manufacturer; brand names are referenced for fitment only. For buyers in the EU, UK, US, Canada, Australia, and Brazil, the decision is simple: verify OE cross-reference, confirm the block interface, then test whether the supplier can repeat the same result on the next shipment. If you need a direct sourcing path, start with the catalog, review the quality system, and ask for sample and production terms.
Start with the failure points, not the price
If a liner quote looks attractive but the part fails on fit, the savings disappear immediately. The first check is whether the application uses a dry liner, wet liner, or press-fit sleeve, because the wrong type creates avoidable installation and sealing problems. Then confirm the engine code and the drawing data that actually governs the part: bore diameter, outer diameter, overall length, flange thickness, and skirt relief.
What to lock down first
- OE 06A107065 or another OE cross-reference when the programme specifies one
- Cylinder bore size and roundness target, typically controlled within the drawing tolerance band and checked at 20°C
- Wall thickness and material grade, with hardness commonly specified in the 220–260 HB range for cast-iron programmes unless the drawing says otherwise
- Surface finish on the working bore, often Ra 0.20–0.40 μm after finish honing depending on ring package
- Pack quantity, labelling, traceability, and corrosion-protection method for export transit
- Interference fit target, commonly verified in the 0.02–0.08 mm range on applicable press-fit designs, subject to engine design
Driventus can support drawing review, sample confirmation, and production matching for repeat orders. For broader engine programmes, see our catalog and the related engine components range.
Spec check: the dimensions that decide the order
A cylinder liner works only when the spec is controlled end to end. Buyers usually focus on price first, but the technical file determines whether the part survives inspection, installation, and service life. For cast-iron liners, the priority is consistent hardness, wear resistance, and a predictable interference fit. Depending on the application, buyers may also request anti-corrosion handling, phosphate coating, or finish honing to the required plateau profile.
| Item | What to confirm | Why it matters |
|---|---|---|
| Material | Alloy cast iron or specified equivalent, with foundry melt records | Wear life and thermal stability |
| Bore tolerance | Drawing-based limit, often held to ±0.01–0.03 mm on precision applications | Ring seal and oil control |
| OD tolerance | Match to block interference fit, commonly checked against a master gauge or CMM | Press-fit retention |
| Length and flange | Within drawing limits, usually checked to ±0.02–0.05 mm where specified | Deck height and sealing |
| Surface finish | Honed bore finish per application, often Ra 0.20–0.40 μm | Break-in and friction |
| Concentricity | Usually controlled to a few hundredths of a millimetre depending on the drawing | Uniform wall loading |
| Hardness | Typically verified by batch, with acceptance set by the technical file | Wear resistance and machining stability |
