Cylinder Liner Peugeot Manufacturer China: B2B Sourcing Guide
Buyers sourcing Peugeot cylinder liners from China usually have to balance three priorities at the same time: accurate bore geometry, export-ready quality records, and dependable repeat supply. For aftermarket distributors, OEM-channel suppliers, engine rebuilders, and repair-chain programmes, the decision is seldom driven by unit price alone. The real question is whether the liner will maintain roundness and cylindricity after installation, whether cast iron grade, hardness, and machining allowance are properly documented, whether the same drawing revision can be repeated across batches, and whether the packing and paperwork are suitable for import, storage, and workshop use. Driventus is an independent aftermarket manufacturer; Peugeot and other brand names are referenced for fitment identification only. This guide explains how we manufacture and supply cylinder liners for Peugeot applications, which specifications buyers should verify during evaluation, and how our commercial process works for export customers in the EU, UK, US, Canada, Australia, Brazil, and other B2B markets.
Why buyers source Peugeot cylinder liners from China
For procurement teams, a cylinder liner Peugeot manufacturer China search often begins with three practical concerns: fitment risk, cost control, and supply continuity. A cylinder liner is a precision engine component, so the questions quickly become technical. Can the supplier match the required bore size, flange geometry, wall thickness, coolant-seal groove, deck protrusion, and surface finish? Just as important, can those characteristics be repeated batch after batch without drifting away from the approved specification?
China remains a practical sourcing base for Peugeot-fit cylinder liners because foundry supply, CNC turning, boring, honing, inspection, anti-rust packing, and export coordination can be managed within one supply chain. That matters for aftermarket distributors carrying many SKUs, repair networks that rely on steady replenishment, and buyers replacing discontinued or difficult-to-source legacy engine parts.
For B2B buyers, the main sourcing advantages are:
- Stable machining capacity for series programmes, seasonal stock builds, and scheduled replenishment orders
- Access to casting, stress relief where specified, CNC turning, boring, honing, dimensional inspection, and packing coordination
- Flexible support for catalogue parts, drawing-controlled parts, and sample-based development
- Export documentation support for distributors, importers, and private-label programmes
- Faster technical quotation when drawings, samples, engine codes, piston data, or OE cross-references are provided
- Consolidation options when buyers source related engine components in the same shipment
The strongest projects are handled as technical supply programmes, not simple price inquiries. Clear drawings, reference samples, target markets, annual volume, acceptance criteria, and packaging requirements allow the manufacturer to quote the right material route, inspection level, and lead time. We support catalogue supply as well as special dimensions for legacy engines. Start with our catalog or review the broader engine components range if you are building a mixed order.
Material and machining control
A cylinder liner is only reliable when its material structure and machining are controlled from casting or tube blank through final inspection. For Peugeot engine programmes, we normally build to the buyer’s drawing or sample, then confirm critical dimensions, machining allowances, and inspection points before mass production. This helps avoid a common sourcing failure: a liner that looks correct at first glance but creates problems during block pressing, finish boring, honing, sealing, or engine operation.
Material choice affects wear resistance, thermal stability, machinability, and service life. Depending on the application, the agreed specification may cover grey cast iron or alloy cast iron grade, carbon and silicon range, hardness range, heat-treatment or stress-relief condition, and microstructure expectations such as graphite form and carbide control. Wet liners need particular attention around corrosion resistance, sealing grooves, flange seating, and lower sealing diameter control because the part works directly with coolant and elastomer seals. Dry liners usually place more emphasis on outer diameter control, interference fit, wall thickness uniformity, and bore stability after installation.
Typical control points include:
- Material grade, chemical composition, microstructure, and hardness after any specified heat treatment
- Outer diameter and inner diameter tolerance bands before and after finishing
- Roundness, cylindricity, taper, and straightness along the working length
- Face parallelism, chamfer condition, flange thickness, and flange-seat flatness where applicable
- Honing condition, crosshatch angle, plateau finish, or semi-finished bore allowance for final machining
- Wall thickness consistency to reduce distortion risk during installation and service
- Visual checks for casting defects, burrs, cracks, porosity, bruising, corrosion, and handling marks
Process focus
We build the part to the agreed specification, then verify whether the liner is dry or wet type, what installation interference is required, and which finish is needed for the final bore condition. If the buyer will finish-hone locally, we can discuss semi-finished bore allowance, typically defined as a controlled stock allowance on the ID rather than an open-ended rough bore. If the part is supplied ready for installation, surface finish, bore cleanliness, anti-rust oil, and edge protection become more important. This process discipline reduces mismatch at the engine-builder stage and helps repeat batches perform like the approved sample.
Typical specification checks
The table below outlines the specification items buyers should confirm before placing a purchase order. Exact values depend on engine family, displacement, block design, repair strategy, and whether the liner is supplied as a finished or semi-finished component. When comparing suppliers, check not only the stated numbers but also the measurement method behind them.
| Spec item | What to confirm | Why it matters |
|---|---|---|
| Liner type | Dry or wet liner, with installation method and block condition | Affects installation force, heat transfer, coolant sealing, and block retention |
| Base material | Cast iron grade, alloy specification, hardness range, or buyer-approved equivalent | Influences wear resistance, thermal stability, machinability, and service life |
| Bore size | Nominal ID, machining allowance, finished-bore status, and tolerance | Controls piston clearance, compression sealing, oil control, and final honing strategy |
| Outer diameter | Nominal OD, tolerance, and interference-fit target where applicable | Determines press fit, block retention, and distortion risk after installation |
| Height / flange | Overall length, flange thickness, seat geometry, and top protrusion target | Impacts deck height, head gasket interface, combustion sealing, and liner seating |
| Seal areas | Groove width, groove depth, lower sealing diameter, and surface finish for wet liners | Controls coolant sealing and reduces risk of leakage or O-ring damage |
| Wall thickness | Minimum and nominal thickness at controlled points | Helps maintain strength, heat transfer, and dimensional stability |
| Surface finish | Honed, plateau-honed, rough-bored, or semi-finished bore, with Ra/Rz target if specified | Affects ring seating, oil retention, break-in behavior, and local finishing work |
| Hardness | HB or HRC target per drawing or agreed range | Helps verify material consistency and wear-performance expectations across batches |
| Chamfers / radii | Top, bottom, oil passage, seal groove, and installation-edge details | Reduces assembly damage and supports correct seating during installation |
| Cleaning | Rust prevention, bore cleanliness, chip removal, and debris control | Prevents storage corrosion and reduces risk during engine assembly |
| Packaging | Individual wrap, set packing, anti-rust protection, carton grade, and pallet format | Reduces transit damage, corrosion risk, and warehouse handling problems |
