Dual Mass Flywheel Genesis Supplier: Sourcing Guide
Choosing a dual mass flywheel Genesis supplier takes more than finding a catalogue line that appears to match. Buyers need clear fitment evidence: crank bolt PCD, pilot diameter, clutch-hub spline count, ring gear tooth count, starter engagement position, clutch cover bolt pattern, working axial free play, rotational free angle, balance grade, and packaging data for inbound inspection and export freight planning. Driventus is an independent aftermarket manufacturer; Genesis and other vehicle brand names are used for fitment identification only. We support B2B importers, distributors, repair-chain networks, and service-part programmes that need repeatable dimensional control, production lot traceability, and export documentation for the EU, UK, US, Canada, Australia, and Brazil. For procurement teams, the real test is not whether a listing looks compatible. It is whether the supplier can hold critical tolerances, document process control, and support sample approval, audit review, and repeat replenishment across multiple batches.
What Buyers Need To Confirm First
A sourcing request should begin with application engineering data, not a sales description. For a dual mass flywheel used in Genesis fitment, we ask buyers to confirm the engine code, transmission family, clutch diameter, clutch cover bolt pattern, crankshaft bolt quantity and PCD, pilot register diameter, starter ring gear tooth count, overall height, installed depth, and any OE or aftermarket cross-reference already approved by the customer engineering team. If the vehicle sits within a mixed fleet or regional catalogue, model year alone is not enough; mid-cycle transmission or clutch revisions can change fitment.
That detail has a direct operational benefit: fewer rejects at goods receipt and fewer field returns after pilot release. Buyers should also clarify whether the flywheel is supplied as a bare DMF, as part of a clutch conversion kit, or in a repair kit with fasteners. Many DMF designs use torque-to-yield or coated bolts, and the wrong reused fasteners can affect clamp load and complicate warranty analysis.
To narrow the shortlist, review our catalog. If the programme also includes adjacent powertrain items, the engine components range may support related sourcing work. The same level of confirmation applies whether the order is for a repair-chain network, a distributor stocking programme, or an OEM service contract.
A clean RFQ should include:
- Vehicle application, engine code, and transmission code
- OE cross-reference or approved sample reference
- Clutch diameter and clutch cover bolt pattern
- Ring gear tooth count and starter position requirement
- Crank bolt pattern, pilot diameter, and overall height
- Target annual volume, call-off schedule, and forecast horizon
- Packaging requirement, barcode type, carton label format, and pallet specification
- Required PPAP, ISIR, inspection report, material certificate, or sample approval file
Specification Checklist For Comparison
The best supplier comparison is based on measurable evidence. A dual mass flywheel is a functional damping component, so geometry, inertia, rotational behaviour, and durability records matter more than weight and outside diameter alone. The table below gives procurement teams a practical minimum for first-round screening.
| Buyer check | Minimum evidence | Why it matters |
|---|---|---|
| Fitment match | Engine/transmission code, tooth count, crank PCD, pilot diameter, bolt pattern, and cross-reference data | Prevents starter, clutch, and crank-interface mismatch |
| Critical dimensions | Dimensional report covering OD, overall height, friction face position, pilot register, bolt holes, and dowel locations | Reduces assembly variation and installation claims |
| Runout and concentricity | Recorded axial and radial runout on defined datums, typically controlled on the friction face and ring gear register | Helps control clutch judder, NVH, and starter engagement issues |
| Balance | Dynamic balance record, commonly specified to ISO 21940 balance-grade principles or buyer drawing requirement | Limits vibration and bearing load at operating speed |
| Rotational behaviour | Free angle, secondary mass rock, stop angle, and torsional spring/damping curve where test equipment is available | Confirms the DMF damping function, not only the physical fit |
| Friction surface | Surface roughness and hardness check where specified by drawing or sample standard | Supports clutch bedding, wear behaviour, and release consistency |
| Ring gear | Tooth count, tooth profile condition, induction hardening or hardness record where applicable | Prevents starter noise, premature tooth wear, and no-start complaints |
| Material and process control | Material certificate, heat-treatment record, and controlled machining route | Supports fatigue resistance and batch repeatability |
| Compliance | REACH (EC) No 1907/2006 statement and other market-specific declarations where required | Helps with EU import and customer compliance files |
| Traceability | Lot number, production date, operator/line record, inspection status, and revision control | Supports containment, warranty follow-up, and controlled replenishment |
| Source type | Typical risk | Procurement value |
|---|---|---|
| Direct factory | Requires more upfront validation and clearer technical data | Better revision control, traceability, process audit access, and batch consistency |
| Trader | Faster first quotation and wider spot-buy coverage | Useful for urgent demand, but documentation and batch consistency may vary |
| OEM-aligned manufacturing partner | More formal document control and change discipline | Better fit for long-term contracts, warranty-sensitive programmes, and approved vendor lists |
