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dual mass flywheel · 2026-07-02

Dual Mass Flywheel Jeep Manufacturer in China

A Jeep dual mass flywheel is easy to quote badly and expensive to replace after failure. It sits between engine torque and clutch engagement, so small deviations in spring calibration, runout, grease volume, balance correction or friction-face hardness can become idle rattle, take-up judder, clutch slip and warranty claims. Driventus manufactures engine and powertrain components in Taizhou, Zhejiang for B2B customers in more than 60 export markets. For buyers searching for a dual mass flywheel Jeep manufacturer China option, the useful question is not only who can match a part number. It is who can confirm fitment, control machining and assembly, validate torsional damping, pack for export and document each batch without creating risk downstream.

Start With the Fitment File, Not the Part Photo

Jeep applications vary by engine family, clutch diameter, gearbox interface, production year and regional market. A worn sample or a model name is not enough for a dependable RFQ. The sourcing file should begin with application data and then move into dimensions, tolerance targets and packaging rules.

For aftermarket distribution, Driventus can review buyer-supplied OE part-number cross-references, such as OE 06A... or OE 11251... style references, together with the vehicle model, engine code, transmission code, production year, drive side and target market.

A workable fitment file normally includes:

Engine and transmission application list, including power output and market region
Buyer-supplied OE reference or interchange number for cross-checking
Clutch diameter, often around 228 mm, 240 mm or 250 mm depending on platform
Crankshaft bolt pattern, bolt grade, thread specification and tightening sequence if available
Ring gear tooth count, chamfer direction and starter engagement position
Primary and secondary mass dimensions, centre bore and mounting face offset
Pilot bearing or centre bore specification, including bore tolerance where available
Maximum free angle, rotational play limit and axial movement acceptance range
Label format, barcode type, carton gross weight limit and pallet requirement

Procurement teams can review related rotating and engine components in our catalog. Separate existing replacement references from new-development items early. Existing references are faster to quote because the specification baseline, fixture route and material set are already known. New references require sample measurement, drawing confirmation, prototype build, torsional travel checks, dynamic balance approval and validation before release to mass production.

Audit the Failure Points That Create Noise and Claims

A dual mass flywheel is a damping assembly, not a simple machined casting. The supplier audit should therefore focus on the operations that can create noise, vibration and harshness issues in service: turning, drilling, heat-treatment interfaces, spring and grease loading, assembly torque, dynamic balance and final inspection.

</tr></thead><tbody> </tbody></table>Ask to see the control plan, final inspection standard, gauge list, calibration labels and two recent batch records for the same or similar flywheel family. Practical checkpoints include face runout measured with a dial indicator, bolt-hole PCD verified by fixture or CMM, balance grade recorded after correction, and grease filling controlled by weight rather than visual judgement.

Driventus operates under an IATF 16949:2016 and ISO 9001:2015 aligned quality system. For regulated markets, buyers may also request material and substance declarations relevant to REACH (EC) No 1907/2006 where applicable. Driventus is an independent aftermarket manufacturer; brand names are referenced for fitment only.

Freeze These Specs Before Comparing Quotes

Most quote confusion starts before price is discussed. If three factories receive incomplete application notes, they may price three different products. One offer may exclude dynamic balancing. Another may assume weaker cartons, different grease, no inspection report or a looser balance grade.

For a dual mass flywheel Jeep manufacturer China RFQ, lock the following items before asking for final pricing:

Application: Jeep model range, engine, gearbox, torque rating and production years
Reference: buyer-provided OE cross-reference, interchange number or approved sample ID
Outer diameter and friction surface diameter, with measurement method stated
Ring gear tooth count, tooth profile confirmation and induction-hardened area if specified
Crankshaft bolt-hole PCD, hole diameter, countersink or counterbore detail and quantity
Clutch-side bolt pattern, dowel positions and pressure-plate seating height
Permitted face runout, commonly controlled in the 0.05-0.15 mm range depending on design
Axial clearance and rotational free play target, including maximum end-of-line limit
Dynamic balance requirement, such as G16 or tighter if required by the buyer standard
Friction surface hardness range, machining finish and oil or rust-prevention requirement
Packing: neutral, customer brand, barcode, carton ply, inner protection and pallet layout
Documentation: PPAP level if required, inspection report, material declaration and certificate copies

Price should follow the locked specification. Changing balance grade, packaging strength, label rules or documentation after quotation can move both unit cost and lead time.

For new references, Driventus can support custom manufacturing using buyer samples, drawings or validated specification sheets. Buyer-supplied samples should be new or low-mileage where possible. Worn springs, heat spots, fretting marks and damaged friction surfaces can distort reverse-engineering measurements.

Plan MOQ and Lead Time by Project Type

MOQ is not a single factory number. It depends on whether the reference already exists, whether private-label packaging is required, how components are purchased and whether new fixtures or validation work are needed.

Audit item	What to verify	Why it matters
Quality certification	IATF 16949:2016 and ISO 9001:2015 certificates, scope, expiry date and issuing body	Confirms an automotive process framework
Machining control	CNC capability, fixture control, gauge calibration and Cp/Cpk records for critical diameters	Reduces runout and bolt-hole variation
Assembly control	Spring set traceability, grease volume control, rivet or fastener torque and 100% rotation check	Supports damping consistency
Testing	Torsional angle, axial play, rotational play, face runout and balance checks	Reduces field noise and vibration claims
Traceability	Heat lot, batch code, inspection record, operator station and packaging lot	Supports claim investigation
Export compliance	Material declarations, country-of-origin marking and customer-specific documentation	Supports EU, UK, US and other import files

</tr></thead><tbody> </tbody></table>Small batches carry more fixture setup, inspection and packaging cost per unit. Mixed-container distributor orders can improve freight density when slow-moving SKUs are combined with faster references, but each SKU still needs its own MOQ and replenishment rule.

Confirm whether the price is EXW, FOB Ningbo/Shanghai or CIF. Also confirm whether cartons, labels, palletisation, test reports and certificates are included.

A realistic timeline is staged. RFQ review usually takes 3-7 working days after complete data. New-reference sample build may take about 30-60 days. Sample approval depends on the buyer test cycle. Mass production commonly takes 35-60 days after deposit and packaging approval, followed by vessel or air booking.

For EU, UK, US, Canada, Australia or Brazil imports, confirm HS code handling, carton markings, country-of-origin marking, packing-list format and any customer-specific compliance file before purchase order release. A China supplier can be cost-competitive, but landed cost still depends on defect rate, claim handling, freight density, packaging reliability and stock continuity.

Validation Scenario: Before the First Shipment Leaves China

The highest-risk moment is the first production batch. The part has passed quotation, but it has not yet proved itself inside the buyer's stock system or claim process. Acceptance criteria should be agreed before production release, not after a noisy field return.

Validation normally covers dimensional inspection, hardness checks, rotational free play, axial movement, torque capacity assessment and dynamic balance. For drawing-controlled projects, define sample size, measuring equipment and acceptance limits.

Typical first-article checks include:

100% visual inspection on submitted samples
Key dimensions checked against drawing or approved sample report
Face runout measurement
Ring gear tooth count and tooth condition
Crankshaft and clutch bolt-pattern verification
Grease leakage check
Spring travel feel and rotational play check
Axial clearance measurement
Dynamic balance record
Friction-face hardness and surface finish where required

Where the buyer has its own engineering standard, Driventus can review the test plan against available production and laboratory capability. For wider drivetrain programmes, validation should align with customer requirements and recognised quality management systems such as IATF 16949:2016 and ISO 9001:2015. Emissions standards such as ECE R-83 may be relevant to the vehicle platform context, but they do not replace component-level flywheel validation.

Buyer Warehouse Check

For first shipments, distributors should run sample-based incoming inspection against the approved drawing and golden sample. Open cartons from different pallet positions. Check labels and packaging first, then measure critical dimensions on the agreed sample quantity before stock release.

Useful incoming checks include packaging condition, label accuracy, visible machining defects, bolt-hole position, ring gear condition, friction-face corrosion, abnormal grease leakage and rotational play. This catches transit damage, packing weakness or specification drift before parts enter regional inventory.

Supplier Comparison: Weak Signals vs Useful Evidence

Email quotations are a poor way to select a flywheel supplier unless every factory is quoting the same specification, MOQ, Incoterm, packing rule and document package. A quote for 50 pcs neutral packing EXW is not comparable with 300 pcs private label FOB including palletisation and inspection reports.

Use a scorecard that separates weak signals from evidence.

Project type	Typical MOQ discussion	Main lead-time driver
Existing reference, neutral packing	50-100 pcs per SKU when components are available	Production slot and component availability
Existing reference, private label	100-300 pcs per SKU	Label, carton, barcode and pallet approval
New reference from sample	200-500 pcs initial batch after approval	Measurement, prototype, tooling or fixture and validation cycle
Programme supply for distributor range	12-month forecast by SKU, often with call-off planning	Capacity reservation and inventory planning

</tr></thead><tbody> </tbody></table>For commercial comparison, ask each supplier for lead time by stage, payment terms, sample charge policy, tooling or fixture ownership, spare packaging artwork cost and the warranty claim evidence needed for credit or replacement.

A serious dual mass flywheel Jeep manufacturer China shortlist should include factories willing to support sample approval, batch traceability and audit discussion. Driventus supplies B2B customers only and can support distributors, OEM/Tier-1 sourcing teams and repair-chain procurement departments with application review, quotation and manufacturing feasibility checks.

Frequently asked questions

Yes, private-label supply can be discussed for approved references and agreed MOQs. Packaging artwork, carton strength, barcode rules, label position, pallet layout and market-specific markings should be confirmed before mass production.

Send the vehicle application, engine and gearbox details, buyer-supplied OE cross-reference if available, target annual volume, market destination, packing requirement, Incoterm preference and any inspection, PPAP or incoming-quality requirement.

No. Driventus is an independent aftermarket manufacturer; brand names are referenced for fitment only. Parts are supplied according to agreed specifications, validation requirements and customer purchasing terms.

For Jeep dual mass flywheel sourcing, send your application list, target volume, target Incoterm, packing rules and documentation requirements so our team can review feasibility and pricing. To start a technical RFQ, [request a quote](/contact.html).

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Comparison factor	Weak response	Useful evidence
Fitment confirmation	General model name only	Application, engine, gearbox, year range and reference cross-check
Quality system	Certificate image without scope	Valid IATF 16949:2016 and ISO 9001:2015 scope review
Technical data	Photo-based quotation	Drawing, sample report, tolerance sheet or controlled specification sheet
Process control	Outsourced assembly not documented	Defined machining, assembly, balance and final inspection controls
Claim handling	Case-by-case verbal promise	Batch traceability, 8D response and documented corrective action process
Export support	Cartons only	Marking, palletising, documents, booking data and shipment coordination