Camshaft phaser specifications matter when you are qualifying suppliers for engine timing components. For procurement teams, the key questions are not only fitment but also material grade, hydraulic response, locking function, cleanliness, and validation data. A phaser that matches OE packaging but misses oil control, phasing range, or durability targets can create warranty exposure and line-side rejection.
Driventus supplies engine and powertrain components from Taizhou, Zhejiang, with certified production under IATF 16949:2016 and ISO 9001:2015. We serve aftermarket distributors, OEM and Tier-1 programmes, and repair-chain buyers in more than 60 countries. Driventus is an independent aftermarket manufacturer; brand names are referenced for fitment only.
This article sets out the specification points buyers should review before approving a camshaft phaser for sourcing, replacement, or custom manufacturing. It also shows where to confirm traceability, test results, and OE cross-references such as OE 06A107065 when applicable.
What procurement teams should verify first
For a camshaft phaser purchase, the first step is to confirm the application map and the operating envelope. A correct part number is not enough. Buyers should verify the following:
Intake or exhaust application
Number of phasing positions or continuous phasing range
Locking pin design and fail-safe position
Oil control strategy and connector interface
Mounting interface, bolt pattern, and sprocket tooth count
Target engine family, cylinder count, and OE cross-reference
If the sourcing file includes an OE reference such as OE 06A107065, confirm whether the requirement is for dimensional equivalence, functional equivalence, or full validation to the same duty cycle. For mixed-platform programmes, ask for a controlled fitment matrix tied to engine code, model year, and emissions calibration.
The specification sheet should identify the mechanical and functional limits that define interchangeability. The table below lists the fields procurement teams should request from suppliers.
Specification item
Typical sourcing requirement
Buyer note
Body material
High-strength aluminium alloy or powdered-metal steel, per design
Must match mass, stiffness, and oil-gallery layout
Rotor / vane material
Case-hardened steel or equivalent
Check wear resistance and surface finish
Phasing range
As defined by engine calibration
Must be measured, not estimated
Locking position
Parked or fail-safe angle
Confirm behaviour at low oil pressure
Operating oil pressure
Application-specific
Validate at hot idle and peak load
Surface roughness
Controlled functional finish on oil-contact surfaces
Prevents leakage and sticking
End play / axial clearance
Engineering drawing limit
Tolerance stack affects response time
Radial clearance
Engineering drawing limit
Excess clearance can raise noise and drift
Seal material
HNBR, FKM, or equivalent as specified
Must resist oil, temperature, and additives
Mass balance
Part-level controlled
Relevant for NVH and actuator response
</tr></thead><tbody> </tbody></table>When the supplier cannot share a complete drawing, ask for a dimensional summary with nominal size, tolerance band, and gauge method. For procurement approval, the phaser should be backed by first-article inspection data and traceable lot control.
Materials, tolerances, and surface finish
Phasers operate under repeated hydraulic loading, oil contamination risk, and thermal cycling. Material and finish control are therefore as important as nominal geometry.
What to request in the technical file
Base material specification and heat-treatment route
Hardness range by component section
Coating or surface treatment, if used
Critical bore, journal, and vane tolerances
Runout and concentricity limits
Deburr and edge-break requirements on oil passages
Cleanliness target for assembled units
A buyer should avoid approving parts based only on visual match. The critical risks are internal leakage, delayed actuation, and locking-pin wear. If the phaser has a composite or polymer subcomponent, request temperature ageing data and chemical resistance to engine oil additives.
For sourcing in regulated markets, also confirm conformity with REACH (EC) No 1907/2006 for substances of very high concern, and with any customer-specific restricted-substance list. If the component is used in an emissions-related assembly, ask for evidence aligned to the vehicle programme’s validation plan rather than a generic declaration.
Testing and validation data to request
A technical datasheet should not be limited to dimensions. Buyers should request evidence that the part meets functional requirements across the expected duty cycle.
Functional phasing response at defined oil pressure and temperature
Lock and unlock timing
Cycle durability over repeated actuation
Leakage and internal pressure retention
Noise, vibration, and harshness screening
Cleanliness and particulate control
Dimensional stability after thermal soak
Where relevant, suppliers should reference published standards or test methods used in-house or by customers. For example, durability and environmental exposure can be assessed using procedures based on SAE J2527, while emissions-system compatibility may require application-specific verification under ECE R-83-related programme conditions. If the phaser is part of a broader OE-equivalent package, ask for test reports that tie results to engine variant, oil grade, and test duration.
Driventus operates under a documented quality system aligned with IATF 16949:2016 and ISO 9001:2015. For bespoke programmes, our custom manufacturing process can define inspection points, control plans, and packaging requirements before production release.
Comparison of sourcing options for buyers
Procurement teams often choose between three sourcing paths: catalogue replacement, validated OE-equivalent supply, and custom-engineered production. The table below shows the practical trade-offs.
Sourcing path
Best for
Key advantage
Main risk
Catalogue replacement
Fast replenishment
Shorter approval cycle
Limited control over non-standard variants
OE-equivalent supply
Distributor and repair-chain programmes
Better fitment confidence
Requires stronger validation package
Custom manufacturing
OEM / Tier-1 or private label
Exact spec control
Longer development and PPAP-style approval
</tr></thead><tbody> </tbody></table>If your buying plan includes multiple SKUs for one engine family, request a consolidated BOM and a revision-controlled specification sheet. This reduces confusion between intake and exhaust versions, hydraulic and electric variants, and early-versus-late production changes. A good supplier should also state packaging count, label content, country of origin marking, and pallet configuration for import planning.
For current availability, buyers can review our catalog and submit a sourcing brief through request a quote.
Approval documents and commercial checks
A complete procurement file should include both technical and commercial documents. The minimum set usually includes:
Part drawing or dimensional summary
Material declaration and restricted-substance statement
Inspection report with serial or lot traceability
Test summary for actuation and durability
Packaging specification
Commercial terms, MOQ, and lead time
Country-of-origin declaration
If the programme requires audit support, request evidence of incoming inspection, process control, final inspection, and traceability flow. Driventus can support buyer reviews with documentation tied to IATF 16949:2016 and ISO 9001:2015 controls. For customers needing a private-label or application-specific design, our custom manufacturing team can define the specification before tooling release.
Driventus is an independent aftermarket manufacturer; brand names are referenced for fitment only. This statement should appear in your internal approval notes whenever OE references are used for cross-reference only.
Frequently asked questions
It should list material, phasing range, locking position, tolerances, surface finish, oil-pressure requirements, cleanliness targets, and test data. For purchasing, add OE cross-reference, packaging, traceability, and lead time.
Yes, if it is clearly stated as a cross-reference for fitment only. It should not imply manufacturer endorsement. Keep the note controlled in the sourcing file and verify dimensional and functional equivalence.
Common references include IATF 16949:2016, ISO 9001:2015, REACH (EC) No 1907/2006, and application-specific testing methods such as SAE J2527 or programme-based ECE R-83 checks.
If you need a controlled specification pack, traceable samples, or a sourcing review for your programme, contact Driventus and [request a quote](/contact.html).
