A 3SZ-VE VVT gear enquiry becomes much easier to answer when it includes the engine code and the complete part reference. The selected RunningRoo product lists 13520-B1020 and 13520-BZ030, but those references should be checked against the actual vehicle before purchase. A Terios, Rush or Avanza model name on its own is not enough to establish the correct camshaft component.
You can review the RunningRoo 3SZ-VE camshaft VVT gear and its matching active eBay listing. Both were checked for this guide. The purpose here is to help an Australian owner or workshop turn those listings into a precise order: identify the engine, confirm the OE reference and position, establish the diagnosis, then arrange the correct part.
RunningRoo is Australian-operated and based in Blackburn, Melbourne. For friendly support, call 0425 890 125. Melbourne local pickup is by appointment, and fast dispatch is available subject to confirmed stock and current order arrangements. Send the VIN and mechanic’s information before checkout so that local convenience supports an accurate purchase.
Listing detail to confirm: The eBay structured manufacturer-part-number field shows HL-FT-2TR-15, while its title and seller description identify the 3SZ-VE gear and the two references discussed here. Treat this as a catalogue discrepancy to resolve with RunningRoo, not as evidence of interchange with another engine. Confirm the supplied gear identification and vehicle fitment in writing.
VIN · complete engine code · OE reference
Professional diagnosis · required parts · written contents
Current dispatch estimate · pickup appointment · workshop booking
Start with the full engine identity
Write the engine code as 3SZ-VE rather than simply “Toyota 1.5” or “Daihatsu VVT”. Include the VIN or chassis identification, build date and model details from the vehicle records. If the vehicle is an import, add the original market and any relevant import documentation. These details give the supplier a defined application to check.
Daihatsu’s official January 2006 announcement identifies the 3SZ-VE in the Be-go and Toyota Rush range discussed there. It is useful historical manufacturer evidence linking an engine designation with particular models. It is not a parts catalogue for every later vehicle, and it does not establish interchange between the two OE references in this product title. See Daihatsu’s original announcement.
The same discipline applies to the selected listing’s other model references, including Materia, Sirion, Terios, Alza, Avanza and bB. Treat them as the seller’s application leads requiring confirmation. A familiar vehicle name does not eliminate the need to identify the installed engine and the actual component requested by the workshop.
Read 13520-B1020 and 13520-BZ030 as complete references
Copy every character from the old component or workshop parts lookup. Include a photograph when the marking is difficult to read. Removing a hyphen for a search is different from changing a digit or suffix; the latter can describe a different reference. Ask the supplier to resolve uncertain markings rather than selecting the number that looks closest.
The selected product associates 13520-B1020 and 13520-BZ030 with its application. This article reports that seller association, not an independently established factory supersession. Ask RunningRoo to confirm the proposed replacement for your VIN and provide any catalogue clarification needed by the installer. Do not describe the numbers as universally interchangeable without that evidence.
| Detail | What to provide | What it helps establish |
|---|---|---|
| Engine | Confirmed 3SZ-VE identification | Correct starting point for the product search |
| Vehicle | VIN or chassis number and build details | Specific catalogue application |
| Old component | Full reference and clear photographs | Comparison with the proposed replacement |
| Position | Workshop identification of the camshaft component | Which assembly is actually required |
| Diagnosis | Mechanic’s findings and requested part | Whether a gear purchase matches the repair |
| Product | Exact website or eBay link | Which supplier package is being discussed |
Keep that information in one message. A supplier should not have to piece together an engine code from one conversation, an old-part photograph from another and a different listing from a third. A concise, complete enquiry reduces the possibility that a fitment reply refers to a product other than the one you eventually order.
What the factory material says about DVVT
The Daihatsu factory technical material reproduced in the linked manual describes a chain-driven housing and a vane connected to the intake camshaft. Controlled oil flow changes the camshaft phase, while a locking arrangement is described for starting conditions. It also identifies an oil control valve as a separate part of the system. See the 3SZ-VE/K3-VE technical material, pages 2-51 to 2-54.
This provides an important distinction: the VVT gear or controller is not the same component as the oil control valve. The document is used for system context, not as proof that the advertised part fits every application. Your workshop should use the applicable current service information for testing and installation, including any engine-version differences.
A purchasing enquiry should therefore name the component the technician has diagnosed. If a report says only “VVT problem”, ask whether the required item is the controller, the control valve or another identified part. The product title alone cannot answer that diagnostic question, and buying one component does not amount to replacing the entire system.
Separate this article from K3-VE parts enquiries
The factory material discusses both 3SZ-VE and K3-VE in places, which is useful for understanding shared terminology. It does not establish that their replacement gears are interchangeable. This article targets the selected 3SZ-VE product and its listed references. If the engine is K3-VE, use the appropriate RunningRoo K3-VE buying guide and request a separate fitment check.
This distinction is particularly important when searching by model name. A broad search can return articles and products covering different versions of a vehicle. Before comparing prices or images, check which engine each result actually addresses. A lower-priced part for an unconfirmed application is not a meaningful alternative to the correct product.
If your vehicle records conflict with a seller’s description, send the conflict to the supplier and installer. Explain exactly what the record says and which listing you are considering. Avoid resolving the discrepancy by assuming an engine code was merely abbreviated. Confirmation should be based on identifiable vehicle and component information.
Turn symptoms into a useful diagnostic request
Describe the concern without deciding which part must be responsible. Tell the workshop when it happens, how long you have noticed it and whether any warning lamp or drivability change accompanies it. Include recent servicing or timing work. These observations help organise the assessment, but they do not replace the mechanic’s testing.
If a scan has been performed, retain the complete report. Ask the technician to explain what the result establishes and what further checks are needed. A code description containing camshaft or valve timing does not by itself identify the selected gear. The useful purchasing information is the workshop’s supported conclusion and the corresponding part requirement.
Ask whether the diagnosis is final or depends on inspection after access is gained. Where uncertainty remains, agree on the next stage before buying. This is especially useful for an older vehicle with limited history, where several assumptions can otherwise accumulate between the owner’s description, the workshop booking and the parts order.
Ask for a component-specific quotation
A clear quote identifies the VVT gear separately from any chain components, control valve, seals, fasteners or other required parts. Ask the installer to explain which items are necessary for the diagnosed repair and which are subject to inspection. The objective is a sensible scope, not automatic replacement of every component associated with valve timing.
If the workshop recommends additional timing work while access is available, ask for the basis of that recommendation. The answer may affect both the parts list and labour planning. Keep it documented so the supplier can confirm the correct order. Do not assume the single gear listing includes the surrounding components needed for a broader job.
Equally, do not assume a gear-only purchase is always sufficient. The selected product is a candidate component, while the repair belongs to a specific engine with a specific condition. The workshop should define what is required and explain what it will verify on completion. That creates a clearer decision than choosing the smallest or largest order purely by price.
Understand what the product reference does not promise
An OE-style reference in an aftermarket listing is used to identify an application; it should not be presented as proof that the supplied part was manufactured by Daihatsu or Toyota. Ask for the actual product description and current written terms. Keep genuine manufacturer identity, aftermarket suitability and vehicle compatibility as separate questions.
Similarly, a new part is not a diagnosis, a guarantee of a particular service life or proof that every related symptom will disappear. The value of the purchase depends on correct identification and an appropriate repair. Avoid adding unsupported claims about permanent fixes, improved performance or universal upgrades when discussing the product with another owner.
Review the specific RunningRoo VVT gear and matching eBay item before making the order. If the workshop refers to a different number, do not silently substitute it with the advertised one. Ask for a clear explanation of the proposed match and keep that reply with your invoice.
Prepare a strong pre-order message
A useful message could read: “My workshop has identified the engine as 3SZ-VE and requested the intake VVT controller. Here are the vehicle identification details and a photograph of the existing part number. I am considering your product listing showing 13520-B1020 and 13520-BZ030. Please confirm the correct supplied part for this vehicle and the current package contents.”
Add your preferred ordering channel and whether you need delivery or Melbourne pickup. If the mechanic has not yet confirmed the component position or reference, say so. The supplier can then explain what information is missing rather than issuing a reply based on an assumption. A short, honest enquiry is more effective than an overconfident but incomplete one.
For friendly local support, call 0425 890 125. RunningRoo’s Australian-operated Melbourne business can help with the product enquiry and current supply arrangements. The installing workshop should remain involved wherever a question concerns diagnosis, mechanical condition or the correct repair procedure.
Coordinate the parcel with the installer
Ask the workshop whether it wants to approve the product before you pay and whether it accepts owner-supplied parts. Agree when the part should arrive and who will inspect it. If you are ordering on behalf of a family member or a business, keep the vehicle and order references consistent so that the parcel can be linked to the correct booking.
For Melbourne local pickup, arrange an appointment in Blackburn after availability is confirmed. Do not assume an older promotional image or broad pickup wording establishes unrestricted collection hours. For delivery, ask about fast dispatch for the confirmed stock item and the current estimate to your postcode. Allow time for the workshop to check the parcel before installation.
Retain the packaging and labels until the supplied gear has been accepted for the application. If a marking or physical detail raises a question, photograph it and contact RunningRoo before fitting. The installer should not have to rely on a thumbnail image or an incomplete conversation to determine whether the delivered part matches the order.
Preserve a useful repair record
At handover, ask the workshop to identify the component fitted and any additional work completed. Keep the diagnosis, fitment confirmation and invoices together with the date and odometer reading. This is valuable information if the vehicle changes hands or a later technician needs to understand its repair history.
Ask how the workshop assessed the original complaint and whether anything remains to be observed. If a concern persists, report the conditions clearly rather than immediately ordering another valve-timing part. Referring to the original diagnosis and completed scope gives the next discussion a factual starting point.
Follow the maintenance information applicable to the actual vehicle. This guide does not supply a universal oil grade, service interval or replacement distance for every model named in the listing. Those details should come from the appropriate manufacturer information and the workshop’s vehicle-specific advice.
Frequently asked questions
Are 13520-B1020 and 13520-BZ030 guaranteed substitutes?
The selected seller listing associates both references with the product. This article does not independently establish universal factory interchange or supersession. Confirm the proposed part using your vehicle identity, engine code, existing reference and the relevant catalogue information before ordering.
Does the VVT gear include an oil control valve?
Do not assume it does. The factory material describes the controller and oil control valve as distinct components. Ask the supplier for the current package contents and have the workshop identify exactly which component its diagnosis requires.
Can I order this for a K3-VE because the manual covers both engines?
No interchange is established by a shared manual section. This article concerns the 3SZ-VE product. A K3-VE application needs its own product and fitment check, even if the terminology or outward appearance seems similar.
What if I cannot read the old part number?
Send a clear photograph and ask the installer to help identify the component through the vehicle information and appropriate catalogue. Do not guess a missing digit. Explain any uncertainty to RunningRoo so the enquiry can be checked accurately.
Where can I buy with support in Australia?
Use the RunningRoo 3SZ-VE VVT product page or verified eBay listing. Call 0425 890 125 or visit the contact page for friendly support, fast dispatch enquiries and Melbourne local pickup by appointment from an Australian-operated business.
Related RunningRoo guides
For wider background, read Intake versus exhaust VVT gear fitment and VVT gear versus solenoid diagnosis. These explain the broader checks; the product and engine references in this article define its specific ordering scope.
Sources and verification scope
Product availability and seller descriptions were checked on 8 October 2026. Stock, contents and terms can change; obtain current confirmation before purchase. Technical context is drawn from the manufacturer-issued material below. Copies on third-party archives are identified as such. They do not certify this aftermarket product or replace current vehicle-specific service information.
- Daihatsu and Toyota Launch New Compact SUV, 17 January 2006 — Official manufacturer engine-identification context.
- Daihatsu Terios factory technical material: Engine Mechanical 3SZ-VE/K3-VE, 2-51/52 — Factory technical material reproduced on Studylib; not current part-number interchange authority.