VW Parts
GEARBOX COVER 01N 321 359A
| Vehicle brand block | VW Parts |
|---|---|
| Part type | Gearbox Cover |
Fields that were empty in the original catalogue database are shown as not recorded. No specification on this page has been invented.
Product overview
VW Gearbox Cover
RUIFAN lists 01N 321 359A as a gearbox cover in its VW range. The part is produced in Ruian, Zhejiang, in the same plant that handles the rest of the VW Parts catalogue.
Buyers typically take it as part of a programme covering several references, since packing, marking and lead time are then handled once rather than per line.
This cover closes the transmission housing. Sealing face flatness and correct torque sequence are what decide whether it stays dry once the unit is back in the vehicle. The archived record for this reference holds the catalogue name, the vehicle brand block and the photograph; nothing further was stored, and nothing further is claimed here.
What this reference is used for
- Transmission rebuild and reconditioning work
- Replacement of a damaged or corroded cover
- Aftermarket coverage of transmission housing parts
Specifications
01N 321 359A Data Sheet
Everything RUIFAN holds on this reference, taken from the archived catalogue record.
| Catalogue name | GEARBOX COVER 01N 321 359A |
|---|---|
| Part type | Gearbox Cover |
| Vehicle brand block | VW Parts |
| Manufacturer | Ruian Ruifan Engine Parts Co Ltd, Ruian, Zhejiang, China |
| Quality systems | ISO 9001, TS 16949 (as recorded by RUIFAN) |
Not recorded in the archive
These fields were not stored in the original catalogue database. They are confirmed per order rather than estimated here.
Who it is for
Buyers Who Order This Reference
Engine rebuilders and workshops
Reconditioning shops and independent workshops that need the correct reference on the bench rather than a near equivalent.
Importers and private label brands
Brand owners who sell under their own label and need the factory behind that label to stay the same from season to season.
OE and tier programme buyers
Engineering buyers who arrive with a drawing or a sample instead of a catalogue number.
Problems it solves
What Brings Buyers to This Part
- Cover references sit between engine and transmission catalogues and fall through the gap in most parts systems.
- A rebuild is held on the bench for a low-value cover that nobody local stocks.
- The cover is damaged and the gearbox cannot be closed up until a correct replacement arrives.
Key benefits
Why Buy 01N 321 359A From RUIFAN
Archive photograph published at working size so flange pattern and drain position can be checked before ordering
Produced in the plant that holds the rest of the VW Parts block, so packing and marking are consistent across a programme
Quotable as a single line or as part of a wider order across the VW Parts range
Manufactured under the quality systems recorded by RUIFAN: ISO 9001 and TS 16949
Backed by a factory that has manufactured parts of this type since 1994
Where the archive holds alternate numbers or application data, they are published on this page unchanged
Materials and manufacturing
How This Gearbox Cover Is Produced
The archived record does not state a material for this reference. RUIFAN produces both drawn steel and cast aluminum parts of this type, and the correct construction is confirmed against the part being replaced before production is scheduled.
Blank and draw
A flat blank is drawn into the die. Deep sections need more than one operation because the wall can only thin so far per stroke.
Form the flange
The sealing flange is formed and pierced to the bolt pattern.
Join the deep section
Where the profile requires it, a separately drawn deep section is joined to the main body.
Finish and inspect
Coating applied, then flange flatness and bolt pattern checked against the reference sample.
Manufacturing methods listed here are the ones recorded on the original RUIFAN services page: deep and shallow draw stamping; die casting, sand casting and gravity casting; chrome plating and vacuum metallization. The method used for a given reference is confirmed against the part being replaced.
Quality control
Quality Systems Behind This Reference
RUIFAN recorded ISO 9001 and TS 16949 quality systems on its original site. Certificate numbers and validity dates were not stored in the archived material and are supplied on request rather than stated here.
Sealing flange
Flatness across the full perimeter decides whether the part seals at all. It is the first thing to check on arrival.
Drain boss
Thread condition and squareness to the boss face, checked before packing.
Dimensional check
Against the reference sample for the catalogue number being run.
Packing
Flange protection specified per programme, because a bent flange makes a sound part unusable.
Customisation
If This Reference Is Not Exactly What You Need
The original RUIFAN site stated that the factory develops oil pans and other aluminum castings from customer-supplied samples or drawings. That route covers references that never made it into the catalogue, superseded parts whose tooling has been scrapped, and private-label variants of an existing part.
A physical sample is enough to start. Where no sample survives, a dimensioned drawing or a 3D file works. Tooling cost, lead time and ownership are agreed in writing before any work begins.
What to send with an enquiry
- The number stamped or cast into the part being replaced
- The vehicle, the engine code and the production year
- A photograph of the flange face and one of the drain boss side
- Annual quantity, or the quantity for a first order
- Destination market, which affects packing and documentation
Comparison
01N 321 359A Against the Alternatives
How sourcing this reference from RUIFAN compares with the other routes a buyer has.
| Option | What you get | Where it falls short |
|---|---|---|
| RUIFAN catalogue supply | The reference held in a 136-number catalogue with the archive data published alongside it, produced in one plant with one packing standard. | Fields the original database never recorded are shown as not recorded rather than filled in. |
| Original equipment channel | Guaranteed fitment and full manufacturer documentation. | Highest unit cost, and older references are progressively withdrawn from supply. |
| Local pattern part supply | Short lead time and no import handling. | Coverage is usually limited to fast movers, so the long tail of a number family stays unsourced. |
| Used or reclaimed gearbox cover | Lowest purchase cost, sometimes the only route for a withdrawn reference. | Flange flatness, thread condition and corrosion are unknown until it is on the bench. |
Use guide
Identifying and Fitting 01N 321 359A
A working sequence for confirming the reference and fitting it without a repeat leak.
- Confirm the reference against the number on the cover being replaced.
- Check the sealing face for flatness before fitting.
- Clean both faces completely and use the sealant or gasket the transmission manufacturer specifies.
- Torque evenly in a cross pattern in two passes.
Torque figures, sealant specification and gasket type are set by the vehicle manufacturer for the engine concerned. Follow that procedure rather than a generic figure.
Questions About 01N 321 359A
What vehicle does 01N 321 359A fit?
The archived catalogue record lists this reference in the VW Parts block. No vehicle application table was stored for this reference in the original database, so none is shown. Send the vehicle, the engine code and the number from the old part and we will confirm against the catalogue before quoting.
What if the number I need is not in your catalogue?
The original RUIFAN site stated that the factory develops oil pans and other aluminum castings from customer-supplied samples or drawings. Send a sample, a drawing or a dimensioned photograph and we will review whether it can be tooled.
What quality systems does the factory work to?
The original RUIFAN site recorded ISO 9001 and TS 16949. Current certificate numbers and validity dates are not published here because they were not in the archived material; they are provided on request.
What are the minimum order quantity and lead time for 01N 321 359A?
Minimum order quantity, carton quantity and lead time were not recorded in the archived catalogue and are confirmed per order, because they depend on whether the reference is being run on its own or alongside other lines in the same family.
Do you have cross reference numbers for this part?
No alternate numbers were stored against this reference in the original database, so none are published here. Twenty of the 136 catalogue records do carry recorded alternates. If you hold a number you believe matches this part, send it with a photograph and we will check.
Related References in VW Parts
Guides That Help With This Part
Sourcing Replacement Oil Pans for Distribution
A buyer's checklist for adding an oil pan programme: number coverage, identification evidence, packing, and the questions to ask before the first container.
What Is an Oil Pan
What an oil pan is, where it sits on the engine and what it does — the original RUIFAN explainer, kept as it was published in 2009.
What Can Go Wrong With My Oil Pan
Impact damage, worn gaskets and contamination — the three failure modes the original RUIFAN guide identified, with sourcing notes added.
Request a Quote for 01N 321 359A
Send the reference, the quantity and the destination market. We will confirm the part against the catalogue record before quoting.