Audi Parts
OIL PAN Upper 078 103 603AM
| OE number in record | 078 103 603AM |
|---|---|
| Vehicle brand block | Audi Parts |
| Part type | Upper Oil Pan |
Fields that were empty in the original catalogue database are shown as not recorded. No specification on this page has been invented.
Product overview
Audi Upper Oil Pan
This page covers 078 103 603AM, a upper oil pan held in the Audi Parts block of the RUIFAN catalogue and manufactured at the company's plant in Ruian, Zhejiang.
It is supplied to aftermarket distributors, engine rebuilders and workshops, and can be quoted as part of a wider order covering other references in the same number family.
This is the upper casting of a two-piece pan system. It carries load between block and bell housing and usually carries the pump pickup mounting, so its flange flatness matters on both faces at once. 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
- Engine rebuild work where both pan halves are renewed
- Aftermarket coverage of two-piece pan systems
- Programme supply alongside the matching lower sump
- Replacement of a cracked structural upper casting
Specifications
078 103 603AM Data Sheet
Everything RUIFAN holds on this reference, taken from the archived catalogue record.
| Catalogue name | OIL PAN Upper 078 103 603AM |
|---|---|
| Part type | Upper Oil Pan |
| Vehicle brand block | Audi Parts |
| OE number in record | 078 103 603AM |
| 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
OE and tier programme buyers
Engineering buyers who arrive with a drawing or a sample instead of a catalogue number.
Classic and long tail specialists
Single-marque and restoration businesses that keep selling references mainstream catalogues have already dropped.
Aftermarket distributors
Warehouse distributors and wholesalers building coverage across a whole Audi number family rather than a single fast mover.
Problems it solves
What Brings Buyers to This Part
- The two halves of a two-piece system were ordered separately and the joint faces do not match.
- A structural casting has been condemned during a rebuild and the programme needs a replacement that is dimensionally correct at both flanges.
- An engine rebuild has exposed a cracked upper casting and the lower sump alone will not restore the joint.
- The upper pan carries load between block and bell housing, so a damaged one cannot simply be sealed and reused.
Key benefits
Why Buy 078 103 603AM From RUIFAN
Scheduled against a stated annual oil pan output of 500,000 pieces
Long-tail references consolidated with volume lines instead of being dropped
No invented specifications: anything the archive did not record is shown as not recorded
Supplied against the reference recorded in the catalogue, not against a guessed equivalent
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 Audi Parts block, so packing and marking are consistent across a programme
Materials and manufacturing
How This Upper Oil Pan 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.
Confirm construction
Material and method confirmed against the part being replaced or a supplied sample.
Form or cast
Drawn from sheet, or die, gravity or sand cast, according to what the original part is.
Machine and finish
Sealing faces, bores and threads finished to the reference.
Inspect and pack
Checked against the reference sample, then packed with the sealing face protected.
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
078 103 603AM 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 upper oil pan | 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 078 103 603AM
A working sequence for confirming the reference and fitting it without a repeat leak.
- Confirm whether the engine uses a one-piece or a two-piece pan system before ordering.
- Check the reference against the casting number on the upper housing, which is usually on the gearbox side.
- Inspect both mating faces, block side and sump side, for flatness before assembly.
- Fit the upper casting to the block first and torque it to specification before the lower sump goes on.
- Where both halves are being replaced, fit them as a pair so the joint faces match.
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 078 103 603AM
What vehicle does 078 103 603AM fit?
The archived catalogue record lists this reference in the Audi 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 078 103 603AM?
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 Audi Parts
Guides That Help With This Part
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.
How Will I Know I Have a Bad Oil Pan
How a failing oil pan announces itself, why a dent is usually not an emergency, and when replacement is the right call.
Do They Make Different Oil Pans
Why engine code, sensor-hole configuration and drain-plug position decide fitment, and how to use an OE number properly.
Request a Quote for 078 103 603AM
Send the reference, the quantity and the destination market. We will confirm the part against the catalogue record before quoting.