GM Parts
oil pan 12578194
| Vehicle brand block | GM Parts |
|---|---|
| Part type | 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
GM Oil Pan
This page covers 12578194, a oil pan held in the GM 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 a wet-sump reservoir: it holds the oil, keeps it over the pump pickup under braking and cornering, and seals the bottom of the crankcase against a machined or pressed flange. 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
- Fleet and workshop stock for recurring service work
- Replacement of a dented, corroded or leaking pan
- Engine reconditioning and rebuild programmes
- Aftermarket catalogue coverage across a number family
Specifications
12578194 Data Sheet
Everything RUIFAN holds on this reference, taken from the archived catalogue record.
| Catalogue name | oil pan 12578194 |
|---|---|
| Part type | Oil Pan |
| Vehicle brand block | GM 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
Aftermarket distributors
Warehouse distributors and wholesalers building coverage across a whole GM number family rather than a single fast mover.
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.
Problems it solves
What Brings Buyers to This Part
- The sealing flange on the old pan is no longer flat, so a new gasket alone will not stop the leak.
- Stock for this reference has to come from the same factory as the rest of the family, or the packing and marking will not match.
- The pan on the vehicle is dented, corroded or leaking, and the engine cannot go back into service until it is replaced.
- The drain boss thread has been stripped by repeated servicing and a thread insert is not an acceptable repair.
Key benefits
Why Buy 12578194 From RUIFAN
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 GM 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 GM Parts range
Manufactured under the quality systems recorded by RUIFAN: ISO 9001 and TS 16949
Materials and manufacturing
How This 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
12578194 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 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 12578194
A working sequence for confirming the reference and fitting it without a repeat leak.
- Confirm the reference against the number cast or stamped into the part you are replacing, not against the parts system entry.
- Compare the archive photograph on this page with the part on the vehicle: flange outline, bolt count, drain boss side and overall depth.
- Check whether the application requires an oil level sensor boss. Two otherwise identical references can differ on this alone.
- Clean both the pan flange and the block face completely before fitting. Old gasket material and oil film are the usual cause of a repeat leak.
- Check the new pan sits flat against the block dry, before any gasket or sealant goes on.
- Follow the engine manufacturer's gasket or sealant specification. Do not add sealant on top of a moulded gasket.
- Torque from the centre of each long side outwards in at least two passes, and respect the sealant cure time before filling with oil.
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 12578194
What vehicle does 12578194 fit?
The archived catalogue record lists this reference in the GM 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 is 12578194 made from?
The original catalogue record did not state a material for this reference, so none is published. RUIFAN produces both drawn steel and cast aluminum parts of this type, and the correct construction is confirmed against a sample or the part being replaced before quoting.
Can you supply this reference together with other GM lines?
Yes. The GM Parts block holds 11 references and they are normally quoted and shipped together. Consolidating is what makes low-volume lines viable in the first place.
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.
Related References in GM Parts
Guides That Help With This Part
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.
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.
Request a Quote for 12578194
Send the reference, the quantity and the destination market. We will confirm the part against the catalogue record before quoting.