
Home/Who We Serve/Classic and Long Tail References
Who we serve
Long Tail and Classic Oil Pan References Kept in Production
For specialists who keep selling references that mainstream catalogues have already dropped.
The problem
What Goes Wrong Today
- A reference that still sells fifty pieces a year is not worth a large factory's tooling time
- Original tooling is scrapped and no drawing survives, only the part itself
- Classic platform buyers will pay for correctness, but only if the flange and drain position are right
- Minimum order quantities designed for volume lines kill a long-tail programme before it starts
The answer
What RUIFAN Puts Against It
- Catalogue blocks with only one or two references are published in full rather than dropped
- The factory states it develops pans and castings from a customer-supplied sample when no drawing exists
- Archive photographs published so a part can be checked before a sample is shipped
- Long-tail lines scheduled alongside volume production rather than as stand-alone runs
Typical buyers
Who This Covers
Classic vehicle specialists, restoration suppliers and single-marque parts businesses.
Recommended references
Parts This Segment Orders Most Often
How we work together
Delivery Routes for This Segment
Replacement Oil Pan Programmes
Running a replacement pan programme from the first number on a quote request to a packed, marked and shipped container.
Custom Aluminum Casting
For parts that are not in the catalogue. The original RUIFAN site stated the factory develops oil pans and other aluminum castings from customer-supplied samples or drawings.
Engine Support and Bracket Supply
Twenty-one engine supports, brackets and gearbox covers sit in the same catalogue as the pans, mostly against VW and GM references.
Reading for This Segment
Die Casting Sand Casting and Gravity Casting for Engine Parts
The three casting methods listed in the RUIFAN process sheet, what each one is good for, and how the choice shows up in the finished part.
Deep and Shallow Draw Stamping for Oil Pans
How a steel pan is drawn, where the metal thins, and why draw depth is the constraint that decides tooling.
Oil Pan Sealing Surface and Gasket Basics
Flange flatness, gasket choice and torque sequence — why most replacement pans that leak were fitted, not made, badly.
Questions From Classic and Long Tail References
Does RUIFAN supply classic and long tail references directly?
Yes. Classic vehicle specialists, restoration suppliers and single-marque parts businesses. The factory quotes and ships directly rather than through an intermediary.
What is the smallest order you will take from this kind of buyer?
Minimum order quantity was not recorded in the archived catalogue and is agreed per programme. It depends mainly on whether references run alone or alongside other lines in the same family.
Can you cover a whole number family rather than the fast movers?
That is what the catalogue is built for. Blocks holding a single reference — Ford, Volvo, Opel and Mercedes-Benz — are published in full rather than dropped.
What identification data comes with the parts?
Whatever the original catalogue database stored: OE number, alternate numbers, notes and vehicle application tables. Twenty records carry alternates and six carry application tables. Where nothing was stored, the page says so.
What if a reference we need is missing entirely?
The original RUIFAN site stated the factory develops oil pans and other aluminum castings from customer-supplied samples or drawings. A sample is enough to open the conversation.
Talk to RUIFAN About Classic and Long Tail References
Send your number list, your volumes and your destination market. We will come back with what the catalogue covers and what needs tooling.









