
4WM-82131-00
A battery strap. The buckle is fitted in our plant, so what leaves is a finished assembly and not two parts to be married up later.
Specification
| Part number | 4WM-82131-00 |
|---|---|
| Part family | Moulded rubber part |
| Construction | Single-compound moulding, no metal insert |
| Compound code | EP60 (marked on the part) |
| Face detail | Moulded rubber strap with a metal buckle fitted at one end. |
| Moulding compounds | EPDM, SBR, TPE, TPE-SEBS, PVC or PP, to drawing |
| Tooling | Designed and built in house |
| Prototype parts | 4 weeks from prototype tool |
| PPAP | Typically 8 weeks, to ISO/TS 16949 or VDA |
| Dimensions | Built to customer drawing or to a supplied sample |
| Moulded from | Beijing rubber plant (rubber) / Shanghai plant (plastics) |
The face on this part
Moulded rubber strap with a metal buckle fitted at one end. It sits in the YAMAHA Rubber Parts group, and the photograph above is of the part itself rather than a rendering — what you see is the tread, the outline and the finish as they leave the tool.
Tooling and first parts
All tooling is designed and made in house. Parts from a prototype tool reach you in 4 weeks, which is the window in which the face, the retention and the hardness can still be changed without restarting anything.
Getting it approved
Where the part goes onto a programme we run PPAP to ISO/TS 16949 or VDA, typically over 8 weeks, on parts from the production tool rather than on prototypes.
What we need to quote it
The drawing or the sample, the annual volume, and the service conditions the part sees. If the part already exists in this catalogue we will tell you that instead of quoting a new tool.
Background reading
Choosing a Pedal Pad Compound: EPDM, SBR, TPE and When Each One Fails
Service conditions, not price, should pick the compound. Here is how we narrow it down and what we test to prove the choice.
Reading a Compound Code: What EP70, NBR70 and CI60 Tell You
The codes marked on our YAMAHA parts are a compact statement of family and hardness. Here is how to read one.
Ribs, Lattices, Studs and Slots: What Each Pedal Tread Is For
Four tread families appear across this catalogue. Each one is a different answer to the same question about grip and wear.
Questions buyers ask
Which compound will this part be moulded in?
Whichever the drawing calls for. We run EPDM, SBR, TPE, TPE-SEBS, PVC and PP with or without glass reinforcement; if you have not fixed a compound yet, send the service conditions and we will propose one.
How long before I see a real 4WM-82131-00 sample?
Samples follow the prototype tool by 4 weeks. If the part is already tooled here, as most parts in this catalogue are, existing samples can go out far sooner.
What do you need from us to quote it?
The part, the annual volume, and the service conditions it sees. Compound and hardness we can propose; volume and duty we cannot guess.
How is the material verified?
Tensile strength and elongation to fracture catch under-cure; oil resistance catches EPDM specified where NBR was needed. All of it runs in the Beijing facility next to the line.
What does the EP60 marking on the part mean?
It is the customer's own compound designation, carried on the part so the grade travels with it. The letters give the family — EP for the EPDM grades, NBR for nitrile — and the digits give the nominal Shore A hardness.
Quote the 4WM-82131-00
Send the annual volume and, if you have one, the drawing. Prototype parts follow 4 weeks after a prototype tool.





