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45521-LGC6-E00 Plate Diaphragm

Fits 4 KYMCO model-years, including AK550 (2025) and AK550 2022. Callout 14 on the F04 Brake Master Cylinder diagram, 1 per machine.

Genuine KYMCO OEM Part no. 45521-LGC6-E00 Also written 45521LGC6E00 Fits 4 model-years

Part number: 45521-LGC6-E00
Also written: 45521LGC6E00
Factory name: PLATE DIAPHRAGM

$4.77

US shipping, calculated at checkout · Special orders come from KYMCO’s US distributor · 14-day returns & fitment guarantee

What this part is

Plate Diaphragm is the component KYMCO's factory catalogue lists under number 45521-LGC6-E00, in the brakes group. It is drawn on the F04 Brake Master Cylinder exploded view as callout 14, and the table below lists every model-year that takes it.

Fits these KYMCO models (4 model-years)

Model	Years	Factory code	Diagram	Callout	Qty
AK550	2025	SAA1AL(US)	F04 Brake Master Cylinder	14	1
AK550 2022	2022	SAA1AJ(US)	F04 Brake Master Cylinder	14	1
AK550 2022	2023	SAA1AK(US)	F04 Brake Master Cylinder	14	1
AK550(2021)	2021	SAA1AA(US)	F04 Brake Master Cylinder	14	1

See it on the diagram

The factory exploded view this part is drawn on.

F04 — Brake Master Cylinder

View diagram →

Often needed for the same job

From the same assembly diagrams as this part.

Not sure it’s yours?

Check the callout number: on the diagram above, 45521-LGC6-E00 is the part at callout 14.
Decode your VIN to land on the exact model, year and colour KYMCO built for you.
Still unsure? Email us the number and your VIN and we will confirm the fit.