RHC PART · FITS R66 · AUTHORIZED ROBINSON HELICOPTER DEALER

A521-2 Switch Assembly, R66, Single

Robinson part number A521-2, switch assembly, R66, single, for the R66. Factory-new from APEX Helicopters, an authorized Robinson service center at Fort Lauderdale Executive (FXE). Send the RFQ and a service specialist confirms price, availability, lead time, and install hours.

PART NUMBER: A521-2
DESCRIPTION: SWITCH ASSY, R66, SINGLE
UNIT: EACH
FITS: R66
CONDITION: FACTORY NEW
2026 PRICE LISTEffective January 1, 2026: $507.10

List price shown for reference. Call (954) 914-0600 or send the RFQ: availability, lead time, and install hours quoted together, usually the same business day.

Where it is in the parts catalogNEW

Every catalog figure this part appears in, by model. Tap a row to see the drawing with the part circled, or open the same page in the Robinson Helicopter Illustrated Parts Catalog (IPC).

MODELCHAPTERFIGUREITEMQTYPAGE

R66 · FIGURE 28-7 · LOW FUEL SWITCH AND DRAIN ASSEMBLY INSTALLATION · CHAPTER 28 · PAGE 28.6 · SEP 2020ITEM 31 REFERENCE · CIRCLED · Open in the official R66 IPC ↗

R66 parts catalog figure 28-7, low fuel switch and drain assembly installation, with item 31 (A521-2 switch assembly - low fuel (single; includes items 9, 28, and 29)) shown for reference — R66 · Figure 28-7 · Low fuel switch and drain assembly installation · Chapter 28, Fuel System · Page 28.6 · Revised SEP 2020Illustration © Robinson Helicopter Company · R66 Illustrated Parts Catalog, August 2026 edition · Figure 28-7

CATALOG EDITIONS: R66 AUG 2026 · PARTS LIST PAGE 28.7 ↗

How ordering works

Send the RFQ with quantity + aircraft serial
We quote price, availability + install hours
Approve and schedule

Aircraft on ground? AOG requests jump the line. Serial effectivity and applicable service bulletins are checked on every quote, by a person.

Related parts

A521-1

Switch Assembly, R44

FITS R44

A521-3

Switch Assembly, R22

FITS R22

A521-4

Switch Assembly, R66, Dual

FITS R66

Not the part you need? Send any Robinson part number, the RFQ takes whole lists.