RHC PART · FITS R66 · AUTHORIZED ROBINSON HELICOPTER DEALER
B304-12 Diode Assembly, With Fuse, R66
Robinson part number B304-12, diode assembly, with fuse, R66, 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
- B304-12
- DESCRIPTION
- DIODE ASSY, W/ FUSE, R66
- UNIT
- EACH
- FITS
- R66
- CONDITION
- FACTORY NEW
- 2026 PRICE LISTEffective January 1, 2026
- $214.50
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).
![R66 parts catalog figure 96-5, aft battery relay installation, with item 1 (B304-12 diode assembly (includes items 2, 8, 9, 25 [2], 28, wires, splices, and heat shrink as an assembly.)) shown for reference](/ipc/robinson-r66-parts-aft-battery-relay-installation-diagram-ipc-figure-96-5.webp)
CATALOG EDITIONS: R66 AUG 2026 · PARTS LIST PAGE 33.15 ↗
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
B304-1
Capacitor Assembly, 28V & 14V
FITS R22 · R44 · R66
B304-10
Fuse Holder Assembly
FITS R22 · R44
B304-11
Capacitor ASSY-R44, 14V
FITS R44
Not the part you need? Send any Robinson part number, the RFQ takes whole lists.