RHC OVERHAUL-EXCHANGE UNIT · FITS R44 · AUTHORIZED ROBINSON HELICOPTER DEALER

D679-4R D679-4 Oh/exch Empty

Robinson overhaul-exchange part number D679-4R, D679-4 oh/exch empty, for the R44. Robinson has had no OH stock for this unit for a while. The factory-new D679-4 is the alternative, 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: D679-4R
DESCRIPTION: D679-4 OH/EXCH EMPTY
UNIT: EACH
FITS: R44
CONDITION: RHC OVERHAULED · EXCHANGE
RHC OH STOCKChecked October 2026: NONE
2026 LIST PRICERHC price list, effective January 1, 2026: $973.00
PLUS CORE DEPOSITRefunded when your core is returned to RHC: $1,050.00
TOTAL WITH CORE DEPOSIT: $2,023.00

Exchange list price shown for reference. Robinson has had no OH stock for this unit for a while. Call (954) 914-0600 or send the RFQ: availability, lead time, and install hours quoted together, usually the same business day.

FACTORY-NEW ALTERNATIVE · NO CORE TO RETURN

D679-4 Cylinder Assembly, Unfilled

Robinson has had no OH stock for the D679-4R for a while. D679-4 is the same part factory-new, with no core to return.

2026 LIST PRICE: $3,930.00
CONDITION: FACTORY NEW
FITS: R44

See D679-4 →

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

R44 · FIGURE 32-13 · POP-OUT FLOATS – CYLINDER ASSEMBLY INSTALLATION · CHAPTER 32 · PAGE 32.12 · FEB 2025ITEM 18 CIRCLED · QTY 1 · Open in the official R44 IPC ↗

R44 parts catalog figure 32-13, pop-out floats – cylinder assembly installation, with item 18 (D679-4R d679-4 cylinder assembly (empty; overhaul exchange)) circled — R44 · Figure 32-13 · Pop-out floats – cylinder assembly installation · Chapter 32, Landing Gear · Page 32.12 · Revised FEB 2025Illustration © Robinson Helicopter Company · R44 Illustrated Parts Catalog, June 2026 edition · Figure 32-13

CATALOG EDITIONS: R44 JUN 2026 · PARTS LIST PAGE 32.13 ↗

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

D679-3

Cylinder Assembly, Filled

FITS R44

D679-3R

D679-3 Oh/exch Filled

FITS R44

D680-1

Lever Assembly

FITS R44 · R66

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