Yaesu RA084400A Genuine O‑Ring Seal for Airband Radios
Yaesu RA084400A Genuine O‑Ring Seal for Airband Radios
Yaesu RA084400A O‑Ring Replacement Seal for FTA‑550 / FTA‑750
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Yaesu RA084400A Genuine O‑Ring Seal for Airband Radios
Yaesu RA084400A O‑Ring Replacement Seal for FTA‑550 / FTA‑750

Yaesu Amateur Radios & Transceivers

Yaesu RA084400A O-Ring – Genuine Replacement Seal for FTA-550 / FTA-750 Airband Radios | Radioworld UK

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Product code: RA084400A
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£1.49
12 Months 14.9% APR
£0.15
£0.13
£1.69
£1.49
18 Months 14.9% APR
£0.15
£0.09
£1.69
£1.49
24 Months 14.9% APR
£0.15
£0.06
£1.69
£1.49
36 Months 14.9% APR
£0.15
£0.04
£1.69
£1.49
48 Months 14.9% APR
£0.15
£0.03
£1.69
£1.49
12 Months 19.5% APR
£0.15
£0.13
£1.75
£1.49
18 Months 19.5% APR
£0.15
£0.09
£1.75
£1.49
24 Months 19.5% APR
£0.15
£0.07
£1.75
£1.49
36 Months 19.5% APR
£0.15
£0.04
£1.75
£1.49
48 Months 19.5% APR
£0.15
£0.03
£1.75

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Yaesu RA084400A Genuine O‑Ring Seal for Airband Radios

Yaesu RA084400A O-Ring – Genuine Replacement Seal for FTA-550 / FTA-750 Airband Radios | Radioworld UK


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The Yaesu RA084400A O-Ring is a genuine OEM replacement part designed to maintain a perfect weather-tight seal between the BNC antenna connector assembly and the antenna base on Yaesu FTA-550 and FTA-750 series airband transceivers.

Manufactured to Yaesu’s precise engineering standards in Japan, this high-quality rubber O-ring ensures secure RF connection, moisture resistance, and long-term durability in all weather conditions.

Whether you’re performing maintenance, replacing worn or degraded components, or restoring an older FTA-series transceiver, this OEM Yaesu part guarantees the same fit and finish as the original factory component.

Key Features

  • Genuine Yaesu OEM replacement O-ring (Part No. RA084400A)

  • Provides weather-resistant seal for BNC antenna base assembly

  • Compatible with Yaesu FTA-550, FTA-550L, FTA-750, and FTA-750L transceivers

  • Maintains RF integrity and waterproof protection around antenna connector

  • Factory-specified part from Yaesu Musen, Japan

  • Supplied by Yaesu UK and available through Radioworld UK

  • In stock for immediate dispatch

Technical Specifications

SpecificationDetails
Part NumberRA084400A
TypeReplacement O-Ring / Seal
FunctionWaterproofing and sealing BNC antenna connector assembly
CompatibilityYaesu FTA-550, FTA-550L, FTA-750, FTA-750L airband radios
MaterialRubber (weather and RF resistant)
ManufacturerYaesu Musen Co. Ltd., Japan
DistributorYaesu UK

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