Skip to content
☀️ Take an Additional 10% Off Your Entire Order with code PROGRADE10 at checkout.
☀️ Additional 10% Off • PROGRADE10

Breco B-5205-6, 1" Pioneer AG 4000 Series Dust Plug, Agricultural, Rubber

by Breco
Save 20% Save 20%
Original price $ 829.00
Original price $ 829.00 - Original price $ 829.00
Original price $ 829.00
Current price $ 664.00
$ 664.00 - $ 664.00
Current price $ 664.00
Request a Quote (Bulk & Dealer Orders)

Quick Specs

BrandBreco
Series4000
TypeAccessory
Body Size1"
MaterialRubber
SystemHydraulic
ApplicationAgricultural
InterchangePioneer AG

Performance & Construction

Fits Body Size 1" Breco 4000 Series
Type Dust Plug
Material Rubber
Temperature Range -40F to +250F (standard seals)
Quantity 1 pc
Origin Made in USA

Product Details

Keeps dirt and debris out of disconnected Pioneer-style AG hydraulic couplings. The Breco B-5205-6 is a rubber dust plug that seals the coupler opening on 1" Breco 4000 Series couplings between uses. (Also known as the 4000 Series.)

Why this dust plug

  • Keeps contamination out — seals the disconnected half against dirt, grit, and moisture.
  • Sized to the 1" body — a correct fit on Breco 4000 Series couplers.
  • Flexible rubber — installs and removes by hand, no tools needed.

Frequently asked questions

Are these Pioneer / agricultural couplers?
Yes — these are the Pioneer-style AG couplers (Foster/Breco call them the 4000 Series) used on tractors, farm implements, and construction equipment. They interchange with the Pioneer 4000 ball-valve design.

What does it fit?
It seals the 1" Breco 4000 Series coupler, for example B-4050-6.

Why use a dust plug or cap?
Contamination is the leading cause of hydraulic failure. Capping disconnected halves keeps grit out of the valve and seal.

Why buy from hpcouplers: Breco quality, responsive US-based support, accurate specs, fast shipping.

4000 Series (Pioneer AG Interchange) — Complete Series Chart

The size you are viewing is shown first, with the rest of the series below. Base couplings appear before ball lock and seal options. Dust caps and plugs fit by body size and are labeled by which half they protect. Click any part number to open that product.

Coupler Brand Plug Dust
Cap/Plug
Body
Size
Thread Description
1" Body — Your Size
B‑4050‑6 Breco B‑4010‑6 B‑5209‑6 (For Coupler)
B‑5205‑6 (For Plug)
1" 1" Steel
B‑4050‑6P Breco B‑4010‑6 B‑5209‑6 (For Coupler)
B‑5205‑6 (For Plug)
1" 1" Steel, Poppet Valve
1/4" Body
B‑4050‑2 Breco B‑4010‑2 B‑5205‑2M (For Plug) 1/4" 1/4" Steel
B‑4050‑2P Breco B‑4010‑2 B‑5205‑2M (For Plug) 1/4" 1/4" Steel, Poppet Valve
3/8" Body
B‑4050‑3 Breco B‑4010‑3 B‑5205‑3 (For Plug) 3/8" 3/8" Steel
B‑4050‑3P Breco B‑4010‑3 B‑5205‑3 (For Plug) 3/8" 3/8" Steel, Poppet Valve
1/2" Body
B‑4050‑15 Breco B‑8010‑5 B‑5209‑4M (For Coupler)
B‑5205‑4M (For Plug)
1/2" 1/2" Steel
B‑4050‑16 Breco B‑8010‑5 B‑5209‑4M (For Coupler)
B‑5205‑4M (For Plug)
1/2" 1/2" Steel
B‑4050‑4 Breco B‑8010‑4 B‑5209‑4M (For Coupler)
B‑5205‑4M (For Plug)
1/2" 1/2" Steel
B‑4050‑4P Breco B‑8010‑4 B‑5209‑4M (For Coupler)
B‑5205‑4M (For Plug)
1/2" 1/2" Steel, Poppet Valve
B‑4050‑5 Breco B‑8010‑5 B‑5209‑4M (For Coupler)
B‑5205‑4M (For Plug)
1/2" 1/2" Steel
3/4" Body
B‑4150‑5 Breco B‑8010‑5 B‑5209‑5 (For Coupler)
B‑5205‑5 (For Plug)
3/4" 3/4" Steel
BRECO

A Foster product line by ZSI-Foster. USA made quick disconnects, blow guns, and hose fittings, stocked and shipped by hpcouplers.

Shop All Breco