Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass

Breco B-6659-12, 3/4" ISO-A Dust Plug, 6600 Series, Steel

Name: Breco B-6659-12, 3/4" ISO-A Dust Plug, 6600 Series, Steel
Brand: Breco
SKU: BRCO B-6659-12 (1)
Price: 349.0 MXN
Availability: InStock

by Breco

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$ 436.00

$ 436.00 - $ 436.00

$ 436.00

$ 349.00

$ 349.00 - $ 349.00

$ 349.00

Quick Specs

Brand	Breco
Series	ISO-A
Type	Accessory
Body Size	3/4"
Material	Steel
System	Hydraulic

Performance & Construction

Interface	Conforms with ISO 7241-1, Series A
Fits Body Size	3/4" ISO-A couplings
Type	Dust Plug
Temperature Range	-10F to +250F (standard seals)
Construction	Steel
Quantity	1 pc
Origin	Made in USA

Product Details

Keeps dirt and debris out of disconnected ISO-A hydraulic couplings. The Breco B-6659-12 is a steel dust plug sized for 3/4" ISO 7241-1 Series A couplings. (Also known as the 6600 Series.)

Why this dust plug

Keeps contamination out — seals the disconnected half against dirt, grit, and moisture.
Sized to the 3/4" body — a correct fit on ISO-A 6600 Series couplings.
Steel construction — stands up to jobsite handling.

Frequently asked questions

Are these ISO-A couplers?
Yes — the 6600 Series conforms to ISO 7241-1, Series A. It mates with any Series A half of the same body size, from any manufacturer.

What does it fit?
Any ISO-A 3/4" coupler. The matching part is B-6601-12-12.

Why use a dust cap or plug?
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.

ISO-A Series (ISO 7241-1 Series A) — 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
3/4" Body — Your Size
B‑6601‑12‑12	Breco	B‑6602‑12‑10	A12DC‑DP (For Coupler or Plug) B‑6657‑12 (For Coupler) B‑6659‑12 (For Plug)	3/4"	3/4"	Steel
B‑6608‑12‑12	Breco	B‑6602‑12‑10	A12DC‑DP (For Coupler or Plug) B‑6657‑12 (For Coupler) B‑6659‑12 (For Plug)	3/4"	3/4"	Steel
1/4" Body
B‑6601‑4‑4	Breco	B‑6602‑4‑4	A04DC‑DP (For Coupler or Plug)	1/4"	1/4"	Steel
3/8" Body
B‑6601‑6‑6	Breco	B‑6602‑6‑6	—	3/8"	3/8"	Steel
1/2" Body
B‑6601‑8‑10	Breco	B‑6602‑8‑10	B‑6657‑10 (For Coupler)	1/2"	1/2"	Steel
B‑6608‑8‑10	Breco	B‑6602‑8‑10	B‑6657‑10 (For Coupler)	1/2"	1/2"	Steel
1" Body
B‑6601‑16‑16	Breco	B‑6602‑16‑16	A16DC‑DP (For Coupler or Plug) B‑6657‑16 (For Coupler) B‑6659‑16 (For Plug)	1"	1"	Steel
B‑6608‑16‑16	Breco	B‑6602‑16‑16	A16DC‑DP (For Coupler or Plug) B‑6657‑16 (For Coupler) B‑6659‑16 (For Plug)	1"	1"	Steel