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Hydraulic Quick Couplers

Hydraulic quick couplers join high-pressure fluid lines with a secure, leak-free connection. This collection covers ISO-B, ISO-A, flush face, and specialty hydraulic couplers and plugs in steel, brass, and stainless. Filter by series, body size, thread, and material to match your hydraulic system.

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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 18% Save %
$ 38.00
$ 38.00 - $ 38.00
$ 38.00
$ 31.00
$ 31.00 - $ 31.00
$ 31.00

Foster A16DC-DP, 1" ISO-A Dust Cap & Plug Combo, 6600 Series, Steel

Keeps dirt and debris out of disconnected ISO-A hydraulic couplings. The Foster A16DC-DP is a steel dust cap and plug set sized for 1" ISO 7241-1 S...

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$ 38.00
$ 38.00 - $ 38.00
$ 38.00
$ 31.00
$ 31.00 - $ 31.00
$ 31.00
Save 18% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 309.00
$ 309.00 - $ 309.00
$ 309.00
$ 248.00
$ 248.00 - $ 248.00
$ 248.00

Foster A04DC-DP, 1/4" ISO-A Dust Cap & Plug Combo, 6600 Series, Steel

Keeps dirt and debris out of disconnected ISO-A hydraulic couplings. The Foster A04DC-DP is a steel dust cap and plug set sized for 1/4" ISO 7241-1...

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$ 309.00
$ 309.00 - $ 309.00
$ 309.00
$ 248.00
$ 248.00 - $ 248.00
$ 248.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 944.00
$ 944.00 - $ 944.00
$ 944.00
$ 755.00
$ 755.00 - $ 755.00
$ 755.00

Foster K8SLV, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8SLV is a steel 1" plug in the FHK Serie...

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$ 944.00
$ 944.00 - $ 944.00
$ 944.00
$ 755.00
$ 755.00 - $ 755.00
$ 755.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 1,205.00
$ 1,205.00 - $ 1,205.00
$ 1,205.00
$ 963.00
$ 963.00 - $ 963.00
$ 963.00

Foster K8S16, 1" ISO-B Hydraulic Plug x 15/16"-12 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S16 is a steel 1" plug in the FHK Serie...

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$ 1,205.00
$ 1,205.00 - $ 1,205.00
$ 1,205.00
$ 963.00
$ 963.00 - $ 963.00
$ 963.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 1,192.00
$ 1,192.00 - $ 1,192.00
$ 1,192.00
$ 953.00
$ 953.00 - $ 953.00
$ 953.00

Foster K8S-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S-101 is a steel 1" plug in the FHK Ser...

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$ 1,192.00
$ 1,192.00 - $ 1,192.00
$ 1,192.00
$ 953.00
$ 953.00 - $ 953.00
$ 953.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 3,742.00
$ 3,742.00 - $ 3,742.00
$ 3,742.00
$ 2,995.00
$ 2,995.00 - $ 2,995.00
$ 2,995.00

Foster K8S/S-103, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S/S-103 is a 303 stainless 1" plug in t...

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$ 3,742.00
$ 3,742.00 - $ 3,742.00
$ 3,742.00
$ 2,995.00
$ 2,995.00 - $ 2,995.00
$ 2,995.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 3,813.00
$ 3,813.00 - $ 3,813.00
$ 3,813.00
$ 3,050.00
$ 3,050.00 - $ 3,050.00
$ 3,050.00

Foster K8S/S-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S/S-101 is a 303 stainless 1" plug in t...

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$ 3,813.00
$ 3,813.00 - $ 3,813.00
$ 3,813.00
$ 3,050.00
$ 3,050.00 - $ 3,050.00
$ 3,050.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 3,565.00
$ 3,565.00 - $ 3,565.00
$ 3,565.00
$ 2,852.00
$ 2,852.00 - $ 2,852.00
$ 2,852.00

Foster K8S/S, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S/S is a 303 stainless 1" plug in the F...

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$ 3,565.00
$ 3,565.00 - $ 3,565.00
$ 3,565.00
$ 2,852.00
$ 2,852.00 - $ 2,852.00
$ 2,852.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 944.00
$ 944.00 - $ 944.00
$ 944.00
$ 755.00
$ 755.00 - $ 755.00
$ 755.00

Foster K8S, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S is a steel 1" plug in the FHK Series,...

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$ 944.00
$ 944.00 - $ 944.00
$ 944.00
$ 755.00
$ 755.00 - $ 755.00
$ 755.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 1,539.00
$ 1,539.00 - $ 1,539.00
$ 1,539.00
$ 1,230.00
$ 1,230.00 - $ 1,230.00
$ 1,230.00

Foster K8B-103, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B-103 is a brass 1" plug in the FHK Ser...

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$ 1,539.00
$ 1,539.00 - $ 1,539.00
$ 1,539.00
$ 1,230.00
$ 1,230.00 - $ 1,230.00
$ 1,230.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 1,562.00
$ 1,562.00 - $ 1,562.00
$ 1,562.00
$ 1,249.00
$ 1,249.00 - $ 1,249.00
$ 1,249.00

Foster K8B-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B-101 is a brass 1" plug in the FHK Ser...

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$ 1,562.00
$ 1,562.00 - $ 1,562.00
$ 1,562.00
$ 1,249.00
$ 1,249.00 - $ 1,249.00
$ 1,249.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 1,245.00
$ 1,245.00 - $ 1,245.00
$ 1,245.00
$ 995.00
$ 995.00 - $ 995.00
$ 995.00

Foster K8B, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B is a brass 1" plug in the FHK Series,...

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$ 1,245.00
$ 1,245.00 - $ 1,245.00
$ 1,245.00
$ 995.00
$ 995.00 - $ 995.00
$ 995.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 643.00
$ 643.00 - $ 643.00
$ 643.00
$ 515.00
$ 515.00 - $ 515.00
$ 515.00

Foster K6SLV, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6SLV is a steel 3/4" plug in the FHK Ser...

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$ 643.00
$ 643.00 - $ 643.00
$ 643.00
$ 515.00
$ 515.00 - $ 515.00
$ 515.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 801.00
$ 801.00 - $ 801.00
$ 801.00
$ 641.00
$ 641.00 - $ 641.00
$ 641.00

Foster K6S12, 3/4" ISO-B Hydraulic Plug x 1-1/16"-12 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S12 is a steel 3/4" plug in the FHK Ser...

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$ 801.00
$ 801.00 - $ 801.00
$ 801.00
$ 641.00
$ 641.00 - $ 641.00
$ 641.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00

Foster K6S-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S-103 is a steel 3/4" plug in the FHK S...

View full details
$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 769.00
$ 769.00 - $ 769.00
$ 769.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00

Foster K6S-102, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S-102 is a steel 3/4" plug in the FHK S...

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$ 769.00
$ 769.00 - $ 769.00
$ 769.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 784.00
$ 784.00 - $ 784.00
$ 784.00
$ 627.00
$ 627.00 - $ 627.00
$ 627.00

Foster K6S-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S-101 is a steel 3/4" plug in the FHK S...

View full details
$ 784.00
$ 784.00 - $ 784.00
$ 784.00
$ 627.00
$ 627.00 - $ 627.00
$ 627.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 2,082.00
$ 2,082.00 - $ 2,082.00
$ 2,082.00
$ 1,665.00
$ 1,665.00 - $ 1,665.00
$ 1,665.00

Foster K6S/SLV, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Less Valve, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/SLV is a 303 stainless 3/4" plug in t...

View full details
$ 2,082.00
$ 2,082.00 - $ 2,082.00
$ 2,082.00
$ 1,665.00
$ 1,665.00 - $ 1,665.00
$ 1,665.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 2,219.00
$ 2,219.00 - $ 2,219.00
$ 2,219.00
$ 1,777.00
$ 1,777.00 - $ 1,777.00
$ 1,777.00

Foster K6S/S-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/S-103 is a 303 stainless 3/4" plug in...

View full details
$ 2,219.00
$ 2,219.00 - $ 2,219.00
$ 2,219.00
$ 1,777.00
$ 1,777.00 - $ 1,777.00
$ 1,777.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 2,191.00
$ 2,191.00 - $ 2,191.00
$ 2,191.00
$ 1,752.00
$ 1,752.00 - $ 1,752.00
$ 1,752.00

Foster K6S/S-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/S-101 is a 303 stainless 3/4" plug in...

View full details
$ 2,191.00
$ 2,191.00 - $ 2,191.00
$ 2,191.00
$ 1,752.00
$ 1,752.00 - $ 1,752.00
$ 1,752.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 2,042.00
$ 2,042.00 - $ 2,042.00
$ 2,042.00
$ 1,634.00
$ 1,634.00 - $ 1,634.00
$ 1,634.00

Foster K6S/S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/S is a 303 stainless 3/4" plug in the...

View full details
$ 2,042.00
$ 2,042.00 - $ 2,042.00
$ 2,042.00
$ 1,634.00
$ 1,634.00 - $ 1,634.00
$ 1,634.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 713.00
$ 713.00 - $ 713.00
$ 713.00
$ 570.00
$ 570.00 - $ 570.00
$ 570.00

Foster K6S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S is a steel 3/4" plug in the FHK Serie...

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$ 713.00
$ 713.00 - $ 713.00
$ 713.00
$ 570.00
$ 570.00 - $ 570.00
$ 570.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 940.00
$ 940.00 - $ 940.00
$ 940.00
$ 751.00
$ 751.00 - $ 751.00
$ 751.00

Foster K6B-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6B-103 is a brass 3/4" plug in the FHK S...

View full details
$ 940.00
$ 940.00 - $ 940.00
$ 940.00
$ 751.00
$ 751.00 - $ 751.00
$ 751.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 993.00
$ 993.00 - $ 993.00
$ 993.00
$ 795.00
$ 795.00 - $ 795.00
$ 795.00

Foster K6B-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6B-101 is a brass 3/4" plug in the FHK S...

View full details
$ 993.00
$ 993.00 - $ 993.00
$ 993.00
$ 795.00
$ 795.00 - $ 795.00
$ 795.00
Save 20% Save %

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