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Ships within 48 hours · Estimated delivery Jun 19 - Jun 24
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Description
Parker Rectus 1/4" BSPP Female Coupling 51SFIW13SXN1 4" BSP Parallel Female Plug, Series 51KB, Standard, Pneumatic Quick Release, Non Valved, Brass Nickel Plated, Working Temperature 20C to +100C, Maximum Working Pressure 50 bar, Parker Rectus Interchangeability: Rectus Design. Material: Brass Nickel Plated. Application: Robust Steel Coupling for Compressed Air.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 302 reviews
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Product Reviews
★★★★★ 5
Amazon makes it so easy
Perfect fit, exact replacement part.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Reliable and well priced
Works very well in my Cub Cadet XT1
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Installed them works good.
Value for the money.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Good Plug if you need this model
These are the OEM for Kohler 7000 series I did service on. They needed to be gapped but that’s every spark plug.
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Reviewed in the United States on May 19, 2026
★★★★★ 4
Plugs
They are sparkling plugs. They spark.
Very slow on delivery.
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Reviewed in the United States on March 30, 2026
