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18MK-18MK STRAIGHT KOMATSU UNION

Description & Features

Designed for metric hydraulic connections in Komatsu-compatible systems, the 18MK-18MK Straight Komatsu Union joins two M18x1.5 male Komatsu threads in a straight configuration. Both ends feature a metric thread with 30-degree flare, ensuring a secure, leak-resistant connection suited to demanding hydraulic service.

Manufactured by Brennan Industries from straight steel, this union is part of the Brennan 9099 series. It is intended for use in hydraulic lines where same-size Komatsu fittings are required on both ends. California residents should note this product is subject to a Proposition 65 warning.

SKU: 9099-18-18

Supplier Part Number (MPN): 9099-18-18

Specifications

Connection Size 1 18 mm	Connection Size 2 18 mm	Connection Type Male Komatsu	Connection Type 1 Male Komatsu	Connection Type 2 Male Komatsu	Finish Zinc Trivalent	Fitting Type Union	Hex Size 3/4 in	Material Steel	Material Construction 12L14/C1045 Steel	Maximum Operating Pressure 4000 psi	Series 9099 Series	Thread Size M18x1.5

Product Questions & Answers (1)

Question by: Hubert D on Sep 13, 2025, 5:20 PM

Will this union work with standard metric fittings, or is it Komatsu-specific?

Answer by: Customer Support on Sep 15, 2025, 6:07 AM

Designed specifically for Komatsu-compatible systems, this union joins two M18x1.5 male Komatsu threads in a straight configuration. It is not intended for use with standard metric fittings.

18MK-18MK STRAIGHT KOMATSU UNION

Description & Features

Specifications

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Product Questions & Answers (1)