ADAPTER

Description & Features

Constructed from forged steel, this three-port tee adapter connects two 3/4-16 Male JIC SAE 37° Flare ports to a single 1-1/16-12 Male JIC SAE 37° Flare port, making it suited for branching hydraulic lines where different port sizes must be joined at a single fitting. All three threads conform to SAE J514, ensuring compatibility with standard JIC hydraulic components.

The Brennan Industries 2603-FG Series adapter is rated for dynamic pressures up to 5,000 PSI. Forged steel construction provides the structural integrity expected in demanding hydraulic applications. With an overall length of 2.840 mm across the main axis and a compact footprint, this adapter fits where space is a consideration without compromising pressure capacity. California residents should note that this product is subject to Prop 65 warnings.

SKU: 2603-08-08-12-FG

Supplier Part Number (MPN): 2603-08-08-12-FG

Specifications

Connection Size 1
1/2 in
Connection Size 2
1/2 in
Connection Size 3
3/4 in
Connection Type
Male JIC
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male SAE 37 deg JIC Flare
Connection Type 3
Male SAE 37 deg JIC Flare
Cubic Inch Space L x W x H Dimensions
6.608 cu-in
Dimension Standards
SAE J514
Dimensions
2.84 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Tee
Hex Size
1.06 in
l2 Dimensions
1.66 in
l Dimensions
2.84 in
Material
Steel
Material Construction
AISI C1045 Steel
Maximum Operating Pressure
5000 psi
Series
2603-FG Series
Thread 2 Drill Dimensions
0.391 in
Thread 3 Drill Dimensions
0.609 in
Thread B1 Drill Dimensions
0.391 in
Thread Size
3/4-16 x 1-1/16-12

Product Questions & Answers (1)

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Question by: Gary H on Aug 27, 2025, 8:00 PM
Reckon this'd work okay for connectin' up different size lines on my backhoe?
Answer by: Customer Support on Aug 29, 2025, 5:48 PM
This adapter connects two 3/4-16 Male JIC SAE 37° Flare ports to a single 1-1/16-12 Male JIC SAE 37° Flare port, so it's intended for branching hydraulic lines where the port sizes need to change at the fitting.

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