Product Description
TL34 3/8" NPT Thread Hydraulic Quick Connect Coupler Set (3/8" Body, ISO 5675)
The TL34 is an industrial-strength, poppet-style hydraulic coupler set designed for reliable performance in agricultural and compact machinery applications. Engineered to meet and exceed ISO 5675 standards, this 3/8" body coupler provides a secure, high-pressure connection compatible with a wide variety of tractors, skid steers, and implement attachments.
🗸 Heavy-Duty Industrial Rating: Built for durability in rugged conditions, these couplers are rated for over 4,400 PSI to handle demanding hydraulic tasks.
🗸 Universal Ag-Style Compatibility: Designed to interface seamlessly with any standard 3/8" body Ag-style (poppet) hydraulic port, making it a direct fit for equipment from major brands including Bobcat, John Deere, CAT, Kubota, New Holland, CASE, and more.
🗸 Precision Locking Mechanism: Features a push-connect locking sleeve with heavy knurling for a secure, non-slip grip, allowing for efficient connection and disconnection even when wearing heavy safety gloves.
🗸 Corrosion Resistance: Finished with trivalent zinc plating to provide a long-lasting barrier against rust, moisture, and environmental exposure.
Specifications
| Detail | Specification |
| Model Number | TL34 |
| Coupler Body Size | 3/8" |
| Coupler Thread Size | 3/8" NPT |
| Thread Inner Diameter | 0.63" |
| Thread Dash Number | -06 |
| Coupler Material Type | Steel |
| Plating Type | Corrosion-resistant trivalent zinc |
| Package Includes | (1) Male Ag-Style Coupler, (1) Female Ag-Style Coupler |
Q: Are these "Flat Face" or "Poppet" style couplers?
A: These are AG-Style Poppet (Ball-Detent) couplers (ISO 5675). They utilize a spring-loaded poppet valve and are distinct from ISO 16028 Flat Face designs. These are the industry standard for traditional agricultural tractors and many compact attachments.
Q: Can these be used on a Flat Face (ISO 16028) system?
A: No. Ag-Style (ISO 5675) and Flat Face (ISO 16028) couplers are not interchangeable. You must verify that your machine’s existing ports match the Ag-style poppet interface.
Q: Why is the 3/8" body size used?
A: A 3/8" body size is commonly used for auxiliary hydraulic lines, pilot controls, and smaller implements on tractors and skid steers. It is crucial to match the body size of your coupler to your machine's port, as an incorrect size will not seal properly or allow for fluid flow.
Q: How do I know if this fits my equipment?
A: The TL34 is designed for universal compatibility with ISO 5675 poppet-style ports. If your equipment has a spring-loaded "button" or ball-valve visible in the center of the port, it is an Ag-style system, and the TL34 is likely the correct replacement.



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Return Policy: If you are not fully satisfied with your purchase, you may return unused item for a full refund of the purchase price, excluding shipping charges, within 60 days of purchase date.
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