2661-12 Aeroquip Hydraulic Hose for Crane: Global Buyer's Guide 2026
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The 2661-12 Aeroquip hydraulic hose (P/N 2661-12) is a -12 dash size (3/4 in nominal ID) medium-pressure hydraulic hose used on crane boom, outrigger, and winch circuits. It is crimped with Aeroquip -12 fittings — typically JIC female swivel or 90° elbow ends — to form leak-resistant assemblies rated for high-pressure fluid power service.
What is a 2661-12 Aeroquip hydraulic hose?
A 2661-12 Aeroquip hydraulic hose is a -12 dash size (3/4 in ID) medium-pressure hydraulic hose from Aeroquip's 2661 series, designed for crane and mobile equipment fluid power circuits. It is terminated with Aeroquip crimp fittings — commonly JIC female swivel or 90° elbow ends — to create a permanent, leak-resistant assembly.
Aeroquip (now part of Danfoss) is one of the most widely specified hydraulic hose and fitting brands in mobile equipment. The 2661 series is a two-wire braid, medium-pressure hose family used across construction, agricultural, and crane applications where flexibility and pressure containment both matter.
How does a 2661-12 hose work in a crane hydraulic system?
The hose carries pressurized hydraulic fluid between the pump, control valve, and actuators (cylinders and motors) on the crane. The -12 dash size refers to the nominal bore: 12/16 in, or 3/4 in ID. The two-wire braid reinforcement contains the working pressure while allowing the flex needed for boom articulation and outrigger movement.
Each end is crimped with an Aeroquip fitting matched to the hose dash size and the port thread. On cranes, JIC 37° flare fittings are common because they seal reliably under vibration and are easy to field-service.
2661-12 hose and fitting specifications
The table below summarizes the key measurable attributes for the 2661-12 hose and the Aeroquip -12 fittings most often crimped to it. Values reflect standard Aeroquip 2661 series and -12 dash size conventions; always confirm against the current Aeroquip datasheet for your specific assembly.
| Attribute | Value | Notes |
|---|---|---|
| Hose dash size | -12 | Nominal 3/4 in ID |
| Nominal bore | 19.1 mm (3/4 in) | Standard -12 dash |
| Series | Aeroquip 2661 | Two-wire braid, medium pressure |
| Typical working pressure | 3,000 psi (207 bar) | Confirm per datasheet |
| Typical burst pressure | 12,000 psi (827 bar) | 4:1 safety factor |
| Fitting thread (JIC -12) | 1-1/16 in-12 UN | 37° flare, female swivel |
| Fitting material | Steel | Zinc-plated |
| Temperature range | -40 °C to +100 °C | Typical petroleum-based fluid |
| Fluid compatibility | Mineral hydraulic oil | ISO VG 32–68 typical |
Which Aeroquip -12 fittings pair with the 2661-12 hose?
Fitting selection is driven by port thread, routing angle, and hose dash size. For -12 hose, the most common Aeroquip crimp fittings are JIC female swivel straights and 90° elbows. The 90° elbow is used where the hose must turn sharply at the port — common on crane valve blocks and cylinder ports.
For example, AEROQUIP Steel 90° Elbow Crimp Hydraulic Hose Fitting, -12 JIC Female is designed for -12 hose with a 1-1/16 in-12 thread, making it a direct match for 2661-12 assemblies that need a right-angle connection. Straight JIC female swivel fittings are used where the hose can approach the port axially.
Types and applications across worldwide markets
Crane fleets worldwide — from port container handlers in Rotterdam and Singapore to rough-terrain cranes in the Middle East and mining cranes in Chile and Australia — rely on -12 dash hydraulic assemblies for boom, outrigger, and winch circuits. The 2661-12 hose is a common replacement item because these circuits see continuous pressure cycling and flex fatigue.
Related Aeroquip fittings cover other dash sizes so a single supplier can support a mixed fleet:
- AEROQUIP Steel 90° Elbow Hydraulic Hose Fitting, -8 JIC Female — for -8 dash (1/2 in) pilot and control lines.
- AEROQUIP Straight Hydraulic Crimp Fitting, -10 JIC Female Swivel — for -10 dash (5/8 in) return and medium-pressure lines.
- AEROQUIP Steel 90° Elbow Crimp Hydraulic Hose Fitting, -12 JIC Female — direct match for 2661-12 hose.
- AEROQUIP Steel 90° Elbow Crimp Hydraulic Hose Fitting, -16 JIC Female Swivel — for -16 dash (1 in) main pressure lines on larger cranes.
How to select the right 2661-12 hose assembly
- Confirm dash size. Verify the circuit requires -12 (3/4 in ID). Undersizing raises fluid velocity and heat; oversizing wastes space and adds weight.
- Match working pressure. Confirm the circuit's maximum pressure is within the hose's rated working pressure (typically 3,000 psi / 207 bar for 2661-12). Apply the 4:1 burst safety factor.
- Choose the fitting end. Select JIC female swivel for straight ports, 90° elbow for tight routing. Match thread to the port: -12 JIC uses 1-1/16 in-12 UN.
- Check fluid and temperature. Confirm compatibility with the system's hydraulic oil and the operating temperature range (-40 °C to +100 °C typical).
- Verify crimp compatibility. Use Aeroquip crimp tooling and dies matched to the hose series and fitting. Improper crimp is the leading cause of field failures.
- Plan for export. For worldwide delivery, confirm documentation, packaging, and any regional standards requirements before ordering.
Product comparison: Aeroquip crimp fittings by dash size
The ladder below moves from smaller dash sizes (lighter circuits) to larger dash sizes (main pressure lines). Use it to match the fitting to your hose and port.
| Product | Dash Size | Thread | Connection | Typical Use |
|---|---|---|---|---|
| AEROQUIP Steel 90° Elbow Hydraulic Hose Fitting, -8 JIC Female | -8 (1/2 in) | 3/4 in-16 UN | 90° elbow, JIC female x crimp | Pilot and control lines |
| AEROQUIP Straight Hydraulic Crimp Fitting, -10 JIC Female Swivel | -10 (5/8 in) | 7/8 in-14 UN | Straight, JIC female swivel x crimp | Return and medium-pressure lines |
| AEROQUIP Steel 90° Elbow Crimp Hydraulic Hose Fitting, -12 JIC Female | -12 (3/4 in) | 1-1/16 in-12 UN | 90° elbow, JIC female x crimp | 2661-12 crane circuits |
| AEROQUIP Steel 90° Elbow Crimp Hydraulic Hose Fitting, -16 JIC Female Swivel | -16 (1 in) | 1-5/16 in-12 UN | 90° elbow, JIC female swivel x crimp | Main pressure lines, large cranes |
Step up the ladder when circuit pressure, flow, or port size increases. A -12 assembly suits most crane boom and outrigger circuits; move to -16 when the main pressure line demands higher flow and the port is sized accordingly. Always match the fitting dash size to the hose dash size — mixing them is a common and costly error.
Why source 2661-12 hose and Aeroquip fittings from 3G Electric?
3G Electric stocks 266+ products across hydraulic, pneumatic, electrical, and fluid power categories, backed by 35+ years of industrial supply experience. We interpret your demand — dash size, thread, pressure rating, routing — and deliver the right Aeroquip hose and fittings, not just a catalog number.
We supply worldwide with export documentation experience, incoterms-neutral terms, and technical support for sizing and crimp compatibility. Our specialist depth in pumps, combustion, and controls means we understand the systems your hydraulic assemblies sit inside — from crane power packs to burner fuel trains.
According to the Aeroquip (Danfoss) hydraulic hose and fitting catalog: "Hose assemblies must be crimped with the specified Aeroquip crimp tooling and dies for the hose series and fitting to achieve rated working pressure."
Frequently asked questions
What is the 2661-12 Aeroquip hose used for?
The 2661-12 Aeroquip hose is a -12 dash (3/4 in ID) medium-pressure hydraulic hose used on crane boom, outrigger, and winch circuits. It carries pressurized fluid between pump, valve, and actuators, and is crimped with Aeroquip -12 fittings such as JIC female swivels.
What thread size does a -12 JIC fitting use?
A -12 JIC 37° flare fitting uses a 1-1/16 in-12 UN thread. This matches the -12 dash hose size and is the standard connection for 2661-12 assemblies on crane hydraulic ports.
Can I use a -10 fitting on a -12 hose?
No. Fitting dash size must match hose dash size. A -10 fitting on -12 hose will not crimp correctly and will not hold rated pressure. Always pair -12 hose with -12 fittings.
How do I get a quote for 2661-12 hose in my region?
Contact 3G Electric with your dash size, fitting ends, thread, quantity, and destination. We supply worldwide with export documentation and can quote in USD on incoterms-neutral terms. Lead time depends on stock and destination.
What is the working pressure of a 2661-12 hose?
The Aeroquip 2661 series -12 hose is typically rated to 3,000 psi (207 bar) working pressure with a 4:1 burst safety factor. Always confirm against the current Aeroquip datasheet for your specific assembly and application.
Do you supply outside North America?
Yes. 3G Electric supplies worldwide, including Europe, the Middle East, Asia-Pacific, Africa, and Latin America. We handle export documentation and can advise on regional standards and packaging requirements for hydraulic hose assemblies.
Key takeaways
- The 2661-12 Aeroquip hose is a -12 dash (3/4 in ID) medium-pressure hose for crane hydraulic circuits, typically rated to 3,000 psi (207 bar).
- Match fitting dash size to hose dash size — -12 hose uses -12 fittings with 1-1/16 in-12 UN JIC threads.
- Use 90° elbow fittings for tight routing and straight JIC female swivels for axial ports.
- Crimp with Aeroquip tooling and dies matched to the hose series and fitting to achieve rated pressure.
- 3G Electric stocks 266+ related products and supplies worldwide with export documentation and technical support.
Ready to source? Contact 3G Electric for a quote on 2661-12 Aeroquip hose and compatible -12 crimp fittings. Our team provides sizing assistance, crimp compatibility checks, and worldwide delivery with export documentation.
