We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

AEROQUIP Hydraulic Quick Connect Dust Cap: Vinyl, 1/4 in Fitting Size - Hydraulic Hose Caps
AEROQUIPHydraulic Hose Caps

AEROQUIP Hydraulic Quick Connect Dust Cap: Vinyl, 1/4 in Fitting Size

The AEROQUIP Hydraulic Quick Connect Dust Cap (MPN 5657-4) is a push-on vinyl cap designed for 1/4 in fitting sizes. It protects quick-connect couplings from dirt and debris, extending equipment life.

SKU 3G-OTH-647419

Also listed as: 56574 · 5657 4

Brand
AEROQUIP
Item
Hydraulic Quick Connect Dust Cap: Vinyl, 1/4 in Fitting Size
Category
Hydraulic Hose Caps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

AEROQUIP
Manufacturer Part Number
5657-4
Type
Push On
Material
Vinyl
Fitting Size
1/4 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

AEROQUIP Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The AEROQUIP Hydraulic Quick Connect Dust Cap (MPN 5657-4) is a push-on vinyl cap designed for 1/4 in fitting sizes. It protects quick-connect couplings from dirt and debris, extending equipment life.

Frequently Asked Questions

What is the AEROQUIP 5657-4 hydraulic dust cap used for?

The AEROQUIP 5657-4 hydraulic dust cap protects quick-connect couplings from dirt, debris, and moisture. It is a push-on vinyl cap for 1/4 in fitting sizes, commonly used in hydraulic systems to extend equipment life and prevent contamination.

What are the specifications of the AEROQUIP 5657-4 dust cap?

The AEROQUIP 5657-4 dust cap is a push-on type made of vinyl, with a fitting size of 1/4 in. It is designed for hydraulic quick-connect couplings and is identified by manufacturer part number 5657-4.

Where to buy AEROQUIP 5657-4 dust caps worldwide?

3G Electric supplies the AEROQUIP 5657-4 dust cap worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us to order this vinyl push-on cap for 1/4 in fittings.

How to install the AEROQUIP 5657-4 push-on dust cap?

To install the AEROQUIP 5657-4 dust cap, simply push it firmly onto the 1/4 in quick-connect coupling until it seats securely. Ensure the coupling is clean and dry before installation to maintain a proper seal against contaminants.

Used in

Common applications for AEROQUIP
Mobile hydraulic equipment repair — Aeroquip 45° elbow flange fittings (e.g., 1A12FLA10) for hose replacement on excavators and loaders.
Industrial hydraulic power units — Aeroquip 90° elbow flange fittings (e.g., 4S20FLB20) for connecting pumps to manifold blocks.
In-house hose assembly shops — Aeroquip die packages (e.g., ET4020TP-0002) for crimping 1-wire braid hoses up to 1 1/4 in diameter.
Oil and gas field equipment — Aeroquip carbon steel flange fittings (e.g., 1A24FLA20) for high-pressure fluid transfer lines.
Hydraulic press maintenance — Aeroquip die cage assemblies (e.g., FT1382-200-M465) for crimping 4-spiral hoses on heavy-duty presses.
Agricultural machinery servicing — Aeroquip 45° elbow fittings (e.g., 1A12FLA12) for replacing hoses on tractors and harvesters.

AEROQUIP Products

3G Electric supplies AEROQUIP hydraulic hose caps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from AEROQUIP

View all AEROQUIP parts
Hydraulic Hose Cap: Steel, 7/8 in Fitting Size, Female, 2,500 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-14S)
AEROQUIP
Hydraulic Hose Cap: Steel, 7/8 in Fitting Size, Female, 2,500 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-14S)
Hydraulic Hose Cap: Steel, 1 1/4 in Fitting Size, Female, 3,500 psi Max. Working Pressure @ 70 F (MPN 210292-20S)
AEROQUIP
Hydraulic Hose Cap: Steel, 1 1/4 in Fitting Size, Female, 3,500 psi Max. Working Pressure @ 70 F (MPN 210292-20S)
Hydraulic Hose Cap: Steel, 1 1/2 in Fitting Size, Female, 2,000 psi Max. Working Pressure @ 70 F (MPN 210292-24S)
AEROQUIP
Hydraulic Hose Cap: Steel, 1 1/2 in Fitting Size, Female, 2,000 psi Max. Working Pressure @ 70 F (MPN 210292-24S)
Hydraulic Hose Cap: Steel, 2 in Fitting Size, Female, 1,250 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-32S)
AEROQUIP
Hydraulic Hose Cap: Steel, 2 in Fitting Size, Female, 1,250 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-32S)
Hydraulic Hose Cap: Steel, 3/4 in Fitting Size, Female, 3,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-12S)
AEROQUIP
Hydraulic Hose Cap: Steel, 3/4 in Fitting Size, Female, 3,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-12S)
Hydraulic Hose Cap: Steel, 1 in Fitting Size, Female, 3,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-16S)
AEROQUIP
Hydraulic Hose Cap: Steel, 1 in Fitting Size, Female, 3,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-16S)
Hydraulic Hose Cap: Steel, 3/8 in Fitting Size, Female, 4,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-6S)
AEROQUIP
Hydraulic Hose Cap: Steel, 3/8 in Fitting Size, Female, 4,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-6S)
Hydraulic Hose Cap: Steel, 1/4 in Fitting Size, Female, 5,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-4S)
AEROQUIP
Hydraulic Hose Cap: Steel, 1/4 in Fitting Size, Female, 5,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-4S)