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

3G Electric
RFQ CartGet a QuoteSign inSign up
AEROQUIP Hydraulic Quick Connect Dust Cap: Vinyl, 3/8 in Fitting Size - Hydraulic Hose Caps
AEROQUIPHydraulic Hose Caps

AEROQUIP Hydraulic Quick Connect Dust Cap: Vinyl, 3/8 in Fitting Size

The AEROQUIP Hydraulic Quick Connect Dust Cap (MPN 5657-6) is a push-on vinyl cap with a 3/8 in fitting size, designed to protect hydraulic quick-connect couplings from dirt and debris. 3G Electric interprets this…

SKU 3G-OTH-647421

Brand
AEROQUIP
Item
Hydraulic Quick Connect Dust Cap: Vinyl, 3/8 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

Technical Specifications

AEROQUIP
Manufacturer Part Number
5657-6
Type
Push On
Material
Vinyl
Fitting Size
3/8 in
View Full Spec Sheet

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 5657-6) is a push-on vinyl cap with a 3/8 in fitting size, designed to protect hydraulic quick-connect couplings from dirt and debris. 3G Electric interprets this demand and sources the genuine part across 14 industrial departments — with specialist depth in pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the AEROQUIP 5657-6 hydraulic quick connect dust cap used for?

The AEROQUIP 5657-6 dust cap protects hydraulic quick-connect couplings from dirt, moisture, and debris. It is used in industrial hydraulic systems across machining, material handling, and mobile equipment to extend coupling life and prevent contamination.

What are the specifications of the AEROQUIP 5657-6 dust cap?

The AEROQUIP 5657-6 is a push-on vinyl dust cap with a 3/8 in fitting size. It is designed for hydraulic quick-connect couplings and is made from durable vinyl material. The manufacturer part number is 5657-6.

Where to buy the AEROQUIP 5657-6 dust cap worldwide?

3G Electric supplies the genuine AEROQUIP 5657-6 dust cap worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time — we source across 14 industrial departments with specialist depth in pumps and controls.

How to install the AEROQUIP 5657-6 push-on dust cap?

Simply push the AEROQUIP 5657-6 vinyl cap firmly onto the 3/8 in quick-connect coupling until it seats securely. No tools are required. Ensure the coupling surface 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 Adapter: Carbon Steel, 3/4 in Fitting Size, Female, ORS (MPN FC1851-12S). Key specifications — Fitting Gender: Female; Material: Carbon Steel.
AEROQUIP
Hydraulic Hose Adapter: Carbon Steel, 3/4 in Fitting Size, Female, ORS (MPN FC1851-12S). Key specifications — Fitting Gender: Female; Material: Carbon Steel.
Hydraulic Hose Cap: Steel, 7/8 in Fitting Size, Female, 2,500 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-14S). Key specifications — Fitting Gender: Female; Material: Steel.
AEROQUIP
Hydraulic Hose Cap: Steel, 7/8 in Fitting Size, Female, 2,500 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-14S). Key specifications — Fitting Gender: Female; Material: Steel.
Hydraulic Hose Adapter: Carbon Steel, 1/4 in Fitting Size, Female, ORS (MPN FC1851-04S). Key specifications — Fitting Gender: Female; Material: Carbon Steel.
AEROQUIP
Hydraulic Hose Adapter: Carbon Steel, 1/4 in Fitting Size, Female, ORS (MPN FC1851-04S). Key specifications — Fitting Gender: Female; Material: Carbon Steel.
Hydraulic Hose Cap: Steel, 1 1/4 in Fitting Size, Female, 3,500 psi Max. Working Pressure @ 70 F (MPN 210292-20S). Key specifications — Fitting Gender: Female; Material: Steel.
AEROQUIP
Hydraulic Hose Cap: Steel, 1 1/4 in Fitting Size, Female, 3,500 psi Max. Working Pressure @ 70 F (MPN 210292-20S). Key specifications — Fitting Gender: Female; Material: Steel.
Hydraulic Hose Adapter: Carbon Steel, 5/8 in Fitting Size, Female, ORS (MPN FC1851-10S). Key specifications — Fitting Gender: Female; Material: Carbon Steel.
AEROQUIP
Hydraulic Hose Adapter: Carbon Steel, 5/8 in Fitting Size, Female, ORS (MPN FC1851-10S). Key specifications — Fitting Gender: Female; Material: Carbon Steel.
Hydraulic Hose Cap: Steel, 3/8 in Fitting Size, Female, 9,000 psi Max. Working Pressure @ 70 F, ORS (MPN FF9863-06S). Key specifications — Fitting Gender: Female; Material: Steel.
AEROQUIP
Hydraulic Hose Cap: Steel, 3/8 in Fitting Size, Female, 9,000 psi Max. Working Pressure @ 70 F, ORS (MPN FF9863-06S). Key specifications — Fitting Gender: Female; Material: Steel.
Hydraulic Hose Cap: Steel, 5/8 in Fitting Size, Female, 3,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-10S). Key specifications — Fitting Gender: Female; Material: Steel.
AEROQUIP
Hydraulic Hose Cap: Steel, 5/8 in Fitting Size, Female, 3,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-10S). Key specifications — Fitting Gender: Female; Material: Steel.
Hydraulic Hose Cap: Steel, 1/2 in Fitting Size, Female, 4,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-8S). Key specifications — Fitting Gender: Female; Material: Steel.
AEROQUIP
Hydraulic Hose Cap: Steel, 1/2 in Fitting Size, Female, 4,000 psi Max. Working Pressure @ 70 F, JIC (MPN 210292-8S). Key specifications — Fitting Gender: Female; Material: Steel.