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Mi-T-M CA-3504-1MGH Aluminum Pressure Washer – 3500 PSI, 4.0 GPM, Honda GX390

Mi-T-M CA-3504-1MGH Aluminum Pressure Washer – 3500 PSI, 4.0 GPM, Honda GX390

Brand: Mi-T-MSKU: CA-3504-1MGHIn Stock – Ready to Ship
$3,335.00
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CA-3504-1MGH Gas Pressure Washer — CA Aluminum Series 3500 PSI, 4.0 GPM High-Flow

The CA-3504-1MGH produces 3500 PSI at 4.0 GPM — 14,000 cleaning units — from a 389cc Honda GX390 OHV engine on Mi-T-M's 125-lb aluminum frame. The 1MGH is the high-flow variant of the CA-3504 frame: where the standard CA-3504-1MAH produces 3.5 GPM with an AR pump (12,250 CU), the 1MGH adds 0.5 GPM with a General pump, increasing cleaning output to 14,000 CU — matching the JP-4004-3MHB output but in a lighter aluminum chassis. ETL listed for US commercial use.

CA-3504-1MGH High-Flow Output and General Pump

The General pump is a commercial-grade crankshaft pump that supports higher flow rates than the standard AR configuration on the CA-3504-1MAH/K/M variants. The 4.0 GPM rating at 3500 PSI means 14,000 CU — the same cleaning output as the CA-4004-1MAH at 4000 PSI / 3.5 GPM, but delivered through higher flow rather than higher pressure. Higher GPM is advantageous for large flat surface areas where flow coverage per pass is more important than concentrated pressure.

  • 3500 PSI at 4.0 GPM (14,000 CU) — same cleaning output as the steel-frame JP-4004 but in a 125-lb aluminum chassis; 14% more output than the CA-3504-1MAH at 3.5 GPM
  • 389cc Honda GX390 OHV engine — Honda commercial-duty engine; GX390's 389cc displacement supports 4.0 GPM at sustained 3500 PSI load
  • General crankshaft pump, integrated external bypass system — General pump rated for sustained high-flow commercial use; external bypass built-in to protect from heat build-up during trigger-closed idle
  • 125-lb corrosion-resistant aluminum frame, 13-in flat-free tires — same lightweight chassis as other CA-3504 variants; large tires handle rough terrain
  • ETL listed, vibration isolation plate — ETL certification for commercial procurement; vibration dampening extends pump seal life
  • 50-ft × 3/8-in hose, 48-in lance — complete kit for large surface and elevated cleaning applications

CA-3504-1MGH Applications and Environments

The CA-3504-1MGH's 4.0 GPM flow rate makes it particularly effective for large flat surface cleaning — parking lots, warehouse floors, aircraft aprons, and large building facades — where high flow covers more surface per pass than high pressure alone. Fleet operators washing large-surface vehicles (box trucks, flatbeds, buses) benefit from the increased rinse rate. Property restoration contractors apply it to wide masonry surfaces before coating. Industrial facilities use it for large-footprint equipment pads where faster rinse cycles reduce downtime. The aluminum frame's 125-lb weight remains manageable for solo operators despite the higher-output pump configuration.

CA-3504-1MGH GPM, PSI, and Nozzle Configuration

Rated at 4.0 GPM at 3500 PSI (14,000 cleaning units) at rated flow. Includes quick-connect nozzles in 0°, 15°, and 25° patterns; 50-ft × 3/8-in non-marking high-pressure hose; 48-in lance with insulated trigger gun. External bypass system integrated with pump. Cold water only. 49-state engine — not for sale in California.

Specifications

PSI 3500 PSI at rated flow
GPM 4.0 GPM
Cleaning Units 14,000 CU (PSI × GPM)
Engine 389cc Honda GX390 OHV
Pump Type General Crankshaft
Unloader Adjustable Pressure
Hose 50 ft × 3/8 in non-marking
Lance 48 in
Nozzles Included 0°, 15°, 25° quick-connect
ETL Listed Yes
Net Weight 125 lbs
Dimensions (L × W × H) 42.5 × 23.5 × 24.5 in
Hot/Cold Cold water only
California Sale Not for sale in CA (49-state engine)

Documents

Spec Sheet
Manual

Video Overview

TypeCart
Pressure3500 PSI
Flow Rate4.0 GPM
Water TempCold
PowerGasoline
EngineHonda

Product Warranty Information

"3 Year Honda Engine, 7 Year General Pump"

B2B & Tax-Exempt Purchases

We supply contractors, restoration companies, property managers, schools, government agencies, and other tax-exempt organizations.

How to place a tax-exempt order:

  1. Write to us through our Contact Us page or email info@uscleaningtools.com and attach your valid tax exemption certificate (state resale or exemption certificate).
  2. We verify your certificate and mark your account tax-exempt — usually within one business day.
  3. Place your order and sales tax will not be charged.

For volume pricing or purchase orders, call +1 (978) 295-7538.

Shipping & Returns

Free shipping on most brands for orders over $300, delivered to the lower 48 states. Any brand-specific freight rate is shown at checkout before you pay.

Processing & delivery: in-stock orders are processed within 1–2 business days and typically deliver in 5–7 business days. Tracking is emailed within 24 hours of shipment. Built-to-order and backordered equipment shows its lead time on this page.

Freight deliveries: inspect your equipment on arrival and note any damage on the delivery receipt. Items damaged in transit or defective on arrival are fully covered at no cost to you.

Cancellations: cancel any time before your order ships for a full 100% refund.

30-day returns: return unused equipment in its original packaging within 30 days of delivery. Change-of-mind returns are subject to a restocking fee. To start a return, email info@uscleaningtools.com or call +1 (978) 295-7538.

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Mi-T-M CA-3504-1MGH Aluminum Pressure Washer – 3500 PSI, 4.0 GPM, Honda GX390Mi-T-M CA-3504-1MGH Aluminum Pressure Washer – 3500 PSI, ...
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$3,335.00

Frequently Asked Questions

What is the difference between the CA-3504-1MGH and the CA-3504-1MAH?
Both use the 389cc Honda GX390 on the same 125-lb aluminum frame. The CA-3504-1MAH produces 3.5 GPM with an AR pump (12,250 CU). The CA-3504-1MGH produces 4.0 GPM with a General pump (14,000 CU) — 14% more cleaning output. The 1MGH also includes an integrated external bypass system rather than the optional CX-0098 on the 1MAH.
Why would a buyer choose 4.0 GPM at 3500 PSI over 3.5 GPM at 4000 PSI?
The CA-3504-1MGH at 3500 PSI / 4.0 GPM produces 14,000 CU — the same as the CA-4004-1MAH at 4000 PSI / 3.5 GPM. Higher flow (GPM) covers more surface area per pass on large flat surfaces like parking lots and building facades. Higher pressure (PSI) applies more concentrated force per point, which is better for stubborn surface deposits. For large-area washing, the 4.0 GPM variant is typically faster.
What pump does the CA-3504-1MGH use and how does it differ from the AR pump?
The CA-3504-1MGH uses a General crankshaft pump, which supports the higher 4.0 GPM flow rate that exceeds the AR pump's standard configuration on the CA-3504-1MAH/K/M. Both are commercial crankshaft designs. The General pump on the 1MGH includes an integrated external bypass system as standard equipment, whereas the AR pump on the 1MAH variants requires the optional CX-0098 external bypass.
What is the cleaning unit output of the CA-3504-1MGH?
The CA-3504-1MGH produces 3500 × 4.0 = 14,000 cleaning units. This is the same CU as the JP-4004-3MHB steel-frame unit but delivered from a lighter 125-lb aluminum chassis versus the JP Series' heavier steel frame.
Can the CA-3504-1MGH be sold in California?
No. The Honda GX390 on the CA-3504-1MGH is a 49-state engine that does not comply with California CARB small engine emissions standards. It cannot be sold or registered in California.
Is an external bypass system required for the CA-3504-1MGH?
The CA-3504-1MGH includes an integrated external bypass system as a standard feature of the General pump configuration — it does not require the separately ordered CX-0098 accessory needed on the CA-3504-1MAH/K/M. The integrated bypass allows additional water flow through the pump during trigger-closed idle periods, protecting pump seals from heat build-up.

Frequently Asked Questions

1. What payment methods can I use?

We accept Visa, MasterCard, American Express, Diners Club, Discover, major debit cards, and digital wallets like PayPal, Google Pay, Meta Pay, and Apple Pay.

2. When will my payment be processed?

Your credit/debit card or PayPal account will be charged when you place your order. Secure payment processing protects your information.

3. Will I receive an order confirmation?

Yes, a confirmation email will be sent to the provided email address once the order is placed.

4. How long does it take to process an order?

Orders are processed within 1-2 business days and then prepared for shipment.

5. How long does it take for my order to arrive?

Estimated arrival time (ETA) is 5-7 business days for all orders.

6. Do you offer warranty?

All our products come with a manufacturer warranty of at least 1 year, depending on the brand.

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