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Mi-T-M CA-4004-1MCH Aluminum Pressure Washer – 4000 PSI, 4.0 GPM, Honda GX390

Mi-T-M CA-4004-1MCH Aluminum Pressure Washer – 4000 PSI, 4.0 GPM, Honda GX390

Brand: Mi-T-MSKU: CA-4004-1MCHIn Stock – Ready to Ship
$3,415.00
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CA-4004-1MCH Gas Pressure Washer — CA Aluminum Series 4000 PSI, 4.0 GPM with CAT Pump

The CA-4004-1MCH produces 4000 PSI at 4.0 GPM — 16,000 cleaning units — from a 389cc Honda GX390 OHV engine paired with a CAT crankshaft pump on Mi-T-M's 128-lb aluminum frame. The 1MCH is the highest-output configuration in the CA Aluminum Series and the highest-output variant on the CA-4004 frame: at 16,000 CU it exceeds the standard CA-4004-1MAH (14,000 CU) by 14% through higher flow rather than higher pressure. The integrated external bypass system is standard on the CAT pump configuration, providing continuous pump protection without requiring a separately ordered accessory. ETL listed for US commercial use.

CA-4004-1MCH CAT Pump and High-Flow Configuration

The CAT crankshaft pump supports the 4.0 GPM flow rate that exceeds the AR pump's standard configuration on the CA-4004-1MAH/K/M/V variants. CAT pumps are a recognized commercial-duty brand in the pressure washer industry, specified for sustained high-flow applications. The 16,000 CU output is the equivalent of applying 4000 PSI of cleaning pressure across 14% more surface area per pass compared to the 3.5 GPM configurations.

  • 4000 PSI at 4.0 GPM (16,000 CU) — highest output in the CA Aluminum Series; 14% more than the CA-4004-1MAH at 3.5 GPM; handles large surface areas faster
  • 389cc Honda GX390 OHV engine — Honda commercial engine providing torque for 4.0 GPM at 4000 PSI sustained load
  • CAT crankshaft pump with integrated external bypass — CAT pump rated for sustained high-flow commercial use; external bypass included, not a separate accessory
  • 128-lb corrosion-resistant aluminum frame, 13-in flat-free tires — 3 lbs more than AR pump variants; still lighter than steel-frame JP-4004 at 142 lbs
  • ETL listed, vibration isolation plate — ETL certification for commercial procurement; vibration dampening reduces pump seal wear
  • 50-ft × 3/8-in hose, 48-in lance — complete cleaning kit for large vehicle and building surfaces

CA-4004-1MCH Applications and Environments

The CA-4004-1MCH's 4.0 GPM flow makes it particularly effective for large flat surface applications: parking lot and airport apron cleaning, warehouse floor washing, and large building facade cleaning where faster area coverage per pass reduces total cleaning time. Fleet operations washing high-surface-area vehicles — buses, tankers, large flatbeds — use the 16,000 CU output to maintain throughput. Industrial facilities apply it to large equipment pads and production floor areas where 3.5 GPM units require additional passes on the same surface. Property restoration contractors use the 4000 PSI output for coating prep on wide masonry surfaces. The ETL listing makes it acceptable for facility-approval procurement processes where independently certified equipment is required.

CA-4004-1MCH GPM, PSI, and Nozzle Configuration

Rated at 4.0 GPM at 4000 PSI (16,000 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. Integrated external bypass system. Cold water only. 49-state engine — not for sale in California.

Specifications

PSI 4000 PSI at rated flow
GPM 4.0 GPM
Cleaning Units 16,000 CU (PSI × GPM)
Engine 389cc Honda GX390 OHV
Pump Type CAT 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 128 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
Pressure4000 PSI
Flow Rate4.0 GPM
Water TempCold
PowerGasoline
EngineHonda

Product Warranty Information

"3 Year Honda Engine, 7 Year CAT 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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Frequently Asked Questions

What is the cleaning unit output of the CA-4004-1MCH and how does it compare to the CA-4004-1MAH?
The CA-4004-1MCH produces 4000 × 4.0 = 16,000 CU. The CA-4004-1MAH produces 4000 × 3.5 = 14,000 CU. The 1MCH delivers 14% more cleaning output through its higher 4.0 GPM flow rate and CAT pump configuration, compared to the AR pump's 3.5 GPM on the 1MAH.
What pump does the CA-4004-1MCH use and why?
The CA-4004-1MCH uses a CAT crankshaft pump, which supports the 4.0 GPM flow rate that exceeds the AR pump's standard configuration on the CA-4004-1MAH/K/M/V variants. CAT pumps are specified for high-flow commercial applications. The CAT pump on the 1MCH also includes an integrated external bypass system as standard equipment.
Does the CA-4004-1MCH include an external bypass system?
Yes. Unlike the CA-4004-1MAH/K/M/V where the CX-0098 External Bypass is an optional add-on ordered separately, the CA-4004-1MCH includes an integrated external bypass system as a standard feature of the CAT pump configuration. No additional accessory order is required.
Why does the CA-4004-1MCH weigh 128 lbs while the CA-4004-1MAH weighs 125 lbs?
The 3-lb weight difference reflects the additional mass of the CAT pump versus the AR pump. Both use the same 125-lb aluminum frame and Honda GX390 engine. At 128 lbs, the 1MCH remains lighter than the steel-frame JP-4004-3MHB at 142 lbs despite delivering the same 14,000 CU output from the AR variant configuration.
Can the CA-4004-1MCH be sold in California?
No. The Honda GX390 on the CA-4004-1MCH is a 49-state engine that does not comply with California CARB small engine emissions standards. It cannot be sold or registered in California.
What is the advantage of 4.0 GPM versus 3.5 GPM at the same 4000 PSI?
At 4000 PSI, both outputs provide the same surface cleaning pressure. The difference is coverage rate: 4.0 GPM covers approximately 14% more surface area per unit time than 3.5 GPM. For large flat surfaces — parking lots, aircraft aprons, warehouse floors — the higher flow rate reduces total cleaning time. For concentrated spot cleaning on dense fouling, the PSI is identical between the two configurations.

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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