Questions? Call us!
+1 (978) 295-7538
Mon-Fri: 9AM - 5PM EST
Mi-T-M JP-4004-3MHB Gas Pressure Washer – 4000 PSI, 3.5 GPM, Honda GX390
$2,700.00
Ships from US manufacturer with factory warranty
Authorized RetailerFactory-authorized dealer with genuine products
Manufacturer's WarrantyFull manufacturer warranty included
30-Day ReturnsHassle-free returns within 30 days
Lowest Price GuaranteedWe match any competitor's price
Order before 5:00 PM EST for same-day dispatch. Estimated delivery:
Need help choosing? Talk to an expert
+1 (978) 295-7538JP-4004-3MHB Gas Pressure Washer — JP Series 4000 PSI with Honda GX390
The JP-4004-3MHB is the highest-output model in Mi-T-M's JP Series, producing 4000 PSI at 3.5 GPM — 14,000 cleaning units — from a 389cc Honda GX390 OHV engine paired with an AR crankshaft pump. At 14,000 CU it delivers 56 percent more cleaning power than a standard 3000 PSI / 3.0 GPM unit and is ETL listed for US use. Buyers comparing the 3MHB (Honda GX390) variant against lesser JP models should note this is the only JP-4004 configuration; at 4000 PSI the AR pump requires the GX390's displacement to maintain rated flow under sustained load.
JP-4004-3MHB Cleaning Output and Engine Performance
At 14,000 CU the JP-4004-3MHB handles jobs that exceed the capacity of 3500 PSI units — stripping loose paint from concrete block, washing enclosed trailers that carry livestock or agricultural product residue, and cleaning large building facades in fewer passes. The Honda GX390 is factory-recommended for commercial equipment at this output level and is the engine choice for buyers with established Honda dealer service relationships.
- 4000 PSI at 3.5 GPM (14,000 CU) — the highest cleaning output in the JP Series; handles paint stripping and heavily fouled industrial surfaces
- 389cc Honda GX390 OHV engine — commercial-duty displacement; Honda's global dealer network covers parts and service in most markets
- AR crankshaft pump, forged brass manifold — crankshaft design sustains continuous-duty operation; brass manifold resists corrosion from mineral-laden water
- ETL listed — independently verified for electrical and mechanical safety to US standards
- Thermal relief valve and in-line water strainer — thermal valve prevents pump damage during trigger-closed idle; strainer catches particulates before they reach pump valves
- 50-ft × 3/8-in non-marking hose, 48-in lance, 10-in flat-free tires — 50-ft reach covers most truck bays; flat-free tires maintain mobility regardless of debris on site
JP-4004-3MHB Applications and Environments
Industrial cleaning contractors use the JP-4004-3MHB where 3500 PSI units leave contaminant behind — paint prep on concrete and masonry, washing heavily fouled livestock trailers, and cleaning chemical plant exteriors. Fleet operations that service tanker trucks and bulk carriers benefit from the 14,000 CU output when stripping road film from large surface areas in a single shift. Property restoration companies use it on building facades before coating application. Municipalities apply it to graffiti removal from concrete and masonry where lower-output washers require chemical pre-treatment to compensate.
JP-4004-3MHB GPM, PSI, and Nozzle Configuration
Rated at 3.5 GPM at 4000 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. Cold water only. 49-state engine — not for sale in California.
Specifications
| PSI | 4000 PSI at rated flow |
| GPM | 3.5 GPM |
| Cleaning Units | 14,000 CU (PSI × GPM) |
| Engine | 389cc Honda GX390 OHV |
| Pump Type | AR Crankshaft |
| Unloader | Mi-T-M 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 | 142 lbs |
| Dimensions (L × W × H) | 40 × 22.5 × 24.5 in |
| Hot/Cold | Cold water only |
| California Sale | Not for sale in CA (49-state engine) |
Documents
Video Overview
| Type | Cart |
|---|---|
| Pressure | 4000 PSI |
| Flow Rate | 3.5 GPM |
| Water Temp | Cold |
| Power | Gasoline |
| Engine | Honda |
Product Warranty Information
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:
- 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).
- We verify your certificate and mark your account tax-exempt — usually within one business day.
- 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. Refunds are issued for the order total minus the non-refundable payment processing fee (2.9% + $0.30), so a cancellation is not always a 100% refund. No fee is deducted if we cancel the order or the item arrives damaged or defective.
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.
$2,700.00
Complete your setup
Commonly paired with the Mi-T-M JP-4004-3MHB Gas Pressure Washer – 4000 PSI, 3.5 GPM, Honda GX390
Added to your order — shipped together.
Frequently Asked Questions
Parts & Accessories That Fit the Mi-T-M JP-4004-3MHB Gas Pressure Washer
Confirmed-fit wear parts and accessories for this machine. Not sure which you need? Call 9782957538.
| Part or accessory | SKU |
|---|---|
| Mi-T-M AW-7500-0035 Pressure Washer Nozzle – Acc-Rotate 6000psi #3.5 | AW-7500-0035 |
| Mi-T-M AW-0050-0176 Pressure Washer Hose – 5/16x23' 4000psi Black | AW-0050-0176 |
| Mi-T-M 15-0270 Pressure Washer Hose – 3/8x50' 4000psi R1 Black | 15-0270 |
| Mi-T-M 15-0277 Pressure Washer Hose – 3/8x25' 4000psi Black | 15-0277 |
How the Mi-T-M JP-4004-3MHB Gas Pressure Washer Compares to Other Mi-T-M pressure washers
The closest 5 models from the 61 Mi-T-M pressure washers we carry, by capacity. Not sure which size fits the job? Call +1 (978) 295-7538.
| Model | Pressure | Flow | Water |
|---|---|---|---|
| Mi-T-M WP-3600-0MHB Gasoline Pressure Washer | 3,600 PSI | 2.8 GPM | Cold |
| Mi-T-M WP-3600-0MKB Gasoline Pressure Washer | 3,600 PSI | 2.8 GPM | Cold |
| Mi-T-M JP-4004-3MHB Gas Pressure Washer— this model | 4,000 PSI | 3.5 GPM | Cold |
| Mi-T-M CA-4004-1MAH Aluminum Pressure Washer | 4,000 PSI | 3.5 GPM | Cold |
| Mi-T-M CA-4004-1MAK Aluminum Pressure Washer | 4,000 PSI | 3.5 GPM | Cold |
Compare products
{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}