XMV25G26D-F25M2 2.5 GPM 2600 PSI Pump | 3400 RPM F25M2

XMV25G26D-F25M2 by Annovi Reverberi — Triplex Plunger Pump with Gymatic Unloader | 2.5 GPM | 2,600 PSI | 3/4″ Shaft | SAE J609A Gas and Diesel Engine Drive | No Chemical Injector

The XMV25G26D-F25M2 by Annovi Reverberi is a commercial-grade XM Series triplex ceramic plunger pump engineered for gas and diesel engine-driven pressure washing systems that require 2,600 PSI output, dependable Gymatic bypass pressure control, and a fully rebuildable platform built for long-term commercial service — without an integrated downstream chemical injector. Rated at 2.5 GPM and 2,600 PSI at 3,400 RPM, the XMV25G26D-F25M2 close-couples directly to gasoline or diesel engines via its F25 SAE J609A direct-drive flange — the standard 3/4″ shaft interface for the Honda GX390, Kohler CH395, Briggs and Stratton Vanguard, and comparable contractor gas engine platforms — without adapters or intermediate couplings.

The XMV25G26D-F25M2 is the straight-pressure configuration of the XMV 2.5 GPM / F25 platform — correct for operators managing chemical delivery through a dedicated external downstream injector, soft wash proportioner, or operating on water pressure alone. Its Gymatic 3/B unloader provides stable adjustable-then-lockable pressure regulation at 2,600 PSI, well within the unloader’s rated envelope at the accepted 15% upside variance AR applies across its unloader pairings.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the XMV25G26D-F25M2 arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with a Gymatic unloader, and packaged with mounting bolts and fasteners, a vented dipstick, operator’s manual, and full parts schematic, this pump is ready to install from the moment it arrives. Protected by a 5-year US limited warranty through AR North America and built to be fully rebuilt rather than replaced, the XMV25G26D-F25M2 is a long-term investment in a commercial pump platform capable of a decade of productive service life.

Decoding the XMV25G26D-F25M2 Model Number

What Every Segment of This AR Pump Designation Tells You

Annovi Reverberi encodes all critical specification data — pump series, performance output, shaft type, flange interface, unloader family, and injector status — directly into the model number. Reading the XMV25G26D-F25M2 correctly before specifying confirms engine compatibility, unloader family, and chemical feed configuration:

• XMV — Pump series: XM Series triplex plunger pump — AR’s commercial high-pressure platform with forged brass manifold construction, engineered for sustained commercial-duty operation at 2,600 PSI
• 25G26 — Performance rating: 2.5 GPM flow rate at 2,600 PSI maximum operating pressure
• D — Shaft version: Direct Gas/Diesel Drive — 3/4″ hollow shaft for direct coupling to gasoline or diesel engine 3/4″ output shafts
• F25 — Flange type: SAE J609A direct-drive flange for XM Series ‘D’ version pumps — close coupling to gas or diesel engines with a 3/4″ cylindrical shaft (AR part AR1780580). Compatible with the Honda GX390, Kohler CH395, Briggs and Stratton Vanguard, and comparable 3/4″ shaft commercial engine platforms.
• M2 — Unloader code: Gymatic 3/B (M2 = C2 = Gymatic per AR suffix designation) — Gymatic series internal bypass unloader, brass body, adjustable pressure regulation, rated to 3,650 PSI and 3–4 GPM. Provides 1,050 PSI of operating headroom above the XMV25G26D-F25M2’s 2,600 PSI output — within AR’s accepted 15% upside variance for unloader pairings.
• No trailing I suffix — the model terminates at M2 with no “I” following, confirming this pump delivers straight high-pressure water output without an integrated downstream chemical injector. Operators requiring built-in chemical feed should select the XMV25G26DF25M1I or the equivalent M2I variant.

XMV25G26D-F25M2 vs XMV25G26DF25M1I — The 2.5 GPM / F25 Platform Variants

These two pumps share the same XM Series platform, F25 SAE J609A 3/4″ shaft flange, and 2.5 GPM / 2,600–2,700 PSI output class. The differences are unloader capacity and injector status:

• XMV25G26D-F25M2 (this model) — Gymatic 3/B unloader (M2), 3,650 PSI rated, no chemical injector. Correct for systems managing chemical delivery externally or operating on straight water pressure. Standard commercial duty cycle specification.
• XMV25G26DF25M1I — Gymatic VR35 unloader (M1), 4,000 PSI rated, chemical injector included. Correct for high-cycle production environments where the VR35’s additional 350 PSI of unloader headroom above the Gymatic 3/B extends service intervals, plus integrated two-mode chemical capability.

Confirming the correct variant before ordering ensures your unloader capacity specification and chemical delivery architecture both match your operational requirements.

Key Specifications

XMV25G26D-F25M2 Technical Details at a Glance

• Flow Rate: 2.5 GPM (gallons per minute)
• Maximum Pressure: 2,600 PSI
• Operating Speed: 3,400 RPM
• Pump Type: Triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, consistent, high-pressure output
• Crankshaft Bore: 3/4″ hollow shaft — direct engagement with gas or diesel engine 3/4″ output shaft
• Manifold Material: Forged brass — dense, pore-free construction for corrosion resistance and sustained 2,600 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and chemical inertness across extended commercial operating hours
• Valves: Stainless steel — precise seating geometry, scale resistance, and reliable performance under continuous 2,600 PSI cycling
• Flange: F25 — SAE J609A direct-drive flange for XM Series ‘D’ version, 3/4″ shaft (AR part AR1780580)
• Unloader System: Gymatic 3/B series (M2 / C2 code) — brass-body internal bypass unloader, adjustable pressure regulation, rated to 3,650 PSI and 3–4 GPM
• Chemical Injector: Not included — model terminates at M2 with no injector suffix
• Warranty: 5-year limited warranty — US-based coverage through AR North America with domestic parts and service support

What’s Included in the Box

A Complete, Factory-Configured XMV25G26D-F25M2 Assembly Ready for Installation

Every XMV25G26D-F25M2 ships fully assembled and field-ready. No supplemental hardware sourcing, fluid filling, or pre-run preparation is required before installation:

• Factory-installed Gymatic 3/B unloader (M2) — pre-mounted for internal bypass pressure regulation at 2,600 PSI; no downstream injector port on this XMV25G26D-F25M2 variant
• AR factory break-in oil — crankcase pre-filled to the correct operating level for first startup without modification
• Vented dipstick — enables fast, accurate crankcase oil level checks while maintaining proper crankcase pressure relief during operation
• Clear oil sight glass — at-a-glance oil level monitoring without removing the dipstick cap
• Mounting bolts and fasteners — hardware pre-selected and sized for F25 SAE J609A direct-drive flange installation on compatible 3/4″ shaft gas or diesel engines
• Operator’s manual — complete installation, startup, operating, and maintenance procedures for the XMV25G26D-F25M2 including oil change intervals and winterization protocol
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable XMV25G26D-F25M2 component for field and shop reference
• Factory test certification — every XMV25G26D-F25M2 load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

The Gymatic Unloader — Tamper-Resistant 2,600 PSI Pressure Control

Configured for External or No Chemical Feed. Set It. Lock It. Run the XMV25G26D-F25M2 All Day.

The Gymatic 3/B unloader (M2) on the XMV25G26D-F25M2 is rated to 3,650 PSI — providing 1,050 PSI of operating headroom above the pump’s 2,600 PSI output, within AR’s accepted 15% upside variance. Once pressure is set and locked on the XMV25G26D-F25M2, the Gymatic’s tamper-resistant design holds that setting reliably:

• Adjustable then tamper-resistant — operating pressure set on-site and locked before operation, maintained consistently across every operator, every rental cycle, and every shift without re-adjustment or drift on the XMV25G26D-F25M2
• Internal bypass operation — trigger-off bypass on the XMV25G26D-F25M2 smoothly redirects flow, preventing deadhead pressure spikes that accelerate seal and valve wear during idle intervals on production wash jobs
• No downstream injector port — the XMV25G26D-F25M2 delivers straight 2,600 PSI / 2.5 GPM water output. Chemical delivery is managed externally through a dedicated downstream injector, soft wash proportioner, or separate chemical system — giving operators and system builders precise ratio control independent of the pump
• Engine load reduction in bypass — reduced back-pressure lowers engine load and fuel consumption during idle intervals on full-day wash operations
• Brass body construction — resists corrosion from cleaning chemicals, chlorinated water, and sustained outdoor field exposure

Why No Injector Is the Right Choice for Some XMV25G26D-F25M2 Applications

When External Chemical Control Outperforms a Fixed Venturi

The XMV25G26D-F25M2 without an integrated injector is the correct specification for a well-defined set of professional applications where external chemical management is preferred or required:

• Adjustable-ratio external downstream injectors — operators running independently adjustable downstream injectors gain ratio flexibility — changing chemical concentration for different surfaces and contamination levels — that a fixed venturi injector built into the unloader cannot provide on the XMV25G26D-F25M2 platform
• Soft wash and proportioner systems — soft wash rigs and chemical proportioning systems managing delivery through batch tanks or metering pumps keep the XMV25G26D-F25M2 as a clean water supply source, maintaining precise chemical control independently of the pump
• Multi-chemical applications — contractors applying different chemistry for different surfaces on the same job benefit from chemical delivery systems that can be swapped and adjusted without modifying the XMV25G26D-F25M2 pump or unloader
• OEM system integrators — equipment builders specifying injection type, ratio, and placement independently from the XMV25G26D-F25M2 pump across multiple rig configurations or system types

F25 SAE J609A — The Standard 3/4″ Shaft Contractor Engine Interface

Direct Drive. Broadest Engine Compatibility. No Adapter Required.

The F25 flange on the XMV25G26D-F25M2 is AR’s SAE J609A direct-drive interface for XM Series ‘D’ version pumps matched to the 3/4″ shaft contractor engine class:

• Broad gas engine compatibility — the F25 SAE J609A 3/4″ shaft standard covers the Honda GX390, Kohler CH395, Briggs and Stratton Vanguard 13, Kawasaki FX481V, and comparable commercial gas engine platforms — the most widely deployed engines on contractor pressure washer frames in the US market
• Diesel engine compatibility — equally compatible with diesel engines equipped with a 3/4″ output shaft and SAE J609A bolt pattern for operations where diesel power is the preferred or required fuel source
• Direct close-coupling — the XMV25G26D-F25M2 mounts face-to-face against the engine with the 3/4″ hollow shaft bore engaging the engine output shaft directly. No belt, jackshaft, or adapter required in a standard direct-drive installation.
• Compact installation envelope — direct coupling eliminates belt guards, pulleys, and tensioning hardware, reducing overall skid and trailer frame dimensions for portable contractor rigs
• Included mounting hardware — bolts and fasteners sized for the F25 bolt pattern are supplied in the box with the XMV25G26D-F25M2

XM Series Construction — Every XMV25G26D-F25M2 Component Built to Be Rebuilt

Solid Ceramic. Forged Brass. Stainless Steel. Individually Serviceable.

• Solid ceramic plungers — machined from solid ceramic throughout, not ceramic-coated. The hardness and dimensional stability of solid ceramic maintain precision geometry across thousands of XMV25G26D-F25M2 operating hours at 2,600 PSI, resisting the abrasive wear from dissolved minerals and particulates in supply water. Individual replacement when service limits are reached — all other XMV25G26D-F25M2 components remain in productive service.
• Forged brass manifold provides a dense, pore-free pressure vessel that withstands the cyclic mechanical stress, thermal variance from gas and diesel engine environments, and sustained commercial duty on the XMV25G26D-F25M2 without the structural degradation that limits cast aluminum manifolds under comparable conditions.
• Stainless steel valves maintain precise seating geometry through hundreds of thousands of 2,600 PSI pressure cycles on the XMV25G26D-F25M2, resisting calcium scale accumulation and pitting that cause pressure loss in lesser materials.
• Triplex three-plunger design produces smooth, overlapping pressure pulses that reduce pulsation-induced fatigue stress on hoses, spray guns, and fittings throughout the wash system connected to the XMV25G26D-F25M2.

Typical Applications

Where the XMV25G26D-F25M2 Delivers Best Results

• Professional pressure washing contractors with external chemical systems — 2,600 PSI / 2.5 GPM cleaning output from the XMV25G26D-F25M2 paired with independently managed detergent delivery for building exterior washing, surface restoration, and commercial property maintenance
• Soft wash operations — the XMV25G26D-F25M2 supplies clean 2,600 PSI rinse water while a dedicated soft wash proportioner manages chemical delivery at correct dilution ratios for each application
• Fleet and heavy vehicle washing — trucks, trailers, construction equipment, and service vehicles where the XMV25G26D-F25M2’s 2,600 PSI output removes road film and contamination effectively with chemical applied through an external injector system
• Agricultural operations — tractors, combines, barn equipment, and facility washdowns on gas or diesel engine-powered rigs where the XMV25G26D-F25M2 delivers consistent high-pressure output and chemical delivery is managed separately from the pump
• Municipal and government services — utility truck fleets and public works equipment where straight 2,600 PSI output and broad 3/4″ engine compatibility from the XMV25G26D-F25M2 are the primary requirements
• Rental equipment fleets — tamper-resistant Gymatic pressure control, solid ceramic XM Series construction, and factory-tested reliability on the XMV25G26D-F25M2 maximize rental-ready uptime and minimize damage claims
• Contractor rig builders and OEM integrators — the XMV25G26D-F25M2’s F25 3/4″ interface covers the broadest range of standard contractor gas engine platforms with chemical delivery specified and managed independently at the system level

5-Year US Warranty, Full Re-buildability, and Wholesale Pricing

Domestic Support for the XMV25G26D-F25M2 — Built to Last as Long as the Pump

The XMV25G26D-F25M2 is protected by Annovi Reverberi’s 5-year limited warranty through AR North America’s US-based warranty and service network. Every internal wear component of the XMV25G26D-F25M2 — solid ceramic plungers, brass manifold seals and o-rings, stainless valve seats and springs, Gymatic unloader service parts, and crankcase bearings — is stocked domestically through AR’s authorized distribution channels.

With consistent maintenance — break-in oil change at 50 hours, scheduled oil changes every 500 hours or 3–5 months, regular valve and seal inspection, and proper winterization using RV-grade environmentally safe antifreeze — the XMV25G26D-F25M2 is engineered for 10 or more years of productive commercial service life. AR North America’s domestic parts depth ensures rebuild kits, plunger sets, and Gymatic unloader service components for the XMV25G26D-F25M2 are typically available same-week, keeping contractor rigs and fleet wash operations running rather than waiting on international shipping timelines.

Contractors, rental fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact wholesale@wshpwr.com for wholesale and special pricing on the XMV25G26D-F25M2 and the full Annovi Reverberi pump and unloader assembly line. WSHPWR stocks more than 1,900 AR North America products — one of the most complete AR inventories available through any US web store.

2,600 PSI. Gymatic Bypass. External Chemical Control. XM Series Built.

Italian Engineering. F25 Standard Engine Interface. US Warranty Coverage.

For contractors, soft wash operators, fleet maintenance teams, and OEM rig builders who need a commercial-grade gas engine-driven triplex pump with 3/4″ shaft direct-drive compatibility, tamper-resistant Gymatic 3/B pressure control, and clean 2,600 PSI / 2.5 GPM water output configured for external chemical delivery, the XMV25G26D-F25M2 delivers a factory-tested, fully documented, and completely rebuildable XM Series assembly from one of the global pressure pump industry’s most trusted manufacturers. Two thousand six hundred PSI. F25 direct drive. Three-quarter inch shaft. Gymatic bypass. No fixed injector. Five years of US warranty. A decade of service life.

Volume buyers, resellers, and rental fleet operators can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing for quantity purchases across the complete Annovi Reverberi lineup — including pumps, unloader assemblies, and service parts.