RRV4G36-PKG | 4.0 GPM 3600 PSI Triplex Pump Package

RRV4G36-PKG by Annovi Reverberi — Complete RRV Series Triplex Pump Package | 4.0 GPM | 3,600 PSI | Bronze Connecting Rods | Forged Brass Manifold | Gymatic C2 Unloader | F24 SAE J609a 1″ Shaft | Direct Drive Gas Engine | 14,400 Cleaning Units

The RRV4G36-PKG by Annovi Reverberi is a complete, installation-ready RRV Series triplex ceramic plunger pump package engineered for direct drive gas engine-powered pressure washing systems requiring 4.0 GPM at 3,600 PSI. Rated at 4.0 GPM and 3,600 PSI, the RRV4G36-PKG delivers 14,400 cleaning units — the output of a robust professional cleaning platform built for contractor rigs, fleet wash bays, industrial degreasing stations, agricultural operations, and municipal cleaning systems — through bronze connecting rods, solid ceramic plungers, a forged brass manifold, stainless steel valves, dual redundant packing, and an F24 SAE J609a direct-drive flange with 1″ shaft for direct coupling to compatible 11–13 HP gasoline engines. Every fitting, every bolt, the unloader, and the manual ship in one organized box. Mount it. Connect it. Wash. As part of Annovi Reverberi’s pump and unloader assemblies stocked and supported by WSHPWR, the RRV4G36-PKG is the complete answer for operators who need 3,600 PSI ready to run.

The RRV4G36-PKG is a factory-engineered, factory-assembled, factory-tested complete system — designed by Annovi Reverberi in Modena, Italy and distributed across North America by AR North America. Whether you are replacing a worn pump on a contractor trailer, building a new skid for industrial degreasing, specifying a pump for an OEM installation, or outfitting a Predator-powered mobile wash rig — the RRV4G36-PKG eliminates every compatibility question before the box is opened. Protected by a 5-year US limited warranty and built to be fully rebuilt rather than replaced, this is a decade-of-service investment.

Everything in One Box — The RRV4G36-PKG Complete Package Contents

No Return Trips. No Guesswork. No Compatibility Risk. Same-Day Install.

Open the RRV4G36-PKG box and find everything required for a complete engine-to-pump installation:

• RRV4G36 triplex ceramic plunger pump — factory-tested and pre-lubricated with break-in oil. Bronze connecting rods, solid ceramic plungers, forged brass manifold, stainless steel valves, dual redundant packing, oversized crankshaft bearings — factory-installed and factory-verified. Ready to mount.
• Gymatic C2 adjustable unloader with banjo bolts and sealing O-rings — factory-matched and factory-installed for the 4.0 GPM / 3,600 PSI duty point. Smooth pressure regulation and safe bypass from first startup. The right unloader for this pump. Already on it.
• Fittings and mounting hardware — every fitting and fastener required for integration onto contractor skids, fleet wash frames, flatbed rigs, and OEM installations. Organized in the box. Nothing to source separately.
• Chemical injector and suction hose — not included — the RRV4G36-PKG delivers straight 3,600 PSI high-pressure water output. When detergent capability is required, a downstream chemical injector and suction assembly are sourced separately and connected to the system outlet. Choose the draw rate and connection style that matches your cleaning program.
• Factory break-in oil — crankcase pre-filled. First-startup protection already handled.
• Oil sight glass and vented dipstick — at-a-glance oil monitoring from day one.
• Thermal relief valve — factory-installed protection against pump head overheating during extended bypass periods.
• Installation and service manual — complete setup, operating, service, and rebuild procedures with Annovi Reverberi part numbers for every component. AR North America parts availability confirmed across North America.

Decoding the RRV4G36-PKG

What This Annovi Reverberi Pump Package Designation Tells You

• RRV — Pump series: RRV Series commercial triplex plunger pump — Annovi Reverberi’s heavy-duty gas engine commercial platform
• 4G — Pump series identifier for this RRV configuration
• 36 — Maximum pressure: 3,600 PSI — 4.0 × 3,600 = 14,400 cleaning units
• PKG — Complete package: pump, Gymatic C2 unloader with banjo bolts, fittings, mounting hardware, thermal relief valve, manual, and factory break-in oil — everything required for a complete engine-to-pump installation in one organized box

3,600 PSI — The Bronze Rod Threshold

Why Connecting Rod Material Matters at This Pressure.

At 3,600 PSI, Annovi Reverberi engineers the RRV4G36-PKG with bronze connecting rods — and that specification is not incidental:

• 3,600 PSI is the threshold where bronze connecting rods become standard — the mechanical loads transmitted through the crankshaft at 3,600 PSI and above exceed what aluminum connecting rods handle reliably in continuous-duty commercial operation. Bronze connecting rods deliver the strength, wear resistance, and fatigue tolerance required for sustained high-pressure commercial use.
• Bronze rods protect the entire drivetrain — connecting rods transfer crankshaft rotation into plunger reciprocation. At 4.0 GPM and 3,600 PSI, that load is transmitted thousands of times per minute across every operating hour. Bronze construction ensures the RRV4G36-PKG’s drivetrain maintains tight tolerances across seasons of demanding commercial cleaning work.
• The right specification from the factory — the RRV4G36-PKG ships with bronze rods already installed, calibrated, and factory-tested. No upgrade required. No sourcing a higher-spec rebuild kit six months after purchase. The correct specification for this pressure rating is already in the box.

Key Specifications

RRV4G36-PKG Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 3,600 PSI
• Cleaning Units: 14,400 (GPM × PSI)
• Operating Speed: 3,400 RPM — direct drive gas engine
• Engine Range: 11–13 HP gasoline engines with 1″ SAE J609a horizontal keyway shaft
• Pump Type: RRV Series triplex ceramic plunger pump — smooth, low-pulsation output
• Flange: F24 — SAE J609a, 1″ hollow keyway shaft, direct drive gas engine compatible (Annovi Reverberi part AR41866)
• Connecting Rods: Bronze — standard specification at 3,600 PSI and above for continuous-duty commercial operation
• Manifold: Forged brass — corrosion and pressure fatigue resistance under sustained high-pressure operation
• Plungers: Solid ceramic — abrasion, heat, and chemical exposure resistance
• Valves: Stainless steel inlet and discharge — crisp seating, fast recovery, consistent pressure control
• Packing: Dual redundant — two sets of seals per plunger; extended packing life, reduced leakage, minimized downtime
• Volumetric Efficiency: Approximately 93% — excellent energy transfer and reduced heat buildup
• Bearings: Oversized crankshaft — drivetrain stability and reduced wear at working pressure
• Lubrication: Vented oil-bath crankcase — constant lubrication and cooling during extended run times
• Thermal Relief: Included — prevents overheating during extended bypass operation
• Unloader: Gymatic C2 — factory-matched, factory-installed, banjo bolts and O-rings included
• Chemical Injector: Not included — straight 3,600 PSI water output; downstream injector sourced separately
• Warranty: 5-year limited warranty — US-based coverage through Annovi Reverberi North America

Engine Compatibility — What Drives the RRV4G36-PKG

F24 SAE J609a. 1″ Hollow Keyway Shaft. 11–13 HP Range. Predator-Compatible.

The RRV4G36-PKG‘s F24 SAE J609a direct-drive flange accepts a 1″ hollow keyway shaft rated for 11–13 HP gasoline engines. Confirmed compatible platforms include:

• Harbor Freight Predator 420cc / 13 HP — the top of the RRV4G36-PKG’s compatible range and the primary contractor pairing. Direct value-priced replacement for Honda GX390, Briggs & Stratton XR2100, and Kohler CH440. Compatible with the F24 1″ keyway shaft — the natural choice for contractors building Predator-powered mobile wash rigs and flatbed systems with the RRV4G36-PKG at 3,600 PSI.
• Harbor Freight Predator 459cc / 15.8 HP Max Performance — up to 10% more torque than the standard 420cc. Direct replacement for Honda GX390, Briggs & Stratton XR2100, and Kohler CH440. Compatible with the RRV4G36-PKG F24 1″ keyway shaft — the preferred single-cylinder Predator pairing for sustained high-pressure continuous-duty operation.

Built for the Predator-Powered Contractor Rig

Flatbed. Multi-Unit. 3,600 PSI Ready. Maximum Output Per Dollar.

• Build your own system — own the savings and the quality — a Predator 420cc / 13 HP paired with the RRV4G36-PKG delivers 14,400 cleaning units of sustained commercial output at a fraction of the cost of a comparable OEM-assembled pressure washer. The contractor who builds their own system specifies the components, controls the quality, and keeps the margin.
• 3,600 PSI for serious surface work — at 3,600 PSI and 4.0 GPM, the RRV4G36-PKG delivers the pressure and volume combination for contractor surface preparation, graffiti removal, industrial degreasing, and fleet cleaning where the XMV3G32-PKG’s 3,200 PSI output approaches its limits on demanding contamination.
• Standardize your flatbed for maximum uptime — contractors running multiple identical Predator/RRV4G36-PKG stations gain standardized parts, standardized service procedures, and standardized performance across every unit. One rebuild kit. One set of procedures. Every station on the rig.
• AR North America national parts network — every wear component in the RRV4G36-PKG is stocked through AR North America’s domestic distribution. Rebuild kits, packing kits, valve assemblies, C2 unloader service parts — available nationally. The rig keeps running.

Typical Applications

Where the RRV4G36-PKG Delivers Best Results

• Contractors — surface preparation, graffiti removal, and equipment cleaning — the RRV4G36-PKG’s 3,600 PSI output and complete factory package deliver the pressure step-up from lighter packages for contractor accounts where maximum impact force drives cleaning results
• Fleet wash operations — trucks, buses, and trailers where 4.0 GPM output and 3,600 PSI cleaning force handle fleet vehicle contamination efficiently on gas engine-powered portable and stationary wash systems
• Industrial degreasing and plant sanitation — conveyor cleaning, machinery degreasing, and central wash stations where the RRV4G36-PKG’s 14,400 cleaning unit output and bronze rod continuous-duty construction meet sustained industrial cleaning demands
• Agricultural operations — barn sanitation, tractor and implement washdowns, and irrigation maintenance where the RRV4G36-PKG’s complete package and sustained pressure output support demanding agricultural cleaning programs
• Food and beverage processing — USDA-compliant washdown stations for floors and conveyors when used with appropriate detergents and compliance systems, with chemical delivery sourced separately
• Municipal services — sidewalks, transit fleets, and public works service bays where standardized, rebuildable pump packages with national parts availability support scheduled municipal cleaning programs

5-Year US Warranty, National Parts Availability, and Wholesale Pricing

Built in Italy. Distributed Across North America. Bronze Rod Spec. Backed for Five Years.

The RRV4G36-PKG is protected by Annovi Reverberi’s 5-year limited warranty through the US-based warranty and service network administered by AR North America. Every internal wear component — ceramic plungers, bronze connecting rods, forged brass manifold seals and o-rings, stainless valve seats, Gymatic C2 unloader service parts, dual redundant packing kits, and oversized crankcase bearings — is stocked nationally through authorized AR North America distribution channels. Contractors, fleet operators, agricultural operations, industrial facility managers, OEM equipment builders, resellers, and volume buyers are invited to contact the WSHPWR wholesale team for pricing on the RRV4G36-PKG and the complete WSHPWR pump package lineup. WSHPWR maintains one of the most complete Annovi Reverberi inventories available through any US web store — with thousands of products in stock and a continually expanding catalog.

14,400 Cleaning Units. 3,600 PSI. 4.0 GPM. Bronze Rods. F24 SAE J609a. Gymatic C2. Everything in One Box.

Italian Engineering. Predator-Compatible 11–13 HP. Bronze Rod Spec at 3,600 PSI. 5-Year US Warranty.

Stop sourcing components one at a time. Stop guessing at unloader compatibility. The RRV4G36-PKG is the complete Annovi Reverberi pump package for contractors, fleet operators, agricultural teams, industrial facilities, OEM builders, and Predator-powered rig operators who need 4.0 GPM at 3,600 PSI with zero installation surprises. Bronze connecting rods. Forged brass manifold. Dual redundant packing. 93% volumetric efficiency. Gymatic C2 unloader. Thermal relief valve. Every fitting and every bolt. Factory-tested. Pre-lubricated. Five-year US warranty. One box. Same-day install.

Volume buyers and contractors building multi-unit systems can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing across the complete Annovi Reverberi pump package lineup.