JMCHstore Replacement Fuel Tank for Generac 5–8 kW Generators — 7.2 gal Black, Complete Kit

This is a JMCHstore OEM 7.2-gallon metal replacement fuel tank engineered to fit a range of Generac 5–8 kW portable generators, restoring fuel capacity and mounting compatibility.

When a factory tank is dented, corroded, or leaking, replacing it with a direct-fit OEM-style tank keeps your portable generator reliable and safe. The JMCHstore tank is sized and drilled to match common Generac side-mount patterns for GP5500, GP6500, RS-series, XT-series and related models. It arrives as a complete kit with the cap, petcock, vent, gauge and filter so you can reinstall the fuel system without hunting for extra parts.

What generator models does this tank work with?

This replacement tank is made to match Generac GP and RS/XT family dimensions and mounting points. It lists compatibility with many part numbers and popular 5–8 kW models; check your generator model number and center-to-center mounting measurement before ordering.

• Fits GP5500, GP6500 and GP7500 style generators (5–8 kW range).
• Compatible with RS5500, RS7000E, RS8000 and related XT8000E/XT8500EFI models.
• Matches OEM part references including 005939, 005941 series and several GP6500E variants.
• Physical center-to-center mount spec: 455 mm x 455 mm; height 171 mm.

How is the tank supplied and what hardware is included?

You receive a ready-to-install replacement kit containing the tank and the common fuel system parts needed for most straightforward swaps. That reduces downtime and ensures compatibility of threaded fittings and vents with existing fuel lines.

• One orange painted metal gas tank (7.2 gallons / 32.7 L) sized to OEM dimensions.
• Included fuel petcock and fuel filter for immediate plumbing to carburetor or fuel pump.
• Gas cap, fuel gauge and a vent valve supplied to complete the assembly.
• Hardware lets you reinstall without sourcing separate Generac-specific fittings.

What are the practical benefits of replacing my tank with this JMCHstore unit?

Replacing a damaged tank restores safe fuel storage, prevents leaks, and preserves generator runtime. The metal construction and factory-fit layout help maintain original clearances and keep mounting stable under vibration.

• Restores full 7.2-gallon fuel capacity for longer run times between refills.
• OEM-style fit reduces modification or custom brackets during installation.
• Painted finish helps resist surface corrosion compared to bare metal.
• Complete parts kit lowers the chance of mismatched fittings or missing components.

Who this is for: This JMCHstore OEM replacement tank is intended for owners, fleet managers, and repair technicians who need a direct-fit fuel tank for Generac 5–8 kW portable generators. It suits those repairing storm-damaged units, performing maintenance on older machines, or swapping a worn tank to restore safe operation. Verify your generator model and mounting center-to-center measurements before purchase to ensure compatibility.