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Scout has described the Harvester range extender as a four-cylinder gasoline engine that generates electricity for the vehicle’s high-voltage battery. It does not mechanically drive the wheels. But Scout has not publicly identified the selected engine’s model, displacement, or supplier in the official material reviewed, so the exact engine choice remains unconfirmed.
What engine has Scout confirmed for Harvester?
Scout’s October 2024 reveal described Harvester as using a four-cylinder engine to act as a generator. The company has not named the engine or supplier, or specified its displacement, in the official information reviewed. That means claims identifying a particular Volkswagen engine or engine family should be treated as speculation, not a confirmed selection. Scout says further Harvester specifications are not yet available. Scout’s 2024 reveal
How does the Harvester system work?
Harvester is a gasoline-powered onboard generator. It charges the high-voltage battery, while electric motors drive the wheels; the gasoline engine does not mechanically propel them. Scout describes the vehicles as range-extended electric vehicles, or EREVs. The setup differs from a conventional hybrid in which an engine can send power directly to the wheels. Scout Motors Help Center, June 25, 2026
What range does Scout project?
For Harvester-equipped vehicles, Scout projects approximately 150 miles of electric-only driving and more than 500 miles of total range. The electric-only figure describes travel before the generator is needed to extend the trip; the combined figure includes the range-extending system. These are Scout projections, not EPA ratings or independently verified results. Scout says EPA estimates will be provided when available. Scout Motors Help Center, June 25, 2026
#1 Best Overall
- Color：Silver
- Rows: 3
- Placement on Vehicle：Front, Engine Compartment
- Manufacturer Warranty：1 Year
- Item Length：21.6"
Scout’s September 2026 update also puts the battery-electric Traveler and Terra at an estimated 350-mile range, while Harvester versions target up to 500 miles. Those figures are company estimates and targets, not certified results. Scout Motors’ September 2026 update
| Configuration | Scout’s stated range | What the figure means |
|---|---|---|
| Harvester | Approximately 150 miles electric-only; more than 500 miles total | Scout projection; EPA estimates pending. Scout Motors Help Center, June 25, 2026 |
| Battery-electric Traveler and Terra | Estimated 350 miles | Scout estimate in its September 2026 update. Scout Motors |
How do performance and availability compare?
Scout projects a 0–60 mph time as quick as 4.5 seconds for Harvester vehicles and 3.5 seconds for fully electric versions. It cautions that acceleration varies by vehicle and configuration; these are projections, not production-vehicle test results. Scout Motors
Rank #2
- 1.Fit to: 1970-1981 International Harvester Scout II & Pickup Truck V8.
- 2.Item specifics: Core Size: 21.65 x 22.05 x 1.89", Overall Size: 29.13 x 23.62 x 5.51", Radiator Weight: 19.84 lbs, Inlet/Outlet Diameter: 1.97/1.97", Core Rows No: 2 row. Included: Radiator+cap. Tank&Core Material: 3003 Aluminum.
- 3.Whether you're a weekend warrior or a seasoned pro, this radiator is a must-have upgrade for your car.Its robust construction and superior cooling capabilities will give you the confidence to push your bike to the limit, knowing that it's protected from the damaging effects of overheating.
- 4.Keep your car running cool and performing at its peak with this high-performance aluminum radiator. Designed as a direct replacement for the OEM radiator, this upgrade offers superior cooling efficiency and durability, ensuring your bike stays in top condition even under extreme riding conditions.
- 5.The radiator is constructed from high-quality aluminum, featuring a precisely engineered fin design that maximizes airflow and heat dissipation.This not only helps prevent overheating lso enhances engine performance and longevity.
Scout targets initial production in 2027 and anticipates customer deliveries in 2028. It expects the Harvester-equipped Traveler SUV to be the first configuration produced. These are company timing targets, not confirmed delivery dates. Scout Motors Help Center, April 2, 2026
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which Harvester specifications are still unknown?
Scout’s public material reviewed does not establish the engine’s exact model, displacement, supplier, or output. It also does not provide fuel economy, fuel-tank capacity, towing impact, or EPA-certified range. Until Scout publishes those details, the four-cylinder description is the limit of what can be stated as confirmed about the engine.
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Best Value
- [Vehicle Fitment]: Compatible with International Harvester Scout II 1971 L6 3.8L, Scout II 1975 V8 6.4L, Scout II 1971-1980 L4 3.2L/V8 5.0L/V8 5.6L, Scout II 1972-1974 L6 4.2L/V8 5.7L, Scout II 1976-1980 L6 3.2L --- It fits for models with 19 Gallons
- [Reference Number]: 402522C2, SCSU-2
- [Package Contents]: 1 x Fuel Tank Sending Unit, Packaging Type: Box
- [Direct Replacement]: This fuel tank sending unit is designed to match the fit and function of the original unit on specified applications
- [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted Fuel Sending Unit. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.
Rank #4
- OE/OEM Part Number:7180, AE7180, CC7180, CU7180, DPI7180, KKS7180, SBR7180，For 1970-1981 International Scout II 5.0 5.6 V8 Engines
- Radiator Dimensions：Core Size:22" high x 21-4/7" wide,Overall size: 22-3/4" high x 29-3/4" wide,Outlet Diameter 2 in,Inlet Diameter 1 7/8in..Please verify dimensions before purchasing to ensure proper fitment.
- All-Aluminum Racing Design：Aluminum Radiator, with high-density louvered fins improves cooling efficiency by 35-45%. Built for extreme weather durability.
- Leakproof & Anti-Crack：Seamlessly welded inlet/outlet tanks withstand extreme engine temperatures.No cracking or leaking worries.
- Enhanced Package ： Package come with 1x Complete Radiator, no bending and no damage. Professional installation would be highly recommended
Rank #3
- Replacement for 1971-1980 International Harvester Scout II 2 - See below Description for Specific Fitments
- Includes Fuel Tank With Extended Range Capacity, Fuel Sending Unit, Mounting Straps, J-Bolts, Vent Fittings/Plugs, Hose
- 27 gallon tank offers extended range when compared to the stock 19 gallon capacity; Sending unit and mounting straps are custom designed to fit the larger upgraded tank
- Sending unit and mounting straps are custom designed to fit the larger upgraded tank
- Various fittings for vented and non-vented systems included to accommodate the different venting configurations used between 1971 and 1980 Scout II's
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