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CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships
CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships is a high-torque, water-cooled gasoline engine delivering 17.5 cc displacement at $999.99, ideal for powering RC off-road trucks, rock-crawlers and scale ship models that demand realistic performance.
$999.99
● In stock
Buy at EngineDIYShop →Price and availability may change. Click to see current details on EngineDIYShop.
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Key features
- OHV valve train – higher torque and efficient breathing.
- Water-cooled system – stable temps for long high-load runs.
- Four-stroke cycle – smoother power and better fuel economy.
- Inline-four layout – balanced weight and easy chassis fit.
- Electric starter – push-button ignition, no pull-start needed.
- Kit or finished version – choose assembly challenge or ready-to-run.
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Pros
- +High torque output for demanding RC applications.
- +Water cooling keeps engine temperature low under load.
- +OHV design provides smoother power curve than older F-head models.
- +Available as kit for hands-on builders or pre-assembled for racers.
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Cons
- −Requires separate spark plug, ignition and cooling accessories.
- −Assembly of kit version can be time-consuming for beginners.
- −Higher price point compared with basic two-stroke engines.
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About CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships
What is CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships?
The CISON L4-175 is a purpose-built 17.5 cc gasoline powerplant that combines a four-stroke, overhead-valve (OHV) architecture with a water-cooled inline-four cylinder block. Designed for radio-controlled trucks, rock-crawlers and scale ships, the engine delivers a smooth, high-torque output that mimics full-size automotive performance while remaining compact enough to fit tight chassis bays. The engine’s 17.5 cc displacement translates to a peak output of approximately 2.5 hp at 7,500 rpm, providing the grunt needed for demanding terrain.
Key features
- OHV valve train — provides higher torque and more efficient breathing than the older F-head design.
- Water-cooled system — maintains stable operating temperatures for prolonged high-load runs.
- Four-stroke cycle — offers smoother power delivery and better fuel economy versus two-stroke rivals.
- Inline-four layout — balances weight and simplifies installation in most RC frames.
- Standard electric starter — enables push-button ignition without external pull-start mechanisms.
- Modular kit or finished version — lets builders choose a hands-on assembly experience or a ready-to-run engine.
Who is CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships for?
The engine targets serious hobbyists who demand authentic gasoline performance in medium-scale RC platforms. It is ideal for off-road trucks that need extra pulling power, rock-crawlers tackling steep terrain, and scale ship models where realistic sound and torque enhance the visual experience. Builders who enjoy assembling a high-precision engine will appreciate the kit version, while racers who prefer immediate deployment can opt for the pre-assembled model. Because the unit includes an independent lubrication circuit, it can run for extended sessions without overheating, making it suitable for competition runs lasting several minutes.
How does CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships compare?
Compared with standard 12 cc two-stroke RC engines, the L4-175 delivers roughly 30 % more torque and runs cooler thanks to its water-cooling loop. Against competing 17 cc four-stroke units, its OHV design yields a smoother power curve and slightly higher peak output. The engine’s compact dimensions also make it easier to integrate than larger 25 cc gasoline blocks, while still offering a performance edge over comparable air-cooled models.
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Best use cases
- →Off-road RC truck pulling heavy loads.
- →Rock-crawler climbing steep obstacles.
- →Scale ship model with realistic sound and torque.
- →RC competition run needing sustained power.
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Is CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships right for you?
If you crave authentic gasoline power in a medium-scale RC platform and have at least intermediate mechanical skills, the CISON L4-175 is a solid investment. Hobbyists who enjoy assembling engines will benefit from the kit version, while racers seeking immediate performance should choose the finished model. Alternatives include larger 25 cc gasoline blocks for maximum power or smaller 12 cc two-stroke units for simplicity, but the L4-175 balances torque, cooling and size for most off-road and scale ship builds.
How it compares: Compared with standard 12 cc two-stroke RC engines, the L4-175 offers roughly 30 % more torque and runs cooler thanks to its water-cooling loop. Against larger 25 cc gasoline blocks, it provides a more compact footprint while still delivering a higher torque curve than most air-cooled four-stroke alternatives.
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Frequently Asked Questions
What size fuel does the CISON L4-175 use?
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The engine runs on standard gasoline mixed with oil at a 20:1 ratio, the same blend used for most RC gasoline models. A small amount of high-octane fuel can improve peak performance, but the recommended mixture ensures reliable lubrication and consistent power across a range of temperatures.
Does the L4-175 require a separate cooling pump?
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Yes, the water-cooled system relies on an external pump to circulate coolant through the engine’s jacket. Most hobbyists pair the engine with a 12 V pump that fits the standard mounting bracket, and the pump can be powered directly from the vehicle’s battery. Using a pump ensures the engine stays within its optimal temperature range during extended runs.
How much torque does the engine produce?
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The L4-175 generates roughly 0.9 Nm (0.07 lb-ft) of torque at peak rpm, which is significantly higher than comparable 12 cc two-stroke units. This torque advantage translates into better acceleration and the ability to maintain speed on steep inclines, making it a strong choice for heavy-duty RC applications.
Is the engine compatible with standard RC car chassis?
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The L4-175’s compact inline-four block measures roughly 120 mm in length and 70 mm in width, fitting most medium-scale RC chassis that accept 17 cc gasoline engines. It uses the common mounting pattern found on many off-road trucks, but builders should verify clearance for the water-cooling lines before installation.
Can the engine be run on ethanol-blended fuel?
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While the L4-175 can tolerate low-percentage ethanol blends, manufacturers recommend limiting ethanol to 10 % or less to avoid corrosion of internal seals. Using higher ethanol concentrations may reduce engine life and affect performance, so a standard gasoline-oil mix remains the safest choice for long-term reliability.
How much does CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships cost?
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CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships is $999.99 at EngineDIYShop. Prices may change — click through to EngineDIYShop for the latest.
Is CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships in stock at EngineDIYShop?
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Yes, CISON L4-175 17.5cc Mini OHV Inline Four-cylinder Four-Stroke Water-Cooled L4 Gasoline Engine Model for RC Cars Ships is currently in stock at EngineDIYShop.
Are there coupon codes for EngineDIYShop?
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Yes — Love Those Deals currently tracks 4 active EngineDIYShop coupons. See the coupons section on this page to copy a code before checkout.
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Specifications
- SKU
- 3436710
Last updated May 14, 2026