CISON L4-175 17.5cc Miniature OHV Four-cylinder Four-Stroke Engine Kits that Runs on Gas for RC Cars Ships

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$999.99
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Product details

CISON L4-175 17.5cc Miniature OHV Four-cylinder Four-Stroke Engine Kits that Runs on Gas for RC Cars Ships

Note: This engine is out of stock now, we need to re-produce them. i think it will be available in January, 2024. this time, we will produce the last 20pcs. and then it will not be sold anymore. buy accessories here.
Download the CISON L4-175 oneline building manual here.

.In early 2022 we introduced the FL4-175 F-head L4 gasoline engine, and this time we brought its upgraded version -- the Cison OHV L4-175  L4 gasoline engine, which maintained a unique, mini and compact appearance and almost the same displacement, compared to the previous L4. But it adds red sports elements on the surface, roughens the crankshaft, and adopts bionics on the carburetor. OHV valve mechanism gives the engine a better power output performance than the F-head design for higher torque output, which is more compatible with RC off-road trucks, tows, etc. Equipped with a standard electrical starting, water cooling system and independent lubrication system, the new L4-175 OHV L4 gasoline engine will also be available in two versions, the KIT version and the finished version. The spark plug, ignition and water cooling accessories are not included, please prepare or purchase on your own. For sale...
.Miniature: Featuring a unique, mini and compact appearance while with large displacement, the L4-175 engine adopts an OHV valve mechanism for a long stroke and high output torque.


Features:

.Build Engine: With a total of hundreds of metal parts, the L4 engine kit allows you to start a great and challenging project, enter the world of micro mechanical engineering and DIY build your own L4 engine.

.Sensitive Response: The engine boasts printing inlet pipes and exhaust pipes that are integrated metal and stainless steel, along with a carburetor designed by bionics for easy adjustment, more sensitive throttle response and deep and powerful sound.  

.Lasting Work: The independent lubrication system and the external oil pump are utilized for superior lubrication when matched with mini oil filters. The engine is cooled with a water cycle for longer operation and lifespan.  

.Sophisticated Manufacture: The main body of the engine is made of aluminum CNC in precision processing, a special bimetal cast iron piston ring, high-precision stiffening cylinder liner, integral stiffening crankshaft and sandblasting oxidation on the surface for an impressive beauty and texture.  

.Convenient Ignition: The CDI igniter dedicated to the L4 engine with a compact size and superb anti-interference performance makes the ignition more stable, which is more friendly to users using remote control electronic devices.

.RC Compatibility: Compatible with RC models, the lightweight engine makes an incredible "heart" for 1/8 and 1/14 crawler, off-road and tractor models that are demanding low torque.  

.Collection and Gift: The engine is available as a perfect addition for machine enthusiasts, engine model aficionados and collectors, a prime choice for RC off-road GP models and a high-end personalized gift for families and friends.

.Notes: The base, CDI igniter, spark plug, oil filter and water cooling accessories are not included. Please operate the engine in line with the instructions to avoid damage by improper operation. Please feel free to contact us if you have any questions.  

Specifications:

.Material: Metal
.Brand: CISON
.Model: L4175-OHV
.Form: Finished Version
.Type: Gasoline Interal Combustion Engine
.Valve Mechanism: OHV
.Displacement: 17.5CC
.Cylinder: L4
.Stroke: Four Strokes
.Cylinder Diameter: 16.7mm
.Stroke: 14mm
.RPM: 1500-8000rpm
.Power: About 2.5ps
.Cooling Mode: Water Cooling
..Lubrication Method: Independent Lubrication System
.Starting Mode: Electronic Starting
.Ignition Method: CDI Igniter for CISON L4 Engine (Not Included)
.Spark Plug Type: 1/4-32 Thread ME8 Spark Plug (Not Included)
.Starting Power: 6-14V, 12V Li battery is recommended (Not Included)
.Fuel Type: 92# Gasoline and Above
.Engine Oil Type: 2T Engine Oil, 10W50 Engine Oil is recommended
.Cylinder Dimensions: 96*43mm
.Product Dimensions: 13.5 x 10.24 x 10.5cm
.Product Weight: 1300g
.Package Dimensions: 20 x 20 x 20cm
.Package Weight: 2200g
.Packing: Bamboo Box
.Ages: 14+

Customer Reviews

Based on 4 reviews
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J
Jon Cook
Another INCREDIBLE Cison Engine!

Cison Engines has done it again with their L4–175 17.5cc miniature four stroke, OHV four-cylinder engine.

The L4-175 engine is my fourth Cison engine I have bought from Stirlingkit, and what an amazing kit!
Just like the FL4 flathead kit, the L4 OHV went together flawlessly, was fun to build with easy to follow build instructions.

Parts quality, fit, finish, and layout is awesome. It’s easy to see Stirlingkit and Cison are proud of the L4, just by the kit’s presentation.

My kit arrived quickly, 4 days after it was shipped from Stirlingkit’s warehouse.
Packaging has always been perfect and arrives safely, just as each and every one of my orders have arrived from Stirlingkit.
Assembly instructions are in an easy to follow QR code based illustrated manual, in numbered parts & parts location format. Once I completed the kit, I installed the components of the starting set (Hall sensor, CDI, coolant lines & radiator) and had immediate success starting & running my engine. Performance is incredible, and tuning is very straightforward.
The Cison L4-175 definitely runs phenomenally.

Huge applause to Stirlingkit & Cison for producing another awesome engine!!

W
Wob Boonstra
Follow up on my previous review

After writing the previous preview (when I discovered that the spark plug size had changed to new specs) Stirlingkit contacted me on THEIR own initiative, and Mona solved the issue for me to full satisfaction.

I can only say: "Well done, Stirlingkit!, Thank you, Mona!".

The engine is running now and it runs GREAT.
Break in is progressing rapidly, and once done, I can install it in a model boat.

W
Wob Boonstra
Oops!

The kit is pretty impressive.

What I did NOT like: The spark plug size is stated as ME8 (1/4"-32, or standard glowplug thread) of which I had plenty stuff in stock, so I did not order the ignition kit.

Now I am getting around to finishing the build, and to my dissapointment, I discovered that the plug holes are NOT 1/4"-32 but much smaller.
Since I noticed that the water pump has been redesigned, it is very possible that also a different plug size is part of the redesign-process.

I have ordered the ignition kit now, but I am not sure the plugs will fit.

PLEASE STIRLINGKIT, SEND ME THE PROPER KIT WITH THE PROPER PLUGS!!!!
I would be highly dissapointed if I would end up with an engine for which no spark plugs are availlable...

U
User Bence

Nice engine.