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BUY 2 GET 15% OFF Code:TW15
BUY 3 GET 20% OFF Code:TH20
Metal Kits 10% OFF Code:Metal
Why You'll Love It
- Therapeutic crafting experience
- Sense of accomplishment
- Healthy stress relief activity
- Stunning decor on your bookshelf
- Museum-quality realism
Pairs well with
REAL SHIPMENT TRACKING
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RETURN WITHIN 30 DAYS
FREE REPLACEMENT PARTS
Shipping Policy
Thank you for your love of surplusfun. If you are not satisfied with our product, please let us know and we can help you return it within 30 days of receipt, minus return shipping and handling.
We will process your order within 1-3 business days and shipping to most countries worldwide takes 7-21 business days!(USA, Canada, Australia, New Zealand, UK, Germany, Switzerland, France, Spain, Italy, Singapore, Norway, Denmark, Japan, Korea)
Returns are allowed
- Received damaged product (excluding outer packaging damaged in transit)
- Products received in error
Please note, returns or exchanges are not accepted for opened or used items.
Contact Us
Thank you for visiting our website! We appreciate your interest and are committed to providing you with the best possible service. Your feedback, inquiries, and suggestions are invaluable to us. Please reach out through any of the methods listed below, and we’ll be happy to assist you.
Email Us:
For any general questions, support, or inquiries regarding our products and services, please email us at service@surplusfun.com. Our dedicated team strives to respond to all emails within 24 hours, ensuring you receive timely assistance.Our customer service representatives are available Monday through Friday from 9 AM to 5 PM (EST) to address any concerns or questions you might have.
Realistic DOHC Design:
This L4 engine model features a Dual Overhead Cam (DOHC) structure, accurately replicating the design and functionality of a real car engine for an ultra-realistic experience.
Precision Engineering & Premium Build:
Crafted with premium quality materials and expert precision, this model showcases the internal combustion process, offering a fully functional, compact version of an internal combustion engine.
Triple Piston Ring Efficiency:
Each cylinder is equipped with three piston rings (two compression rings and one oil ring), providing optimal compression for efficient, smooth, and powerful performance.
Quick Ignition & Start:
Featuring a built-in brushless motor and CDI ignition system, this engine allows for easy one-touch ignition and smooth operation, ensuring reliable and convenient use.
Water-Cooled&Lubrication System:
The engine is equipped with an efficient water-cooling system and an independent oil pump with a continuous lubrication cycle, increasing durability and extending the engine’s lifespan.
Perfect for Enthusiasts:
Perfect for car enthusiasts, engineers, and educators, this model offers the opportunity to explore the principles of a real engine, making it a remarkable display piece for collectors and hobbyists alike.
Age Recommendation: 16+
More Details:
.Material: Metal
.Brand: ENJOMOR
.Model: GS-L4 (D6S)
.Form: Finished Version
.Engine Type: Gasoline Internal Combustion Engine
.Valve Mechanism: DOHC
.Displacement: 36cc
.Cylinders: Inline Four-Cylinder
.Cycle: Four-Stroke
.Bore: 22.9mm
.Stroke: 20.0mm
.Output Shaft Diameter: 10mm
.Max RPM: 12,000 rpm
.Max Power: 1.8kw
.Cooling System: Water-Cooled
.Lubrication System: Independent Lubrication (Oil Pump Lubrication)
.Starting Method: Brushless Motor Start
.Ignition Type: CDI Ignition with Distributor Control
.Spark Plug Type: 1/4-32 Thread ME8 Spark Plug
.CDI Ignition Power Supply: 10-12V Battery
.Starter Motor Power Supply: 80A ESC and 24V Battery
.Fuel: 92# or higher gasoline
.Oil Type: 0-20W, 50mL
.Product Weight: 3000g
.Package Weight: 4000g
.Product Dimensions: 19.4 x 14 x 17cm
.Package Dimensions: 27 x 18 x 20cm
.Packing: Crash-proof Box

L4 Engine GS-L4 36cc DOHC Inline 4 Cylinder 4 Stroke Water-Cooled L4 RC Gasoline Engine Model that Works - Speed Up to 12,000rpm
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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What Makes It Special
Mental Refresh
Immersing yourself in detailed crafting stimulates the mind, helping you reset, relax, and step away from everyday routines.
Meaningful Time Together
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Perfect as a Gift & Display Piece
Give more than a gift—offer a memorable experience that transforms into a unique decor piece to be proudly displayed.


Why Our Craft Kits Are So Popular
🧘♀️ 98% say the moment the wooden pieces fit together, stress simply melts away.
💑 97% of couples now enjoy creative evenings together — more fun, more connection, and better than another night of TV.
🎁 95% agree: “The best gift ever!” — far more meaningful than gift cards or chocolates.
FAQs
Please read our FAQs page to find out more.
What does your DIY Craft Kits comes with?
Our DIY craft kits come with everything you need, from detailed instruction guides, cutting tools, craft paper, solid plywood, and lights. However, due to shipping restrictions, we are unable to provide glue. However, we recommend that you purchase silicone glue for your craft projects at a bookstore or art store!
Shipping time and return policy
Thank you for your choice and support. Your order will usually ship within 72 hours, air freight to most countries is expected to take 7-21 business days.
We offer a 30-day return policy (30 days from receipt of your order) and only accept unused, undamaged merchandise.
Damaged and missing parts
Don't worry if parts are lost or damaged, we offer free replacement parts Contact Us
Problems encountered during model assembly
All our models are carefully selected, designed and tested many times. The quality is no problem. Considering the difference in hands-on ability of each person, it is inevitable that some problems will occur. Here we share some tips for model assembly
Due to the natural properties of wood, wooden parts are fragile and you need to use proper force to put them together
All wooden model drive parts or modules. Always use sandpaper to sand and wax block to lubricate. Make sure that the drive parts will work properly. This is the key to successfully completing your wooden model.
Stay patient, follow the instruction steps, pay attention to the front and back of the parts and orientation and you're done.
Good luck completing your model!
Thank you again for choosing our models and for your support!
✨ Designed with Care — for Quiet, Meaningful Moments
Each kit is thoughtfully designed with meticulous attention to detail, precisely crafted, and safety tested. Our Book Nooks are more than craft kits—they open the door to magical miniature worlds, invite shared moments, and create lasting joy. A quiet adventure you’ll never want to take off your shelf.



