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🎅2025 Christmas Sale: 12% OFF Sitewide-Up to 50% OFF-> Code: XS12 Click Here for More Details!
🎅2025 Christmas Sale: 12% OFF Sitewide-Up to 50% OFF-> Code: XS12 Click Here for More Details!

BEST SELLERS

Save Up to 50% Off !

Best Sellers & New Year Deals Offer at enginediy:
1. Sitewide Discount: Save 10% Off with Code: 2025
2. Special Offers on Selected Products : Save Up to 50% Off 
3. Join Our FacebookGroup & Get Extra Discount!

Original price $249.99 - Original price $249.99
Original price
$249.99
$249.99 - $249.99
Current price $249.99

SKYMECH PT6A Turboprop Engine Model Kit -Build Your Own Turboprop Engine that Works -3D Printing DIY Aircraft

SKYMECH PT6A Turboprop Engine Model Kit -Build Your Own Turboprop Engine that Works -3D Printing DIY Aircraft 100PCS Features: Product backgroun...

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Original price $249.99 - Original price $249.99
Original price
$249.99
$249.99 - $249.99
Current price $249.99
Original price $299.99 - Original price $320.99
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$299.99 - $320.99
$299.99 - $320.99
Current price $299.99

YU XIANG F07-V 1/34 Scale UH-1 Huey 2.4G 6CH Brushless Direct-Drive Flybarless RC Helicopter Model Mode 1/Mode 2 Switchable (RTF Version)

YU XIANG F07-V 1/34 Scale UH-1 Huey 2.4G 6CH Brushless Direct-Drive Flybarless RC Helicopter Model Mode 1/Mode 2 Switchable (RTF Version) Product ...

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Original price $299.99 - Original price $320.99
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$299.99 - $320.99
$299.99 - $320.99
Current price $299.99
Original price $179.99 - Original price $179.99
Original price
$179.99
$179.99 - $179.99
Current price $179.99

ZD Racing BX-12 1/12 Scale 2.4G RC 4WD Brushless High-Speed Off-Road Car Model with Aluminum Chassis

ZD Racing BX-12 1/12 Scale 2.4G RC 4WD Brushless High-Speed Off-Road Car Model with Aluminum Chassis (RTR Version/Orange-Blue/Turquoise) Product In...

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Original price $179.99 - Original price $179.99
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$179.99
$179.99 - $179.99
Current price $179.99
Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99

WL 1/64 Scale APP-Controlled Fully Proportional FPV Mini RC Car with WiFi Module and 3-Speed Modes

WL 1/64 Scale APP-Controlled Fully Proportional FPV Mini RC Car with WiFi Module and 3-Speed Modes(RTR Version) Product Information: Looking for...

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Original price $29.99 - Original price $29.99
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$29.99
$29.99 - $29.99
Current price $29.99
Original price $89.99 - Original price $89.99
Original price
$89.99
$89.99 - $89.99
Current price $89.99

3D Metal Mechanical Spiky Blue-Green Snake Assembly Model Kit-500+PCS

3D Metal Mechanical Spiky Blue-Green Snake Assembly Model Kit (500+PCS) Product Information: Are you ready to build a masterpiece? The 3D Metal Mec...

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Original price $89.99 - Original price $89.99
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$89.99
$89.99 - $89.99
Current price $89.99
Original price $49.99 - Original price $49.99
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$49.99
$49.99 - $49.99
Current price $49.99

ENJOMOR γ-Type Mirror-Reflective Thermal Air Stirling Engine Generator Model with LED Bulb String

ENJOMOR γ-Type Mirror-Reflective Thermal Air Stirling Engine Generator Model with LED Bulb String (Red/Blue) Product Information: Looking for a uni...

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Original price $49.99 - Original price $49.99
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$49.99
$49.99 - $49.99
Current price $49.99
Original price $999.99 - Original price $1,049.99
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$999.99 - $1,049.99
$999.99 - $1,049.99
Current price $999.99

CISON L4 OHV 20.5cc Inline 4-Cylinder 4-Stroke Water-Cooled Gasoline Engine Model Kit-Speed Up to 11500rpm

CISON L4-205-OHV 20.5cc Inline 4-Cylinder 4-Stroke Water-Cooled Gasoline Engine Model Kit for RC Cars-Speed Up to 11500rpm CISON L4-205 OHV L4 E...

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Original price $999.99 - Original price $1,049.99
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$999.99 - $1,049.99
$999.99 - $1,049.99
Current price $999.99
Original price $89.99 - Original price $89.99
Original price
$89.99
$89.99 - $89.99
Current price $89.99

SKYMECHMAN 1/18 WS-15 Turbofan Engine Model Kit-Build Your Own Turbofan Engine that Works

SKYMECHMAN 1/18 Scale 3D Printed WS-15 Functional Turbofan Engine Model Kit (50+ PCS) Product Information: Highly Detailed 1:18 Scale WS-15 Engi...

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Original price $89.99 - Original price $89.99
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$89.99
$89.99 - $89.99
Current price $89.99
Original price $499.99 - Original price $499.99
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$499.99
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Current price $499.99

T700 Turboshaft Engine Model Kit that Works - Build Your Own Turboshaft Engine - TECHING 1/4 Metal Simulation Electric Military Helicopter Turboshaft Engine Model DM136

TECHING×SKYMECHMAN 1/4 Scale Metal Simulation Electric Military Helicopter Turboshaft Engine Model Kit 🚨 Don’t Miss Out! IN STOCK & For Sale No...

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Original price $499.99 - Original price $499.99
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$499.99
$499.99 - $499.99
Current price $499.99
Original price $132.99 - Original price $132.99
Original price
$132.99
$132.99 - $132.99
Current price $132.99

C032 1/48 Scale UH-1 Huey 2.4G 6CH Flybarless RC Helicopter Model

C032 1/48 Scale UH-1 Huey 2.4G 6CH Flybarless RC Helicopter Model with Optical Flow Positioning (RTF Version/Army Green/Pink/Yellow-Blue/Vietnam Wa...

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Original price $132.99 - Original price $132.99
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$132.99
$132.99 - $132.99
Current price $132.99
Original price $29.99 - Original price $34.99
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$29.99 - $34.99
$29.99 - $34.99
Current price $29.99

V8 Engine Coffee Cup with Stainless Steel Liner Creative Gift

V8 Engine Coffee Cup with Stainless Steel Liner Creative Gift Notice: ✨ Custom Coffee Cups – Made Just for You! ☕ Want your own unique coffee cup?...

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Original price $29.99 - Original price $34.99
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$29.99 - $34.99
Current price $29.99
Original price $449.99 - Original price $449.99
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$449.99
$449.99 - $449.99
Current price $449.99

RW-V2 Mini V-Shape Double Cylinder Steam Engine Model for 70-130cm Steamship

RW-V2 Mini V-Shape Double Cylinder Steam Engine Model for 70-130cm Steamship (Forward and Reverse Rotation/Without Boiler) Product Information: RW-...

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Original price $449.99 - Original price $449.99
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$449.99
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Current price $449.99
Original price $956.99 - Original price $956.99
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Current price $956.99

RW-V4 Mini V-Shape 4-Cylinder Reciprocating Steam Engine Model for 90-150cm Steamships

RW-V4 Mini V-Shape 4-Cylinder Steam Engine Model for 90-150cm Steamship (Forward and Reverse Rotation/Without Boiler) Product Information: RW-V4 m...

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Original price $956.99 - Original price $956.99
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$956.99
$956.99 - $956.99
Current price $956.99
Original price $895.99 - Original price $995.99
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$895.99 - $995.99
Current price $895.99

FLYWING EC135 470 Class RC Helicopter Detachable Propellers ADAC 6CH 2.4G with H1 Flight Controller & GPS

FLYWING EC135 470-Class 2.4G 6CH 4 Detachable Propellers RC Simulation Helicopter Model with H1 Flight Controller and Beidou GPS Positioning (RTF...

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Original price $895.99 - Original price $995.99
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Current price $895.99
Original price $69.99 - Original price $69.99
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$69.99
$69.99 - $69.99
Current price $69.99

3D Metal Mechanical Butterfly Music Box Model Kit

3D Metal Mechanical Butterfly Music Box Model Kit (300PCS+/Purple) Product Information: Unleash your creativity with this stunning 300+ piece mecha...

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Original price $69.99 - Original price $69.99
Original price
$69.99
$69.99 - $69.99
Current price $69.99
Original price $589.99 - Original price $599.99
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$589.99 - $599.99
$589.99 - $599.99
Current price $589.99

RETROL×OKMO 185 Micro Single-Cylinder 4-Stroke Gasoline Engine Model for Classic Vintage Tractor

Let’s know more about the story! Click Here to Read Blog! RETROL×OKMO 185-Type Micro Single-Cylinder 4-Stroke Gasoline Engine Model for Class...

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Original price $589.99 - Original price $599.99
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$589.99 - $599.99
$589.99 - $599.99
Current price $589.99
Original price $599.00 - Original price $599.00
Original price
$599.00
$599.00 - $599.00
Current price $599.00

6-Speed Power Shift Transmission for CISON V8 Engine Model with High/Low Transfer Case

CISON 6-Speed Power Shift Transmission + High/Low Transfer Case Kit for CISON V8 Engine Model Product Information: Upgrade your RC model car with t...

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Original price $599.00 - Original price $599.00
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$599.00
$599.00 - $599.00
Current price $599.00
Original price $99.99 - Original price $99.99
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$99.99
$99.99 - $99.99
Current price $99.99

1/14 Scale 2.4G U.S. Willys RC Simulation Off-Road Car Model with Dual-Speed Switching

1/14 Scale 2.4G U.S. Willys RC Simulation Off-Road Car Model with Dual-Speed Switching  Product Information: Experience the thrill of military off-...

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Original price $99.99 - Original price $99.99
Original price
$99.99
$99.99 - $99.99
Current price $99.99
Original price $169.99 - Original price $169.99
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$169.99
$169.99 - $169.99
Current price $169.99

1/16 Scale 2.4G U.S. M8 Self-Propelled Howitzer RC Simulation Tank Model with Sound and Lights, Telescoping Smoke, Dual-Speed Modes

1/16 Scale 2.4G U.S. M8 Self-Propelled Howitzer RC Simulation Tank Model with Sound and Lights, Telescoping Smoke, Dual-Speed Modes (RTR Version) P...

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Original price $169.99 - Original price $169.99
Original price
$169.99
$169.99 - $169.99
Current price $169.99
Original price $649.99 - Original price $659.99
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$649.99 - $659.99
$649.99 - $659.99
Current price $649.99

RETROL HM-01 Hit and Miss Stationary Engine Full Set with Transport Cart Frame

RETROL HM-01 Hit and Miss Stationary Engine Full Set with Transport Cart Frame SKU: 3481143 ×1Base Equipment Box + Fuel Tank + Oil Pipe Access...

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Original price $649.99 - Original price $659.99
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$649.99 - $659.99
$649.99 - $659.99
Current price $649.99
Original price $299.99 - Original price $549.99
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$299.99 - $549.99
$299.99 - $549.99
Current price $299.99

Upgraded Aluminum Engine Stand for TOYAN FS-V800WGPC Engine Model

Upgraded Aluminum Engine Stand for TOYAN FS-V800WGPC Engine Model Product Information: Upgrade your TOYAN FS-V800WGP engine model with this all-i...

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Original price $299.99 - Original price $549.99
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$299.99 - $549.99
$299.99 - $549.99
Current price $299.99
Original price $1,449.98 - Original price $1,649.98
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$1,449.98 - $1,649.98
$1,449.98 - $1,649.98
Current price $1,449.98

TOYAN FS-V800WGPC V8 Engine With Starter Kit, Stand and Accessories-One Key Start

TOYAN FS-V800WGPC V8 Engine With Starter Kit, Stand and Accessories-One Key Start Product Information: No extra components needed - just pure me...

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Original price $1,449.98 - Original price $1,649.98
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$1,449.98 - $1,649.98
$1,449.98 - $1,649.98
Current price $1,449.98
Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99

M18 Premium Stirling Engine Model – Water-Cooled Miniature Gasoline Motor with Gear Pump & Water Tank

M18 Premium Stirling Engine Model – Water-Cooled Miniature Gasoline Motor with Gear Pump & Water Tank Product Information: The M18 Miniature G...

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Original price $329.99 - Original price $329.99
Original price
$329.99
$329.99 - $329.99
Current price $329.99
Original price $109.99 - Original price $139.99
Original price
$109.99 - $139.99
$109.99 - $139.99
Current price $109.99

Steampunk Mechanical War Spider 3D Assembly Model Kit – Build Your Own Industrial Arachnid Artillery

NOTE:  Weapons Accessories need to be purchased separately!             One War Spider needs to be equipped with two weapons! Steampunk Mechanical...

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Original price $109.99 - Original price $139.99
Original price
$109.99 - $139.99
$109.99 - $139.99
Current price $109.99