Barry Berghaus Verified Buyer
★
Total POS
Like the tittle says, total POS. Stripped and missing screw, not timed, won’t run. Spent hours trying to time, fix, find appropriate screws, and make it work. Nope.
RETROL
4-Stroke & Inline Engines SKU: 3581277
RETROL Vintage Horizontal Mill Engine Stationary Engine Model 4 Stroke Gasoline ICE G16
$749.99 USD
Engineering Summary
The RETROL Vintage Horizontal Mill Engine Stationary Engine Model 4 Stroke Gasoline ICE G16 is a 4-Stroke & Inline Engine precision-engineered by RETROL. Available for $749.99 USD with free worldwide tracked shipping, 30-day returns, and replacement parts support at Stirlingkit.
✓ Free Worldwide Shipping: Tracked air delivery in 5–14 business days.
✓ Missing Parts Guarantee: Free replacement parts dispatched within 7 days.
✓ 30-Day Risk-Free Returns: Full refund on unbuilt kits in original box.
Technical Specifications
2 Verified Parameters| 2T Engine Oil, 1 | 50 oil to gasoline |
|---|---|
| 2T Engine Oil (Mixed 1 | 50) |
Features, Architecture & Package Contents
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EXPLORE THE A16 PRE-ORDER →
RETROL G16 Horizontal Mill Engine: a ready-to-run, water-cooled 4-stroke gasoline stationary engine model inspired by the mill engines of early 20th-century Europe. Cast iron construction, a 225 mm flywheel and a classic red finish on a rosewood base make it a working engine you'll enjoy running and a display piece you'll be proud to show.
Configuration update: from February 2026, both the RETROL G16 and D16 ship with an electric drill starter adapter as standard, for easier and more reliable starting. The manual hand crank has been discontinued and is no longer included. See the RETROL G16 User Guide for how to start it with a drill.
Watch the RETROL G16 Run
Gasoline G16 or Diesel D16?
This engine is available in two versions: the RETROL G16 gasoline engine and the RETROL D16 diesel engine. Choose the version you want in the Power option above. Not sure which one suits you? This video walks through the differences.
Looking for the full diesel specifications? See the RETROL D16 Diesel Engine page.
RETROL G16 in Owners' Hands
Video by AJ Restorations
Slow running, video by reddrryder
RETROL G16 Features
Authentic Retro Design
Inspired by the stationary mill engines of early 20th-century Europe. Cast iron construction and a classic red paint finish give it a true vintage look and feel.
Precision Engineering
An integrated crankshaft and connecting rod for precision and strength, and an adjustable camshaft so you can set the gear clearance for quiet running and long gear life.
Strong, Steady Performance
Upgraded cylinder head machining gives the piston rings a better seal for stronger compression, and a larger carburetor intake helps the G16 run smoothly from slow idle to full power.
Thoughtful Upgrades
A separate oil cup for direct cylinder lubrication, an upgraded plunger water pump for reliable cooling, and copper-plated pipes with improved seals to keep everything leak-free.
Ready to Run
Comes with the CDI igniter, spark plug and electric drill starter adapter. Add fuel, 2T oil and a battery, and the RETROL G16 is ready to start.
A Collector's Display Piece
Mounted on a rosewood base, it looks as good on the shelf as it runs on the bench. A standout gift for vintage engine enthusiasts and collectors.
RETROL G16 Specifications (Gasoline Version)
| Item | Specification |
|---|---|
| Engine type | Horizontal 4-stroke, water-cooled gasoline engine |
| Material | Metal (cast iron) & wood |
| Color | Red |
| Cylinder bore × stroke | 22 mm × 24 mm |
| Cast flywheel | 225 mm diameter × 20 mm thick |
| Rosewood base | 410 mm × 180 mm |
| Form | Ready to run |
| Cooling | Water-cooled (plunger pump) |
| Starting method | Electric drill with starter adapter (included) |
| Ignition | CDI ignition |
| Spark plug | 1/4-32 ME8 spark plug |
| Lubrication | Separate oil cup + splash lubrication from oil mixed in the fuel |
| Fuel | 92 octane (RON) or higher gasoline |
| Engine oil / fuel mix | 2T engine oil, 1:50 oil to gasoline |
| Ignition power supply | 6–10V battery |
| Product dimensions | 41 × 18 × 25 cm |
| Product weight | 4.5 kg |
| Package dimensions | 48.5 × 25.5 × 33 cm |
| Package weight | 5.5 kg |
| Recommended age | 16+ |
RETROL G16 FAQ
Does the RETROL G16 come with a hand crank?
RETROL G16 orders placed from February 2026 come with an electric drill starter adapter instead of a hand crank. The hand crank has been discontinued.
What's in the RETROL G16 box, and what do I need to prepare?
In the box
- RETROL G16 engine (ready to run)
- Fuel tank
- Fuel pipe
- CDI igniter
- Electric drill starter adapter
- USB cable clip
- Instruction manual
Not included (please prepare)
- 92 octane or higher gasoline
- 2T engine oil (mixed 1:50)
- 6–10V battery (or a USB power bank)
- Cordless drill with a speed trigger
- Water or coolant
Is the RETROL G16 suitable for beginners?
Yes. The G16 arrives assembled and ready to run, and our RETROL G16 User Guide walks you through fueling, lubrication, drill starting and simple adjustments step by step.
Can the RETROL G16 blow smoke rings?
Yes, it's one of the G16's favorite tricks. Run it at around 800–1,000 RPM; the user guide shares a fuel tip for thicker rings.
Where can I buy RETROL G16 spare parts?
Replacement parts and upgrades, including the CDI igniter, Hall sensor, welded steel gear set, oil cup and drill starter adapter, are available on the RETROL G16 Engine Parts page.
Have a question about the RETROL G16?
Read the RETROL G16 User Guide, or contact our support team. We're happy to help.
Verified Builder Reviews (9)
Authentic feedback from hobbyists, machinists, and scale model engineers
4.56 / 5.0
★★★★★ (9 total)
Richard Butler Verified Buyer
★★★★★
RETROL Vintage Horizontal Mill Engine
Very nice engine, had a problem with the pick-up on the CDI ignition so I installed a micro switch with harden points in it (just use the white and black wires from the CDI). It runs perfectly. Very enjoyable engine to run.
William Burgess Verified Buyer
★★★★★
Good engine
The. best engine yet, starts easy and runs well. Hope the next 2 that are on order run as well as the one.
Boaz Levi Verified Buyer
★★★★★
Great engine !!
Works right out of the box. No issues, sounds excellent.
Kevin Carey Verified Buyer
★★★★★
Piston Ring Binding.
After running the engine for several hours I noticed the engine would start to bind up while warm. This would go away after the engine cooled. I took the engine apart and found the cylinder walls to be polished like a mirror from the rubber O rings. It seems four rings are too many. The two middle rings receive no oil after the cylinder walls become polished. I removed the two lower rings and found the engine runs just fine with no cylinder blow by. It still maintains full compression. I have always oiled the back of the piston before running. Oiling the back of the piston will keep both rings lubricated. If you need new rings the size is 1mm wire thickness by 22mm diameter.
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