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Stirlingkit Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR
Stirlingkit Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR, view 2Stirlingkit Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR, view 3Stirlingkit Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR, view 4Stirlingkit Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR, view 5Stirlingkit Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR, view 6
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Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas Engine Model RTR

$639.99

In stock at stirlingkit.com

The Retrol and OKMO 916 is a 3.6cc ready-to-run hopper-cooled stationary engine model inspired by early 1900s farm engines. It has dual stainless steel flywheels, a honed cast iron sleeve, and a piston oil pump that circulates 5W-40 four-stroke oil instead of using pre-mix. Each unit is factory broken in and timed. It comes in red or green.

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Color
Red · Green

Price and stock from stirlingkit.com, refreshed daily. We may earn a commission if you buy.

Highlights

  • 3.6cc single-cylinder, ready to run
  • Open-top evaporative hopper cooling
  • Dual heavy stainless steel flywheels
  • Mechanical piston oil pump using 5W-40 four-stroke oil
  • Factory break-in, compression check, and timing calibration

Best for

Vintage engine collectors who want a desktop hit-and-miss style runner with real oiling.

Things to consider

  • The listing mixes pre-order and in-stock language; confirm ship timing with Stirlingkit.
  • A $100 launch discount code is mentioned; check whether it still applies.
  • Dimensions and weight are not in the text we have.

Key specs

Price$639.99
Displacement3.6cc
CoolingHopper (evaporative)
LubricationPump-fed 5W-40 4T oil
ColorsRed, green

Our take

A detailed, well-engineered hopper engine for collectors. Sort out availability first.

Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… at a glance

BrandStirlingkit
Price$639.99
Options2 colors
AvailabilityIn stock at stirlingkit.com
Couponstart
ReturnsThe about page lists a 30-day return or exchange. All returns need an RMA requested via…

Price check

At $639.99, the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… is toward the top of Stirlingkit's price range, whose 2,729 listed products run $0.54 to $11,000.

Similar items from other brands we track run $12.99 to $49.99.

Buying from Stirlingkit

Stirlingkit is a good source for hobbyists who want running miniature engines, Stirling and steam models, and build kits that most toy stores never carry. Skip it if you need fast, cheap returns, since everything goes through an emailed RMA to a Shenzhen address. Check the shipping method and warehouse at checkout first, because airmail can take 15 to 35 business days.

Shipping
Airmail takes 15 to 35 business days, EMS 5 to 8, and DHL Express 3 to 7. Shipping fees vary by product, warehouse, and destination and show on each product page and at checkout.
Returns
The about page lists a 30-day return or exchange. All returns need an RMA requested via service@stirlingkit.com, and items must include original packaging and accessories with no physical damage.
Warranty
The about page lists a 1-year warranty and lifetime customer support.

Read our full Stirlingkit review and shop all products →

Frequently asked questions

Does the OKMO 916 need pre-mixed fuel?
The listing says it uses a separate oil system with 5W-40 four-stroke oil rather than a 2-stroke pre-mix.
Is it in stock?
The listing says in stock with 24-hour dispatch but also uses pre-order wording, so confirm before ordering.
How much is the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas…?
Stirlingkit lists it at $639.99 on stirlingkit.com. We refresh prices throughout the day, but always confirm the final price at checkout.
Is there a coupon code for the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas…?
Stirlingkit's store-wide code start can be entered at checkout on stirlingkit.com. Stirlingkit sets the discount, and some items or sale prices may be excluded.
What is Stirlingkit's return policy?
The about page lists a 30-day return or exchange. All returns need an RMA requested via service@stirlingkit.com, and items must include original packaging and accessories with no physical damage.
How long does Stirlingkit take to ship?
Airmail takes 15 to 35 business days, EMS 5 to 8, and DHL Express 3 to 7. Shipping fees vary by product, warehouse, and destination and show on each product page and at checkout.
Does the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… come with a warranty?
Stirlingkit's published warranty terms: The about page lists a 1-year warranty and lifetime customer support.
What options does the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… come in?
Color: Red, Green.
Where can I buy the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas…?
The Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… is sold directly by Stirlingkit on stirlingkit.com. The Shop now button on this page goes straight to the product there, and code start can be applied at checkout.
Is the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… in stock?
Yes. Stirlingkit lists it as in stock on stirlingkit.com as of our latest check. Stock and prices refresh throughout the day.
Is Stirlingkit a legit store?
Stirlingkit is a good source for hobbyists who want running miniature engines, Stirling and steam models, and build kits that most toy stores never carry. Skip it if you need fast, cheap returns, since everything goes through an emailed RMA to a Shenzhen address. Check the shipping method and warehouse at checkout first, because airmail can take 15 to 35 business days. Our full Stirlingkit review covers shipping, returns and what to check before ordering.
Is the Retrol & OKMO 916 Engine Mini Hopper-Cooled Stationary Gas… expensive?
At $639.99 it is toward the top of Stirlingkit's range ($0.54 to $11,000 across 2,729 products), and similar items from other brands run $12.99 to $49.99.

More from Stirlingkit

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