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Stirlingkit RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine
Stirlingkit RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine, view 2Stirlingkit RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine, view 3Stirlingkit RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine, view 4Stirlingkit RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine, view 5Stirlingkit RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine, view 6
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RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine Miniature Gas ICE Engine

$479.99–$518.99

In stock at stirlingkit.com

The RETROL and OKMO B01 is a 3.6cc vertical hit-and-miss gas engine model based on the Ball Hopper style, with a ball-top water tank. It has an internal oil cup and crank oil channel, mechanical ignition housed in a matching wooden box, and a solid wood base. It arrives ready to run and suits collectors of vintage engine shapes.

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Version
B01 Engine Only · B01 Engine with Extra Fuel Tank

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

Highlights

  • 3.6cc vertical hit-and-miss engine, ready to run
  • Ball-top water tank for cooling
  • Oil cup and crankshaft oil channel lubrication
  • Mechanical ignition with 1 AA battery in a wooden box
  • Optional extra fuel tank version

Best for

Collectors who want an unusual vertical hit-and-miss engine for display and occasional runs.

Things to consider

  • Output is about 0.2 PS, for demonstration rather than real work.
  • Needs 95 octane gasoline mixed with oil at 25:1 to 30:1.
  • Listed for ages 16 and up.

Key specs

Price$479.99–$518.99
Displacement3.6cc
Speed300 to 3,000 RPM
CoolingWater (ball-top tank)
Size20.4 x 10 x 18.4 cm
Weight1,600 g

Our take

A distinctive vertical runner with nice woodwork. Good for display-focused collectors.

RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine… at a glance

BrandStirlingkit
Price$479.99–$518.99
Options2 version s
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 $479.99, the RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine… 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 $10 to $39.99.

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

How do you start the B01?
By hand or with an electric drill. Ignition runs off a single AA battery.
What does the extra fuel tank version add?
A separate fuel tank, per the option name.
How much is the RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine…?
Stirlingkit lists it at $479.99–$518.99 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 B01 Ball Top Vertical Hit and Miss Engine…?
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 B01 Ball Top Vertical Hit and Miss Engine… 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 B01 Ball Top Vertical Hit and Miss Engine… come in?
Version : B01 Engine Only, B01 Engine with Extra Fuel Tank.
Where can I buy the RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine…?
The RETROL & OKMO B01 Ball Top Vertical Hit and Miss Engine… 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 B01 Ball Top Vertical Hit and Miss Engine… 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 B01 Ball Top Vertical Hit and Miss Engine… expensive?
At $479.99 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 $10 to $39.99.

More from Stirlingkit

Shop all Stirlingkit →

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