


Black FridayCyber Monday
20% off 20 best-sellers + 15% off everything else · Nov 14 – Nov 30
Black Friday Sale starts in
Unlock Free Gifts
The more you spend, the more gifts you unlock. Added to your package automatically. While stocks last.
Add $200 to your cart to unlock Level 1.




+ All Level 1 gifts
FREE 4 gifts · worth $67+
+ All Level 1 & 2 gifts
FREE 5 gifts · worth $94+You get every gift up to the highest level you reach. Order total counted after discounts.
Save the Dates
Still deciding? Add our sale dates to your calendar so you never miss the best price.
All sales end at 11:59 PM US Pacific Time. Using Apple or Outlook Calendar? Add all dates
💰 How to Save More This Black Friday
Every discount applies automatically at checkout. No code needed.
Lowest prices of the yearPrices go up when Black Friday ends on Nov 30.
Get yours while it’s in stockHigh-performance engines are built in small batches. If you miss this one, you may wait 2–3 months for the next.
Beat the Christmas rushOrder now so your gift arrives before the holiday shipping peak.
Deals Of The Day
Our 20 best-sellers at the lowest price of the year. Limited stock. Once they’re gone, they’re gone.
Prices in USD. Your checkout shows your local currency.
Win Your Order Free on Nov 27
Every order placed on Black Friday, Nov 27 is entered automatically. On Nov 28 at 11:27 AM (PT) we draw 1 lucky winner — who gets their whole order refunded, up to $1,127.
You're in! Watch your inbox on Nov 28.
No purchase necessary — enter free with your email. One entry per order or email. The winner is notified by email and announced on this page. Rules · Lucky Friday
*Duties & taxes included with free standard shipping. Shipping policy
Rare & Unique Model Engines
Unusual engines you won’t find in most shops, and only a few of each. Plus 15% off sitewide this Black Friday.
Limited stockTOYAN S100AT Nitro EngineTOYAN’s 5th-anniversary edition with a see-through combustion chamber.$349.99
Limited stockOKMO 185 Tractor EngineScaled from a 1950s Italian farm icon. Every engine has its own serial number.$589.99
Limited stockRETROL R33 V-Twin EngineA working 1/5 scale of the legendary Evolution V-twin motorcycle engine.$719.99
Limited stockHolt H75 Tractor EngineA miniature of the Holt 75 crawler engine that hauled artillery in WWI.$1,499.99
In Stock & Ready to Ship
Ships from a warehouse near you. No long wait, no customs hassle.
CISON V8 44 PRO
TECHING DM229 World's 1st Car
RETROL SE-01 Beam Engine
RETROL HM-01 Hit & Miss
SEMTO ST-NF2 Twin-Cylinder
RETROL SE-03 Steam Mill
RETROL SE-02 Steam Engine
TOYAN V8 FS-V800WGPC
CISON LS-52 Mini V8
MAD RC V8 Engine Kit
TECHING V8 Engine Kit
TECHING DM121 TurbofanFAQ
Questions? Email service@stirlingkit.com
Can I combine the 15% sitewide discount with Deals of the Day?
No. The 20 Deals of the Day models get 20% off (or their own bigger offer) instead of the 15% sitewide discount. Everything else gets 15% off. You can mix both in one order.
How do I get the free gift?
Spend $200+ to get a V8 Christmas tree ornament and a precision needle tip oil bottle. Spend $500+ and we add a Lister D mini building block model and a reverse-action tweezers set. Spend $1,000+ and you also get a V8 engine block pen & card holder. Gifts are added to your package automatically, no code needed. Order total counted after discounts, while stocks last.
How does the Lucky Friday free-order draw work?
Every order placed on Friday, Nov 27, 2026 (12:00 AM – 11:59 PM US Pacific Time) gets one entry automatically. You can also enter free, without buying, by leaving your email in the Lucky Friday box on this page. On Nov 28 at 11:27 AM PT we randomly draw 1 winner. If the winner placed an order, we refund the full amount they paid, up to $1,127; if the winner entered free, they get a $300 Stirlingkit gift card. We'll email the winner within 24 hours. Cancelled or refunded orders don't count. Open to customers 18+ where permitted by law.
Will I have to pay customs or import taxes?
No. With free standard shipping, duties and taxes are already included, so there is nothing extra to pay when your package arrives. Orders from our US and EU warehouses ship locally and don't go through customs at all. If you choose an express option at checkout, local duties may apply.
When does each sale end?
Early Black Friday ends Nov 13, Black Friday & Cyber Monday end Nov 30, the Christmas Sale ends Dec 15 and the Year-End Sale ends Dec 31 — all at 11:59 PM US Pacific Time.
Will prices drop lower later?
No. Black Friday & Cyber Monday prices are our lowest of the year. Christmas discounts will be smaller, so now is the best time to buy.
Will my order arrive before Christmas?
Models shipping from our US and EU warehouses arrive fastest. We'll post the last order dates for Christmas delivery here on Dec 1. Not sure? Email service@stirlingkit.com before you order and we'll check for you.
Is this a good gift for someone who has never built an engine?
Yes — several models are friendly to first-time builders. Our gift guide sorts them by budget and experience.
What builders say.
Helpful and useful.Mark, Hungary · CISON engine
Very good craftsmanship.Verified customer, United States
Stirlingkit is responsive.Kiplin Williams, United States · HM-01
Why Choose Stirlingkit?
We’re hobbyists too, so we get it: the excitement of opening a new kit, the patience of a long build, and the thrill when it fires up for the first time. Since 2019, we’ve been with builders from the first bolt to the first start.
Built by You. Inspired by You.
Meet the builders behind the engines. Their stories shape what we make next.
“The radio control hobby saved my life.”Dennis Dempsey · RC & engine YouTuberRead the story →
“Once you see a technique, it’s like planting a seed.”Joe Pie · Machinist since 1976Read the story →
“It’s rewarding, educational, and fun.”Prof. Simon Holland · Science filmmakerRead the story →
“I like celebrating the unusual and the overlooked.”Lawrie’s Mechanical Marvels · Steam train driverRead the story →