20% OFFLoved by 400K+ Engine FansPerfect Gift for Engine LoversLimited StockLowest Price of the Year20% OFFLoved by 400K+ Engine FansPerfect Gift for Engine LoversLimited StockLowest Price of the Year
Prices in USD. Your checkout shows your local currency.
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.
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
Free Tracked ShippingOn most models, worldwide
Duties IncludedNo fees on delivery*
2–5 Day DeliveryFrom US & EU warehouses
Secure CheckoutPayPal, cards & Klarna
*Duties & taxes included with free standard shipping. Shipping policy
Collector’s Corner
Rare & Unique Model Engines
Made in small batches and rarely restocked, these are the engines collectors keep for a lifetime. Stock is limited, and once they’re gone, they may not return.
Can I pay in installments during the Black Friday Sale?
Yes! You can split any order into 4 interest-free payments at checkout using Klarna or PayPal Pay in 4. Available for US, UK, and eligible international buyers with no hidden fees or extra interest.
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.
Do pre-order engines get the Black Friday discount?
No. Pre-order engines already have their own special pre-order price, which is the lowest price that model will ever have, so they aren’t included in the Black Friday discounts. Once the pre-order period ends, the price goes up, so don’t miss it.
What if the price drops after I buy?
It shouldn’t. Black Friday & Cyber Monday prices are our lowest of the year, and Christmas discounts will be smaller. But if the same item (same model and version) drops to a lower price on stirlingkit.com before Dec 31, 2026, email service@stirlingkit.com with your order number and we’ll refund the difference to your original payment method.
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.
Don’t Miss Out on Black Friday Deals
Leave your email for exclusive flash deal alerts, gift tier updates, and a reminder before the sale ends.
Thanks! You’re in. Watch your inbox for exclusive deals.
★★★★★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.
No. 01Holt H75 Tractor Engine1914 · USA12cc 4-cylinder · Brass & stainlessView More →
No. 02OKMO 185 Tractor Engine1950s · Italy3.6cc single · Serial-numberedView More →
No. 03RETROL R33 V-Twin EngineEvolution V-twin · 1/5 scale4.2cc OHV · Brass & stainlessView More →
No. 04TOYAN S100AT Nitro EngineTOYAN 5th Anniversary Edition3.5cc 4-stroke · See-through chamberView More →
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 Turbofan
“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 →