KingTech 18HP Vertical Shaft Engine - 550cc 4-Stroke OHV - Electric Start Motor Cast-Iron Bore
When your mower's heart gives out, drop in the KingTech 18HP Vertical Shaft Engine and bring it back to life. This 550cc 4-stroke OHV petrol motor packs serious grunt with smooth, dependable power that gets the job done every time. Built for ride-on mowers, this motor slots in where most Briggs & Stratton or Honda mounts sit - no fuss, just fit and fire. Designed for Aussie yards and conditions, it's got the torque to cut thick grass and the reliability to run season after season. If you want a straight-talking upgrade that just works, KingTech's got your back.
Key Features
- 18 Horsepower output delivers strong, steady performance for ride-on mowers.
- 550 cc 4-stroke OHV engine for efficient combustion and low fuel burn.
- Vertical shaft design ideal for mower decks and garden tractors.
- Electric start system with electronic ignition for quick, reliable starts.
- Cast-iron cylinder bore adds durability and long engine life.
- 1" (25.4 mm) output shaft with keyway for secure PTO connection.
- 8.7:1 compression ratio for balanced power and smooth operation.
- Mechanical governor maintains consistent engine speed under load.
- Transistorized magneto ignition for clean, spark-steady performance.
- Universal bolt pattern fits many Briggs & Stratton or Honda setups.
- Low-vibration balance reduces wear on mower frames and belts.
- 12-month manufacturer warranty backed by KingTech reliability.
Specifications
| Engine type | 4-stroke, single-cylinder OHV petrol engine |
| Displacement | 550 cc |
| Bore x Stroke | 94.5 mm x 78 mm |
| Compression ratio | 8.7 : 1 |
| Rated output | 13.2 kW @ 3600 rpm (18 HP) |
| Max torque | 39.5 Nm @ 2500 rpm |
| Shaft type | Vertical, 25.4 mm (1") keyway |
| Rotation | Counter-clockwise (PTO view) |
| Starting system | Electric start |
| Ignition | Transistorized magneto |
| Governor system | Centrifugal mechanical |
| Oil capacity | 1.5 L |
| Weight | 41 kg |
Installation & Bolt Details
* Mounting interface includes 3 through holes of O 8.8 mm and 1 blind hole of O 8.8 mm for secure attachment.
* Bolts for the solenoid valve are not required for installation.
Why Choose KingTech
The KingTech 18HP Vertical Shaft Engine isn't a gimmick - it's a proper workhorse built for real-world mowing. From weekend yard warriors to small-block operators, this motor drops in easy and runs hard without fuss. The OHV design keeps fuel use low and torque high, while the cast-iron bore handles heat and stress like a champ. Whether you're replacing a tired Briggs or reviving an old Honda setup, KingTech's direct-fit layout saves you time and tools. It's tough, straightforward, and backed by a 12-month warranty - exactly what you'd expect from a brand that builds for Aussie conditions. Power your mower with confidence.
Precision. Power. KingTech.
Delivery
This item is sold and shipped by an Everyday Market Partner. Delivery costs and estimated delivery timeframes are shown on the product page.
Returns
Returns or refunds for Everyday Market items can't be processed in-store. These items are sold and shipped by our Everyday Market Partners, so all returns must be arranged online via Feedback & Enquiry form.
Change of Mind Returns
You can request a change of mind return within 30 days of purchase if your item is in new condition. Items must be unused, undamaged, and returned in their original packaging, including all tags for clothing, footwear and accessories. Some items aren’t eligible for a change of mind return, including bulky items, personal or hygiene-sensitive products, perishables, custom or personalised items, e-gift cards, prepaid SIMs, and dangerous goods. If your change of mind return is approved, a return fee may apply and will be deducted from your final refund. For full details and exclusions, please see our Change of Mind Returns Policy.
Faulty or Damaged Returns
If your item is faulty or arrives damaged, please contact the Everyday Market Partner as soon as possible via Feedback & Enquiry form. Providing clear details and photos will help the Everyday Market Partner assess the issue and work with you to resolve it quickly. Your rights under the Australian Consumer Law still apply.