Selva Piranha Sail 9.9HP 4-Stroke Outboard Engine Extra Long shaft

SKU: 115095B-XL.
Ships in 2 – 4 Weeks

The Selva Piranha Sail 9.9HP Extra Long Shaft is a purpose-built auxiliary outboard for sailboats, combining Selva’s legendary lightness with robust propulsion and precision control. Powered by a 181 cc single-cylinder 4-stroke SOHC engine, it delivers strong, reliable torque at low rpm, perfect for docking, manoeuvring, or maintaining course in calm conditions. Its Extra Long Shaft (XL) design keeps the propeller deeply submerged, ensuring consistent thrust even when the vessel heels or pitches, while the Big-Foot gearcase supports a larger propeller for superior bite and efficiency. Quiet, fuel-efficient, and weighing just around 31 kg, the Piranha Sail is the perfect companion for cruising yachts and sailing schools that demand dependable, economical auxiliary power.

 

This item is available to order with an estimated 2–4 week lead time for delivery.

Sale price£1,979.00

Available Options:

  • XL. – Extra-long shaft
  • E.B.XL. – Electric start, Tiller handle steering, Extra Long shaft
  • EI.B.XL. –  Electric start with Battery, Tiller handle steering, Extra-long shaft
  • E.ST.XL. – Electric start, Remote control box, Extra-long shaft
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Options: XL.

Options

FREE Selva Expert Pre-Delivery Inspection

Our Selva approved technicians provide a detailed inspection video of your engine with every purchase.

Product Description

At its core, the Piranha Sail 9.9HP uses a high-efficiency 181 cc single-cylinder 4-stroke engine optimised for torque delivery at lower speeds. The overhead-camshaft configuration ensures precise valve timing and reduced mechanical friction, allowing smooth, linear power across the 5 500–6 000 rpm range. Its tuned intake and exhaust system improve combustion efficiency, while the large propeller diameter delivers more thrust per revolution—ideal for moving displacement hulls with minimal noise or vibration. The result is a remarkably efficient outboard that maintains steady push while sipping fuel, extending range and reducing emissions.

Built with Selva’s trademark precision, the Piranha Sail is compact yet exceptionally tough. The Extra Long Shaft provides deep propeller immersion for greater stability and smoother tracking, particularly on sailboats with higher freeboards. The reinforced Big Foot gearcase features a 13 : 25 ratio to convert torque into usable thrust with maximum grip. A sealed, pump-forced water-cooling system maintains constant operating temperature, while multi-layer marine coatings protect against corrosion in saltwater. Its light aluminium block and robust mounts absorb vibration without compromising strength, making it reliable for daily use in demanding coastal environments.

Starting is effortless through Selva’s recoil-assist system, and operation remains whisper-quiet thanks to its balanced crankshaft and insulated mountings. The twist-grip tiller provides precise throttle control for fine-tuned manoeuvring under sail or while entering tight marinas. The five-position manual trim allows users to adjust running angle for optimum propeller efficiency or shallow-water operation. Maintenance access is straightforward—oil, spark plug, and impeller checks can all be done without removing the cowl. Compact, light, and remarkably stable, the Piranha Sail 9.9 HP XL provides the comfort and confidence sailors expect from a trusted auxiliary engine. 

Specifications
Bore x Stroke (mm) 66 x 53
N° Cylinders 1
Induction 1 carburettor
Starting Manual or Electrical
Fuel Petrol (for specifications see the user manual)
Fuel tank (L) Separate 12
Lubrication Forced with mechanical lobe-pump
Ignition C.D.I. Digital
Ignition timing Electronic
Starting Manual or Electrical
Alternator Optional 12V/70W with rectifier on Manual start versionStandard 12V/70W with rectifier on Electric start version
Cooling Water cooled with pump-forced circulation
Exhaust Underwater through propeller
Steering system Bar with twist grip throttle control and steering friction adjustment or remote with remote control box
Type of remote control box provided (for the version with remote control box) Single lever with safety switch
Trim adjustment Manual (4 pos)with trim for navigation in shallow waters
Direction reversal Mechanical A-F-R
Transmission Ratio 13/27
Available shaft versions Extra Long Shaft (XL.)
Standard propeller type 3-bladed with built-in spring drive
Weight basic version (kg.) 32

Delivery

Delivery Information

At Marine Chandlery, we aim to get your orders to you as quickly and efficiently as possible. Here’s everything you need to know about our delivery process:

Dispatch Times

  • All goods are usually dispatched within 1 working day of your order being placed.
  • For orders placed over weekends or bank holidays, dispatch will occur on the next working day.

Delivery Costs

  • Delivery prices are calculated at checkout based on the size, weight, and destination of your order.
  • Rest assured, we strive to keep our shipping costs fair and transparent.
  • Unfortunately, our default UK delivery costs exclude Highlands, Ireland and Northern Ireland. Please contact us for a quote.

Important Information on Larger Items

  • Please note that outboards and inflatables are excluded from standard delivery pricing.
  • These items require specialised handling and are shipped via a bulky courier service. The shipping cost for such items will be confirmed during checkout or upon enquiry.

Delivery Partners

We work with reliable couriers to ensure your goods arrive safely and on time. Once your order is dispatched, you’ll receive tracking information to stay updated on its progress.