JokerBoat Coster 420
Basic data
| Category: | RIB |
| Year of construction: | 2011 |
| Length: | 495 cm |
| width: | 218 cm |
| Depth: | 30 cm |
| Material: | PVC |
| Motorization: | Yamaha |
| Berth: |
Barendrecht, Netherlands
|
Specifications
Jokerboat Coster 420 ready for boating fun
This 2011 Jokerboat Coster 420 is a compact RIB that invites you to head out on the water at a moment’s notice. It combines the practical size of a 4.95-metre inflatable with the handling of a V-hull, making it pleasant to steer and stable even at higher speeds. With a beam of 2.18 metres, it offers surprisingly generous space on board, while the shallow draft of around 30 centimetres allows you to explore shallower areas, small mooring spots and quiet corners. This is exactly the type of Jokerboat suited to day trips, sporty cruising and watersports, as well as relaxed outings on lakes, canals and rivers.
On the transom is a 25 hp Yamaha outboard, a 1990s 2-stroke Autolube with electric start. Combined with the lightweight RIB concept, this delivers a lively character. The stated cruising speed is around 35 km/h and top speed around 50 km/h, making it interesting for anyone looking for a fast RIB without stepping up to a much heavier setup. The fuel tank holds 25 litres—ideal for a nimble day boat that lets you get out on the water for an afternoon or evening with ease.
Jokerboat Coster 420 now in the online auction. Everyone can bid up to and including 24 August 2026.
What makes this RIB so suitable for sporty boating?
The Jokerboat Coster 420 is built with a V-hull, and you notice that especially when you pick up the pace. It cuts cleanly through the water and responds directly to the steering wheel, so turns feel controlled and you can manoeuvre with confidence. The RIB design with PVC tubes adds extra buoyancy and stability at rest—for example when drifting or when someone steps aboard. That makes her not only fun for speed, but also comfortable for a day out with friends or family.
Which engine is fitted and what has been done recently?
She is equipped with a Yamaha 25 hp Autolube outboard with electric start and two cylinders. The engine is operational and a lot of attention has recently been given to maintenance, including ultrasonic cleaning of the carburettor, new spark plugs, a new impeller, replacement of engine oil and transmission oil, a new fuel filter and new gear lube oil. The lower unit has also been addressed and a new propeller fitted. In addition, a new battery was recently installed, connected to a 12V system with battery charger. All of this makes her attractive for buyers looking for a Jokerboat with a Yamaha outboard where many of the basics have already been taken care of.
Is a trailer included and what condition is it in?
This RIB comes with a road trailer supplied without registration. The trailer is tilting, single-axle and fitted with a winch, making launching and retrieval much easier. The trailer’s condition is described as reasonable, and the wheel bearings have been renewed. For anyone looking for a RIB with trailer to boat flexibly in different locations, this is a practical combination: store at home, drive to the slipway and go boating.
How has she been used and where has she been sailed?
This Jokerboat has been used on a variety of waters: inland waterways, canals and ditches, lakes, rivers, and also at sea. Her past as a former rescue boat adds an interesting piece of history, and also explains why this type of RIB is often chosen for its direct handling and manageable size. The boat has been used for day trips and sporty boating—exactly what a 25 hp RIB is made for.
On board you’ll also find a Boss MGR3508 marine audio system with two speakers, adding a bit of extra atmosphere to a day on the water. The tubes have been fitted with additional rubber on step areas and on the underside to help limit wear—an indication that practical use has been considered.
Anyone searching on BoatAuction for a Jokerboat Coster 420—a compact RIB with Yamaha 25 hp, electric start and trailer—will find this set an inviting option for the coming season. She is being offered because the owner is emigrating and the new location has less suitable waters. That makes this a great opportunity to give her a new cruising area, where she can do what she was built for: getting out on the water quickly, nimbly and with enjoyment.
VIEWING DAY INFORMATION
- The viewing day of this JokerBoat Coster 420 is on Saturday 22 August 2026 van 10:00 until 12:00 in Barendrecht (NL).
ADDITIONAL INFORMATION
- We advise making use of the viewing day.
- The boat is in a shed.
- This boat is registered in under number and needs to be transferred.
- This boat is being sold with a road trailer without license registration.
- This boat is sold under general auction conditions.
- This concerns a public auction, which means that the purchase cannot be returned based on the legal right of withdrawal.
| Brand | JokerBoat |
| Type | Coster 420 |
| Length | 495 |
| Width | 218 |
| Depth | 30 |
| Year of construction | 2011 |
| Material | PVC |
| Last antifouling treatment | 2023 |
| Hull shape | V-bottom |
| Control | Wheel |
| Rudder | N/A |
| Toilet | N/A |
| Bilge pump | Manual |
| Is a trailer included? | Yes |
| Number of engines | 1 |
| Is the engine operational | The engine is operational |
| Start typing | Electric |
| Maximum speed | kilometers per hour | 50 |
| Engine type | Outboard engine |
| Brand motor | Yamaha |
| Model engine | autolube |
| Power (hp) | 25 |
| Number of cylinders | 2 |
| Fuel | Gasoline |
| Tank capacity in liters | 25 |
| Bow thruster | n/a |
| Number of batteries present | 1 |
| Battery charger | |
| 12V |
| Type of trailer | Road trailer without license plate |
| What is the condition of the trailer | Reasonable |
| Tiltable | Yes |
| Number of axles | 1 |
Jokerboat Coster 420 ready for boating fun
This 2011 Jokerboat Coster 420 is a compact RIB that invites you to head out on the water at a moment’s notice. It combines the practical size of a 4.95-metre inflatable with the handling of a V-hull, making it pleasant to steer and stable even at higher speeds. With a beam of 2.18 metres, it offers surprisingly generous space on board, while the shallow draft of around 30 centimetres allows you to explore shallower areas, small mooring spots and quiet corners. This is exactly the type of Jokerboat suited to day trips, sporty cruising and watersports, as well as relaxed outings on lakes, canals and rivers.
On the transom is a 25 hp Yamaha outboard, a 1990s 2-stroke Autolube with electric start. Combined with the lightweight RIB concept, this delivers a lively character. The stated cruising speed is around 35 km/h and top speed around 50 km/h, making it interesting for anyone looking for a fast RIB without stepping up to a much heavier setup. The fuel tank holds 25 litres—ideal for a nimble day boat that lets you get out on the water for an afternoon or evening with ease.
Jokerboat Coster 420 now in the online auction. Everyone can bid up to and including 24 August 2026.
What makes this RIB so suitable for sporty boating?
The Jokerboat Coster 420 is built with a V-hull, and you notice that especially when you pick up the pace. It cuts cleanly through the water and responds directly to the steering wheel, so turns feel controlled and you can manoeuvre with confidence. The RIB design with PVC tubes adds extra buoyancy and stability at rest—for example when drifting or when someone steps aboard. That makes her not only fun for speed, but also comfortable for a day out with friends or family.
Which engine is fitted and what has been done recently?
She is equipped with a Yamaha 25 hp Autolube outboard with electric start and two cylinders. The engine is operational and a lot of attention has recently been given to maintenance, including ultrasonic cleaning of the carburettor, new spark plugs, a new impeller, replacement of engine oil and transmission oil, a new fuel filter and new gear lube oil. The lower unit has also been addressed and a new propeller fitted. In addition, a new battery was recently installed, connected to a 12V system with battery charger. All of this makes her attractive for buyers looking for a Jokerboat with a Yamaha outboard where many of the basics have already been taken care of.
Is a trailer included and what condition is it in?
This RIB comes with a road trailer supplied without registration. The trailer is tilting, single-axle and fitted with a winch, making launching and retrieval much easier. The trailer’s condition is described as reasonable, and the wheel bearings have been renewed. For anyone looking for a RIB with trailer to boat flexibly in different locations, this is a practical combination: store at home, drive to the slipway and go boating.
How has she been used and where has she been sailed?
This Jokerboat has been used on a variety of waters: inland waterways, canals and ditches, lakes, rivers, and also at sea. Her past as a former rescue boat adds an interesting piece of history, and also explains why this type of RIB is often chosen for its direct handling and manageable size. The boat has been used for day trips and sporty boating—exactly what a 25 hp RIB is made for.
On board you’ll also find a Boss MGR3508 marine audio system with two speakers, adding a bit of extra atmosphere to a day on the water. The tubes have been fitted with additional rubber on step areas and on the underside to help limit wear—an indication that practical use has been considered.
Anyone searching on BoatAuction for a Jokerboat Coster 420—a compact RIB with Yamaha 25 hp, electric start and trailer—will find this set an inviting option for the coming season. She is being offered because the owner is emigrating and the new location has less suitable waters. That makes this a great opportunity to give her a new cruising area, where she can do what she was built for: getting out on the water quickly, nimbly and with enjoyment.
VIEWING DAY INFORMATION
- The viewing day of this JokerBoat Coster 420 is on Saturday 22 August 2026 van 10:00 until 12:00 in Barendrecht (NL).
ADDITIONAL INFORMATION
- We advise making use of the viewing day.
- The boat is in a shed.
- This boat is registered in under number and needs to be transferred.
- This boat is being sold with a road trailer without license registration.
- This boat is sold under general auction conditions.
- This concerns a public auction, which means that the purchase cannot be returned based on the legal right of withdrawal.
| Brand | JokerBoat |
| Type | Coster 420 |
| Length | 495 |
| Width | 218 |
| Depth | 30 |
| Year of construction | 2011 |
| Material | PVC |
| Last antifouling treatment | 2023 |
| Hull shape | V-bottom |
| Control | Wheel |
| Rudder | N/A |
| Toilet | N/A |
| Bilge pump | Manual |
| Is a trailer included? | Yes |
| Number of engines | 1 |
| Is the engine operational | The engine is operational |
| Start typing | Electric |
| Maximum speed | kilometers per hour | 50 |
| Engine type | Outboard engine |
| Brand motor | Yamaha |
| Model engine | autolube |
| Power (hp) | 25 |
| Number of cylinders | 2 |
| Fuel | Gasoline |
| Tank capacity in liters | 25 |
| Bow thruster | n/a |
| Number of batteries present | 1 |
| Battery charger | |
| 12V |
| Type of trailer | Road trailer without license plate |
| What is the condition of the trailer | Reasonable |
| Tiltable | Yes |
| Number of axles | 1 |
