Water type
Freshwater + Marine
Fits
Fluval Evo 52 L kit, Fluval Spec 60 L kit, Fluval Flex 57 L kit
Part no.
A14677
Genuine part
Yes, genuine Fluval
Fluval SEA EVO Replacement Motor Unit
The drive unit inside the Fluval Sea Evo 52L's built-in pump. This is the replacement motor and impeller assembly for the circulation pump built into the Fluval Sea Evo 52L aquarium kit (SEA49) – the part to order when flow drops off or the pump starts running noisy, rather than replacing the whole tank.
It's the same drive unit Fluval uses across its compact all-in-one kits of this size, cross-referenced internationally as Fluval part A14677 (also sold as the WP1500 circulation pump) and shared with the Evo 13.5 US gal, Flex 15 US gal and Spec 16 L kits, which use the same pump housing.
Key features
- Genuine Fluval replacement – restores full rated flow to a tired or clogged Evo 52L pump.
- Motor and impeller as one unit – no need to source the impeller separately.
- Shared part across the range – the same drive unit used in the Evo 13.5 US gal, Flex 15 US gal and Spec 16 L kits.
- Quick swap – replaces into the existing pump housing without new plumbing.
Will it fit my kit?
Fits the Fluval Sea Evo 52L Nano Kit (SEA49) circulation pump, and the equivalent-size Fluval Evo, Flex and Spec kits that share the same housing. It replaces the motor and impeller only – the outer pump housing, output nozzle and intake strainer are not included and are sold separately if damaged.
Specifications
| Fits | Fluval Sea Evo 52L Nano Kit (SEA49) built-in circulation pump |
|---|---|
| Also fits | Equivalent Evo, Flex and Spec kits sharing the same pump housing |
| Cross-reference | Fluval part A14677 (WP1500 circulation pump/motor) |
| Component | Motor and impeller assembly |
| Water type | Freshwater and marine |
Suitable for, and not suitable for
Suitable as a spare for a Sea Evo 52L kit with reduced flow, a noisy pump, or a seized impeller. Not suitable as a stand-alone circulation pump – it's a drive unit for the Evo's integrated housing, not a separate submersible pump for other tanks.
What's included
Motor and impeller assembly only. Pump housing, output nozzle, intake strainer and mounting bracket are not included.
Warranty and delivery
Covered by Fluval's standard replacement-parts warranty against manufacturing defects, in addition to your rights under Australian Consumer Law.
Common questions
How do I know if the motor needs replacing rather than just cleaning?
Try a clean and descale first – mineral build-up is the more common cause of reduced flow. If flow stays low, or the pump is noisy or won't spin after cleaning, the motor and impeller are the next thing to check.
Does this include the impeller?
Yes – motor and impeller are supplied as one assembly.
Will this fit my Fluval Flex?
It fits the equivalent-size Flex kits that share this pump housing (around the 15 US gal / 57 L size). Check your Flex model's pump housing against this unit before ordering, since Fluval's Flex range spans several sizes with different pumps.




