Sea-Doo Long Block 903 ACE 420090332 | Original Sea-Doo Spark Engine Block

The Sea-Doo Long Block 903 ACE with part number 420090332 is an original BRP engine block for selected Sea-Doo Spark, Spark Trixx, GTI 90 and GTS 90 models with Rotax 900 ACE engines. The long block serves as the central engine unit and is ideal for professional engine repairs, overhauls or replacement in cases of severe engine damage.

As an original BRP spare part, the engine block offers the highest fit, reliability and performance in accordance with the manufacturer's specifications.

What is a long block?

A long block is a pre-assembled engine unit that contains the most important internal engine components:

• Engine block
• Crankshaft
• Conrod
• Piston
• Cylinder
• Cylinder head
• Valve train

Existing peripheral components such as the intake, fuel injection system, alternator, starter, exhaust components and other accessories are generally transferred from the existing engine.

Original BRP quality

The long block 420090332 impresses with:

• Original Sea-Doo / BRP spare part
• Factory fit
• Designed for Rotax 900 ACE engines
• Maximum operational safety
• Long service life
• Optimal engine performance
• High reliability in marine applications
• Professional repair solution

Applications

Replacing the engine block may be advisable in cases of:

• Engine damage
• Piston failure
• Crankshaft damage
• Hydro-lock
• Overheating damage
• Severe wear
• Economical engine overhaul

Suitable for the following Sea-Doo models

Sea-Doo Spark 900 ACE

Sea-Doo Spark 900 HO ACE

Sea-Doo Spark TRIXX

Sea-Doo GTI and GTS

Advantages of an original engine block

• Direct replacement in manufacturer quality
• Perfect tuning for the Rotax 900 ACE engine
• High operational safety
• Original performance characteristics
• Long service life
• Optimal spare part availability
• Professional repair solution for engine damage

Important compatibility note

Part number 420090332 is used exclusively for certain Sea-Doo models with a Rotax 900 ACE engine. Before purchase, compatibility should be checked using the chassis number (VIN) as well as the existing engine part number.

Installation should be carried out exclusively by qualified workshops or experienced marine technicians.

Product features

• Original Sea-Doo / BRP spare part
• Part number: 420090332
• Long Block 903 ACE
• Pre-assembled engine block
• For Rotax 900 ACE engines
• Original BRP factory quality
• High reliability and service life
• For professional engine overhauls

Scope of delivery

• 1 x original Sea-Doo Long Block 903 ACE
• BRP part number 420090332

Frequently Asked Questions (FAQ)

Is this an original BRP engine block?

Yes, part number 420090332 is an original BRP spare part for selected Sea-Doo models.

For which engines is this long block suitable?

The long block was developed for Sea-Doo vehicles with Rotax 900 ACE engines.

What is included in the long block?

It includes the essential internal engine components such as the engine block, crankshaft, piston and cylinder head. External peripheral components are generally transferred.

Can the engine block be installed by yourself?

Replacing a long block requires extensive expertise, special tools and should be carried out by qualified specialist personnel.

Is this long block identical to the engine block of the newer Spark models?

No. Part number 420090332 is used for model years 2017 to 2021. Newer Spark models use different engine block versions and part numbers.