420665951 Sea Doo TOPS Switch

Sea-Doo 420665951 TOPS Switch – Rotax 4-TEC | Replaces 420665950
Brand New Sea-Doo / Rotax TOPS Switch – Part Number 420665951
Replacement TOPS Switch for Sea-Doo Rotax 4-TEC engines.
Current Part Number: 420665951
Replaces / Supersedes: 420665950
 
This TOPS switch is used within the Rotax engine cylinder head / crankcase ventilation system across a wide range of Sea-Doo 4-TEC powered watercraft and Rotax-powered jet boats.
Ideal replacement where the original 420665950 TOPS switch has failed.
 
Product Details
Brand new replacement TOPS switch
Sea-Doo / Rotax OEM specification part
Current part number: 420665951
Direct replacement for 420665950
Suitable for numerous Sea-Doo 4-TEC engine applications 2006-2024
Used on naturally aspirated and supercharged Rotax engines
PWC and Rotax-powered jet boat applications
Supplied as pictured
 
Exploded Diagram Reference
Shown as No. 42 on our exploded diagram image.
Please note that diagram reference numbers can vary between individual model years and engine configurations. Always confirm compatibility using the 420665951 part number.
Fitment
420665951 is used across a large number of Sea-Doo Rotax 4-TEC applications including models from the:
GTI • GTX • GTR • RXT • RXP-X • Wake • Wake Pro • Fish Pro ranges
and selected Rotax-powered jet boats.
 
Because Sea-Doo used this component across numerous engine specifications and model years, we recommend confirming the part number from your existing component or contacting us with your model, year and engine horsepower before ordering if unsure.
 
Part Number Cross Reference
420665950 → 420665951
If your parts diagram or old component specifies 420665950, the current replacement part is 420665951.
 
JETSEAHUB Rotax Parts
JETSEAHUB specialises in Sea-Doo and Rotax 4-stroke PWC and jet boat engines, supplying replacement engine parts, servicing components and specialist Rotax repair parts throughout the UK and Europe.
Need help confirming fitment? Send us your Sea-Doo model, year and horsepower and we can help identify the correct part.
 
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