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JZGRDN ECU ECM Box Review: Compatible Replacement for Sea Doo ECUs?

JZGRDN CDI ECU ECM Box 278-001-496, 278-000-916, 278-001-796 Compatible with Sea Doo GS, GTI, GTI LE, GTS 1997-2004
4.8
[Direct Fit Replacement]  Engine control unit designed to replace factory ECU for seamless installation and reliable performance.
[Wide Model Compatibility]  Compatible with Sea Doo GS, GTI, GTI LE, GTS models from 1997–2005 for broad fitment.
[Multiple Part Numbers]  Includes OEM references 278-001-496, 278-000-916, 278-001-796, 278-000-930 for easy identification.
[Brand New Condition]  Factory-new unit ensures dependable functionality and extended service life.
[Ready-to-Install Package]  Ships with one ECU ECM Box, ready for immediate installation and marine use.
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Personal watercraft engine electronics designed as direct replacements for specific Sea Doo models, the JZGRDN ECU ECM Box ensures correct part-number compatibility. Owners gain reassurance from a new-condition unit that matches several OEM references. Will it fit the exact Sea Doo year and model in your garage?

⚡ At a Glance
  • Engine Control: Part-number matched ECU intended for engine management on listed Sea Doo models
  • Best for: Sea Doo owners and technicians needing a direct replacement for listed years and models
  • Not ideal for: Sea Doo models outside the specified year ranges or units with different part numbers

Brand new ECU ECM box listed with multiple OEM part numbers for fitment. Package includes one ECU ECM Box ready for installation.


Correct fit - with exact part-number compatibility

Listed references include 278-001-496, 278-000-916, 278-001-796 and 278-000-930, matching the OEM numbering scheme. Matching part numbers helps identify the intended replacement without modifying wiring or mounts.

Direct swap-in for units bearing those references, reducing uncertainty when ordering a replacement.

Ready replacement - with a new-condition unit

Condition is specified as new and the package contents list one ECU ECM Box. A new unit arrives without prior use or reconditioning.

Immediate availability for installation avoids time spent refurbishing an old or repaired unit.

Broad compatibility - with support for multiple Sea Doo models

Compatibility covers Sea Doo GS 1997-2002, GTI 1997-2005, GTI LE 2002-2004 and GTS 1997 & 2001 as provided in the description. Several model-year combinations are covered by the listed part numbers.

Suitable for owners of those specific models and years seeking a matching ECU reference.

✨ The 4 Key Reasons for JZGRDN ECU ECM Box
  1. Multiple OEM references - Reduces guesswork when identifying the correct replacement part
  2. New condition - Arrives unused, avoiding refurbishment or core exchange delays
  3. Single-unit package - Practical for workshop stock or one-off repairs
  4. Explicit model list - Quickly checks fitment against Sea Doo GS, GTI, GTI LE and GTS years
📋 Technical Details at a Glance
  • Category: Personal watercraft engine electronics
  • Part Name: ECU ECM Box
  • Brand: JZGRDN
  • Part Number(s): 278-001-496, 278-000-916, 278-001-796, 278-000-930
  • Compatible Models: Sea Doo GS, GTI, GTI LE, GTS
❓ Frequently Asked Questions

Q: Which Sea Doo models and years are compatible?

A: Compatibility is listed as Sea Doo GS 1997-2002, GTI 1997-2005, GTI LE 2002-2004 and GTS 1997 & 2001.

Q: Which part numbers does the unit match?

A: Supported references include 278-001-496, 278-000-916, 278-001-796 and 278-000-930 as provided in the description.

Q: What is included in the package?

A: The package contents are specified as one ECU ECM Box; no additional hardware or accessories are listed.

🏆 Our Verdict

Suitable for owners and technicians who need a direct, new-condition ECU replacement for specified Sea Doo GS, GTI, GTI LE and GTS models. Exact part-number matching across several OEM references simplifies identification and fitment. Overall value depends on sourcing and fitment, yet new condition and clear part references support reliable long-term repairability.