GOOFIT
CDI Unit for Yamaha 8HP 9.9HP 4-Stroke Outboard Ignition Module 68T-85540
CDI Unit for Yamaha 8HP 9.9HP 4-Stroke Outboard Ignition Module 68T-85540
5.0 / 5.0
(1) 1 total reviews
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Product Overview
Upgrade your outboard’s ignition reliability with the GOOFIT 68T-85540 CDI unit. Designed for 8HP and 9.9HP 4-stroke engines, it delivers strong, consistent spark energy for quick starts, smooth idling, and dependable performance in harsh marine environments.
Product Compatibility
| Category | Details |
|---|---|
| OEM Part Number | 68T-85540-00 |
| Engine Type | 4-Stroke Outboard Motors |
| Horsepower Range | 8HP / 9.9HP |
| Yamaha Models | F8, F9.9 |
| Series Compatibility | Yamaha 4-Stroke Portable Outboard Series |
| Other Fitment | Compatible with Yamaha-based or aftermarket equivalent engines (verify OEM number before purchase) |
Specifications
| Specification | Details |
|---|---|
| Product Type | CDI (Capacitor Discharge Ignition) Unit |
| Technology | Capacitive Discharge Ignition (CDI) |
| Material | Marine-grade metal + heat-resistant polymer |
| Waterproofing | Fully sealed housing |
| Ignition Output | High-energy spark output |
| Installation | Plug-and-Play / Bolt-on |
| Application | Marine Outboard Ignition System |
Key Features
- Fast & Reliable Starting – Delivers strong spark energy for instant ignition
- Smooth Engine Operation – Ensures stable idle and consistent acceleration
- Marine-Grade Protection – Sealed against water, salt spray, and dust
- Efficient Combustion – Optimized timing improves fuel efficiency and reduces emissions
- Direct OEM Replacement – Easy installation with factory-style connectors
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Fitment FAQ
Will this part fit my specific model and year?
This CDI ignition module is intended for Yamaha 8HP 9.9HP 4-Stroke Outboard Ignition Module 68T-85540. It is best matched to original part number(s) 68T-85540, 68T-85540-00. Key physical/spec details from the product data include 68T, 8HP, 9.9HP. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 68T-85540, 68T-85540-00 before purchase. For this CDI ignition module, also compare the AC/DC ignition type, plug count, pin layout, limiter type, stator pickup compatibility, and mounting space. This is especially important for Yamaha models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this CDI ignition module for machines outside the listed compatibility, or for units with different AC/DC ignition systems, pin layouts, plug counts, or pickup-signal requirements. If your original part number does not cross-reference with 68T-85540, 68T-85540-00, treat the fitment as unconfirmed. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the AC/DC ignition type, plug count, pin layout, limiter type, stator pickup compatibility, and mounting space. Confirm OEM/cross-reference number(s): 68T-85540, 68T-85540-00. Recheck listed specs such as 68T, 8HP, 9.9HP. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
My Yamaha T8 wasn��t firing and I replaced the CDI with this unit. Same wire colours and fit perfectly. Motor started right up. I will report back if I have any issues but so far so good.