5GT-85540-00-00 | 4WV-85540-00-00 | 4x4 ATV Ignitor CDI Box Module Replacement
Direct Fit for 1998-2001 Yamaha Grizzly 600 4x4 (YFM600) Precisely fits: 1998–1999 YFM600FWA, 2000 YFM600F, 2000 YFM600FH Hunter Edition, 2001 YFM600F, and 2001 YFM600FH Hunter Edition 4x4 ATVs
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Product Details
Is your Yamaha Grizzly 600 suffering from a weak spark, intermittent misfires, sudden stalling, or failing to start completely? The factory CDI (Capacitor Discharge Ignition) box is a common failure point on older ATVs, especially after years of exposure to mud, water, and vibration. Restore reliable ignition timing and get your four-wheeler back on the trail with this OE Grade Direct Replacement Ignitor CDI Box ( 5GT-85540-00-00 / 4WV-85540-00-00 )
Engineered to match the exact factory specifications, this upgraded ignition module restores peak engine performance and eliminates frustrating starting issues. It features a rugged, weather-resistant outer shell and high-grade epoxy-encapsulated internal circuitry that actively dampens severe off-road vibrations and blocks out moisture. Designed for a true plug-and-play installation, it connects directly to your existing wiring harness with zero modifications or special programming required.
Condition: Brand New. Includes: (1) Ignitor CDI Box Module + extras (You will receive everything shown in the photos.)
Fitment Note: Direct replacement for 1998-2001 Yamaha Grizzly 600 (YFM600) 4x4 models, including Hunter Editions.
💡 PRO INSTALLATION TIP (Electrical Diagnostic):
Before installing your new CDI box, you MUST inspect your ATV's stator, ignition coil, and voltage regulator/rectifier! A faulty voltage regulator can send power spikes through the wiring harness, which will instantly fry this brand new CDI box. Also, ensure your battery is fully charged and all ground connections are clean and tight.
Key Features
- Direct OE Replacement: Replaces factory Yamaha part numbers 5GT-85540-00-00 and 4WV-85540-00-00 for a perfect, guaranteed fit.
- Plug-and-Play Setup: Features the exact factory pin layout (two connection ports) for immediate, error-free operation.
- Restores Ignition Timing: Provides a strong, consistent spark to eliminate misfires, backfiring, and hard-starting conditions.
- Extreme Durability: Fully sealed and potted internal components protect the delicate microprocessors from dirt, water, and heavy trail impacts.
Compatibility Chart
Fits the following vehicles:
| Make |
Model / Trim |
Year Range |
| Yamaha |
Grizzly 600 4x4 (YFM600FWA) |
1998 - 1999 |
| Yamaha |
Grizzly 600 4x4 (YFM600F) |
2000 - 2001 |
| Yamaha |
Grizzly 600 4x4 Hunter Edition (YFM600FH) |
2000 - 2001 |
Specifications
| Brand: |
OE Grade Direct Replacement / V2 |
| Replaces OE Part Numbers: |
5GT-85540-00-00, 4WV-85540-00-00 |
| Part Type: |
CDI Box / Ignition Control Module |
| Housing Material: |
Weather-Resistant Polymer |
| Connector Ports: |
Two Integrated Plugs (See photos for pin layout) |
Shipping & Policies
- ✓ FREE SAME DAY / NEXT DAY SHIPPING
- • Faster Shipping available - just ask for special requests!
- • International Buyers Welcome! (Please see note below).
- ✓ FREE 30-DAY RETURNS
- • If you are not satisfied, you may return the item for a full refund.
- ✓ eBay Money Back Guarantee
- • Buy with confidence. You are 100% protected with the eBay Money Back Guarantee.
Important Return Policy Note: To qualify for a free return, the item must be brand new, unused, and in its original condition. Electrical components that exhibit melted connector pins, scorch marks, or internal short-circuit damage caused by a faulty voltage regulator or improper installation cannot be accepted for a full return.
International Buyers – Please Note:
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
Thank you for your understanding.
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