Looking for the best Polaris Big Boss CDI modules? We’ve researched and listed the top 10 options to help you find the perfect replacement and get back to riding smoothly.
Your Polaris Big Boss CDI module is failing. It’s time to replace it. Get back to riding.
Choosing the right CDI box is crucial for your ATV’s performance. A faulty module can cause engine misfires or no spark at all.
We’ve done the research for you. Find the best CDI modules here. Your perfect replacement is just a read away.
List of Top 10 Polaris Big Boss CDI Modules
| Image | Title | Best For | Price |
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AOUTTUOA CDI Box Module Compatible with Polaris Sportsman 400 1994-1996 Big Boss 400 L 1994-1997 Xplorer 400 1998-2002 Xpress 400 L 1996-1997 Xpress 300 1996, Replace# 3085623 3084767 3085087 |
This product is perfect for ATV owners who need a reliable CDI box replacement. It fits many Polaris 400 series models from the 1990s. Easy to install. Just unplug the old one and connect this new one. It works with Sportsman, Xplorer, Xpress, and Big Boss ATVs. Ideal for fixing weak spark, no spark, or engine misfires. Made with durable parts. Works well in wet and rough conditions. A great choice for anyone needing a quick fix at home. |
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gnition CDI Box For Polaris Trail Blazer 250/Trail Boss 250/Scrambler 400 |
This CDI Box is perfect for owners of Polaris ATVs like the Trail Blazer 250, Trail Boss 250, and Scrambler 400. If your machine misfires or stalls, this reliable ignition box fixes the problem fast. Built with quality ST chips, it runs strong in any weather. Easy to install and FCC certified for safety. |
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DB Electrical CDI Module for Polaris Sportsman 500 4×4 HO 499 425 2002-2004 |
This CDI module is perfect for owners of Polaris ATVs like the Sportsman 500 4×4 HO, Big Boss 500, Ranger 500 4×4, and other compatible models from 2002-2004. It replaces faulty or worn-out ignition parts. Get back on the trail fast with this direct-fit replacement. |
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labwork 8 pin CDI Replacement for Polaris Big Boss Magnum 500 Scrambler 500 Sportsman 400 500 Replacement for 3087169 |
This CDI replacement is perfect for owners of Polaris Big Boss, Magnum 500, Scrambler 500, Sportsman 400, and Sportsman 500 ATVs. If your current CDI unit is damaged or not working, this 8 pin CDI is a direct replacement for part number 3087169. It delivers stable performance and is easy to install. Make sure to compare the photo with your old part before buying. |
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OXCANO 3084691 CDI Module Box for Polaris Sportsman 335, 500 6X6, 400, 500 |
Perfect for Polaris owners who need reliable power. This CDI Module replacement works with dozens of popular 1995-2002 models. |
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Caltric CDI Module Compatible with Polaris Sportsman 6X6 500 2000 2001 2002 3086982 |
This caltric cdi module is perfect for polaris owners with a sportsman 500 or scrambler 500. It is the top choice for anyone needing a reliable and aluminum fix for their quad. |
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Caltric CDI Module Compatible with Polaris Sportsman 335 335Cc 1999 2000 |
This product is a great match for owners with a Polaris ATV or UTV that acts up often. Use it to fix tired engine parts easily and get power back fast. |
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DB Electrical CDI Module for Polaris Sportsman 500 Magnum 425 4X4 1995-2003 |
Polaris owners need this part to fix their Sportsman 500 or 425. It fits MAGNUM and RANGER models from 1995 to 2003. |
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Caltric CDI Module Compatible with Polaris Sportsman 500 2000 Big Boss 500 6X6 2000 2001 2002 |
This CDI Module is perfect for Polaris owners who need a reliable replacement part. It’s ideal for models like the Sportsman 500, Big Boss 500, and Scrambler 500 from 2000 to 2002. |
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Caltric CDI Module Compatible with Polaris Scrambler 500 2X4 4X4 2000 2001 2002 |
This Caltric CDI Module suits owners of many old Polaris models. It is a strong choice for anyone who wants to fix a stuck engine fast. |
Detailed Reviews
Our guide showcases the top 10 Polaris Big Boss CDI Modules based on real expert reviews so you can trust the choice.
These reliable parts fix engine issues and ensure smooth power for every mile you ride.
Check the list below to make sure you pick the right module that fits your machine perfectly.
1. AOUTTUOA CDI Box Module Compatible with Polaris Sportsman 400 1994-1996 Big Boss 400 L 1994-1997 Xplorer 400 1998-2002 Xpress 400 L 1996-1997 Xpress 300 1996, Replace# 3085623 3084767 3085087

This CDI box module fits many Polaris ATVs from the 1990s. It works with models like the Sportsman 400, Xplorer 400, and Xpress 300. Make sure your model and year match before buying.
It replaces part numbers 3085623, 3084767, and 3085087. A bad CDI module can cause no spark, misfiring, or engine cutoff. This ignition module fixes these problems.
The CDI box is built to last with a sealed housing. It installs easily in about 10 to 15 minutes. Just plug it in and go.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for ATV owners who need a reliable CDI box replacement. It fits many Polaris 400 series models from the 1990s. Easy to install. Just unplug the old one and connect this new one. It works with Sportsman, Xplorer, Xpress, and Big Boss ATVs. Ideal for fixing weak spark, no spark, or engine misfires. Made with durable parts. Works well in wet and rough conditions. A great choice for anyone needing a quick fix at home.
Ready to Purchase?
2. gnition CDI Box For Polaris Trail Blazer 250/Trail Boss 250/Scrambler 400

Rev up your Polaris ATV with this reliable CDI box. It fits multiple models, from Trail Blazer 250 to Scrambler 400. Enjoy stable performance in any condition.
Made with quality materials and ST chips, this box ensures smooth operation. It’s FCC certified, so you know it’s safe and dependable.
| Pros | Cons |
|---|---|
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Perfect For:
This CDI Box is perfect for owners of Polaris ATVs like the Trail Blazer 250, Trail Boss 250, and Scrambler 400. If your machine misfires or stalls, this reliable ignition box fixes the problem fast. Built with quality ST chips, it runs strong in any weather. Easy to install and FCC certified for safety.
Ready to Purchase?
3. DB Electrical CDI Module for Polaris Sportsman 500 4×4 HO 499 425 2002-2004

This CDI module fits many Polaris models easily. It keeps your engine running strong and smooth.
The unit matches OEM specs exactly for reliable performance. It replaces old parts on the Sportsman and Big Boss well. You get a 100% new unit to fix your ATV right away.
Buy this aftermarket part today with full confidence. It offers great value and solid quality.
| Pros | Cons |
|---|---|
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Perfect For:
This CDI module is perfect for owners of Polaris ATVs like the Sportsman 500 4×4 HO, Big Boss 500, Ranger 500 4×4, and other compatible models from 2002-2004. It replaces faulty or worn-out ignition parts. Get back on the trail fast with this direct-fit replacement.
Ready to Purchase?
4. labwork 8 pin CDI Replacement for Polaris Big Boss Magnum 500 Scrambler 500 Sportsman 400 500 Replacement for 3087169

Labwork 8 Pin CDI is a direct replacement for Polaris ATVs. It fits models like Big Boss, Magnum 500, and Sportsman 400/500.
Stable performance ensures your ride runs smoothly. Easy installation saves time and effort. 8-pin interface matches specific Polaris models.
Replaces part number 3087169. Check photos to confirm compatibility with your old CDI. Reliable choice for Polaris owners.
| Pros | Cons |
|---|---|
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Perfect For:
This CDI replacement is perfect for owners of Polaris Big Boss, Magnum 500, Scrambler 500, Sportsman 400, and Sportsman 500 ATVs. If your current CDI unit is damaged or not working, this 8 pin CDI is a direct replacement for part number 3087169. It delivers stable performance and is easy to install. Make sure to compare the photo with your old part before buying.
Ready to Purchase?
5. OXCANO 3084691 CDI Module Box for Polaris Sportsman 335, 500 6X6, 400, 500

Stop engine trouble fast with this CDI Module Box. Get a strong part that works for a long time.
It fits big ATVs like Sportsman, Scrambler, and Magnum models. Use this box to keep your ride running strong now. A smart fix for a healthy engine and fast fun.
| Pros | Cons |
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Perfect For:
Perfect for Polaris owners who need reliable power. This CDI Module replacement works with dozens of popular 1995-2002 models.
Ready to Purchase?
6. Caltric CDI Module Compatible with Polaris Sportsman 6X6 500 2000 2001 2002 3086982

The Caltric CDI Module is compatible with Polaris Sportsman 6×6 500 models from 2000 to 2002. It also fits other Polaris vehicles like the Scrambler 500 and Magnum 500. This CDI Module ensures your vehicle runs smoothly.
Each order includes one CDI Module, made from durable aluminum. The OEM part number is 3086982, matching Polaris standards. It’s a reliable replacement for your vehicle’s needs.
We recommend comparing the posted picture to your current unit before buying. This ensures a perfect fit for your Polaris model.
| Pros | Cons |
|---|---|
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Perfect For:
This caltric cdi module is perfect for polaris owners with a sportsman 500 or scrambler 500. It is the top choice for anyone needing a reliable and aluminum fix for their quad.
Ready to Purchase?
7. Caltric CDI Module Compatible with Polaris Sportsman 335 335Cc 1999 2000

This CDI module fixes power loss in your machine. It fits your Polaris machine right away. You can ride strong and fast again.
This item works with many Polaris models from 1995 to 2002. It is a direct swap for most parts.
Just compare the photo to your old part. Order yours now to get back on the trail.
| Pros | Cons |
|---|---|
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Perfect For:
This product is a great match for owners with a Polaris ATV or UTV that acts up often. Use it to fix tired engine parts easily and get power back fast.
Ready to Purchase?
8. DB Electrical CDI Module for Polaris Sportsman 500 Magnum 425 4X4 1995-2003

Give your rugged ride a strong check up with this brand new CDI module unit. It is built to last and fits all Sportsman models made between 1995 and 2003. Experience smooth drive and steady power with this reliable car part.
This part is a perfect fit for your Big Boss and Ranger as well as the Magnum 425 series. We match these parts to the number on your current box for easy use on the trail. Enjoy better performance now that your ignition is running at its best.
Keep your mind at ease with our promise to back this item with a guarantee on your purchase. Order yours today to fix your engine and get back on the trail.
| Pros | Cons |
|---|---|
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Perfect For:
Polaris owners need this part to fix their Sportsman 500 or 425. It fits MAGNUM and RANGER models from 1995 to 2003.
Ready to Purchase?
9. Caltric CDI Module Compatible with Polaris Sportsman 500 2000 Big Boss 500 6X6 2000 2001 2002

Caltric CDI Module delivers reliable ignition performance for your Polaris ATV engine. This high-quality CDI unit replaces failed or faulty modules with durable aluminum construction.
Part Number 3086982 ensures perfect fit. Works with multiple Polaris models. Easy installation process.
Sportsman 500 6X6, Scrambler 500, Big Boss 500 6×6 owners will find this CDI Module essential for smooth engine operation. Compatible with 2000-2002 model years including Magnum 500 4×4 variants. Simply compare the posted picture with your existing unit before ordering.
This replacement CDI prevents engine stalling and improves ignition timing. Order now to restore your Polaris ATV performance.
| Pros | Cons |
|---|---|
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Perfect For:
This CDI Module is perfect for Polaris owners who need a reliable replacement part. It’s ideal for models like the Sportsman 500, Big Boss 500, and Scrambler 500 from 2000 to 2002.
Ready to Purchase?
10. Caltric CDI Module Compatible with Polaris Scrambler 500 2X4 4X4 2000 2001 2002

The Caltric CDI Module is a reliable replacement part for your Polaris vehicle. It is compatible with multiple models, ensuring a perfect fit. This module is a must-have for Polaris owners.
Made from high-quality aluminum, it is durable and long-lasting. The part number 3086982 ensures you get the right component.
With this CDI Module, you can restore your vehicle’s performance. It is easy to install and matches the original unit. Order now and get your Polaris running smoothly again!
| Pros | Cons |
|---|---|
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Perfect For:
This Caltric CDI Module suits owners of many old Polaris models. It is a strong choice for anyone who wants to fix a stuck engine fast.
Ready to Purchase?
Buying Guide
Get back on the trail fast.
Pick the correct CDI box for your Big Boss.
Easy setup makes your ride better.
ATV fans enjoy fixing engine cuts with a new part. They plug it in and the ride feels smooth. Everyone likes saving time with simple designs.
- Compatibility: Check your model year before buying. AOUTTUOA works on Sportsman and Xplorer models. Most units cover years between 1994 and 2002.
- Part Numbers: Find the old number on your CDI box. Many use numbers like 3085623, 3086982, or 3087169. This ensures you get the exact match.
- Durability: Choose parts with a sealed metal housing. Strong materials prevent damage from weather and use. Your new unit will last longer.
- Installation: Look for a box that fits easily. Most replacements take ten to fifteen minutes to install. Plug it in and start your ride.
- Engine Specs: Make sure the box fits your engine size. Units support 400 cc and 500 cc engines effectively. Match the specs to your machine.
- Performance: A bad box causes a hard ride. A new one fixes engine misfiring and cuts. Enjoy steady power and safety on every trip.
- Brand Names: Check that the brand fits your needs. Labels like AOUTTUOA and Caltric offer solid builds. Trusted names make a better choice.