FATSAC Yamaha Jet Boat 21' Custom Ballast Bag - 725 lbs - Grey
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FATSAC Yamaha Jet Boat 21' Custom Ballast Bag - 725 lbs - Grey
Description
The FATSAC Yamaha Jet Boat 21' Custom Ballast Bag is purpose-built to fit the swim deck of 21' and 20' 6" Yamaha Jet Boats, delivering a precise 725-pound ballast load for optimal wake performance. Engineered as a semi-custom fit, this grey PVC bag is designed to sit securely in place when properly installed and filled, giving riders the added weight they need for surfing and wakeboarding behind their Yamaha vessel.
All necessary fittings are included right out of the box, so you can get on the water without hunting down additional hardware. FATSAC's reputation for durable, performance-grade ballast bags is backed by this rugged construction - featuring welded PVC cleats and a thoughtfully designed filling system. Follow the included instructions and QR code video guides carefully to ensure a safe, warranty-backed installation every time.
Key Features
- Yamaha-Specific Fit: Designed exclusively for the 21' Yamaha Jet Boat swim deck, compatible with 21' and 20' 6" models.
- 725 lb Ballast Capacity: Delivers 725 pounds of water weight to enhance wake size and shape for surfing and wakeboarding.
- Dimensions - 35" x 30" x 26": Precisely sized to sit flush and secure on the Yamaha swim deck when filled correctly.
- All Fittings Included: Comes with W730, 2x W731, and W749 fittings - no additional hardware required.
- 4 Welded PVC Cleats: Heavy-duty welded cleats on the bag allow for secure rope attachment to keep the bag locked in place.
- Compatible with S7090 Fill/Empty Pump: Works with the FATSAC S7090 pump system to fill and drain the bag (pump sold separately).
- Must Fill 100% with Water: Bag must be completely full to perform safely - partial filling can cause shifting, bag damage, and warranty void.
- Rope Securing System: Requires a 12' or longer rope routed through cleats and handles on both the top and bottom of the bag for proper securing - see FATSAC M1028 dock line.
- Air Bleed Valve: Fill with air first to position the bag, then pump with water and use the air release to purge all air for a complete, safe fill.
- Grey Finish: Clean, neutral grey colorway designed to complement Yamaha Jet Boat aesthetics.
Shipping
Ships free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.
What's Included
- FATSAC Yamaha Jet Boat 21' Custom Ballast Bag (Grey)
- W730 fitting
- W731 fittings (x2)
- W749 fitting
Why You'll Love It
FATSAC has been a trusted name in wake ballast for years, and this custom bag is a prime example of why serious watersports enthusiasts rely on their products. The semi-custom fit for Yamaha Jet Boats means you're not wrestling with a generic sack that shifts and slips - this bag is made for your specific boat. With 725 pounds of ballast capacity, you'll notice a real difference in your wake size, giving surfers and wakeboarders more to work with on every run.
The included fitting hardware and detailed instruction videos make setup straightforward, even for first-time ballast users. Built from durable PVC with welded cleats, this bag is engineered to hold up season after season when used and installed correctly. Whether you're chasing a cleaner surf wake or looking to push your wakeboarding sessions to the next level, this ballast bag is a smart, boat-specific investment that delivers real results.
Product Specifications
View Product Specs
| Model | C1046 |
|---|---|
| Compatible Boat | Yamaha Jet Boat 21' (21' and 20' 6" models) |
| Ballast Weight | 725 lbs |
| Dimensions | 35" x 30" x 26" |
| Material | PVC |
| Included Fittings | W730, 2x W731, W749 |
| Compatible Pump | S7090 (sold separately) |
| Recommended Rope | 12' or longer (M1028 dock line recommended, sold separately) |
| Color | Grey |
FAQ
What happens if I don't fill the bag 100% with water?
If the bag is not filled completely with water, it can shift on the swim deck and fall off the back of the boat - which is both dangerous and damaging. Partial filling also voids the warranty. Always fill the bag to 100% capacity, purging all air using the air release valve before use.
What boats is the C1046 ballast bag compatible with?
The C1046 is designed to fit the swim deck on Yamaha Jet Boats in the 21' and 20' 6" size range. It is a semi-custom fit, meaning it is not a universal bag - it is specifically shaped for this boat model.
Do I need to buy a pump separately?
Yes. The bag is compatible with the FATSAC S7090 pump to fill and empty the bag, but the pump is not included. You will need to purchase the S7090 separately to operate the ballast bag.
How do I properly secure the ballast bag?
Use a rope that is 12 feet or longer, routed through the welded PVC cleats and handles on both the top and bottom of the bag. The rope should be tied tightly around the bag itself - do not put any pulling tension directly on the cleats or handles. FATSAC recommends the M1028 heavy-duty marine dock line for this purpose.
What is the correct process for filling the bag?
First, fill the bag with air to give it shape and help you position it correctly on the swim deck. Once properly placed, use the pump to fill the bag with water. As water fills the bag, use the air release valve to bleed out any remaining air. Continue filling until the bag is 100% full with no air pockets remaining.
Will this void my warranty if I don't follow the instructions?
Yes. FATSAC explicitly states that not following the installation instructions and video guides will void the warranty. Be sure to review the instruction materials and QR code videos included with the bag before installation.
Thank you for trusting us with your order! This product is shipped directly from the manufacturing warehouse to get to customers all over the U.S. as soon as possible!
While many of our products are prepared and shipped out within 48 hours, some of our items are built to order or require custom pieces that could take 2-6 weeks to prepare before shipping! Please contact us at 888-884-2234 for a delivery ETA if you have a strict timeline.
Thanks!
Omaha Sports & Games Team
Returns & Refunds Policy
Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at service@omahasportsandgames.com.
If your return request is accepted, it will be up to you as the buyer to return the item in its original packaging, unworn and unused. You as the buyer will be responsible for paying the return shipping. We may be able to assist you in scheduling a pickup for return but the payment will still be your responsibility. You can always contact us for any return question at service@omahasportsandgames.com.
All products are subject to a minimum 15% restocking fee based on the quality of the returned product and packaging.
Items opened, tested, used, or any other non-new condition may be eligible for return based on the manufacturer's return policy.
Shipping Damages and Issues
You must inspect your order upon reception and refuse delivery if you see damage. DO NOT sign for delivery if there is apparent damage to the product. If you sign for the delivery and later claim shipping damage, there is very little we can do to help.
If your order does not require signing at delivery and is instead just dropped off at doorstep with damage, contact us immediately with photos of the damaged boxes.
If your item(s) is defective, damaged or if you receive the wrong item, contact us immediately so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, such as custom products, special orders or personalized items. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items, gift cards, or multiple product bundle discounts.
| Specification name | Specification Value |
|---|---|
| Color pattern | Gray |