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Description
Kawasaki MUFFLER ASSY49070-2004This genuine Kawasaki muffler assembly provides complete exhaust system replacement correct back pressure, maximum noise reduction and safe hot gas routing. Compatibility FA series (verify your model number before purchasing) FC series FH series FR series FS series FX series Important: Always verify your exact engine model number and serial number before purchasing. Kawasaki engine series share many part numbers but not all parts are interchangeable
This genuine Kawasaki muffler assembly provides complete exhaust system replacement — correct back-pressure, maximum noise reduction and safe hot gas routing.
✅ Compatibility
- FA series (verify your model number before purchasing)
- FC series
- FH series
- FR series
- FS series
- FX series
⚠️ Important: Always verify your exact engine model number and serial number before purchasing. Kawasaki engine series share many part numbers but not all parts are interchangeable between variants.
🛠️ Part Details
- OEM Part Number: 49070-2004
- Replaces: Verify with your Kawasaki dealer or engine manual
- Brand: Kawasaki — Genuine OEM
- Type: Original Equipment Manufacturer (OEM) replacement
⭐ Key Features
- Complete assembly ready to install — no modifications needed
- OEM back-pressure rating maintains correct engine breathing
- Heavy-duty construction for extended service life in outdoor conditions
- Mounting hardware included in most applications
- Spark arrester integrated where required by engine specification
🔧 What Problem This Solves
- Loud exhaust indicating cracks, rust or failed welds
- Exhaust leaks near the engine causing heat damage to surrounding parts
- Reduced engine power from exhaust restriction
📏 Specifications
- Part Name: Muffler Assembly
- Material: High-temperature steel construction
- Manufacturer: Kawasaki
- Condition: New — Genuine OEM
🔨 Installation
- Difficulty: Moderate
- Tools Required: Socket set (10–14mm), Torque wrench, Penetrating oil, Safety gloves
- Estimated Time: 20–40 minutes
- Tip: Always consult your Kawasaki engine service manual for torque specifications and step-by-step procedures.
💪 Why Choose This Part
OEM mufflers are tested for your engine's specific exhaust flow requirements — guaranteeing performance and compliance.
🛒 Order With Confidence
✓ Genuine OEM — Guaranteed Fit — This is a genuine Kawasaki OEM part backed by the manufacturer's quality guarantee. If you have any questions about compatibility, provide your engine model and serial number and our team will confirm fitment before you purchase.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Must have
These things a freaking AWESOME!
If you're doing a big sound deadner job, you need thees! The 3 different sizes are perfect for the different shapes in the floor pans. Well built, good quality and they have a nice weight to them. Just buy them and thank me later. For $15.00 you can't go wrong.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid.
This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush.
Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it.
If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable.
The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather.
One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with.
Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
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Reviewed in the United States on March 12, 2023
★★★★★ 4
Heavy-Duty That Works!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
This extreme sound deadening mat performs well for reducing road noise and vibration. It feels dense and adheres securely when properly applied. Once installed, it noticeably improves interior quietness.
Overall, it’s a strong choice for more serious sound insulation projects.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Good product, quite sticky I must say.
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Worked for my van insulation
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Reviewed in the United States on June 1, 2026