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Description
8-Piece Exhaust Manifold Bolt 3904446 for Cummins & Volvo Excavator EnginesReplacement part number: 3904446, SA 3904446 Fit For Cummins Engine: 4B3. 9, 6B5. 9, 6C8. 3, B3. 3, B3. 9 G, B4. 0 CM2620 B154B, B4. 5, B4. 5 CM2220 B186B, B4. 5 CM2350 B129B, B4. 5 CM2350 B147B, B4. 5 CM2620 B158B, B4. 5 CM2620 B180B, B4. 5 RGT, B5. 9 G, B5. 9 GAS PLUS CM556, B5. 9 LPG PLUS CM556, B6. 7 CM2350 B121B, B6. 7 CM2350 B135B, B6. 7 CM2350 B136C, B6. 7 CM2350 B157C, B6. 7 CM2450 B177C, B6. 7 CM2670 B153B, B6. 7 CM2670 B167B, B6. 7 G CMOH6.
Replacement part number:
3904446, SA 3904446Fit For Cummins Engine: 4B3.9, 6B5.9, 6C8.3, B3.3, B3.9 G, B4.0 CM2620 B154B, B4.5, B4.5 CM2220 B186B, B4.5 CM2350 B129B, B4.5 CM2350 B147B, B4.5 CM2620 B158B, B4.5 CM2620 B180B, B4.5 RGT, B5.9 G, B5.9 GAS PLUS CM556, B5.9 LPG PLUS CM556, B6.7 CM2350 B121B, B6.7 CM2350 B135B, B6.7 CM2350 B136C, B6.7 CM2350 B157C, B6.7 CM2450 B177C, B6.7 CM2670 B153B, B6.7 CM2670 B167B, B6.7 G CMOH6.0 B125, B6.7O CM3580 B193B, C GAS PLUS CM556, D4.0 CM2620 D103B, D4.5 CM2620 D104B, D6.7 CM2670 D102B, F3.8 CM2350 F120B, F3.8 CM2350 F128C, F3.8 CM2350 F132B, F3.8 CM2350 F133C, F3.8 CM2620 F137B, F3.8 CM2620 F149B, F4.5 CM2620 F139B, F4.5 CM2620 F141C, G5.9, G5.9 CM558, ISB (Chrysler), ISB CM2150, ISB CM2150 E, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD4.5 CM2150 SN, ISB/ISD6.7 CM2150 B120, ISB/ISD6.7 CM2150 SN, ISB/ISD6.7 CM2880 B126, ISB4.5 CM2150, ISB4.5 CM2350 B104, ISB5.9G CM2180, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 CM2350 B103, ISBE CM2150, ISBE CM800, ISBE4 CM850, ISC CM2150, ISC CM554, ISC CM850, ISC8.3 CM2250, ISF2.8 CM2220 F122, ISF3.8 CM2220, ISF3.8 CM2220 AN, ISF3.8 CM2220 F103, ISF3.8 CM2220 F110, ISF3.8 CM2220 F116, ISF3.8 CM2220 IAN, ISF3.8 CM2350 F109, ISL CM2150, ISL CM554, ISL CM850, ISL G CM2180, ISL8.9 CM2150 L110, ISL8.9 CM2880 L112, ISL8.9 CM2880 L140, ISL9 CM2150 SN, ISL9 CM2250, ISL9 CM2350 L101, ISL9 CM2350 L111, ISL9.5 CM2150 SN, ISL9.5 CM2880 L138, ISLE4 CM850, ISM CM570, ISM CM570/870, ISX CM570, ISX CM870, ISX CM871, ISX CM871 E, ISX12 CM2350 X102, ISX12 G CM2180 EJ, ISX12/ISX11.9 CM2250, ISX12N CM2380 X120B, ISX15 CM2250, ISX15 CM2250 SN, ISX15 CM2350 X101, ISZ13 CM2150 SN, ISZ13 CM2150 Z105, ISZ13 CM2150 Z106B
Application:
Fit for following models:
Hyundai Forklift: 180D-7E
Hyundai Wheel Loader: HL740-3, HL770-7A, HL770-9
Hyundai Excavator: R250LC-7, R320LC-7A, R320LC-9, R360LC-7A, R360LC-9, R800LC-7A
Komatsu Off-Road Truck: AFE48-CQ, AFE48-CU, AFE48-CX, AFE48-DB/DC, AFE48-DF
Volvo Excavator: EC210, EW170, EW180
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 2394 reviews
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Product Reviews
★★★★★ 5
Mak sure area is clean before you install
This works amazing, easy to use, great quality. Sticks down great, I will be ordering more for sure.
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Reviewed in the United States on April 29, 2026
★★★★★ 3
Looks good so far, will update once installed
Have not installed this yet, so this is only a first impression review. I bought it to use in the wheel well area on my truck, so I’ll update later once I actually get it on and see if it makes a real difference. So far it looks good out of the box and seems straightforward enough. One thing I’d recommend is making sure you have a sound deadening roller for install, because I would not try putting this on without one. Too early for me to say how well it works for road noise since it is not installed yet, but I wanted to post my initial thoughts for now and will update later.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Great product, very impressed
Looks good, adhesive grabs well, forms well to floor pans. Price is great will be ordering more again. It definitely deadened the tin can sound you can get.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Solid Product, lots of it too
Ive had the insane rattling from my subwoofer and the highway drone from my aftermarket exhaust, and this 80mil sound deadening mat was the exact fix I needed. The 36 sqft kit (which comes as 33 pieces) was plenty to fully cover my trunk, rear deck, and floorboards. Since it's a butyl-based material, there’s no awful asphalt smell, and it adhered incredibly well with just a simple roller.
The difference is honestly night and day. My bass hits so much tighter and cleaner now without the whole back end vibrating like a tin can. Even better, the cabin is significantly quieter at high speeds; that aggressive exhaust drone is finally muffled to a deep, tolerable purr. If you want an affordable way to upgrade your audio quality and actually hear your music on long drives, I highly recommend this! It took some weekend elbow grease, but the payoff is incredible.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Would recommend
Size: 10 sqft
I used this sound deadening material in my car during an audio and interior upgrade, and the difference was noticeable immediately. Road noise, vibrations, and rattling were reduced a lot, especially on the doors and floor panels. The car feels much quieter and more solid while driving now.
The material was easy to cut and apply, and the adhesive stuck very well without peeling up. It has a quality feel to it and conforms nicely around curves and tight areas. I also noticed my speakers sound cleaner and have better bass response after installing it.
For the price, this sound deadening material is a great value and definitely worth it if you want a quieter ride and better overall sound quality in your vehicle.
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Reviewed in the United States on June 6, 2026