See all parts that fit your 2018 2500
180W 8" db Series Single 4 ohm Marine Certified Subwoofer
• 360W Peak
• 180W RMS
• Polypropylene Cone Woofer
• Santoprene Rubber Surround
• Marine Certified
• Triple Vented 4-layer Kapton single 4 Ohm Voice Coil
2-Channel 110W Line Output Converter with Gain Controller for select 2011-2025 vehicles from Ram, Dodge, Jeep with Non-Amplified Systems
$93.99
List price $104.99
Install New Speakers in select 1999-2026 vehicles from Dodge, Ram, Jeep
$9.99
List price $15.99
Amplifier Integration Interface for select 2013-2023 vehicles from Ram, Jeep, Dodge
$419.00
List price $499.00
Amplifier Bypass Harness for select 2007-2021 vehicles from Ram, Dodge, Jeep
$29.99
List price $33.99
iDataLink Maestro KIT-RAM1 Dash Kit
Double DIN Dash Kit and Wire Harness for select 2013-2025 vehicles from Ram (Requires ADS-MRR or ADS-MRR2 module)
$159.99
List price $199.99
Double DIN Stereo Dash Kit and Harness for select 2013-2022 vehicles from Ram, Jeep, Chrysler
$20.99
List price $37.99
Vehicle Specific Audio Integration T-Harness for select 2013-2024 vehicles from Ram, Jeep, Dodge
$73.00
List price $129.00
JL Audio Stealthbox® SB-D-QDRAM/10W3v3 (Open Box, Like New)
Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge
$1,249.99
Kleinn RSRAM72 Remote Start for 2018-2024 RAM, Dodge, Jeep, Chrysler
Easy DIY Remote Starter Kit with Key-to-Start and Push-to-Start, Takes less than 1 hour to install (RSRAM72)
$229.99
List price $269.99
Install New Speakers in select 1990-2024 vehicles from Ram, Dodge, Jeep
$9.99
List price $13.99
• 360W Peak
• 180W RMS
• Polypropylene Cone Woofer
• Santoprene Rubber Surround
• Marine Certified
• Triple Vented 4-layer Kapton single 4 Ohm Voice Coil
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(newest, current model)
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(previous model, replaced by Polk Audio DB 842 SVC (DB842SVC))
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(previous model, replaced by Polk Audio db840 (FREE Upgrade to 2017 Model))
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1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2002-2024 vehicles from Ram, Dodge
$849.99
List price $949.99
1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2011-2024 vehicles from Ram
$849.99
List price $949.99
MTX Audio Thunderform DRQC20AC-TN (Charcoal, Amplified)
select 2002-2018 vehicles from Ram, Dodge Amplified 2 10" 4 ohm Vehicle Specific Thunderform Subwoofer Enclosure
$899.95
JL Audio Stealthbox® SB-D-QDRAMD/10TW1
Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge
$1,699.99
MTX Audio Thunderform DRQC20C-TN (Charcoal, Loaded)
Two 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure for select 2002-2018 vehicles from Ram, Dodge
$719.95
JL Audio Stealthbox® SB-D-QDRAM/10W3v3 (Open Box, Like New)
Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge
$1,249.99
1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2002-2024 vehicles from Ram, Dodge
$849.99
List price $949.99
1200W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2011-2018 1500 and 3500 and 2500
$1,199.00
List price $1299.00
Kenwood eXcelon KFC-XP6903C with Installation Accessories
200W RMS 6"x9" 3-way Component Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit
$255.32
List price $412.71
Kicker KRDL7T10 Sub Enclosure + CXA1200.1 Amp + Remote w/ Free Amp Install Kit
1000W RMS Dual 10" Sealed Truck Enclosure, 1200W RMS Class D Monoblock Amp, Wired Bass Remote, 4 Gauge OFC Amp Kit, and 2 Koozies
$1,290.01
List price $1580.93
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• Peak Power: 1300 watts
• RMS Power: 650 watts
• Impedance: Dual 2 ohm
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• Mount depth: 5.31"
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• Sensitivity: 82.4 dB
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• Impedance: Dual 4 ohm
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• Mount depth: 4.56"
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• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Mineral-Filled Polypropylene Cone
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• Mount depth: 4.63"
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• Peak Power: 900 watts
• RMS Power: 450 watts
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• Mount depth: 4-3/4"
• Sensitivity: 82.37 dB
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• RMS Power: 150 watts
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• Mount depth: 3.86"
• Sensitivity: 84.8 dB
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$199.99
List price $199.99
• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 82.1 dB
$239.99
List price $219.99
Manufacturer:
Model Number:
db840
Weight:
8.00lbs
Internal SKU:
db840
Internal Product ID:
12333
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love polk
good subs great value have never heard 4 8s sound like this before
95 found this helpful
Nice little sub
I built a custom box for this sub under the floor in my hatch by the spare tire - pretty much .35 cu ft. I went with this woofer due to my positive experience with polk component speakers and it's super shallow mounting depth. It seemed to lack low lows until broken in but now I just can't say how impressed I am with an 8" woof. I have my amp bridged at 300 watt rms and the woof seems to do fine even though it is rated at 180 watts. For reference, I've got an equalizer built in to my head unit and a 40 Hz bass boost on my amp that might really be helping me dial in the sound. The lows go low enough and the high/mid bass is more pronounced. It is a quality sound not a boomy sound. That said, if you are looking to wake the neighbors from 2 blocks away, get a couple of 10's or 12's.
93 found this helpful
Outstanding performance
Product was far better than the original stock woofer that it replaced, and has been solid as a rock since I installed it. Sounds great!
91 found this helpful
Great 8
This sub is perfect for anyone wantin some added bass, its got a low price point and its reasonably shallow so it wont take up too much room. Polk is a reliable brand in my opinion also.
88 found this helpful
Excellent value, quality and sound
Added the Polk db840 to my golf cart sound system in conjunction with a pair of the Polk db651s. Sound from the db840 is awesome. Nice clean lows.
90 found this helpful
Polk audio
The Polk Audio works great like it a lot. Sounds great in my truck.
89 found this helpful
Awesome Polk Speakers
These are great sounding speakers and they can really handle the power and still sound great. I installed these on my Polaris RZR 4 and I really do like these speakers.
89 found this helpful
Good Buy!
6 months and counting. I love the fact that my db840's are marine certified because I have them in my Goldwing motorcycle and they have performed flawlessly. Can't wait to push these babies with the marine amp that I purchase.d from Sonic. The clear vocals and crisp sounds from these speakers should fair well with the 9 in sub that I also purchased from Sonics.
88 found this helpful
Polk DB 804
I purchased these for some DJ speakers for the mid bass. These sound great and heave very clear sound. I have then wire in series for a 8 ohm load and am pushing 350 watts RMS and these handle it like a champ. The studio amps I am using have a cut off of 100 hz on BI-Amp mode which helps these handle more power than the rating. These are a great deal for the money and do everything I expect of them. I would definitely recommend these If you want quality sound and know what you are doing.
84 found this helpful
NVX 20 ft. of True Spec 8 Gauge Speaker Wire
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NVX SDRLR1 Sound Damping Rubber Roller
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240W Peak (80W RMS) 4x6" GX Series 2 Way Coaxial 2.3-ohm Speakers
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OEM Harness to Connect GROM Aux, iPod or USB Interface to Factory Stereo for select 1998-2011 vehicles from Honda, Acura
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
