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Diamond Audio MS82NEO4

1200W Peak (600W RMS) 8" MS NEO Series 2-Way Pro Coaxial 4-ohm Powersports and Motorcycle Speakers

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1200W Peak (600W RMS) 8" MS NEO Series 2-Way Pro Coaxial 4-ohm Powersports and Motorcycle Speakers

• 600 watts Peak Each, 300 watts RMS Each
• Polyethylene-Naphthalate Horn Tweeters
• Waterproof DUPONT™ Kevlar cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$879.99 /pair

In stock

Only 2 Left!

Diamond Audio MS82NEO2

1200W Peak (600W RMS) 8" MS NEO Series 2-Way Pro Coaxial 2-ohm Powersports and Motorcycle Speakers

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1200W Peak (600W RMS) 8" MS NEO Series 2-Way Pro Coaxial 2-ohm Powersports and Motorcycle Speakers

• 600 watts Peak Each, 300 watts RMS Each
• Polyethylene-Naphthalate Horn Tweeters
• Waterproof DUPONT™ Kevlar cone material
• Impedance: 2 ohm
• Sensitivity: 96 dB

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VIP Product Get $88.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$879.99 /pair

In stock

Only 2 Left!

Hertz SV 200 NEO (SV200 NEO)

1000W Peak (400W RMS) 8" SPL Show Series 4-ohms Midrange Car and Motorcycle Speakers

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1000W Peak (400W RMS) 8" SPL Show Series 4-ohms Midrange Car and Motorcycle Speakers

• 500 watts Peak Each, 200 watts RMS Each
• Terminals and mounting holes compatible for Harley-Davidson motorbikes
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $650.00
-15% $549.99 /pair

In stock

Only 1 Left!

Sundown Audio VEX-12 S8 (Sold Individually)

500W RMS 12" VEX Series Pro-Audio Midrange 8-ohm Speaker (S-VEX128)

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500W RMS 12" VEX Series Pro-Audio Midrange 8-ohm Speaker (S-VEX128)

• 500 watts RMS Each
• Carbon Fiber cone material
• Impedance: 8 ohm

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $443.99
-17% $369.99

In stock

Only 2 Left!

Rockford Fosgate Punch P152 (Open Box, Great)

160W Peak (80W RMS) 5.25" Punch Series 2-way 4-ohm Full Range Car Speakers

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160W Peak (80W RMS) 5.25" Punch Series 2-way 4-ohm Full Range Car Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
27
List price $109.99
-15% $93.49 /pair

In stock

Diamond Audio MSPRO8

500W RMS 8” MSPRO Series 4-ohm Pro Audio High Output Speakers for Harley-Davidson Motorcycles

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500W RMS 8” MSPRO Series 4-ohm Pro Audio High Output Speakers for Harley-Davidson Motorcycles

• Peak Each, 250 watts RMS Each
• Thermal Molded Waterproof Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB
• IP65 marine certified
• Designed for Harley-Davidson motorcycles

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
List price $369.99
$359.99 /pair

In stock

DS18 PRO-CF8.2SLN

400W Peak (200W RMS) 8" PRO Series Midrange 2-ohm Motorcycle and Powersports Shallow Loudspeaker

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400W Peak (200W RMS) 8" PRO Series Midrange 2-ohm Motorcycle and Powersports Shallow Loudspeaker

• 400 watts Peak, 200 watts RMS
• Curvilinear Water Resistant Carbon Fiber cone
• Impedance: 2 ohm
• Sensitivity: 95 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$199.95

In stock

Only 3 Left!

• 400 watts Peak, 200 watts RMS
• Curvilinear Water Resistant Carbon Fiber cone
• Impedance: 2 ohm
• Sensitivity: 95 dB

Limited time!

Infinity Reference 5032cfx (REF-5032CFXAM)

270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

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270W Peak (90W RMS) 5.25" Reference Series 2 Way Coaxial 3-ohm Speakers

• 135 watts Peak Each, 45 watts RMS Each
• Textile Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $130.00
-42% $74.99 /pair

In stock

DS18 PRO-GM8.4PK

1160W Peak (380W RMS) 8” PRO-GM Series Component Midrange 4-ohm Speakers

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1160W Peak (380W RMS) 8” PRO-GM Series Component Midrange 4-ohm Speakers

• 580 watts Peak Each, 190 watts RMS Each
• 1" Aluminum Bullet tweeters
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$117.95 /pair

In stock.

Limited time!

JBL GT7-5C

270W Peak (90W RMS) 5.25" GT7 Series 2 Way Component 4-ohm Speakers

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270W Peak (90W RMS) 5.25" GT7 Series 2 Way Component 4-ohm Speakers

• 135 watts Peak Each, 45 watts RMS Each
• 1-3/16" PEI (Polyetherimide) Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $12.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
3
List price $149.95
-20% $119.95 /set

In stock

Only 1 Left!

JBL GX428 (JBLGX428AM)

210W Peak (70W RMS) 4" GX Series 2 Way Coaxial 2.3-ohm Speakers

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210W Peak (70W RMS) 4" GX Series 2 Way Coaxial 2.3-ohm Speakers

• 105 watts Peak Each, 35 watts RMS Each
• Soft Dome tweeters with deflector
• Polypropylene Plus One woofer cone material
• Impedance: 2.3 ohm
• Sensitivity: 90 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
$64.95 /pair

Available

Ships in 10-14 days

Alpine S2-S80C with Sound Damping

520W Peak (170W RMS) 8" S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

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520W Peak (170W RMS) 8" S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

• 260 watts Peak Each, 85 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 80 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your SC430
46
List price $308.74
-17% $254.94

In stock

• 260 watts Peak Each, 85 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 80 dB

MTX PS8C

600W Peak (300W RMS) 8" Coaxial 4-ohm Powersports Speakers

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600W Peak (300W RMS) 8" Coaxial 4-ohm Powersports Speakers

• 300 watts Peak Each, 150 watts RMS Each
• Teteron Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90.8 dB

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VIP Product Get $38.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Behind Seat
$379.95 /pair

Available

Ships in 10-14 days

• 300 watts Peak Each, 150 watts RMS Each
• Teteron Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90.8 dB

Limited time!

Infinity REF407F (INFSPKRF407FUS)

210W Peak (75W RMS) 4" Reference Series 2-Way Coaxial 3-ohm Speakers

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210W Peak (75W RMS) 4" Reference Series 2-Way Coaxial 3-ohm Speakers

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Edge Driven Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
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VIP Product Get $11.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
List price $139.95
-21% $109.95 /pair

In stock

Limited time!

Pioneer TS-A1081F (Open Box, Great)

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers

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460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers

• 230 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Hard Dome tweeters
• Carbon and Mica Reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
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Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
List price $110.00
-27% $80.00 /pair
$72.00 with coupon | Price details

In stock

Only 1 Left!

AudioControl PNW-525 with Sound Damping

150W Peak (100W RMS) 5.25″ PNW Series 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

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150W Peak (100W RMS) 5.25″ PNW Series 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 75 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 84 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your SC430
47
List price $277.74
-9% $253.99

Available

Ships in 10-14 days

• 75 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 84 dB

Limited time!

Diamond Audio DMD42

120W Peak (60W RMS) 4" DMD Series 2 Way Coaxial 4-ohm Speakers

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120W Peak (60W RMS) 4" DMD Series 2 Way Coaxial 4-ohm Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" Silk Dome Tweeters
• Reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 84 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $11.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
List price $119.99
-8% $109.99 /pair

In stock.

Limited time!

Alpine S2-S40C

280W Peak (90W RMS) 4" S-Series Hi-Res 2-Way Component Car Speakers

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280W Peak (90W RMS) 4" S-Series Hi-Res 2-Way Component Car Speakers

• 140 watts Peak Each, 45 watts RMS Each
• Hi-Res Audio Certified
• 1" Cloth Dome Tweeters
• Adjustable tweeters with threaded removable housing
• Polypropylene, Glass Fiber and Mica cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $15.00 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
1
List price $180.00
-17% $149.95 /set

In stock

Limited time!

Earthquake Sound F5.25

600W Peak 5.25" Focus Series 2-Way Coaxial 4-ohm Car Speakers

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600W Peak 5.25" Focus Series 2-Way Coaxial 4-ohm Car Speakers

• 300 watts Peak Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $10.80 in rewards to spend later

install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Lower Front Door
List price $120.00
-10% $107.99 /pair

In stock.

Diamond Audio DMDX4

180W Peak (60W RMS) 4" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

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180W Peak (60W RMS) 4" DMD Series 2-Way Cocentric Coaxial 4-ohm Speakers

• 90 watts Peak Each, 30 watts RMS Each
• Dome Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 82 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your SC430
  • Rear Seat Side Panel
$109.99 /pair

In stock.

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    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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    FAQ for Speakers in 2003 SC430

    Q: Can I upgrade or change the Speakers in 2003 Lexus SC430?

    A: Yes this page includes all the best Speakers that work in your SC430.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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