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5 Product Groups
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Kleinn Onboard Air Systems
Kleinn Train Horns Onboard Air SystemFrom $199.95
- 3.0 gallon air tank
- 110/145 PSI pressure switch
- Remote mount intake filter
- Includes mounting brackets and hardware
- California Residents: WARNING
From $199.95
3.9
3.9
(20)
From $104.95
3.6
3.6
(5)
HornBlasters Conductor's Special Horn Kit
HornBlasters Conductor's Special Horn KitFrom $1,199.99
- Chrome or black Conductor's Horn
- Air Tank
- Compressor
- PSI Pressure Switch
- Air Filters
- D.O.T Approved Airlines
- Detailed Instructions
- All mounting hardware
- Earplugs
From $1,199.99
5.0
5.0
(2)
HornBlasters Shocker Train Horn Kits
HornBlasters Shocker Train Horn KitsFrom $1,259.99
- All inclusive train horn solution
- Shocker XL Train Horn
- Lightweight and extremely loud
- Durable fiberglass reinforced ABS plastic body
- Stainless steel diaphragm
- All-inclusive brass fitting kit
- Can be heard from 2 miles away
- Made in the USA
- Top-end compressor perfect for train horns
- Complete fitting kit with safety valve & drain cock
From $1,259.99
5.0
5.0
(1)
6 Products
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4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
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Hella 400 Hz high-Tone Horn - 007424001
How to Get it
Free! Curbside & In-Store Pickup: Select A Store Near You
Ship to Home:
Only 2 left in Stock ?- Fitment: Universal Fit
- 400 Hz High-Tone Trumpet
- With Bracket
- 12 V
- Red
- Sold Each
- California Residents: WARNING + View More Specs - View Less Specs
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We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
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Qualifies for Free Shipping on Orders Over $99
$11.44
$14.34
Only 2 left in Stock ?
$11.44
$14.34
Only 2 left in Stock
?
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EASY RETURNS
How to Get it
Free! Curbside & In-Store Pickup: Select A Store Near You
Ship to Home:
Only 2 left in Stock ?- Fitment: Universal Fit
- 400 Hz High-Tone Trumpet
- With Bracket
- 12 V
- Red
- Sold Each
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
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Kleinn Onboard Air System - 7270
- Fitment: Universal Fit
- Onboard Air System
- 130
- 130 PSI
- 15 Percent Duty Cycle
- Prewired And Plumbed Air Compressor And Tank Combo System
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping
$199.95
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
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$199.95
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- Fitment: Universal Fit
- Onboard Air System
- 130
- 130 PSI
- 15 Percent Duty Cycle
- Prewired And Plumbed Air Compressor And Tank Combo System
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
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Kleinn Dual Horn (Black) - 225
- Fitment: Universal Fit
- Dual Horn
- Black ABS Trumpets
- Two trumpets, 15″ and 9 3/4″
- Oscillating tone
- 2x Vortex 4 12v electronic air horn solenoids included
- 152.8Â db output
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping
$104.95
On Backorder
Contact Us for Availability or Alternatives
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Email me when this product comes in stock
LOW PRICE GUARANTEE
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$104.95
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- Fitment: Universal Fit
- Dual Horn
- Black ABS Trumpets
- Two trumpets, 15″ and 9 3/4″
- Oscillating tone
- 2x Vortex 4 12v electronic air horn solenoids included
- 152.8Â db output
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
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Enter email address to change your password
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Hella Triple-Tone Melodic Sound Air Horn Kit with Air Compressor - 003001681
- Fitment: Universal Fit
- 118 Decibles
- Includes Three Horns
- 12 volts
- Includes Wiring Harness and Bracket
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping on Orders Over $99
$69.99
On Backorder
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Email me when this product comes in stock
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$69.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- Fitment: Universal Fit
- 118 Decibles
- Includes Three Horns
- 12 volts
- Includes Wiring Harness and Bracket
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
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HornBlasters Conductors Special 5485 Nightmare Edition Train Horn Kit - HK-S4-5485K
- Fitment: Universal Fit
- All-inclusive Train Air Horn solution!
- Extremely durable & loud!
- The horns are constructed fromfiberglass-reinforced ABSfor extreme durability through all harsh conditions
- Stainless steel diaphragms won't rust
- Extra large 5 gallon air tank
- Heavy duty Viair 485C stealth black air compressor
- Max honk time: 10 to 12 seconds
- Voltage:12 volts DC
- Max amperage:23amps
- Maximum duty cycle:100% @ 200 PSI
- Includes: Shocker S4 Train Horns
- 5 Gallon Air Tank
- Viair 485C stealth black compressor
- 110/150 PSI pressure switch with 40 amp relay
- Remote mountable intake filter assembly
- Air filter cartridges
- 10 ft of 5/16 in D.O.T. approved air line
- 17 ft of 1/2 in D.O.T. approved air line
- 6 ft of 3/8 in Air line (for intake)
- HornBlasters 200 PSI air gauge
- 18 ft of 10 Gauge power wire
- 18 ft of 18 Gauge power wire
- Wiring kit with fuse holder
- Brass NPT fittings kit including safety valve and blow-off
- All standard mounting hardware & detailed instructions
- It can be heard from almost miles away!
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping
$1,199.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
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HornBlasters Conductors Special 5485 Nightmare Edition Train Horn Kit - HK-S4-5485K
Part #: H/BHK-S4-5485K$1,199.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- Fitment: Universal Fit
- All-inclusive Train Air Horn solution!
- Extremely durable & loud!
- The horns are constructed fromfiberglass-reinforced ABSfor extreme durability through all harsh conditions
- Stainless steel diaphragms won't rust
- Extra large 5 gallon air tank
- Heavy duty Viair 485C stealth black air compressor
- Max honk time: 10 to 12 seconds
- Voltage:12 volts DC
- Max amperage:23amps
- Maximum duty cycle:100% @ 200 PSI
- Includes: Shocker S4 Train Horns
- 5 Gallon Air Tank
- Viair 485C stealth black compressor
- 110/150 PSI pressure switch with 40 amp relay
- Remote mountable intake filter assembly
- Air filter cartridges
- 10 ft of 5/16 in D.O.T. approved air line
- 17 ft of 1/2 in D.O.T. approved air line
- 6 ft of 3/8 in Air line (for intake)
- HornBlasters 200 PSI air gauge
- 18 ft of 10 Gauge power wire
- 18 ft of 18 Gauge power wire
- Wiring kit with fuse holder
- Brass NPT fittings kit including safety valve and blow-off
- All standard mounting hardware & detailed instructions
- It can be heard from almost miles away!
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
4WP PROTECTION PLAN
Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!
Sign In Or Create an Account
Reset Password
An email is sent to .
Enter email address to change your password
After you submit your email address, you'll receive an email a link that will let you change your password.
Choose Your Secure Checkout Method
Create An Account
Add to Wishlist
HornBlasters Shocker S6 544 Nightmare Edition Train Horn Kit - HK-S6-544K
- Fitment: Universal Fit
- All-inclusive Train Air Horn solution!
- Extremely durable & loud!
- Stainless steel diaphragms won't rust
- Extra large 5 gallon air tank
- Heavy duty 444C air compressor
- Max honk time: 8-10 seconds
- Voltage:12 volts DC
- Max amperage:19amps
- Maximum duty cycle:100% @ 100 PSI ,50% @ 200 PSI
- Includes: Shocker S6 Train Horns
- 1/2 in NPT Electric solenoid valve
- 5 Gallon Air Tank
- Viair 444C compressor
- 110/150 PSI pressure switch with 40 amp relay
- Remote mountable intake filter assembly
- Air filter cartridges
- 10 ft of 5/16 in D.O.T. approved air line
- 17 ft of 1/2 in D.O.T. approved air line
- 6 ft of 3/8 in Air line (for intake)
- 17 ft of 10 Gauge power wire
- 17 ft of 18 Gauge power wire and horn wire
- Wiring kit with fuse holder
- Brass NPT fittings kit including safety valve and blow-off
- All standard mounting hardware & detailed instructions
- It can be heard from almost miles away!
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
Qualifies for Free Shipping
$1,259.99
On Backorder
Contact Us for Availability or Alternatives
LOW PRICE GUARANTEE
EASY RETURNS
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
$1,259.99
On Backorder
Contact Us for Availability or Alternatives
Email me when this product comes in stock
LOW PRICE GUARANTEE
EASY RETURNS
- Fitment: Universal Fit
- All-inclusive Train Air Horn solution!
- Extremely durable & loud!
- Stainless steel diaphragms won't rust
- Extra large 5 gallon air tank
- Heavy duty 444C air compressor
- Max honk time: 8-10 seconds
- Voltage:12 volts DC
- Max amperage:19amps
- Maximum duty cycle:100% @ 100 PSI ,50% @ 200 PSI
- Includes: Shocker S6 Train Horns
- 1/2 in NPT Electric solenoid valve
- 5 Gallon Air Tank
- Viair 444C compressor
- 110/150 PSI pressure switch with 40 amp relay
- Remote mountable intake filter assembly
- Air filter cartridges
- 10 ft of 5/16 in D.O.T. approved air line
- 17 ft of 1/2 in D.O.T. approved air line
- 6 ft of 3/8 in Air line (for intake)
- 17 ft of 10 Gauge power wire
- 17 ft of 18 Gauge power wire and horn wire
- Wiring kit with fuse holder
- Brass NPT fittings kit including safety valve and blow-off
- All standard mounting hardware & detailed instructions
- It can be heard from almost miles away!
- California Residents: WARNING + View More Specs - View Less Specs
PROMOTIONS AUTOMATICALLY APPLIED
We Pay the Sales Tax - 4th Of July Sale Weekend At 4WP!
SHOP 4WP's HUGE SELECTION
