Unleash the thrilling power of the railroad with the compact design of the Conductor's Special 127H train horn kit. Tailored for those with limited space but refuse to compromise on performance, this kit is an acoustic marvel. The included Shocker XL train horn replicates the resonance of authentic locomotive horns, all while ensuring installation remains a breeze even in smaller spaces.
**Detaching the compressor from the tank will void your warranty on this kit. If you need a solution where the compressor is detached, please look at our 232 and higher models. **
Please note: The 6 horn upgrade kit does NOT include the extension brackets to connect to our Shocker XL horn mount.
| Part Number | HK-S4-127H |
| Operating Pressure | 120 PSI |
| Restart Pressure | 90 PSI |
| Voltage | 12-Volt DC |
| Horn | Shocker XL train horn |
| Horn Material | High-impact fiberglass reinforced ABS |
| Horn Measurements | № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm) № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm) |
| Horn Flare | 5″ (127 mm) |
| Air Source Unit | HornBlasters 127H air source unit |
| Air Source Length | 15.2″ (386.08 mm) |
| Air Source Width | 5.9″ (149.86 mm) |
| Air Source Height | 12.8″ (325.12 mm) |
| Air Source Weight | 13.75 lb (6.24 Kg) |
| Air Tank | 1.5 Gallon 4 Port Tank |
| Volume | 1.5 gal (6.6 L) |
| Air Compressor | 2L air compressor |
| Max Amperage | 18 amps |
| Maximum Duty Cycle | 25% @ 100 PSI |
| 1.5 GALLON TANK | FILL RATE |
|---|---|
| 0 to 120 PSI | 2 min. 10 sec. (±10 Sec.) |
| 90 to 120 PSI | 35 sec. (± 5 Sec.) |
Enhance your vehicle's presence on the road with the HornBlasters Conductor's Special 228H train horn kit. Armed with the Shocker XL train horns, this compact kit is for those who don't want to compromise on loudness when space and budget are at a premium. With everything included from start to finish and the pre-assembled and pre-wired air source unit, this kit will ensure you're up and honking in no time!
Please note: The 6 horn upgrade kit does NOT include the extension brackets to connect to our Shocker XL horn mount.
| Part Number | HK-S4-228H |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Horn | Shocker XL train horn |
| Horn Material | High-impact fiberglass reinforced ABS |
| Horn Measurements | № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm) № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm) |
| Horn Flare | 5″ (127 mm) |
| Air Source Unit | HornBlasters 228H air source unit |
| Air Source Length | 19″ (482.6 mm) |
| Air Source Width | 6.25″ (158.75 mm) |
| Air Source Height | 14.5″ (368.3 mm) |
| Air Source Weight | 17.15 lb (7.78 Kg) |
| Air Tank | 2.0 gallon |
| Volume | 2 gal (8.8 L) |
| Max Amperage | 25 amps |
| Maximum Duty Cycle | 30% @ 100 PSI |
| 2.0 GALLON TANK | FILL RATE |
|---|---|
| 0 to 145 PSI | 3 min. 5 sec.(± 10 sec.) |
| 110 to 145 PSI | 55 sec. (± 05 sec.) |
Dive into an authentic locomotive experience with our Conductor’s Special 232 train horn kit. Tailored for those with space constraints but unwilling to compromise on power, this versatile kit has found its home in everything from nimble UTVs to commanding big rigs. Harness the roar of our signature Shocker XL train horns and benefit from a comprehensive kit that's designed for hassle-free installation.
Please note: The 6 horn upgrade kit does NOT include the extension brackets to connect to our STDK bracket or Shocker XL horn mount.
| Part Number | HK-S4-232 |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Horn | Shocker XL train horn |
| Horn Material | High-impact fiberglass reinforced ABS |
| Horn Measurements | № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm) № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm) |
| Horn Flare | 5″ (127 mm) |
| Air Tank | HornAir 2-gallon 6 port air tank |
| Tank Length | 17" (431.8 mm) |
| Tank Diameter | 6" (152.4 mm) |
| Tank Height | 8″ (203.2 mm)(With Legs) |
| Tank Weight | 10 lb (4.54 Kg) |
| Air Compressor | HornBlasters 3Q air compressor |
| Max Tank Size | 5-Gallons (18.93 Liters) |
| Max amperage | 20 Amps |
| Maximum duty cycle | 100% @ 100 PSI |
| Flow Rate @ 0 PSI | 1.41 CFM |
| Compressor length | 10.1″ (256.54 mm) |
| Compressor width | 4.5″ (114.3 mm) |
| Compressor height | 7″ (177.8 mm) |
| Weight | 12.1 lb (5.48 Kg) |
| 2.0 GALLON TANK | FILL RATE |
|---|---|
| 0 to 150 PSI | 3 min. 59 sec. (± 10 sec.) |
| 110 to 150 PSI | 1min. 33 sec. (± 05 sec.) |

For the audacious road enthusiast, the Conductor's Special 244 Nightmare Edition Train Horn Kit is more than a mere accessory; it's a symphony of engineering brilliance. Marrying the relentless performance of our constant-duty 1NM air compressor with the thunderous cadence of our Shocker XL train horns, this kit stands as a beacon of unparalleled power. Equipped with a 2-gallon air tank, this kit ensures each honk is felt, providing 3-5 seconds of honk time that underscores your presence on the open road.
**Please note: The 6 horn upgrade kit does NOT include the extension brackets to connect to our STDK bracket or Shocker XL horn mount.**
| Part Number | HK-S4-244K |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Horn | Shocker XL train horn |
| Horn Material | High-impact fiberglass reinforced ABS |
| Horn Measurements | № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm) № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm) |
| Horn Flare | 5″ (127 mm) |
| Air Tank | HornAir 2-gallon 6 port air tank |
| Tank Length | 17″ (431.8 mm) |
| Tank Diameter | 6″ (152.4 mm) |
| Tank Height | 8″ (203.2 mm) |
| Tank Weight | 10 lb (4.54 Kg) |
| Max amperage | 25 Amps |
| Maximum duty cycle | 100% @ 100 PSI / 50% @ 200 PSI |
| Flow Rate @ 0 PSI | 1.75 CFM |
| Maximum working pressure | 200 PSI |
| Compressor length | 10.75″ (273.05 mm) |
| Compressor width | 4″ (101.6 mm) |
| Compressor height | 6.75″ (171.45 mm) |
| 2.0 GALLON TANK | FILL RATE |
|---|---|
| 0 to 150 PSI | 2 min. (± 10 sec.) |
| 110 to 150 PSI | 35 sec. (± 05 sec.) |

Embrace unparalleled dominance on the road with the HornBlasters Conductor’s Special 544 Nightmare Edition train horn kit. At its core, the legendary Shocker XL train horns resonate with unmatched power, accompanied by the impressive capacity of the 5-gallon air tank. Driven by the relentless HornBlasters HB-1NM compressor, this kit is more than a statement; it's a testament to outstanding craftsmanship and performance.
Please note: The 6 horn upgrade kit does NOT include the extension brackets to connect to our STDK bracket or Shocker XL horn mount.
| Horn | Shocker XL train horn |
| Horn Kit Part Number | HK-S4-544K |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Horn Material | High-impact fiberglass reinforced ABS |
| Horn Measurements | № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm) № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm) |
| Horn Flare | 5″ (127 mm) |
| Air Tank | HornAir 5-gallon 8 port air tank |
| Tank Length | 20.5″ (520.7 mm) |
| Tank Diameter | 9.5″ (241.3 mm) |
| Tank Height | 11.5″ (292.1 mm) (With Legs) |
| Tank Weight | 20 lb (9.07 Kg) |
| Tank Ports | x7 1/2" NPT, x1 3/4" NPT |
| Air Flow | 1.75 CFM |
| Max Amperage | 25 amps |
| Maximum Duty Cycle | 100% @ 100 PSI |
| Compressor length | 10.75″ (273.05 mm) |
| Compressor width | 4″ (101.6 mm) |
| Compressor height | 6.75″ (171.45 mm) |
| Compressor Weight | 11 lb (4.99 Kg) |
| 5.0 GALLON TANK | FILL RATE |
|---|---|
| 0 to 150 PSI | 6 min. 45 sec. (± 10 sec.) |
| 110 to 150 PSI | 2 min. (± 05 sec.) |

Elevate your presence on the road with the Conductor's Special 844 Nightmare Edition Train Horn Kit, a masterclass in design and functionality. Meticulously crafted to deliver power and performance beyond imagination, this kit stands as a testament to what can be achieved.
The roaring notes of the Shocker XL Train Horns resonate with the authentic sound of locomotives, while the massive 8-gallon air tank ensures uninterrupted operation. Whether it's the deep, harmonious chords of the horns or the reliable support for your air tools, the 844K Onboard Air System offers it all with uncompromised quality.
| Part Number | HK-S4-844K |
| Operating Pressure | 150 PSI |
| Restart Pressure | 110 PSI |
| Voltage | 12-Volt DC |
| Horn | Shocker XL train horn |
| Horn Material | High-impact fiberglass reinforced ABS |
| Horn Measurements | № 1 19.50″ (495.30 mm) № 2 16.25″ (412.75 mm) № 3 14.75″ (374.65 mm) № 4 12.75″ (323.85 mm) |
| Horn Flare | 6.5″ (165.1 mm) |
| Air Tank | HornAir 8-gallon 8 port air tank |
| Tank Length | 32.5″ (825.5 mm) |
| Tank Diameter | 10.5″ (266.7 mm) |
| Tank Height | 12.5″ (317.5 mm) (With Legs) |
| Tank Weight | 32 lb (14.51 Kg) |
| Max amperage | 25 Amps |
| Maximum duty cycle | 100% @ 100 PSI |
| Compressor length | 10.75″ (273.05 mm) |
| Compressor width | 4″ (101.6 mm) |
| Compressor height | 6.75″ (171.45 mm) |
Warnings & Notices
Hearing Protection Required
This product produces extreme loudness. Proper hearing protection must be worn at all times during its operation. Hearing loss or permanent damage may result from unsafe use. Use this product in a safe and responsible manner and at a distance of at least 100 meters from others. Never operate this product in a closed environment, in close proximity to living beings, or where prohibited by law.
Warning
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
First Time Buyer's
If you’re new to horns or horn kits, our First-Time Buyer’s Guide is a great place to learn what to expect, how to install your kit, and how to choose the right setup. Our Install Gallery is also a great resource for getting inspiration for your application.
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