HornBlasters HornAir 2-Gallon 150 PSI Sealed Air Source Unit

HornBlasters HornAir 844 Nightmare Edition Onboard Air System

¥161,800

Free worldwide shipping

In stock, ready to ship
Inventory on the way

Apply for financing HERE!

Addons	Add Wireless Activation Remote Activate your horn wirelessly from up to 100 yards away with our compact RF transmitter. This unit is not weather-resistant and must be installed in a dry, enclosed location.	+¥5,900
Addons	Add S6 Horn Upgrade with Spare Tire Delete Brackets Upgrade your Conductor's Special to a 6 horn set up. With the 2 extra bells, new 6 way manifold and STDK extensions, you can now get a little bit more out of the Conductor's Special Spare Tire Delete Kit!	+¥44,200
Addons	Add Tire Inflation Kit Our Tire Inflation Kit includes a 30' Coil Hose, Tire Inflation Gun, Air Relocation Kit, Blow Gun, & a complete Air Accessory Fitting Kit!	+¥11,800
Addons	Add Electric Drain Valve Kit This kit has everything you need to drain your tank from the push of a button from inside the cab!	+¥8,900
Addons	Add Digital Air Pressure Gauge Using a tank mounted sensor wired directly to your gauge, our 220-PSI rated Digital Air Pressure Gauge delivers unparalleled accuracy with microprocessor stabilized readings.	+¥13,300
Addons	Add Platinum Extended Warranty 2 year add-on to existing warranty. DOES cover accidental damage and advance replacement. Click here for more information!	+¥29,124

[{"id":55160350048625,"title":"Light-Duty (Light Pneumatic Use) \/ Black","option1":"Light-Duty (Light Pneumatic Use)","option2":"Black","option3":null,"sku":"HK-S4-2HB-STDK","requires_shipping":true,"taxable":true,"featured_image":{"id":31776771014746,"product_id":14990284325233,"position":5,"created_at":"2023-04-13T14:53:51-04:00","updated_at":"2025-04-15T09:19:13-04:00","alt":"HornBlasters Conductor's Special 2HB Spare Tire Delete® Kit","width":1400,"height":760,"src":"\/\/hornblasters.com\/cdn\/shop\/products\/NEW-HK-S4-2HB-STDK-2.jpg?v=1744723153","variant_ids":[55160350048625]},"available":true,"name":"Spare Tire Delete® Kit - Light-Duty (Light Pneumatic Use) \/ Black","public_title":"Light-Duty (Light Pneumatic Use) \/ Black","options":["Light-Duty (Light Pneumatic Use)","Black"],"price":16180000,"weight":0,"compare_at_price":null,"inventory_quantity":-12,"inventory_management":null,"inventory_policy":"deny","barcode":"817562029390","featured_media":{"alt":"HornBlasters Conductor's Special 2HB Spare Tire Delete® Kit","id":24052004192346,"position":5,"preview_image":{"aspect_ratio":1.842,"height":760,"width":1400,"src":"\/\/hornblasters.com\/cdn\/shop\/products\/NEW-HK-S4-2HB-STDK-2.jpg?v=1744723153"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":55160356831601,"title":"Light-Duty (Light Pneumatic Use) \/ White","option1":"Light-Duty (Light Pneumatic Use)","option2":"White","option3":null,"sku":"HK-S4W-2HB-STDK","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Spare Tire Delete® Kit - Light-Duty (Light Pneumatic Use) \/ White","public_title":"Light-Duty (Light Pneumatic Use) \/ White","options":["Light-Duty (Light Pneumatic Use)","White"],"price":16330000,"weight":0,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":55160350081393,"title":"Medium-Duty (Quiet \u0026 Light Pneumatic Use) \/ Black","option1":"Medium-Duty (Quiet \u0026 Light Pneumatic Use)","option2":"Black","option3":null,"sku":"HK-S4-232-STDK","requires_shipping":true,"taxable":true,"featured_image":{"id":32882447974490,"product_id":14990284325233,"position":3,"created_at":"2024-07-18T09:56:43-04:00","updated_at":"2025-04-15T09:19:13-04:00","alt":"HornBlasters Conductor's Special 232 Spare Tire Delete® Kit","width":1400,"height":760,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/NEW-HK-S4-232-STDK_c7eb9c3f-7cfa-4b27-a364-5668f6d8dba6.jpg?v=1744723153","variant_ids":[55160350081393]},"available":true,"name":"Spare Tire Delete® Kit - Medium-Duty (Quiet \u0026 Light Pneumatic Use) \/ Black","public_title":"Medium-Duty (Quiet \u0026 Light Pneumatic Use) \/ Black","options":["Medium-Duty (Quiet \u0026 Light Pneumatic Use)","Black"],"price":17650000,"weight":0,"compare_at_price":null,"inventory_quantity":-1,"inventory_management":null,"inventory_policy":"deny","barcode":"817562028836","featured_media":{"alt":"HornBlasters Conductor's Special 232 Spare Tire Delete® Kit","id":25192475230298,"position":3,"preview_image":{"aspect_ratio":1.842,"height":760,"width":1400,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/NEW-HK-S4-232-STDK_c7eb9c3f-7cfa-4b27-a364-5668f6d8dba6.jpg?v=1744723153"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":55160356864369,"title":"Medium-Duty (Quiet \u0026 Light Pneumatic Use) \/ White","option1":"Medium-Duty (Quiet \u0026 Light Pneumatic Use)","option2":"White","option3":null,"sku":"HK-S4W-232-STDK","requires_shipping":true,"taxable":true,"featured_image":{"id":73887160893809,"product_id":14990284325233,"position":2,"created_at":"2025-04-10T15:16:35-04:00","updated_at":"2025-04-15T09:19:13-04:00","alt":null,"width":1400,"height":760,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/HK-S4W-232-STDK_7b944fab-5c40-4f08-babc-90f3b8719303.jpg?v=1744723153","variant_ids":[55160356864369]},"available":true,"name":"Spare Tire Delete® Kit - Medium-Duty (Quiet \u0026 Light Pneumatic Use) \/ White","public_title":"Medium-Duty (Quiet \u0026 Light Pneumatic Use) \/ White","options":["Medium-Duty (Quiet \u0026 Light Pneumatic Use)","White"],"price":17800000,"weight":0,"compare_at_price":null,"inventory_quantity":-2,"inventory_management":null,"inventory_policy":"deny","barcode":"","featured_media":{"alt":null,"id":64670794744177,"position":2,"preview_image":{"aspect_ratio":1.842,"height":760,"width":1400,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/HK-S4W-232-STDK_7b944fab-5c40-4f08-babc-90f3b8719303.jpg?v=1744723153"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":55160350114161,"title":"Heavy-Duty (Quick \u0026 Moderate Pneumatic Use) \/ Black","option1":"Heavy-Duty (Quick \u0026 Moderate Pneumatic Use)","option2":"Black","option3":null,"sku":"HK-S4-244K-STDK","requires_shipping":true,"taxable":true,"featured_image":{"id":32880151330906,"product_id":14990284325233,"position":1,"created_at":"2024-07-17T17:31:35-04:00","updated_at":"2024-07-17T17:31:36-04:00","alt":"HornBlasters Conductor's Special 244K Spare Tire Delete® Kit","width":1400,"height":760,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/GEN3-HK-S4-244K-STDK_f0dac9c3-62ad-4472-8ae9-19010fe31f6a.jpg?v=1721251896","variant_ids":[55160350114161]},"available":true,"name":"Spare Tire Delete® Kit - Heavy-Duty (Quick \u0026 Moderate Pneumatic Use) \/ Black","public_title":"Heavy-Duty (Quick \u0026 Moderate Pneumatic Use) \/ Black","options":["Heavy-Duty (Quick \u0026 Moderate Pneumatic Use)","Black"],"price":19130000,"weight":0,"compare_at_price":null,"inventory_quantity":-13,"inventory_management":null,"inventory_policy":"deny","barcode":"817562028768","featured_media":{"alt":"HornBlasters Conductor's Special 244K Spare Tire Delete® Kit","id":25190348324954,"position":1,"preview_image":{"aspect_ratio":1.842,"height":760,"width":1400,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/GEN3-HK-S4-244K-STDK_f0dac9c3-62ad-4472-8ae9-19010fe31f6a.jpg?v=1721251896"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":55160356897137,"title":"Heavy-Duty (Quick \u0026 Moderate Pneumatic Use) \/ White","option1":"Heavy-Duty (Quick \u0026 Moderate Pneumatic Use)","option2":"White","option3":null,"sku":"HK-S4W-244K-STDK","requires_shipping":true,"taxable":true,"featured_image":{"id":59632699375985,"product_id":14990284325233,"position":4,"created_at":"2025-02-05T14:40:07-05:00","updated_at":"2025-04-15T09:19:13-04:00","alt":null,"width":1400,"height":760,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/HK-S4W-244K-STDK.jpg?v=1744723153","variant_ids":[55160356897137]},"available":true,"name":"Spare Tire Delete® Kit - Heavy-Duty (Quick \u0026 Moderate Pneumatic Use) \/ White","public_title":"Heavy-Duty (Quick \u0026 Moderate Pneumatic Use) \/ White","options":["Heavy-Duty (Quick \u0026 Moderate Pneumatic Use)","White"],"price":19270000,"weight":0,"compare_at_price":null,"inventory_quantity":-1,"inventory_management":null,"inventory_policy":"deny","barcode":"","featured_media":{"alt":null,"id":51538978603377,"position":4,"preview_image":{"aspect_ratio":1.842,"height":760,"width":1400,"src":"\/\/hornblasters.com\/cdn\/shop\/files\/HK-S4W-244K-STDK.jpg?v=1744723153"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":55160350048625,"title":"Light-Duty (Light Pneumatic Use) \/ Black","option1":"Light-Duty (Light Pneumatic Use)","option2":"Black","option3":null,"sku":"HK-S4-2HB-STDK","requires_shipping":true,"taxable":true,"featured_image":{"id":31776771014746,"product_id":14990284325233,"position":5,"created_at":"2023-04-13T14:53:51-04:00","updated_at":"2025-04-15T09:19:13-04:00","alt":"HornBlasters Conductor's Special 2HB Spare Tire Delete® Kit","width":1400,"height":760,"src":"\/\/hornblasters.com\/cdn\/shop\/products\/NEW-HK-S4-2HB-STDK-2.jpg?v=1744723153","variant_ids":[55160350048625]},"available":true,"name":"Spare Tire Delete® Kit - Light-Duty (Light Pneumatic Use) \/ Black","public_title":"Light-Duty (Light Pneumatic Use) \/ Black","options":["Light-Duty (Light Pneumatic Use)","Black"],"price":16180000,"weight":0,"compare_at_price":null,"inventory_quantity":-12,"inventory_management":null,"inventory_policy":"deny","barcode":"817562029390","featured_media":{"alt":"HornBlasters Conductor's Special 2HB Spare Tire Delete® Kit","id":24052004192346,"position":5,"preview_image":{"aspect_ratio":1.842,"height":760,"width":1400,"src":"\/\/hornblasters.com\/cdn\/shop\/products\/NEW-HK-S4-2HB-STDK-2.jpg?v=1744723153"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

BALLING ON A BUDGET? WE GOT YOU.

Behold the Conductor's Special 2HB Spare Tire Delete Kit - your wallet's new best friend in the world of affordable STD kits. This all-in-one set combines our notoriously loud Shocker XL horns, the STD bracket, and our HornAir 2HB onboard air system, delivering a sound that's larger than life, without shrinking your bank account.

The loudest horns we manufacture, be heard for miles!

Super easy install with the Spare Tire Delete bracket

Includes all necessary hardware & wiring

3-5 second honk time, 65-second recovery

Important Notes:

VEHICLE FITMENT NOTICE: This bracket is not 100% plug-and-play with all vehicles. 2020-2021 Chevy & GMC 1500 and 3500 series trucks will require some modification to the mounting point for installation. If you are unsure, please contact us for assistance.

Fits most full-size pickups.

The spare tire delete kit is shown assembled above for illustration purposes only. The kit will arrive as individual components and assembly will be required. Please check the install instructions in the section below.

Adding the S6 extensions to your STDK will increase the width from 20" to 29". Please make sure you have the clearance before purchasing.

2.0 GALLON TANK

FILL RATE

0 to 150 PSI

2 min. 50 sec. (± 10 sec.)

110 to 150 PSI

50 sec. (± 05 sec.)

Customer Reviews

5.0 Based on 171 Reviews

5 ★

98%

167

4 ★

3 ★

2 ★

1 ★

Customer Photos

Write a Review Ask a Question

Reviews
Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Craig S.

United States

03/05/2025

Spare tire delete kit

Extremely loud & well worth the money. I was impressed & jumped a little first hearing it. Super clean design & easy to install by far the best route to go. DIY friendly & cost effective at the same time

Craig S.

United States

03/02/2025

Spare tire delete kit

By far the loudest horns out there. Easy to install & super easy to put together. Hassle free spare tire delete kit is the way to go

James T.

United States

02/21/2025

Soo good

I just had to leave a review, because the horn sounds amazing and is very high quality.

Ken W.

United States

01/09/2025

Road rage diverted!

I have the Conductors special 244k with all the extras except the two extra horns. I absolutely love it! The convenience of airing up my tires or someone else's tires is great! Knucklehead in a medical delivery truck was all over the road because he had his lunch plate in his hand driving on the freeway. He ended up wearing his lunch in his lap after I hit the horns. 😂 Just drive or get off the road.

Terry A.

United States

10/29/2024

Spare tire Delete kit is perfect for my F150!

I’m super glad I picked up the spare tire delete kit from HornBlasters! The kit arrived quickly and was packed well! The workmanship of the kit was top notch and it came with everything needed! The sound and volume was exactly what I was looking for… perfect!

HornBlasters Spare Tire Delete® Kit Review

Traycen 11/25/2023

Will this fit on a 2002 Chevy duramax with a flatbed

Answers (1)

HornBlasters 11/27/2023

Hello, As long as your vehicle has the traditional spare tire hook this will work great! Even if it does not have the hook we have seen these directly mounted to a vehicle. You can also buy this same kit without the bracket.

Rick F. 11/16/2023

What's the loudest train horns yiu have for your spare tire delete kit?

Answers (1)

HornBlasters 11/16/2023

Currently the Conductor's special is the loudest kit we offer on the spare tire delete kit. These horns are the 2nd loudest we offer, the only thing louder is genuine Locomotive horns called the Nathan K5.

mike p. 11/08/2023

can you connect to the horn on steering wheel

Answers (1)

HornBlasters 11/08/2023

Hello, Yes, you can and we do include detailed instructions with your kit to help you install it using the horn.

Mike 11/07/2023

I have a 1998 dodge ram 2500 do I need anything special. For the spare tire delete conductor special 232

Answers (1)

Anonymous 11/07/2023

Take a look and make sure you have the spare tire hoist on your truck. Provided that you do, you won't need anything else for this to work properly.

Jason S. 09/12/2023

What’s the labor hours on the install of the 244 spare tire delete with tire fill kit?

Answers (1)

HornBlasters 09/12/2023

Hello, You can expect install to take 5-6 hours with a additional 30 minutes for the tire inflation kit.

1 2 3 8 >

Part Number	HK-S4-2HB-STDK
Operating Pressure	150 PSI
Restart Pressure	110 PSI
Voltage	12-Volt DC
Horn	Shocker 4 train horn kit
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)
Air Tank	HornAir 2-gallon 6 port air tank
Tank Length	17″ (431.8 mm)
Tank Diameter	6″ (152.4 mm)
Tank Height	7″ (177.8 mm)
Tank Weight	10 lb (4.54 Kg)
Average Fill Time	1 minute 10 seconds
Air Flow	1.56 CFM
Compressor Length	8.75" (222.25 mm)
Compressor Width	4" (101.6 mm)
Compressor Height	6.6" (167.64 mm)
System Max Amp Draw	25 Amps
Assembled Length	21"
Assembled Width	23"
Assembled Height	13"
Assembled Weight	40 lbs

SPECIFICATION
Part Number	HK-S4-244K-STDK
Honk Time	3-5 Seconds
Operating Pressure	150 PSI
Restart Pressure	110 PSI
Voltage	12-Volt DC
Horn	Shocker 4 Train Horn Kit
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)
Air Tank	HornAir 2-gallon 6 port air tank
Average Fill Time	50 Sec
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
Assembled Length	21"
Assembled Width	23"
Assembled Height	13"
Assembled Weight	40 lbs

Spare Tire Delete® Kit

BALLING ON A BUDGET? WE GOT YOU.

CLICK HERE FOR SPARE TIRE DELETE INSTALLATION VIDEO

CLICK HERE FOR A CUSTOMER VIDEO REVIEW OF THESE HORNS

EASY ON THE INSTALL AND THE WALLET.

Important Notes:

CLICK HERE FOR SPARE TIRE DELETE INSTALLATION VIDEO

CLICK HERE FOR A CUSTOMER VIDEO REVIEW OF THESE HORNS

THE LAST HORN YOU'LL EVER NEED.

Important Notes:

CLICK HERE TO WATCH

CLICK HERE FOR SPARE TIRE DELETE INSTALLATION VIDEO

CLICK HERE FOR A CUSTOMER VIDEO REVIEW OF THESE HORNS

Warnings & Notices

Hearing Protection Required

Warning

You may also like

Customer Reviews

Spare tire delete kit

Spare tire delete kit

Soo good

Road rage diverted!

Spare tire Delete kit is perfect for my F150!

2.0 GALLON TANK	FILL RATE
0 to 150 PSI	2 min. (± 10 sec.)
110 to 150 PSI	35 sec. (± 05 sec.)

Currency

SIGN UP & SAVE UP TO 15% OFF!

Spare Tire Delete® Kit

BALLING ON A BUDGET? WE GOT YOU.

CLICK HERE FOR SPARE TIRE DELETE INSTALLATION VIDEO

CLICK HERE FOR A CUSTOMER VIDEO REVIEW OF THESE HORNS

EASY ON THE INSTALL AND THE WALLET.

Important Notes:

CLICK HERE FOR SPARE TIRE DELETE INSTALLATION VIDEO

CLICK HERE FOR A CUSTOMER VIDEO REVIEW OF THESE HORNS

THE LAST HORN YOU'LL EVER NEED.

Important Notes:

CLICK HERE TO WATCH

CLICK HERE FOR SPARE TIRE DELETE INSTALLATION VIDEO

CLICK HERE FOR A CUSTOMER VIDEO REVIEW OF THESE HORNS

Warnings & Notices

Hearing Protection Required

Warning

Customer Reviews

Spare tire delete kit

Spare tire delete kit

Soo good

Road rage diverted!

Spare tire Delete kit is perfect for my F150!