Kleinn RNGR-220 Ford Ranger Train Horn & Onboard Air Kit Review

Methodology

This review aggregates publicly available information from manufacturer specifications, retailer listings, and verified user reviews. We do not perform hands-on testing. Last reviewed: October 29, 2026. Our primary sources are Kleinn’s product page for the 2019-2023 Ford Ranger direct-fit system, Kleinn’s RNGR-102-1/220 installation manual (revision dated 02/15/2022), and Kleinn’s separate pages for the Model 220 horns and the 6450RC compressor. We cross-checked price, part numbers and contents against Desert Rat’s retail listing. Every external URL we relied on is in the Sources section at the end.

Quick verdict

The Kleinn RNGR-220 is the only vehicle-specific train horn and onboard air package we’ve found for the 2019-2023 Ford Ranger. Everything bolts to factory mounting points, the spare tire stays put, and it includes a 200 PSI, 100% duty-cycle waterproof compressor that also airs up tires. In our editorial opinion, that makes it the cleanest way to put a real train horn on this truck. We rate it 4.1/5. We took points off for three things. Kleinn publishes two different decibel figures for the same Model 220 horns, and neither one gives a test distance. The manual’s fitment chart only covers 2019-2021 while the store says 2019-2023. And at our last check, both kit versions showed as sold out on Kleinn’s store.

What it is

The RNGR-220 is the more expensive of two versions of Kleinn’s “Direct Fit Train Horn and Onboard Air Systems for 2019-2023 Ford Ranger.” Both share one product page. You pick between:

• RNGR-220: Model 220 “Mini Beast” dual ABS train horns, the 6450RC compressor and a 1.5-gallon tank, at $999.95
• RNGR-102-1: Model 102 dual metal-trumpet truck horns, the smaller 6275RC compressor and the same 1.5-gallon tank, at $749.95

The kit doesn’t need a frame-rail rack or a spare-tire delete. Kleinn’s manual puts each part in its own spot under the truck. The compressor goes in the passenger-side pocket behind the rear wheel well, the tank goes in the matching driver-side pocket, and the horns hang under the cab below the driver’s seat. Each part has its own powder-coated bracket. The kit is aimed at Ranger owners who want a real two-tone train horn plus usable onboard air without fabricating mounts. If you’re still comparing options for this truck, see our Ford Ranger and Maverick train horn guide.

A naming note: the horns are a dual set, two separate ABS trumpets with one solenoid each. They are not a three-trumpet horn. Kleinn’s triple ABS train horn is the Model 230.

Specifications

Spec	Value
Kleinn SKU	RNGR-220 (sister kit: RNGR-102-1)
Vehicle fitment	2019-2023 Ford Ranger per Kleinn’s store; the manual’s application chart lists 2019-2021, all drives, engines, bodies and trims
Horns	Kleinn Model 220 “Mini Beast,” 2 trumpets, individually mounted
Sound output (kit page)	154.2 dB (test distance and pressure not disclosed)
Sound output (Model 220 horn page)	151.8 dB at 150 PSI (test distance not disclosed)
Horn construction	Composite ABS trumpets, zinc alloy base/driver
Trumpet dimensions	Small 11.5 x 5 x 5 in; large 16.25 x 6.25 x 6.25 in
Horn valves	2x Model 307 Vortex 4 12 V solenoids, separate 1/4 in airlines
Horn optimal pressure	140-160 PSI; 1.5-gallon minimum tank
Compressor	Kleinn 6450RC, waterproof and submersible, oil-less, 12 V DC
Compressor max pressure	200 PSI
Compressor duty cycle	100% at 100 PSI
Compressor flow	2.1 CFM at 0 PSI
Compressor max amp draw	23 A
Compressor dimensions	11.25 x 4 x 6.5 in
Pressure switch	Kleinn 2151, 150 PSI cut-out
Safety valve	1/4 in NPT, 175 PSI
Air tank	1.5 gallon (Kleinn 6275RT)
Chord frequencies	Not disclosed
Listed shipping weight	41 lb (RNGR-220 variant on Kleinn’s store)
Estimated install time	About 5 hours (professional install with setup and testing)
Warranty	1-year limited (Kleinn default); 2-year extended on the 6450RC compressor
Price	$999.95 (Kleinn store and Desert Rat)

The decibel numbers need some context. Kleinn’s Ranger kit page says the 220 horns produce “a booming 154.2 Decibels.” Kleinn’s current standalone Model 220 page lists 151.8 dB at 150 PSI. Neither page gives a measurement distance. Our Model 220 Mini Beast review covers Kleinn’s spec revision in more detail. Treat both numbers as manufacturer claims, not comparable measurements. Our guide to advertised vs. real-world decibels explains why distance matters so much.

Retail spec copy also varies. Desert Rat’s listing describes the trumpets as 13 in and 8 in, and it names a 6351RT tank in one line and a 6275RT tank in another. We went with Kleinn’s current horn page and the install manual’s parts list.

What it includes

Per the parts list in Kleinn’s installation manual, the RNGR-220 box contains:

• 6450RC compressor kit with mounting hardware and remote intake (snorkel) line
• Model 220 horn kit with solenoids and 1/4 in air tubing
• 1.5-gallon air tank (6275RT)
• Vehicle-specific brackets: RNGR-100 compressor bracket, RNGR-201/202 front and rear tank brackets, RNGR-300 horn bracket
• 2151 pressure switch, 175 PSI safety valve, tank drain, T-adapter and compression fittings
• 12 ft and 25 ft rolls of 1/4 in airline, plus Kleinn Air Horn Juice thread sealant
• 1302 remote quick-connect coupler relocation kit and INF-1 inflator kit (220 version only)
• Model 320 nickel-plated “Terminator” remote horn button, full wire kit, and split loom (1/2 in x 30 ft, 1/4 in x 12 ft)
• 7/16 in bolts, washers and nuts for the brackets

Desert Rat describes the inflator as a quick-connect tire inflator with a digital gauge and a storage bag. The quick-connect coupler and inflator are the main hardware differences from the RNGR-102-1, which skips both.

Pros

• A true direct-fit kit for the 2019-2023 Ranger. Brackets reuse factory hardware in the rear wheel-well pockets and under the cab, and the spare tire stays in place
• The 6450RC is Kleinn’s waterproof, fully submersible compressor, rated 200 PSI max and 100% duty cycle at 100 PSI, with a remote snorkel intake for water crossings
• Real onboard air. The quick-connect coupler and inflator kit let you air up tires, and Kleinn rates the 6450RC for tires up to 39 in
• Each of the two Model 220 trumpets gets its own Vortex 4 solenoid and airline, and they’re compact enough to fit under the cab
• The install manual is detailed: parts tables, torque specs (37 lb-ft for the bracket bolts), wiring diagram, testing steps and maintenance schedule
• Kleinn says it works with both powered and fixed running boards

Cons

• Two different dB claims for the same horns (154.2 vs 151.8), and neither gives a test distance
• Year coverage conflicts: the store lists 2019-2023, but the manual’s application chart only lists 2019-2021, and nothing covers the redesigned 2024+ Ranger
• Both kit versions showed as sold out on Kleinn’s store at our last check
• The 1.5-gallon tank is only the Model 220’s minimum. Kleinn’s manual says horns sound for 3-7 seconds depending on kit and tank, so expect short blasts
• Kleinn’s default warranty is only 1 year limited; only the compressor gets 2 years
• No chord frequencies published, and the horns are ABS rather than chrome or brass

Alternatives

• Kleinn RNGR-102-1. The same direct-fit mounting on the same truck for $749.95, with Model 102 dual metal trumpets (Kleinn claims 153.5 dB, no distance given) and the smaller 6275RC compressor. It skips the quick-connect coupler and inflator. Pick it if you want the bolt-on install for $250 less and don’t need tire inflation.
• Kleinn HK5 Mini Beast. The same Model 220 horns as a universal kit with a 6275RC compressor and 1.5-gallon tank, $549.95 on Kleinn’s store. You supply the mounting. See our Kleinn HK5 review.
• HornBlasters Spare Tire Delete Kit. A four-trumpet Shocker XL and 2-gallon tank that mount in the spare-tire location, $999.99 or $1,299.99 depending on compressor. If you’re considering it for a 2024+ Ranger, confirm midsize fit with HornBlasters first. See our Spare Tire Delete review.

For Kleinn’s full-size truck equivalent, see the SDKIT17-734 Super Duty kit. The full lineup is in our Kleinn reviews hub.

Install / compatibility notes

Kleinn’s manual describes the RNGR-220 as needing “moderate mechanical aptitude.” It estimates about 5 hours for a typical home mechanic or tech doing a first install with setup and testing. The breakdown is roughly 1 hour for the compressor, 2 for the tank and 2 for the horns. The work happens on a lift or ramps. The tank and compressor brackets drop over a slotted flange in each rear wheel-well pocket and reuse the OEM hardware. The horn bracket bolts to factory points under the driver’s seat, and the shorter trumpet goes on the driver side.

Some drilling is still possible. The manual says any of the listed vehicles may need holes for ground wires and switches, and the horn button needs a 3/4 in hole with at least 1 in of clearance behind it. If your Ranger has factory upfitter switches, Kleinn says you can use one of those instead. The electrical side is a standard fused, relay-switched circuit with the pressure switch on the tank. Our train horn relay wiring guide covers the same layout in general terms.

Some operating notes from the manual:

• Initial tank fill takes about 1.5-3 minutes. If the compressor runs 5 minutes or more, check for leaks.
• Run the engine during long compressor use, like filling tires, so you don’t drain the battery. The thermal overload resets after 30 minutes.
• Drain the tank monthly or every 10 compressor hours. Clean or replace the intake filter yearly or every 12,000 miles.
• Re-check bracket torque and look for chafed wiring or tubing yearly or every 12,000 miles.

On fitment: if you own a 2022 or 2023 Ranger, have Kleinn confirm fit before you order. The store and the manual disagree, and only Kleinn can settle it. For why a 1.5-gallon tank limits blast length, see our air tank size guide and compressor duty cycle explainer. Before you use the horns on the road, check our guide to train horn legality on cars.

Sources

• Kleinn — Direct Fit Train Horn and Onboard Air Systems for 2019-2023 Ford Ranger — RNGR-220 ($999.95) and RNGR-102-1 ($749.95) pricing, 154.2 dB and 153.5 dB claims, Model 220 dual ABS horns with two Vortex 4 solenoids, Model 102 metal trumpets, 2019-2023 store fitment, sold-out status, 41 lb / 34 lb listed shipping weights, 1-year limited warranty terms, and all three product photos
• Kleinn — RNGR-102-1/220 Installation & Operation Manual (PDF) — 2019-2021 application chart, running-board compatibility, component locations, 5-hour install estimate, full parts list (6450RC, 6275RT 1.5-gal tank, 2151 switch, 175 PSI safety valve, 1302 coupler, INF-1 inflator, 320 button, brackets), torque spec, drilling notes, fill time, 3-7 second horn duration, thermal overload reset, maintenance intervals
• Kleinn — Model 220 “Mini Beast” Dual Black ABS Train Horns — 151.8 dB at 150 PSI, ABS/zinc construction, trumpet dimensions, dual 307 Vortex 4 solenoids, separate 1/4 in airlines, 140-160 PSI, 1.5-gallon minimum tank, 1-year horn warranty
• Kleinn — Model 6450RC Waterproof 200 PSI Air Compressor — 200 PSI max, 100% duty cycle at 100 PSI, 2.1 CFM, 23 A max draw, 11.25 x 4 x 6.5 in, snorkel intake, 39 in tire rating, 7-gallon max tank, 2151 pressure switch 150 PSI cut-out, 2-year extended warranty
• Kleinn — Model 6275RC Waterproof 150 PSI Air Compressor — the smaller compressor used in the RNGR-102-1 version
• Kleinn — Model HK5 Universal “Mini Beast” Dual ABS Train Horn System — $549.95 price for the universal kit with the same Model 220 horns
• HornBlasters — Spare Tire Delete Kit — $999.99 / $1,299.99 pricing used in Alternatives
• Desert Rat — Kleinn RNGR-220 Onboard Air System w/Horns — retail price cross-check ($999.95), UPC listing, inflator with digital gauge and storage bag, older trumpet length and tank part-number copy
• Kleinn — Model 230 “Beast” ABS Triple Train Horns — confirms the Model 230 is Kleinn’s triple ABS train horn

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