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KL 6450-Slim
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PROFESSIONAL GRADE PERFORMANCE
Step up to peak onboard pneumatic management with the premium Model 6450-Slim system. Driven by our flagship waterproof high-output 100% duty cycle compressor, this system is meticulously engineered for continuous use in punishing automotive, tactical fleet, and industrial environments. It provides unmatched performance through mud, severe water crossings, and deep trail dust without missing a single beat.
POWER BEYOND THE HORNS
The 6450-Slim is more than just a dedicated power source for train horns—it functions as a comprehensive, multi-purpose air command center. Equipped with a space-saving, narrow-profile 3-gallon air tank, this architecture delivers high-pressure air delivery on demand to inflate oversized off-road tires up to 39”, manage heavy-duty air suspension / air bags, actuate differential lockers, or run pneumatic tools. It features a fully sealed submersible pump head and an internally coated anti-corrosion reservoir tank built to outlast the competition.
THE ULTIMATE TRAIL COMPANION
Ready to conquer any terrain, this kit includes the INF-1 premium tire inflation kit. Outfitted with a 24-foot heavy-duty air hose, quick-connect fittings, a luminescent glow-in-the-dark pressure gauge, a clip-lock air chuck, and an integrated pressure release valve, it ensures quick, back-to-back airing up when exiting the trail to get you back on the road safely.
THE VERDICT: The definitive high-pressure pneumatic framework for tight installations. The Model 6450-Slim bridges the gap between narrow real estate limits and commercial-grade output power, providing continuous-duty trail security and rapid air recovery.
AIR COMPRESSOR SPECIFICATIONS
| Ultra Heavy-Duty Air Compressor | |
|---|---|
| Part Number | Model 6450RC |
| Warranty | 2-Year Extended Warranty |
| Max Pressure | 200 PSI |
| Duty Cycle | 100% @ 100 PSI |
| Flow Rate | 2.1 CFM @ 0 PSI |
| Compressor Type | Waterproof Sealed, Oil-less Architecture |
| Voltage | 12V DC |
| Motor Type | Permanent Magnetic Motor |
| Max Tank Size | 7 Gallon |
| Max Amp Draw | 23 Amps |
| Dimensions | 11.25” x 4” x 6.5” |
| Mounting Holes | 8.9” x 3.31” Spacing Layout |
| Mounting Note | Any position except inverted/upside down |
| Shipping Weight | 12 lbs |
| Pressure Switch | P/N 2151 Compatibility Structure |
AIR TANK SPECIFICATIONS
| Slim Mount Air Tank | |
|---|---|
| Part Number | Model 6351RT |
| Warranty | 1-Year Warranty |
| Tank Capacity | 3-Gallon |
| Construction | All Steel Design (Gloss Black Epoxy Finish) |
| Internal Coating | Cortec Internal Anti-Corrosion Coating |
| Mounting Legs | 2 Legs w/ 4 Mounting Points Layout |
| Air Tank Ports | Five - 1/4" NPT Ports & One - 3/8" NPT Port |
| Mounting Hardware | Fitting Pack - 4 Bolts, Nuts, Washers |
| Max Pressure | 200 PSI |
| Dimensions | 27” L x 6” W x 8” H |
AIR TANK FILL RATES
| Tank Size | Pressure Range | Fill Rate |
|---|---|---|
| 2.5 Gal | 0 - 150 PSI | 2 Min 54 Sec (+/- 5 Sec) |
| 2.5 Gal | 110 - 150 PSI | 54 Sec (+/- 5 Sec) |
| 5.0 Gal | 0 - 150 PSI | 5 Min 57 Sec (+/- 10 Sec) |
| 5.0 Gal | 110 - 150 PSI | 1 Min 53 Sec (+/- 5 Sec) |
INSTALLATION INSTRUCTION LINKS:

$549.95
Kleinn Automotive Accessories is committed to delivering high-quality products to our customers. We stand behind the craftsmanship and materials of our products by offering a comprehensive one-year limited warranty. This warranty is extended to the original purchaser, ensuring that when our products are installed properly and used under standard conditions, they will be free from defects in workmanship and materials for a period of one year from the original date of purchase.
This warranty encompasses a promise that the product you have purchased will perform as expected under normal use conditions and will not suffer from flaws in materials or craftsmanship. However, it is important to note that this warranty does not cover any damage that results from abusive use, operation that is not in line with the product’s intended purpose, or harm resulting from exposure to harsh environmental conditions. In the event that a product is found to be defective within the warranty period following a thorough inspection, Kleinn Automotive Accessories reserves the right to either repair or replace the defective item at no additional charge to the purchaser. It is our goal to ensure that our products meet the high standards that our customers expect, but we also want to clarify that Kleinn is not responsible for covering any costs related to the installation of our products, nor are we liable for any loss or damage that may occur as a result of the repair or replacement process of any product under warranty.
Understanding the specific needs of our customers and the demands placed on certain products, Kleinn Automotive Accessories is pleased to offer an exclusive extended two-year warranty for our 6450/6650 Compressors and 730 Horns. This special warranty extension reflects our confidence in these products’ durability and performance. Eligible products under this extended warranty will enjoy all the benefits of our standard one-year warranty with an additional year of protection, totaling two years from the date of purchase. This extended warranty coverage ensures that these specific models, recognized for their robustness and reliability, receive the extra assurance customers desire for these critical components.
Should you need to initiate a return under the warranty, we have a straightforward process designed to make it as convenient as possible for our valued customers. To start, you will need to email a copy of your sales receipt, which must be dated within the past year for standard warranty claims or within the past two years for claims under the extended warranty for the 6450 Compressors and 730 Horns. This email should be directed to our Warranty Manager and include your full name, email address, telephone number, and a concise description of the problem you are experiencing.
Upon receipt of your email, a dedicated representative from Kleinn Automotive Accessories will reach out to you directly. Our first step will always be to attempt to resolve the issue through technical support, aiming to provide a quick and effective solution. If the problem cannot be addressed remotely, our representative will issue a Return Authorization number. This number is crucial as it will identify your return throughout the inspection process. You are then required to send the product back to Kleinn Automotive Accessories for a comprehensive physical inspection.
Upon inspection, if the product is determined to be defective due to issues in workmanship or materials, Kleinn will undertake to either repair or replace the product at our discretion. We are committed to ensuring that our customers receive products that meet our high-quality standards, and we will make every effort to resolve warranty claims to your satisfaction. However, if the inspection reveals that the product does not have a material defect, we will return the unit to the customer. In such cases, the shipping costs for the return will be the responsibility of the customer.
Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase.
1. Please email support@kleinn.com to request a refund and we will assign you a Return Authorization #.
2. Mail your returned item to:
Kleinn Automotive Accessories
Returns Department
4045 N Highway Drive
Tucson, AZ 85705
3. Include in your package a signed letter stating the reason for your return and the original receipt.
Merchandise that has been worn, used, or altered will not be accepted for return or exchange.
All returns are subject to a 15% restocking fee, which will be deducted from your refund. If shipping and handling fees were applied to your order, they are non-refundable.