KMC Impact Forged Monoblock Wheel
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Warranty Information
Vendor warranty summary
KMC Wheels Warranty
At a glance: Structural warranty for as long as the original buyer owns the wheels; 1–2 years on finish
This is KMC Wheels's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| Structure (aluminum wheels) | As long as the original retail purchaser owns them |
| Materials and workmanship | 1 year |
| Chrome finish (peeling/lifting only) | 1 year |
| Painted finish (peeling/lifting) | 1 year |
| PVD finish (peeling/lifting) | 2 years |
| Polished aluminum finish | Not covered |
| Steel wheels | 90 days |
- Original purchaser only — coverage does not transfer if you sell it.
- Keep your NVMOS order confirmation — proof of purchase is required.
What's covered
- Structural failure under normal, intended use while the original buyer owns the wheel
- Defects in materials and workmanship for one year
- Chrome and painted finishes against peeling or lifting for one year
- PVD finishes against peeling or lifting for two years
- Approved claims are repaired or replaced
What's not covered
- Pitting on chrome
- Polished aluminum finishes
- Not following installation guidelines
- Improper care or harsh/caustic cleaners
- Accidents or road hazards
- Racing or off-road abuse
- Removal, shipping and reinstallation costs
- Second owners — warranty ends when the wheels change hands
How to make a KMC Wheels warranty claim
- Take or return the wheel to the dealer you bought it from
- Bring the original sales receipt
- KMC inspects and, if approved, repairs or replaces the wheel
KMC Wheels contact: Phone: 877-757-9222 · Claim page / support
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to KMC Wheels, and help it along either way.
Shop KMC Wheels at NVMOS
See all KMC Wheels products, lead times and FAQs →
Disclaimer: The information on this page describes KMC Wheels's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: KMC Wheels official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.
About the brand
KMC has been making wheels since 1982, with a range built around off-road trucks, Jeeps and SUVs. NVMOS carries KMC cast, flow-formed and forged wheels plus true beadlocks, in 15- to 20-inch diameters and 5- to 8-lug patterns, for Jeep, truck and SUV owners.
Based in: Greenwood Village, Colorado · Since: 1982 · Lead time: In stock: ships in 24–48 hours
Shop all 74 KMC WheelsWarrantyAll brands
Warranty terms are set by KMC Wheels, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
KMC Impact Forged Monoblock Wheel (KM447 / KM452)
The KMC Impact Forged Monoblock is built for abuse on trails and streets. It is based on the Impact OL and Impact Forged Beadlock wheels, with the same motorsport-inspired multi-spoke design. It sits in our off-road wheels category.
It is made from aerospace-grade 6061-T6 forged aluminum for light weight and durability. The KM447 is for 6-lug applications and includes a billet snap-in cap. The KM452 is for 8-lug and includes a bolt-on plastic cap. Compare other non-beadlock wheels too.
Universal fitment, chosen by bolt pattern. Sizes: 18x9 0mm, 18x9 18mm, 18x9 -12mm, 17x8.5 0mm, 17x8.5 -10mm. Bolt patterns: 8x170, 8x165.1, 8x180, 6x139.7, 6x135. Finishes: Raw Machined, Metallic Blue, Satin Black. Check bolt pattern, offset and brake clearance against your vehicle before ordering.
| Part # | Finish | Size / Offset | Bolt Pattern | Backspace | Center Bore | Load Rating | Weight |
|---|---|---|---|---|---|---|---|
| KM447LX17856810N | Metallic Blue | 17x8.5 -10mm | 6x139.7 | 4.36" | 106.10mm | 2500 lbs | 25.11 lbs |
| KM447DX17856810N | Raw Machined | 17x8.5 -10mm | 6x139.7 | 4.36" | 106.10mm | 2500 lbs | 25.11 lbs |
| KM447MX17856810N | Satin Black | 17x8.5 -10mm | 6x139.7 | 4.36" | 106.10mm | 2500 lbs | 25.11 lbs |
| KM447LX17856300 | Metallic Blue | 17x8.5 0mm | 6x135 | 4.75" | 87.10mm | 2500 lbs | 25.11 lbs |
| KM447DX17856300 | Raw Machined | 17x8.5 0mm | 6x135 | 4.75" | 87.10mm | 2500 lbs | 25.11 lbs |
| KM447MX17856300 | Satin Black | 17x8.5 0mm | 6x135 | 4.75" | 87.10mm | 2500 lbs | 25.11 lbs |
| KM452LX18908712N | Metallic Blue | 18x9 -12mm | 8x170 | 4.53" | 125.10mm | 4000 lbs | 30.40 lbs |
| KM447LX18906812N | Metallic Blue | 18x9 -12mm | 6x139.7 | 4.53" | 106.10mm | 2500 lbs | 26.65 lbs |
| KM452DX18908712N | Raw Machined | 18x9 -12mm | 8x170 | 4.53" | 125.10mm | 4000 lbs | 30.40 lbs |
| KM452DX18908012N | Raw Machined | 18x9 -12mm | 8x165.1 | 4.53" | 125.10mm | 4000 lbs | 30.40 lbs |
| KM447DX18906812N | Raw Machined | 18x9 -12mm | 6x139.7 | 4.53" | 106.10mm | 2500 lbs | 26.65 lbs |
| KM452MX18908712N | Satin Black | 18x9 -12mm | 8x170 | 4.53" | 125.10mm | 4000 lbs | 30.40 lbs |
| KM447MX18906812N | Satin Black | 18x9 -12mm | 6x139.7 | 4.53" | 106.10mm | 2500 lbs | 26.65 lbs |
| KM452DX18908700 | Raw Machined | 18x9 0mm | 8x170 | 5.00" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM452DX18908000 | Raw Machined | 18x9 0mm | 8x165.1 | 5.00" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM452DX18908800 | Raw Machined | 18x9 0mm | 8x180 | 5.00" | 124.20mm | 4000 lbs | 29.96 lbs |
| KM447DX18906800 | Raw Machined | 18x9 0mm | 6x139.7 | 5.00" | 106.10mm | 2500 lbs | 26.21 lbs |
| KM447DX18906300 | Raw Machined | 18x9 0mm | 6x135 | 5.00" | 87.10mm | 2500 lbs | 26.43 lbs |
| KM452MX18908800 | Satin Black | 18x9 0mm | 8x180 | 5.00" | 124.20mm | 4000 lbs | 29.96 lbs |
| KM452MX18908700 | Satin Black | 18x9 0mm | 8x170 | 5.00" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM447MX18906800 | Satin Black | 18x9 0mm | 6x139.7 | 5.00" | 106.10mm | 2500 lbs | 26.21 lbs |
| KM447MX18906300 | Satin Black | 18x9 0mm | 6x135 | 5.00" | 87.10mm | 2500 lbs | 26.43 lbs |
| KM452LX18908018 | Metallic Blue | 18x9 18mm | 8x165.1 | 5.71" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM452LX18908718 | Metallic Blue | 18x9 18mm | 8x170 | 5.71" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM452LX18908818 | Metallic Blue | 18x9 18mm | 8x180 | 5.71" | 124.20mm | 4000 lbs | 29.96 lbs |
| KM452DX18908818 | Raw Machined | 18x9 18mm | 8x180 | 5.71" | 124.20mm | 4000 lbs | 29.96 lbs |
| KM452DX18908718 | Raw Machined | 18x9 18mm | 8x170 | 5.71" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM447DX18906818 | Raw Machined | 18x9 18mm | 6x139.7 | 5.71" | 106.10mm | 2500 lbs | 25.33 lbs |
| KM447DX18906318 | Raw Machined | 18x9 18mm | 6x135 | 5.71" | 87.10mm | 2500 lbs | 25.55 lbs |
| KM452MX18908018 | Satin Black | 18x9 18mm | 8x165.1 | 5.71" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM452MX18908718 | Satin Black | 18x9 18mm | 8x170 | 5.71" | 125.10mm | 4000 lbs | 29.74 lbs |
| KM452MX18908818 | Satin Black | 18x9 18mm | 8x180 | 5.71" | 124.20mm | 4000 lbs | 29.96 lbs |
| KM447MX18906818 | Satin Black | 18x9 18mm | 6x139.7 | 5.71" | 106.10mm | 2500 lbs | 25.33 lbs |
| KM447MX18906318 | Satin Black | 18x9 18mm | 6x135 | 5.71" | 87.10mm | 2500 lbs | 25.55 lbs |
Complete your build
The pieces owners run with this one — matched to your build and to each other. Do the whole truck in one order instead of three.
$867.00
$4,361.77
$249.95
$50.99
$799.99
Specifications
KMC Impact Forged Monoblock Wheel FAQs
What is the difference between KM447 and KM452?
The KM447 is for 6-lug applications with a billet snap-in cap. The KM452 is for 8-lug with a bolt-on plastic cap.
What is it made from?
Aerospace-grade 6061-T6 forged aluminum.
What sizes are offered?
18x9 0mm, 18x9 18mm, 18x9 -12mm, 17x8.5 0mm and 17x8.5 -10mm.
What finishes can I pick?
Raw Machined, Metallic Blue and Satin Black.
Multi-column
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