| Condition | new |
| MPN | ECP845399CP |
| Thread Pitch | 14mm x 1.5 or 14x1.5 or M14x1.5 |
| Place of delivery | CA |
| Wheel Bolt Pattern | 8x180mm |
| Package Gross Weight | 17.74 lbs. |
| Lug Patterns | 8 Lugs |
| Fitment Note 2 | Will Not Fit on Rear Hub, beacuse of the lips |
| Outer Diameter | 215mm |
| Surface Finish | CNC Machined Polished Aluminum Finish |
| Country of Origin | China |
| UPC | Does not apply |
| Color | Black |
| Quantity | 4pcs |
| Warranty | 1 Year |
| Hubcentirc | Yes |
| Stud Grade | 10.9 |
| Center Bore Size | 124.1mm |
| Bolt Shank Length | 45mm |
| Type | Wheel Sapcer |
| Thickness | 1" or 25mm |
| Other Part Number | 2011-2024 GMC Sierra 2500 HD, GMC Sierra 3500 HD SRW |
| Vehicle Bolt Pattern | 8x180mm |
| Interchange Part Number | 2011-2024 Chevrolet Silverado 2500 HD, Silverado 3500 HD SRW |
| Torqued Down By Hand At | 85-90 FT/LBS |
| Fitment Note 1 | The spacers will not fit Dually Models |
| Material | High Quality t6 6061 Billet Aluminum |
Description
xPart Overview
The 4Pcs 1" Hub Centric Wheel Spacers (8x180 Bolt Pattern, 124.1 mm CB) are forged-aluminum wheel spacers designed for heavy-duty trucks running the 8x180 mm bolt pattern with a 124.1 mm hub center bore. They push the wheels outward by 1" (25.4 mm) per side to clear oversized brake calipers, wider aftermarket wheels, or to give the stance a more aggressive track width. Each spacer is hub-centric — the 124.1 mm center ring aligns with the truck's hub for vibration-free, true-running fitment.
KOEEP supplies the spacers as a set of 4 (front and rear axle), pre-machined and pre-drilled for the OE-style studs and lug pattern. They are intended for the 2011-2024 Chevrolet Silverado 2500 HD / 3500 HD and equivalent GMC Sierra HD trucks with the 8x180 bolt pattern.
Vehicle Compatibility
| Make | Model | Year | Bolt Pattern / Hub |
|---|---|---|---|
| Chevrolet | Silverado 2500 HD (K2) | 2011-2024 | 8x180 mm, 124.1 mm hub CB, 14x1.5 studs |
| Chevrolet | Silverado 3500 HD (K2) | 2011-2024 | 8x180 mm Dually (DRW) — verify rear hub before use on dual rear wheel |
| GMC | Sierra 2500 HD (shared platform) | 2011-2024 | 8x180 mm, 124.1 mm hub CB, 14x1.5 studs |
| GMC | Sierra 3500 HD (shared platform) | 2011-2024 | 8x180 mm — verify single-rear-wheel (SRW) configuration |
This spacer is engineered for the 8x180 mm bolt pattern with a 124.1 mm hub bore (heavy-duty GM trucks). It is not a direct fit for the 1500-series 6x5.5" (6x139.7) bolt pattern. Confirm your lug pattern and hub bore before ordering. For dual-rear-wheel (dually) applications, verify the inner rear wheel's clearance.
Key Specifications
| Quantity | 4 pieces (front + rear axle set) |
| Thickness | 1 inch (25.4 mm) per side |
| Bolt Pattern | 8x180 mm |
| Hub Center Bore (CB) | 124.1 mm (hub-centric) |
| Stud Thread | 14x1.5 (verify before use) |
| Material | Forged / billet aluminum alloy, anodized finish |
| Condition | Brand New Aftermarket |
| Warranty | 1 Year |
Why Choose This Part?
- Built for 2011-2024 Chevrolet Silverado 2500 HD: 8x180 mm bolt pattern and 124.1 mm hub-centric center bore engineered for the K2 platform's hub and stud geometry.
- Hub-Centric Design: The 124.1 mm center ring mates to the truck's hub so the load is carried by the hub — not the lug studs — for vibration-free, true-running fitment at highway speeds.
- Clears Big Brakes & Wider Wheels: 1" per side provides clearance for oversized brake calipers and wider aftermarket wheels that would otherwise sit too close to the suspension components.
- Forged / Billet Aluminum: Lightweight yet strong; corrosion-resistant anodized finish suited to underbody duty in snow-belt and off-road environments.
- 1-Year Warranty & Free Worldwide Shipping: Full 12-month coverage plus free shipping on every order.
How to Order
Click Add to Quote above, or email us at support@koeep.com with your vehicle's Make / Model / Year, your existing bolt pattern, and your wheel offset. Our parts team will respond within 24 hours with availability, shipping ETA, and pricing.
Reminder: after installation, lug nuts should be re-torqued to OEM spec after the first 50-100 miles of driving. Verify adequate fender and brake-clearance clearance before final tightening.
Ready to order this part?
Click Add to Quote or email support@koeep.com with the SKU and your vehicle details.
Request a Quote →Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
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Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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