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Camco FasTen Big Blocks 2-Pack
Oversized interlocking blocks for bigger tires — 40,000 lb rated
Last reviewed: April 2026
Two oversized interlocking leveling blocks rated at 40,000 lbs. Larger footprint than standard Camco blocks for better load distribution under bigger tires or jacks. Stack up to 5 inches high with interlocking polypropylene construction.
Approx., converted from U.S. MSRP.
Price may vary. Prices and availability are subject to change.
At a glance
Quick Specs
Why this product
Why the Camco FasTen Big Blocks 2-Pack?
These are the big brothers to Camco's standard blocks. The larger footprint spreads the load better under wider tires or heavy jacks. At 40,000 lbs, the capacity matches the smaller blocks. You only get two in this pack, so they are best as supplements to a full 10-pack set when you need extra surface area at specific points.
Detailed specs
Full Specifications
| Leveling Type | Stackable Block |
| Weight Capacity | 18144 kg |
| Max Lift Height | 13 cm |
| RV Type Compatibility | travel_trailer, fifth_wheel, class_a, class_b, class_c |
| Interlocking | Yes |
| Pieces Per Set | 2 |
| Anti-Slip Surface | Yes |
| Storage Bag Included | No |
| Material | Polypropylene |
| UV Resistant | Yes |
| Freeze Resistant | Yes |
Best prices
Where to Buy
| Retailer | Price | Status | |
|---|---|---|---|
| Amazon CA | Check price | Check availability | Check Price |
Disclosure: MyCargoRacks.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more
Disclosure: MyCargoRacks.com is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more
