Constancy is the first-listed truck and bus radial brand of Weifang Yuelong Rubber Co., Ltd, based in Taitou, Shouguang, in Shandong province. Yuelong dates from 1986 and reports annual capacity of 5.6 million all-steel radial tyres. The Constancy catalogue runs to 32 truck sizes, from 6.50R16LT to 12.00R24, and the name also appears on passenger and SUV tyres sold through retailers abroad.
| Manufacturer | Weifang Yuelong Rubber Co., Ltd |
|---|---|
| Headquarters | Taitou, Shouguang, Weifang, Shandong, China |
| Founded | 1986 |
| Annual capacity | 5.6 million truck and bus radial tyres |
| Segments | TBR and light truck radial; passenger, SUV and 4x4 lines at retailers |
| Truck size range | 32 sizes, 6.50R16LT to 12.00R24 |
| Sister brands | Carleo, Teerex, Kaitong, Yitong, Aonaite |
| Export markets | Latin America, Africa, Middle East, South-East Asia, Central Asia |
| Official website | yuelonggroup.net |
Weifang Yuelong Rubber states that it was established in 1986 and holds total assets above 500 million US dollars. Its factory address is Taitou, a town in Shouguang county-level city, Weifang. The company quotes yearly output capacity of 5.6 million all-steel radial truck and bus tyres across more than 550 specifications. It names Cabot, Bekaert and Lanxess as raw material suppliers.
Constancy heads the brand list on the Yuelong website, ahead of Carleo, Teerex, Kaitong and Yitong, and it has the widest size list of the five. At the 136th Canton Fair in October 2024 the company named the Constancy AH398 in 385/65R22.5 as its best seller. At Tyrexpo Asia in Singapore in March 2025 it showed the Constancy SH57 steer and trailer pattern.
Truck and bus radial (TBR). Steer and trailer, drive and all-position patterns for long haul, regional, on/off-road and mining work. Tubeless sizes cover 17.5, 19.5, 22.5 and 24.5 inch rims, including 315/80R22.5, 295/80R22.5, 11R22.5 and 385/65R22.5. Tube-type sizes run from 9.00R20 to 12.00R24.
Light truck radial. All-steel light truck sizes 6.50R16LT, 7.00R16LT, 7.50R16LT and 8.25R16LT, with the FC12 all-position pattern listed in 7.00R16LT and 7.50R16LT.
Passenger, SUV and 4x4. Retailers list Constancy car tyres such as the LY688 touring pattern in 15 to 18 inch sizes and the LY566 in 18 to 22 inch sizes. A New Zealand retailer also lists Terra Xplorer all-terrain and Conqueror C5 mud-terrain lines.
Related brands on this site: Carleo.
| Pattern | Position / vehicle | Application | Common sizes |
|---|---|---|---|
| 698 | Steer and trailer | Long haul | 11R22.5, 295/80R22.5, 315/80R22.5 |
| SH57 | Steer and trailer | Long haul, 265 mm tread cap | 295/80R22.5, 315/80R22.5 |
| AH398 | Steer and trailer | Trailer and wide-single steer | 385/65R22.5 |
| ZY81 | All position | Highway and regional | 11R22.5, 295/80R22.5 |
| 896 | All position | Mixed service | 315/80R22.5, 12.00R24 |
| DM766 | Drive | Long haul | 315/80R22.5 |
| DM59 | Drive | Long haul, 24.5 mm tread depth | 295/80R22.5 |
| DM357 | Drive | Regional | 11R22.5 |
| DMW3 | Drive | Winter and snow roads | 11R22.5 |
Yuelong says its brands are registered in more than 150 countries and that it sells to more than 160. At the Canton Fair in 2024 it reported meeting Constancy buyers from Latin America, Africa, the Middle East and Asia. In Singapore in 2025 it listed visitors from Indonesia, Malaysia, Australia, Taiwan, Cambodia, Myanmar and Central Asia. Constancy was also shown at the Latin Tyre and Auto Parts Expo in Panama in August 2026.
Constancy car tyres were launched in Sri Lanka in 2014 through Reliance Lanka Ltd. The manufacturer's English website does not publish a certificate list, so approvals such as DOT, ECE or GCC should be confirmed per size before ordering.
Constancy truck tyres ship from the Yuelong plant at Taitou, Shouguang, the same factory that builds Carleo and Teerex, so the three can be combined from one origin. No Constancy production outside China was found. Loading quantity, lead time and minimum order depend on your size mix. Use the enquiry form on this page for a current quotation.
Weifang Yuelong Rubber Co., Ltd, a truck and bus radial tyre maker founded in 1986 in Shouguang, Shandong.
The manufacturer lists 32 sizes, from 6.50R16LT light truck tyres up to 12.00R24, including 315/80R22.5, 11R22.5 and 385/65R22.5.
Yuelong named the AH398 steer and trailer pattern in 385/65R22.5 as its best seller at the Canton Fair in October 2024.
Yes. The DMW3 drive pattern in 11R22.5 is listed for winter and snow roads.
Retailers sell Constancy passenger patterns such as LY688 and LY566, but the Yuelong product catalogue itself lists truck and light truck sizes only.
