Kenworth T400, T440, T450, T470, T600, T660, T680, T800, T880 16-24k Axle 59" 2004-06 Springs
4" Width, 2.08" diameter eyes; for 16,000 lb through 24,000 lb axles
| SRI | OEM |
A S.E. |
B L.E. |
Bushings | Capacity |
| 59-530 | HK48110-3230 | 27" | 32" | RB-308, RB-308 | 8,000 lb |
| 59-508 | HK48110-3231 | 27" | 32" | TB-81, TB-81 | 8,000 lb |
| TXL-5912 | None | 28" | 33" | None | 2,200 lb |
| 59-512 | HK48110-3091 | 27" | 32" | TB-81, TB-81 | 9-10,000 lb |
| 59-578 | B81-6022-001 | 27" | 32" | RB-308, RB-308 | 11-12,000 lb, 3 Stage |
| 59-582 | B81-6022-003 | 27" | 32" | TB-81, TB-81 | 11-12,000 lb, 3 Stage |
| TXL-5910 | None | 28" | 33" | None | 2,200 lb |
Kenworth C500, K100, K300, W900, T300, T400, T450, T600, T800, T2000 Front Suspensions
Conversion to threaded bushings and pins is an option for increased durability.
In place of RB-308, use 327-540 pins with TB-81 bushings.
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