Kenworth W900B, W900L 12-14.6k Axle 2008+ Springs
4" width springs, 12,000 lb through 14,600 lb axles only. Springs, except for B81-6045 series, use 1.75" eyes; the B81-6045 series uses 2.08" eyes.
| SRI | OEM |
A S.E. |
B L.E. |
Bushings | Capacity |
| 59-548 | B81-6012-001 | 27 5/16" | 32 1/4" | RB-295, RB-328 | 6,000 lb |
| 59-560 | B81-6012-002 | 27 5/16" | 32 1/4" | RB-295, RB-295 | 6,000 lb |
| 59-562 | B81-6012-003 | 27 5/16" | 32 1/4" | TB-77, TB-77 | 6,000 lb |
| 59-550 | B81-6013-001 | 27 5/16" | 32 1/4" | RB-295, RB-328 | 6,600 lb |
| 59-564 | B81-6013-002 | 27 5/16" | 32 1/4" | RB-295, RB-295 | 6,600 lb |
| 59-566 | B81-6013-003 | 27 5/16" | 32 1/4" | TB-77, TB-77 | 6,600 lb |
| TXL-5912 | None | 28" | 33" | None | 2,200 lb |
| 59-652 | B81-6027-001 | 27" | 32" | RB-295, RB-328 | 7,300 lb |
| 59-654 | B81-6027-002 | 27" | 32" | RB-295, RB-295 | 7,300 lb |
| 59-656 | B81-6027-003 | 27" | 32" | TB-77, TB-77 | 7,300 lb |
| 59-552 | B81-6014-001 | 27 1/4" | 32 1/8" | RB-295, RB-328 | 7,300 lb |
| 59-568 | B81-6014-002 | 27 1/4" | 32 1/8" | RB-295, RB-295 | 7,300 lb |
| 59-570 | B81-6014-003 | 27 1/4" | 32 1/8" | TB-77, TB-77 | 7,300 lb |
| 59-646 | B81-6045-001 | 27 1/4" | 32 3/16" | RB-308, RB-324 | 7,300 lb, 2.08" Eye |
| 59-648 | B81-6045-002 | 27 1/4" | 32 3/16" | TB-81, TB-81 | 7,300 lb, 2.08" Eye |
| 59-650 | B81-6045-003 | 27 1/4" | 32 3/16" | RB-308, RB-308 | 7,300 lb, 2.08" Eye |
| TXL-5910 | None | 28" | 33" | None | 2,200 lb |
Kenworth C500, K100, K300, W900, T300, T400, T450, T600, T800, T2000 Front Suspensions
RB-295 and RB-308: 7 1/2" L
RB-328 and RB-324: 6 11/16" L
Conversion to threaded bushings and pins is an option for increased durability.
In place of RB-295, use 327-540 pins with TB-77 bushings.
In place of RB-328, use 327-544 pins with TB-77 bushings.
In place of RB-308, use 327-540 pins with TB-81 bushings.
In place of RB-324, use 327-544 pins with TB-81 bushings.
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