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Description
2006 - 2021 Kenworth & Peterbilt T400-T880, W900B-W990 And 357-587 Front Leaf Spring - 3 Leaves - 59-594*Diagram Spring May Differ From Actual Spring* Number of Leaves 3 (PD 3) Leaf Spring Width 4" A Leaf Spring Length: 27 1 4" B Leaf Spring Length: 32 3 16" C Leaf Spring Arch: 5 1 4" D Leaf Spring Pack Thickness: 3 5 8" Leaf Spring Capacity: 10,000 lbs. Leaf Spring OEM Number: B81 6018 003 Leaf Spring Eye Threaded Bushings: Front TB 81 Rear TB 81 Leaf Spring Material: PD 512 3 984 Full Taper Location Front Verify the OEM part number and measurements to
- *Diagram Spring May Differ From Actual Spring*
- Number of Leaves - 3 (PD/3)
- Leaf Spring Width - 4"
- A - Leaf Spring Length: 27-1/4"
- B - Leaf Spring Length: 32-3/16"
- C - Leaf Spring Arch: 5-1/4"
- D - Leaf Spring Pack Thickness: 3-5/8"
- Leaf Spring Capacity: 10,000 lbs.
- Leaf Spring OEM Number: B81-6018-003
- Leaf Spring Eye Threaded Bushings: Front TB-81 / Rear TB-81
- Leaf Spring Material: PD/512 3/984 Full Taper
- Location - Front
Verify the OEM part number and measurements to confirm compatibility before purchasing. Need help? Visit: How to Identify a Leaf Spring.
Leaf spring 59-594 is the front leaf spring on Kenworth W900B, W900L, W990, T400, T440, T450, T470, T600, T660, T680, T800 and T880. Also fits Peterbilt 365, 367, 388, 389, 567 and 587. The spring is 4" wide, is a 3 leaf spring with 1 pad and has a capacity of 10,000 lbs. The OEM part number is B81-6018-003. Fits 14,600 lb through 24,000 lb axles only. Models with eyes both ends type springs. Springs in the same OEM number series are the same except for the bushing and all springs use a 2.08" diameter eye: RB-308 - 7 1/2" Long and RB-324 - 6 11/16" Long. For increased durability; Conversion to threaded bushings and pins is an option. Use: Replace TB-81 with 327-540 in place of RB-308 and 327-544 in place of RB-324
Models And Year Ranges:
Fits: 2006-2021 Front Kenworth T400, T440, T450, T470, T600, T660, T680, T800 and T880 (14,600 lb. - 24,000 lb. Axles Only)
Fits: Front Peterbilt With 4" Wide Leaf Springs Except LCF; 365, 367, 388, 389, 567 and 587 (14,600 lb. - 24,000 lb. Axles Only)
Fits: 2008-2021 Front Kenworth W900L, W900B and W990 (14,600 lb. - 24,000 lb. Axles Only)
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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