Description
AUTO SLACK ADJUSTER - 28 SPLINE - 1 1/2" - 5 1/2" (DRIVE AXLE)
PART NUMBER(S):
Fleet Products: FP1140 | OE: 1140, A35-3275-Z-1144 | Automann: 138.281, 138.2810
DESCRIPTION:
Model: Auto Slack Adjuster – Drive Axle
Vehicles: Freightliner, Mack, Volvo, Peterbilt, Autocar, Hendrickson, and other heavy-duty truck platforms
• Type: Automatic Slack Adjuster
• Spline Count: 28
• Arm Length: 5.5"
• Camshaft Diameter: 1.5"
• Axle Position: Drive Axle
• Brake Type: Drum Brake
• Construction: High-strength forged steel with corrosion-resistant coating
• Functionality: Maintains consistent brake adjustment automatically
• Performance: Engineered to OE standards for optimal braking response and durability
Applications:
Designed for heavy-duty drive axle drum brake systems requiring precise and automatic brake adjustment. Commonly used on vocational trucks, highway tractors, and fleet service vehicles across OEM platforms. Direct replacement for worn OE units with no core required.
CROSS-REFERENCE(S):
00-20105, 01R801072E, 03-05136, 03-05229, 03637/16167, 05-463, 10000033, 101261, 101262, 101769, 102117, 102118, 10480801, 106204, 106207, 106402, 107108, 107143, 107996, 1090265, 1090343, 1092019, 1140P, 138.281, 138.2810, 17A23127, 17A2314355, 20GUNAS1140, 20SIRSA1140, 25-QD-261-P2, 25QD51, 3398-AS1140, 3515717, 363716167, 3918360, 3948150, 40010156, 40010156M1D, 40501502, 5033, 51140P, 65185, 681-420-1949, 681-420-2049, 681-420-2149, 681-420-5638, 76401-0110, 76401-3462, 76401-3502, 76401-3508, 76401-3527, 8060859, 8084133, 85100221, A-14767, ACA-0076A700, AS-1140, AS1012, AS1020, AS1040, AS1140, AS1149, BA670GRP, BHS-A670, CB22102, CB42100, CP5033, CS-52320, CS-56007, CS56040, DS56040, E-11415, E-11416, E168, E258, E6994, E15024, FLTAS1140, GUAS1140, GUN AS1040, GUN AS1140, GUN AS1149, GUN-AS1040, GUN-AS1140, GUNAS1040, GUR-AS1140, M16WR1334, M3370, OTR-51140, OTR51140, PL-1140, R21097003, R802423, R802430, R802431, R802432, R802433, R802440, R802441, R802442, R802443, R802444, R802445, R802446, R802447, R802448, R802449, RB-1140, S-A670, S213981, SA10202, SA10802, SA1140, SA670, TDA R801079, TDAR801079, TF AS1140, VIPAS1140, AS1140C8T, MPGS-A670, ATXA670, AS1140-RC, GTPAS1140, ATPA670, PPPAS1140, A670SS, GTSA670, PSAS1140A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Confirm spline count and arm length match original equipment prior to installation
✔ Apply anti-seize compound to camshaft splines during install
✔ Tighten mounting fasteners to OE torque specs
✔ Verify proper brake function post-installation
✔ Do not reuse hardware from removed unit
✔ Replace both slack adjusters on the same axle simultaneously for optimal performance
WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?
• Canadian-owned since 1985• Trusted by fleets, mechanics, and B2B partners across North America
• Fast, Reliable Shipping Across North America
• Competitive pricing with Core Return Refunds
• Price Match Guarantee | Find a better price? We'll beat the difference by 10%!
Warranty Information
