Description
FP1141 - AUTO SLACK ADJUSTER - 28 SPLINE - 1 1/2" - 6" (DRIVE AXLE)
PART NUMBER(S):
Fleet Products: FP1141 | OE: A41-3275-Z-1144, AS1141, E6904 | Automann: 138.2830
DESCRIPTION:
Model: Automatic Slack Adjuster
Vehicles: Compatible with various heavy-duty commercial vehicles and trailers with drive axle drum brake systems
• Spline Count: 28
• Camshaft Diameter: 1 1/2"
• Arm Length: 6" (center-to-center, fixed)
• Mount Type: Straight Arm
• Mounting Hole Center Distance: 6"
• Clevis Type/Thread Size: 1/2" pin hole, straight
• Mounting Offset: 0° (no offset)
• Piston Color: Yellow (as per Meritor A41-3275-Z-1144)
• Brake Type Compatibility: Drum Brake
• System Integrity/Technology: Automatic (self-adjusting), clearance-sensing
• Material: Forged steel
• Lubrication: Zerk fitting (optional periodic greasing)
• Body Angle: 0°
• Weight: ~8 lbs
• Includes Installation Template
• Clevis Assembly Included
Applications:
Designed for drive axle drum brake systems requiring automatic slack adjusters with 28 splines and 1 1/2" cam diameter. Used widely across OE and aftermarket heavy-duty truck applications. Clevis and install kit included for streamlined replacement and maintenance.
CROSS-REFERENCE(S):
E6904, E6942, R802069, R801071, R801074, R801075, R801087, R802481, R802482, R802483, R802486, R802487, R802490, R802491, 101628, 102113, 102114, 106201, 106929, 107101, 107127, 289312, 289313, 289933, 289934, 65175, 65176, 2300, CB22006, CB22103, 52529, 808113, 808126, 808137, 808142, 808685, 808746, 809614, 810601, 810602, 813639, 813649, 815787, 815792, 815806, 815811, E070K, E146K, E149K, E167K, E234K, E235K, E241K, E6918, E6925, E6943, E6993, AS1041, E9HT2308B, E9HT2314AA, F2HS2308DA, F8HT2314BA, GUNAS1141, AS1001, ASA10203, SA00502, 40010067, 40010140, 40010144, 40910070, 40910093, 40910125, 40910146, 40910149, 40910167, 40910178, 40910225, 40910241, 40910288, 40910314, 40910343, 40910360, 40910397, 40910404, 40910405, 40910443, 40910457, 40910529, 40910552, 40910561, 40910566, 40910579, 40910615, 40910678, 40910732, 40910742, CS56041, CS56004, KN44051, KN52210, KN52211, KN52212, KN52213, KN52214, A103275N716S, A113275N716S, A163275B600S, A163275N716S, 764013509, 00-20115, AS1141, AS-1141, CB22104, CB42106, AS1166, CP5034, AS1150, 3398AS1141, PROSA1141, GUAS1141, MK22103S, A-14768, BHS-B889, E11402, FLTAS1141, A881141, 107994, 05-562, 05-462, 42521, 40501501, 4017A23665, 17A2314360, 1191037, 10600361, 10600055, 10000031, S-B889, AS1141C8T, 5462, MPGS-B889, ATXB889, AS1141-RC, ATPB889, B889SS, VIPAS1141, AS1141HTP, GTSB889, PSAS1141, TFAS1141, 25QD415, 25-QD-354, E15025, E-11421, CS-52321, KN-52210, 5034, M16WR1332, 25QD51P3, 1090340, 3947849, 8060858, 8084131, 85100222, 3515064, 51141P, 1141P, 76401-0100, 76401-3509, GUNAS1041, GUR-AS1141, GURAS1141, M3368, OTR51141, SA10203, SA1141, SB889A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Install strictly according to OEM torque specs and procedures
✔ Use correct clevis with 1/2" pin—ensure proper pin engagement
✔ Arm must be aligned straight and zerk fitting accessible
✔ Lubricate if required; inspect during routine brake checks
✔ Confirm initial adjustment and periodically check auto-adjuster performance
✔ Brake imbalance or failure may occur from incorrect install or mismatch
✔ Suitable for drive axle drum brake systems only—do not use on steer or trailer axles unless verified
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