Description
FP1136 - AUTO SLACK ADJUSTER - 10 SPLINE - 1 1/4" - 5 1/2" (STEER AXLE)
PART NUMBER(S):
Fleet Products: FP1136 | OE: A25-3275-X-1142, 6814205538, 6814205539 | Automann: 138.101, 138.1010
DESCRIPTION:
Model: Auto Slack Adjuster – Steer Axle
Vehicles: Suitable for various heavy-duty trucks with steer axle drum brakes
• Spline Size/Teeth: 10 spline
• Camshaft Diameter: 1 1/4"
• Arm Length: 5.5" (fixed, center-to-center)
• Mount Type: Straight arm (0° body angle)
• Mounting Hole Center Distance: 5.5"
• Clevis Thread Size: 1/2"-20 UNF-2B (straight collar lock)
• Brake Chamber Compatibility: Type 16 (T-16)
• Brake Drum Size: 15"
• Performance/Technology: Automatic, clearance-sensing
• Material: Forged alloy steel, rust-resistant
• Piston Color: Black (as per Meritor reference)
• Lubrication: Optional zerk fitting (some models are sealed)
• System Integrity: Replaces A25-3275-X-1142; includes installation template & clevis; ISO 9001:2008 certified
• Maximum Torque: <15 ft-lbs
• Body Angle: 0°
Applications:
Engineered for heavy-duty steer axle applications requiring 10-spline, 1.25" cam, 5.5" arm length automatic slack adjusters in drum brake systems. Ideal for Freightliner, Volvo, Peterbilt, Mack, and other OEM platforms using equivalent geometries and torque profiles.
CROSS-REFERENCE(S):
0201736, 0202245, 0305136, 05570, 101453, 101454, 101539, 101540, 106197, 106198, 106203, 106206, 106208, 106209, 107104, 107107, 107113, 107114, 107116, 107117, 107177, 107263, 1136, 138.101, 138.1010, 289304, 289305, 289306, 289307, 3513968, 3936094, 3947848, 40010001, 40010013, 40010013M1D, 40010072, 40910114, 40910115, 40910128, 40910163, 40910172, 40910224, 40910249, 40910250, 40910255, 40910325, 40910326, 40910388, 40910391, 40910495, 5036, 51136P, 52513, 5396-CS52330, 65163, 65164, 6814205538, 6814205539, 76401-0111, 76401-3457, 76401-3501, 76401-3507, 8060853, 808121, 808122, 808123, 808689, 808690, 808693, 808695, 809774, 809775, 810729, 812642, 815795, 815796, 815797, 815814, 815815, 815816, 85100217, 974296, A113275H1152S, A113275N768S, A25-3275-X-1142, AS1005, AS1036, AS1136, AS115, AS1152, AS1153, CB24000, CB24100, CB24102, CB24300, CB34200, C552330, CS-52330, CS-56013, CS56013, CS56036, E128K, E15020, E325K, E6900, E6901, E6906, E6907, E6987, E6988, GUN AS1136, GUNAS1036, GUR-AS-1136, KN48031, KN52250, KN52251, KN52252, KN52253, KN52254, M3363, NAR801001, PSAS-1136, R801001, R801004, R801005, R801006, R802020, R802023, R802030, R802031, R802032, R802033, R802040, R802041, R802042, R802043, RF25001296, S-C299, SA00804, SA02203, SA02701, SA06602, SA08702, SA10002, SA11402, SAS1051, SAS1136, SC299, TF AS-1136, TDAR801001, VIPAS-1136, ZBRAS1136A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Always install per OEM and manufacturer instructions to ensure proper brake function and safety
✔ Use only compatible clevis and pin sizes (1/2" pin standard)
✔ Ensure the arm is mounted straight with no offset, and that zerk fitting is accessible if lubrication is required
✔ Torque specifications and adjustment procedures must be followed as per OEM documentation
✔ Failure to install or adjust properly may result in brake imbalance or functional failure
✔ Inspect periodically for wear, proper adjustment, and lubrication
✔ Verify automatic adjustment mechanism functions during inspection; improper function can compromise safety
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Warranty Information
