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Part Numbers & Descriptions

Automatic Slack Adjusters with Auto Check

STEMCO Crewson Part Number Description
MK31100S Straight Arm ABA, 1 1/2" x 10 spline, 5.5"
MK31200S Straight Arm ABA, 1 1/2" x 10 spline, 5.5"
MK34100S Straight Arm ABA, 1 1/4" x 10 spline, 5.5"
MK34106S Straight Arm ABA, 1 1/4" x 10 spline, 6"
MK34200S Straight Arm ABA, 1 1/4" x 10 spline, 5.5"
MK35100S Straight Arm ABA, 1 1/4" x 24 spline, 5.5"
MK35200S Straight Arm ABA, 1 1/4" x 24 spline, 5.5"
MK41100S Straight Arm ABA, 1 1/2" x 10 spline, 5.5"
MK41106S Straight Arm ABA, 1 1/2" x 10 spline, 6.0"
MK41700S Straight Arm ABA, 1 1/2" x 10 spline, 5.5"
MK41706S Straight Arm ABA, 1 1/2" x 10 spline, 6.0"
MK42100S Straight Arm ABA, 1 1/2" x 28 spline, 5.5"
MK42101S Straight Arm ABA, 1 1/2" x 28 spline, 6.5"
MK42106S Straight Arm ABA, 1 1/2" x 28 spline, 6.0"
MK42700S Straight Arm ABA, 1 1/2" x 28 spline, 5.5"
MK42706S Straight Arm ABA, 1 1/2" x 28 spline, 6.0"
MK43100S Straight Arm ABA, 1 5/8" x 37 spline, 5.5"
MK43106S Straight Arm ABA, 1 5/8" x 37 spline, 6.0"
MK44100S Straight Arm ABA, 1 1/4" x 10 spline, 5.5"
MK71100S Straight Arm ABA, 1 1/2" x 10 spline, 5.5"
MK71106S Straight Arm ABA, 1 1/2" x 10 spline, 6.0"
MK72100S Straight Arm ABA, 1 1/2" x 28 spline, 5.5"
MK72106S Straight Arm ABA, 1 1/2" x 28 spline, 6.0"
MK72700S Straight Arm ABA, 1 1/2" x 28 spline, 5.5"
MK73106S Straight Arm ABA, 1 5/8" x 37 spline, 6.0"

 

Automatic Slack Adjusters without Auto Check

 

STEMCO Crewson Part Number DESCRIPTION
MK21104S Long Arm ABA, 1 1/2" x 10 spline, 5.0"/6.0"/7.0"
MK21152S Curved Arm ABA, 1 1/2" x 10 spline, 5.5"/6.5"
MK22153S Curved Arm ABA, 1 1/2" x 28 spline, 5.0"/6.0"

 

Manual Slack Adjusters

 

STEMCO Crewson Part Number DESCRIPTION
MM1200S Manual Straight Arm, 1 1/2" x 10 spline, 5.0"/6.0"/7.0"
MM1202S Manual Straight Arm, 1 1/2" x 10 spline, 5.5"/6.5"
MM1296S Manual Curved Arm, 1 1/2" x 10 spline, 6.0"
MM2200S Manual Straight Arm, 1 1/2" x 28 spline, 5.0"/6.0"/7.0"
MM2202S Manual Straight Arm, 1 1/2" x 28 spline, 5.5"/6.5"
MM2204S Manual Straight Arm, 1 1/2" x 28 spline, 5.0"/6.0"
MM2296S Manual Curved Arm, 1 1/2" x 28 spline, 6.0"
MM3200S Manual Straight Arm, 1 5/8" x 37 spline, 5.0"/6.0"/7.0"
MM3202S Manual Straight Arm, 1 5/8" x 37 spline, 5.5"/6.5"
MM3206S Manual Straight Arm, 1 5/8" x 37 spline, 6.0"
MM4200S Manual Straight Arm, 1 1/4" x 10 spline, 5.0"/6.0"/7.0"
MM4201S Manual Straight Arm, 1 1/4" x 10 spline, 4.5"/5.5"
MM4202S Manual Straight Arm, 1 1/4" x 10 spline, 5.5"/6.5"
MM4204S Manual Straight Arm, 1 1/4" x 10 spline, 5.0"/6.0"
MM5201S Manual Straight Arm, 1 1/4" x 24 spline, 4.5"/5.5"
MM5204S Manual Straight Arm, 1 1/4" x 24 spline, 5.0"/6.0"

 

Components

 

STEMCO Crewson Part Number DESCRIPTION
MC8056KTS Pin Kit for Automatic Brake Adjuster without Auto-Check
MC8056KTAS Pin Kit for Automatic Brake Adjuster with Auto-Check
MC8410KTS ABA, Clevis1/2"-20 standard with pin kit
MC8410KTAS ABA, Clevis1/2"-20 standard with pin kit
MC8415KTS ABA, Clevis1/2"-20 offset with pin kit
MC8415KTAS ABA, Clevis1/2"-20 offset with pin kit
MC8420KTS ABA, Clevis5/8"-18 standard with pin kit
MC8420KTAS ABA, Clevis5/8"-18 standard with pin kit
MC8425KTS ABA, Clevis5/8"-18 offset with pin kit
MC8425KTAS ABA, Clevis5/8"-18 offset with pin kit
MC8480KTS ABA, Clevis5/8"-18 extended with pin kit
MC8480KTAS ABA, Clevis5/8"-18 extended with pin kit
MC8500S Pointer for Automatic Brake Adjuster with Auto-Check