Product Description
FP47001 - MANUAL SLACK ADJUSTER - 10 SPLINE, 5", 6"
PART NUMBER(S):
Fleet Products: FP47001 | OE: 47001, KN47001, R822000 | Automann: E1580HD, 2032018
DESCRIPTION:
Model: Manual Slack Adjuster
Vehicles: Compatible with a wide range of heavy-duty trucks and trailers equipped with drum brake systems
• Spline Count: 10
• Spline Diameter: 1.5"
• Arm Length(s): 5", 6" (center-to-center)
• Mounting Style: Straight arm
• Mounting Hole Center Distance: 5" or 6"
• Body Angle: 0°
• Mounting Offset: 0" (non-offset design)
• Clevis Pin Size: 1/2"
• Brake Type: Drum Brake
• Chamber Compatibility: Suitable with Type 30 brake chambers
• Material: Forged steel
• Lubrication: Zerk fitting (greaseable or sealed variants)
• Performance Rating: Handles up to 26,000 in-lb input torque
• Technology: Manual adjustment; no core required
• Use Case: General manual slack for heavy-duty drive and trailer axles
• OEM Fitments: Designed to replace OE and aftermarket numbers across Freightliner, Mack, Volvo, Navistar, Toyota, and more
• Axle Position: Universal – steer, drive, and trailer
Applications:
Used on drum brake axles requiring a 10-spline, 1.5" cam, 5" or 6" straight-arm manual slack adjuster. Found in applications across Freightliner Cascadia/Columbia, Mack Granite/Pinnacle, Navistar ProStar/Lonestar, Volvo trucks, Toyota heavy-duty vehicles, and more. Applicable for all axle positions where specifications match.
CROSS-REFERENCE(S):
278323, 060-278323, A983275G501, R822000, R824000, 5-203, 065720, 224293, 278323N, 278707, 280754, 281089, 65720, M-435, B11214, E-612, 4236, GT-5700, GT-5800, KN47001, 212116, L-196, 745278323, 18267, 035125, 865426, 340544, AC32746, BW278323, E612, E-612BK, E612BK, E-612HD, E612HD, OTR47001, GT5700, GT5800, MSA105, L196, 745-278323, WAKN47001, BAN278323, BEN278323, BX278323, ZAC278323, PL-278323, PL278323, RB278323, 13MSST150101, S2010A, 278323BXW, AC-32746, 278010, 823000, R823000, E-203, M10WR119, 134.1041, AM1341041, 25QD336P3, HDX KN47001, TDA R824000, 8-2068, DAY-05203, EM49200, 49200, 2010, 2010A, 701187, 76401-0105, MM1200S, 30MSA105, 3502748, 3508556, 61576, M16WR100, M16WR105, ACA-0073, CB1200, DAY-05260, HAL-KN47001, HAS-4920-BEN, L196EC, M-434, MIRKN47001, MIR-KN-47001, S-9642, S9642, PCMBA10, VIPKN-47001, KN-47001-RC, GTS9642, PSKN-47001, GTPKN-47001, TF KN-47001, MPGS-9642, ATX9642, ATP9642, PPP2A034, 9642SS, KN-47001HTP, MIR-KN-47001, NSKN47001
A 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 service manuals (e.g., Haldex, Meritor, Gunite)
✔ Use thread-locking compound on splines to prevent loosening
✔ Torque bolts to OEM specifications (SAE J1461 Draft 4: 30,000 in-lb max input torque)
✔ Misalignment greater than 3° may cause premature wear
✔ Lubricate splines and clevis pins on installation
✔ Some variants require periodic greasing; others are sealed
✔ Do not use with disc brake systems or incompatible chambers (e.g., 24/36)
✔ Use only 1/2" clevis pin with correct clevis thread type
SOLD AS NEW
Brand new and ready to install, with OEM Grade Reliability
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, Call: 1-877-243-0442 | Email: sales@fleet-products.com
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