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Thermo King Genuine OEM TriPac APU Structural Mounting Bolt — 557393 (Pack of 5)


Sale price $19.99 Regular price $29.99
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Description

Secure your auxiliary power unit's foundational assemblies with the Thermo King Genuine OEM TriPac APU Structural Mounting Bolt (Part 557393 / 55-7393). Available as a convenient pack of 5, these high-tensile factory fasteners are engineered specifically to lock down structural frame housings, lower pan guards, panel brackets, and mechanical mount interfaces on TriPac systems. Forged from high-grade structural steel, they are explicitly designed to withstand continuous over-the-road structural stresses, heavy frame torques, and unrelenting sleeper-berth chassis vibrations. Swapping out stretched, cross-threaded, or heavily corroded hardware with these authentic OEM bolts ensures your auxiliary climate engine stays rock-solid, protecting surrounding truck components and keeping your cabin cozy during mandatory driver downtime.

⭐ Key Features & Benefits
  • Genuine OEM Structural Spec: Engineered to match Thermo King's exact high-tensile metallurgical shear ratings and precise thread depths, outclassing generic hardware stores.
  • Pack of 5 Fleet Budget Bundle: Provides a complete mounting array or a reliable set of mechanical backups to keep inside driver side-boxes or shop tool carts.
  • Anti-Vibration Engineering: Forged with specialized high-fatigue cores designed to hold firm torque parameters under constant APU diesel engine runtime profiles.
  • Heavy-Duty Coated Finish: Protected by an industrial-grade layer that aggressively fights off corrosive slush, road salt, moisture, and engine oil scaling.
  • Eliminates Panel and Mount Play: Delivers tight, uniform thread mesh to eliminate structural panel rattling, frame shifting, and sudden bracket failures.

🔧 Uses / Applications
  • TriPac Unit Installation & Service: Serves as the primary heavy-duty mounting hardware for auxiliary power unit frame brackets, protective skins, and access doors.
  • APU Chassis Overhauls: Direct mechanical replacement for missing or worn exterior structural screws on over-the-road truck sleeper units.
  • Preventative Fleet Upgrades: Ideal multi-piece replacement kit for fleet body shops and fleet managers replacing fatigued fasteners during seasonal tune-ups.
  • Shop Parts Stocking: High-demand industrial fastener assortment optimized for mobile tractor repair trucks, fleet parts rooms, and independent commercial service hubs.

📊 Technical Specifications
Specification Detail
Part Type TriPac APU Structural Frame / Housing Mounting Bolt (5-Pack)
Position Outer Enclosure Chassis / Subframe Bracket Interface
Part Number 557393 / 55-7393 / 557393TKA
Material Hardened High-Tensile Structural Grade Steel Alloy
Fitment Direct-Fit OEM Thermo King TriPac & TriPac Evolution APU Platforms
Condition Brand New (Genuine OEM Overstock / Bulk Pack Surplus)
Installation Threaded Bolt-On Direct Mechanical Replacement

🔄 Cross-Reference / Interchange Table
Manufacturer Equivalent Part Number
OEM (Thermo King) 557393, 55-7393, TK557393, 557393TKA
Associated Hardware 55-5292 (U-Bolt Nut Line), 51-3696 (Panel Screw Matrix)
Hardware Classification Structural Components / Gaskets & Hardwares / Screws & Bolts
Additional Notes Pack features five (5) matching structural bolts. Always clean receiver nut clips or framework weld-nuts of old rust scaling prior to assembly, and apply standard factory torque specifications.

Disclosure Policy

This product was acquired by Freeman Liquidators from a sale of merchandise subject to a commercial insurance loss. Freeman Liquidators is a secondary seller of products, is not affiliated with or sponsored by the manufacturer of the products and is not a manufacturer authorized seller of the products. Sale of this product by Freeman Liquidators is not subject to the policies of the manufacturer. Any warranty offered by the manufacturer is not available to you as the purchaser.

All products are NEVER USED but external packaging will have damage. Some items may be placed into other packaging to ensure safe shipping. All items are opened for inspection prior to shipment to ensure the best quality of products. Freeman Liquidators guarantees your satisfaction. If you are not completely satisfied with a purchased product, within 30 days from the date of purchase, return the product in its packaging and Freeman Liquidators will fully refund your money.

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Thermo King Genuine OEM TriPac APU Structural Mounting Bolt — 557393 (Pack of 5)

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