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Caterpillar 399-0171 Exhaust Gas Recirculation (EGR) Valve Kit

$799.99 $1,150.00
Shipping calculated at checkout.

Pickup currently unavailable at Freeman Liquidators Annex

Description

The genuine Cat 399-0171 Exhaust Gas Recirculation (EGR) Valve Kit is a complete set of critical components designed to govern emissions and enhance heavy engine combustion efficiency


. By redirecting a metered portion of spent exhaust gases back into the engine's combustion chamber, this valve kit successfully lowers peak combustion temperatures. This process drastically reduces harmful nitrogen oxide (NOx) emissions, ensuring your industrial machinery remains fully compliant with strict environmental standards. Additionally, installing this genuine factory kit optimizes the air-fuel mixture, resulting in sharper engine response, better fuel economy, and reduced internal engine knocking. [1, 2]
⭐ Key Features & Benefits
  • Advanced NOx Reduction — Efficiently channels exhaust gases to lower combustion chamber temperatures, ensuring environmental compliance on tight jobsites. [1]
  • Optimized Air-Fuel Mix — Delivers precise metering to fine-tune the internal air-to-fuel ratio, boosting overall engine performance and fuel savings. [1]
  • Complete System Hardware — Packaged as a comprehensive kit to give technicians the necessary matching seals, gaskets, or adapters required for a leak-free repair.
  • Prevents Engine Knocking — Keeps combustion metrics stable under heavy operational loads, actively shielding pistons and cylinders from pre-detonation stress. [1]
  • Genuine OEM Durability — Built to Caterpillar's exact engineering standards, outlasting generic aftermarket replacements under high-heat, high-vibration conditions.
🔧 Uses / Applications
  • Emissions System Overhauls — Replaces jammed, carbon-fouled, or failing factory EGR valves to clear check-engine codes and restore full engine power.
  • Heavy Fleet Compliance Maintenance — Upkeeps active earthmoving, material handling, or power generation equipment to pass mandatory environmental field inspections.
  • Combustion Temperature Control — Regulates critical internal thermal thresholds during prolonged, severe-duty machine cycles or high-ambient-heat operations.
  • Preventative Tier 4 Final Care — Installed during major engine service intervals to prevent poor fuel economy or exhaust blockages before they cause severe downtime.
📊 Technical Specifications
Specification Detail
Part Type Exhaust Gas Recirculation (EGR) Valve Kit
Position Engine Exhaust-to-Intake Manifold Junction
Part Number 399-0171 / 3990171
Material High-Grade Thermal Alloy / Corrosion Resistant Components
Fitment Caterpillar Tier 4 / NRS Equipped Diesel Engines
Condition Brand New (Surplus Stock)
Installation Direct-Fit Replacement Kit
🔄 Cross-Reference / Interchange Table
Manufacturer Equivalent Part Number
Caterpillar (OEM) 399-0171
Caterpillar (Alt) 3990171
Related Cat Groups Supports NOx Reduction Systems (NRS) alongside 579-9317 or similar cooling lines.
Additional Notes Always use the included premium seals during installation to prevent pressurized exhaust bypass leaks.

External packaging has been subjected to external smoke damage

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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Caterpillar 399-0171 Exhaust Gas Recirculation (EGR) Valve Kit

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