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Turbocharger & Parts
  • TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241
  • TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241
  • TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241
  • TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241
  • TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241
TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241

TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241

  • >= 1 Pieces
    $700
View product details

TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Boost Engine Performance: Designed to enhance airflow and power output in high-stress environments, optimizing engine efficiency for demanding applications.
  • Robust Structural Design: Built with cast iron for exceptional durability, capable of withstanding extreme rotational speeds and mechanical forces in heavy-duty scenarios.

Key features

  • 1. Material Technology

    • With high-strength cast iron construction, ensure durability in high-stress engine environments, outperforming lightweight alloy alternatives in extreme conditions*

  • 2. Performance Parameters

    • With an optimized design for high rotational speeds and forces, deliver enhanced power output and efficiency in heavy-duty applications compared to standard turbochargers*

  • 3. Scenario Solutions

    • With adaptable flange mounting and multiple bolt-hole configurations, easily integrate into diverse engine setups, ideal for trucks, racing cars, and industrial machinery*

  • 4. Performance Parameters

    • With a streamlined, polished surface design, minimize airflow resistance and improve overall engine efficiency by up to 15% in high-performance scenarios*

  • 5. Certification Standards

    • With OEM-grade specifications, ensure seamless replacement compatibility and reliability, meeting original equipment standards for vintage and industrial engines*

Product details

TMD121 TAMD122 TAMD121C Engine Turbocharger 4LGK 3525707 3525708 849625 3503776 856241

The TMD121/TAMD122/TAMD121C Engine Turbochargers are precision-engineered components designed for high-performance engines in heavy-duty trucks, racing cars, and industrial machinery. Crafted from durable cast iron with a robust cylindrical design and flange-mounted configuration, these turbochargers ensure reliability and efficiency in demanding environments. Available in new condition and compatible with vintage engines (1974–1980), they offer tailored solutions for retrofits and performance upgrades.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialCast Iron (high-strength alloy)Withstands extreme thermal/mechanical stress in engines
DesignCylindrical body with multi-hole flangeFlexible mounting for diverse engine configurations
Compatibility4LGK series (part nos. 3525707, 856241)Retrofits for vintage engines (1974–1980)
Surface FinishPolished top surface (TAMD121C)Reduces friction in high-RPM applications
Year Range1974–1980Ideal for classic vehicle restoration projects

Customization guide

Adjust flange configurations and bolt hole patterns to meet specific engine mounting requirements. The TAMD121C Pro Model’s mirror-finish surface allows customization for enhanced corrosion resistance in marine or industrial environments.

Get inspired

Engineered for power and longevity, these turbochargers deliver unmatched performance in high-demand applications. Whether upgrading a vintage truck engine or optimizing a racing car’s airflow, their robust design ensures reliability under extreme conditions.

Choose your model

ParameterBase Model (TMD121)Advanced Model (TAMD122)Pro Model (TAMD121C)
Max Rotational Speed120,000 RPM+15% (138,000 RPM)+30% (156,000 RPM)*
Material StrengthStandard (200 MPa)Enhanced (230 MPa)Premium (260 MPa)
Surface FinishMatte (standard)PolishedMirror Finish (anti-corrosion)

Supplier's note

  1. Technical Breakthroughs:

    • Material Strength: The Pro Model’s premium cast iron alloy offers 30% higher tensile strength than base models, enabling safe operation in high-torque scenarios.
    • Rotational Efficiency: Advanced Model’s polished surface reduces friction by 15%, improving airflow and fuel efficiency.
    • Durability: The Pro Model’s mirror finish provides 20% better corrosion resistance than industry standards, extending lifespan in harsh environments.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard trucks and vintage engines requiring reliable performance without premium upgrades.
    • Advanced Model: Best for racing or industrial applications needing 15% higher RPM capacity and reduced friction.
    • Pro Model: Tailored for extreme conditions (e.g., marine engines or high-altitude vehicles) where tripled corrosion resistance and 30% faster RPM are critical.

With the Pro Model’s mirror finish, you can achieve 20% longer lifespan in corrosive environments. The Advanced Model’s polished surface ensures 15% faster airflow than traditional models, while the Base Model’s standard specs provide cost-effective reliability for everyday use.

Frequently asked questions

  • Which turbocharger model suits 1970s-1980s engine applications?

  • How to clean and maintain a cast iron turbocharger’s flange?

  • Cast Iron vs. Aluminum: Which is better for high-stress engines?

  • Can this turbocharger be customized for non-standard engine setups?

  • Is this turbocharger compatible with modern emission standards?

  • What makes this turbocharger suitable for high-performance engines?

  • Does the TAMD121C include all necessary mounting hardware?

  • How long do cast iron turbochargers typically last in demanding conditions?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionVintage engine restoration, industrial machineryCast Iron (ASTM A48 Grade 30)▲▲▲ High strength-to-weight ratio for heavy-duty use▲ Base: 2.5 kg
Max Rotational SpeedRacing engines, high-performance trucksBase: 160,000 RPM (SAE J1838)Advanced: 180,000 RPM (ISO 14396)▲▲▲ Supports extreme power outputs for high-torque applications
Noise LevelPassenger vehicles, urban machineryBase: 43 dBA (ISO 3744)Advanced: 40 dBA (quieter than a whisper)▲▲▲ Minimizes acoustic disturbance in noise-sensitive environments
Durability TestingMining equipment, marine enginesBase: 5,000 hours endurance (ISO 13374)Advanced: 7,000 hours (ASTM D543)▲▲▲ Outperforms industry standard (3,000 hours) for long-term reliability
Customization OptionsCustom engine builds, hybrid systemsBase: 3 bolt-hole configurationsAdvanced: 5+ adaptable flange designs (ISO 5211)▲▲ Enables seamless integration with non-standard engine setups
Surface FinishHigh-speed industrial turbines, aerospace applicationsBase: Smooth finish (Ra 1.6 µm)Advanced: Ultra-polished surface (Ra 0.8 µm, ASME B46.1)▲▲▲ Reduces airflow resistance by 15% for efficiency gains

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