$268.00
Selected by industry leaders worldwide for proven quality.
12 months coverage to guarantee long-term performance and reliability.
Guaranteed shipping for all in-stock items within 24 hours.
Bespoke solutions tailored exactly to your project's technical specifications.
| Part Number: | 178474 | Type: | Turbocharger |
| Model: | | Previous Version: | |
| Engine Model: | Application: | | |
| Condition: | Brand New | Material: | Alloy / K18 Steel |
| Fuel Type: | Diesel | Purpose: | For replace/repair |
| Warranty: | 12 Months | Standard: | OEM Standard |
| Cooling: | Payment Terms: | L/C, T/T, Western Union Paypal | |
| Package: | Neutral | MOQ: | 1/pcs |
The 178474 S200AG Turbocharger is a high-quality aftermarket replacement engineered for Caterpillar E325C excavators powered by the CAT 3126B diesel engine. Designed to restore factory-level turbocharging performance, this replacement turbocharger provides excellent boost pressure, faster engine response, improved combustion efficiency, and dependable durability in demanding construction environments.
Turbochargers operate under extremely high temperatures and rotational speeds. Over time, bearing wear, shaft movement, oil contamination, excessive exhaust temperatures, or foreign object damage can significantly reduce turbocharger efficiency. Replacing a worn turbocharger with a precision-built 178474 S200AG helps restore engine power, reduce exhaust smoke, improve fuel efficiency, and maintain overall machine productivity.
Manufactured using premium turbine wheels, precision-machined compressor components, heat-resistant bearing systems, and dynamically balanced rotating assemblies, this aftermarket turbocharger is designed to meet or exceed OEM performance standards while offering a cost-effective replacement solution for equipment owners, distributors, repair workshops, and heavy equipment service providers worldwide.
Whether your excavator operates in construction projects, mining operations, road building, quarry sites, forestry, or infrastructure development, the 178474 S200AG turbocharger delivers the reliability and performance required for continuous heavy-duty operation.
| Item | Specification |
|---|---|
| Product Name | Turbocharger |
| Turbo Model | S200AG |
| Part Number | 178474 |
| Engine | CAT 3126B |
| Equipment | Caterpillar E325C Excavator |
| Cooling Type | Oil Cooled |
| Fuel Type | Diesel |
| Condition | Brand New |
| Quality | Premium Aftermarket Replacement |
| Rotor Assembly | High-Speed Precision Balanced |
| Bearing System | Heavy-Duty Journal Bearing |
| Material | High-Temperature Alloy Steel & Aluminum |
| Warranty | 12 Months |
| Packaging | Export Standard Protective Packaging |
| Origin | China |
The 178474 S200AG turbocharger is manufactured using precision CNC machining and carefully selected materials capable of withstanding demanding operating conditions. Every rotating assembly undergoes dynamic balancing to minimize vibration, reduce bearing wear, and ensure stable performance at high rotational speeds.
Replacing a worn turbocharger restores proper intake air pressure, allowing the CAT 3126B engine to achieve optimal combustion efficiency. This improves engine output while reducing excessive fuel consumption and black exhaust smoke.
The turbine housing and rotating components are manufactured using heat-resistant alloys designed to withstand continuous high exhaust gas temperatures generated during heavy excavation and earthmoving applications.
Premium journal bearings, durable thrust components, and precision shaft assemblies help extend service life while maintaining consistent turbocharger performance under demanding workloads.
Manufactured according to OEM dimensions, the 178474 S200AG turbocharger is designed for direct replacement installation without extensive modifications, minimizing machine downtime.
The 178474 S200AG turbocharger is suitable for selected Caterpillar equipment equipped with the CAT 3126B diesel engine.
Before ordering, customers are encouraged to verify the turbocharger model, engine model, OEM part number, and compressor/turbine housing specifications to ensure complete compatibility.
A failing turbocharger can significantly affect engine performance and increase operating costs. Replacing the turbocharger promptly provides several benefits:
To maximize turbocharger service life, professional installation and proper maintenance are strongly recommended.
Installation Recommendations
Maintenance Tips
Following these maintenance practices helps maximize turbocharger lifespan and maintain optimal engine performance.
Each 178474 S200AG turbocharger undergoes strict quality inspections throughout the manufacturing process, including:
These quality control procedures ensure every turbocharger delivers reliable performance and consistent product quality.
As a professional turbocharger manufacturer and supplier, we support customers worldwide with flexible OEM and aftermarket solutions.
We offer:
Our products are supplied to importers, construction equipment distributors, engine rebuilders, repair workshops, heavy equipment dealers, and industrial machinery service companies across Europe, North America, South America, the Middle East, Southeast Asia, and Africa.
Whether you require a single replacement unit or large-volume purchasing, we can provide competitive pricing, reliable quality, and responsive customer service.
No. This is a premium aftermarket replacement manufactured to OEM specifications for reliable performance and fitment.
It is designed primarily for Caterpillar 3126B diesel engines used in compatible E325C excavators and related applications.
Yes. It is supplied as a complete turbocharger assembly ready for installation.
Yes. Every rotating assembly is precision dynamically balanced before shipment to ensure smooth high-speed operation.
Yes. A 12-month warranty is available against manufacturing defects under normal operating conditions.
Yes. We also supply CHRAs, compressor wheels, turbine wheels, bearing housings, repair kits, seal kits, shafts, back plates, and other turbocharger components.
Yes. OEM manufacturing, customized branding, laser marking, and private packaging services are available for distributors and wholesalers.
Please provide the turbocharger part number, engine model, machine model, and the nameplate information or photographs. Our technical team will help verify the correct replacement before shipment.
If you are looking for a dependable replacement for the 178474 S200AG Turbocharger used on Caterpillar E325C excavators with the CAT 3126B engine, our premium aftermarket solution offers excellent performance, reliable durability, and competitive pricing.
Contact us today for the latest quotation, wholesale pricing, OEM services, or technical support. We are committed to providing high-quality turbocharger solutions and fast worldwide delivery to keep your equipment operating at peak performance.
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We provide a wide range of turbocharger spare parts to support both remanufacturing and repairs. Our product lineup includes practically everything you might need. Here are some of the key parts we offer:
These spare parts cover most major turbocharger brands and models for commercial diesel engines as well as passenger vehicles. If you’re looking for something specific, just let us know the turbo model or the OEM part number, and we’ll quickly check if we have it available.
Making sure you get the right part is really important. The best way is to use the original equipment manufacturer (OEM) part number or your turbo’s model number as a reference when you order. Every turbocharger usually has an ID tag or an engraved number on it — if you give us that info, we can find the exact spare part you need.
Our sales engineers are also ready to help. If you let us know your engine model, the turbo’s model (or serial number), and maybe what problem you’re trying to fix or which component you’re replacing, we can cross-check and guide you to the right part. This way you’ll have a correct match and avoid any mix-ups.
We can also provide product catalogs or technical datasheets if you want to double-check the specifications yourself before buying. Just let us know, and we’ll get those to you.
Generally, we don’t have a strict minimum order for our standard parts — you can even order just one piece if that’s all you need. We know remanufacturing shops sometimes want to test a part’s quality first, so small sample orders are totally fine with us.
If you’re looking to buy in bulk, we can certainly discuss volume discounts. The only time we might have a minimum order is if it’s a very specialized or custom-made component, due to the production requirements. In those cases, we’d let you know upfront if any minimum applies.
In most situations, whether you need a single item or a large batch, we’re happy to accommodate. We pride ourselves on being flexible and building long-term relationships with our clients.
We offer a standard 12-month warranty on all our turbocharger spare parts. The clock starts from the date we ship them out, unless we’ve made a different agreement (for example, starting from the installation date in some cases). In short, if any part fails due to a manufacturing defect within those 12 months, it’s covered under our warranty.
If you do encounter a problem that you believe is our fault within the warranty period, just let us know. We’ll typically ask for some details about what happened (maybe a report or photos) so we can understand the issue. Once we’ve confirmed it’s a warranty case, we’ll send you a replacement part or offer you a full refund/credit for that item. We stand behind our products, so if there’s a genuine quality problem, we’ll make it right as quickly as possible.
Our warranty covers failures that result from defects in our parts (materials or workmanship) under normal use. For example, if a compressor wheel had a casting flaw or a cartridge assembly wasn’t balanced properly at the factory and it causes a premature failure, that’s on us and would be covered.
However, there are some situations that are not covered by our warranty. Here are the main exclusions:
In essence, if a part fails because it had a defect, it’s covered. But if it fails due to misuse, external factors, or normal wear, it’s not. If you ever need to claim warranty, we’ll review what happened (often via photos or a failure report) and may examine the part. That ensures we handle claims fairly and transparently.
We will arrange for a specialist to contact you immediately.
Download our catalog to see all products and data sheets, the catalog sheet will be sent to your email address.
