
Part Name: Piston Body 3780509
Part Number: 3780509
Basic Info.
art no. | 3780509 | Material | steel |
Type | Piston Body | Part Type | Engineering machinery parts |
Compatibility | Caterpillar 3406C | Transport Package | Wooden box |
Trademark | DIRON | Origin | Luoyang City |
HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed:2025/05/30
- Manufacturer:Diron Parts
Product Description
- Part Type:Piston
- Description: Caterpillar 3406C


Product Introduction: Piston Body 3780509 for Caterpillar Equipment
Overview
The Piston Body 3780509 is a precision-engineered component designed for Caterpillar equipment, specifically used to transfer combustion energy to the connecting rod in the engine’s cylinder, ensuring efficient power delivery. This piston body is critical for maintaining engine performance in heavy-duty applications such as wheel loaders, motor graders, and dozers. Available as a new aftermarket or genuine OEM part, it provides a reliable and cost-effective solution for engine maintenance. The user’s query for 3780509, following requests for Caterpillar components (e.g., 4W7188 oil cooler, 504680 crankshaft), aligns with a focus on Caterpillar engine parts, particularly for 3406 series engines.
Key Features
- Material: Constructed from high-grade aluminum alloy, offering a balance of lightweight design, durability, and heat resistance to withstand extreme combustion pressures and temperatures. Features a robust skirt and crown design for enhanced strength.
- Design: Precision-machined to OEM specifications, featuring a standard-size piston body with a 14.5:1 compression ratio and 9-degree design, optimized for Caterpillar 3406 series engines. Includes grooves for piston rings and a bore for the wrist pin (pin not included). Supplied with retaining clips for secure installation.
- Compatibility: Compatible with Caterpillar equipment and engines, specifically:
- Engines: 3406, 3406B, 3406C.
- Equipment:
- Dimensions: Weight of approximately 6 lbs (2.7 kg). Specific bore and stroke align with the 3406 engine (5.4 in bore, 6.5 in stroke).
- Quality Assurance: Manufactured to meet or exceed OEM specifications, with magnaflux testing to ensure structural integrity. Produced in ISO 9001-certified facilities.
Benefits
- Enhanced Durability: Aluminum alloy construction ensures resistance to thermal stress and wear, extending service life in high-load applications like the 3406 engine in 980G wheel loaders.
- Reliable Performance: Precision design ensures optimal combustion efficiency, delivering approximately 300-400 hp for 3406 engines, enhancing machine performance.
- Ease of Installation: Direct-fit design with included clips ensures straightforward installation, minimizing downtime during engine rebuilds.
Applications
The Piston Body 3780509 is designed for use in Caterpillar equipment, specifically suited for:
- Wheel Loaders: 980C, 980F, 980G, for material handling and loading.
- Motor Graders: 16G, for road construction and grading.
- Track-Type Tractors: D8N, for earthmoving and dozing, complementing the user’s D6E focus (e.g., 504680).
- Industries: Construction, mining, and material handling, where 3406-powered equipment operates in high-load conditions.
Technical Specifications
Weight: 6 lbs (2.7 kg).
Part Number: 3780509 (cross-referenced as 378-0509, CA3780509, 8N1606, 9Y4004, 1W9372, 2900017, 20R1115, 20R1116, and others).
Unit of Measure: Each.
Condition: New aftermarket or OEM.
Note: While this description provides general information, specific details such as size, weight and exact material may vary by manufacturer and specific application. To obtain the most accurate and up-to-date information, it is recommended to consult a qualified parts supplier such as DIRON PARTS.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.








- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.


- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.







