Part Name: Fan Drive AS 3219994
Part Number: 3219994
Basic Info.
| Parts no. | 3219994 | Material | steel |
| Type | Fan Drive AS | Manufacturer | Aftermarket, replacement and not original CAT |
| Compatibility | Caterpillar | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
*We are not an authorized dealer for CATERPILLAR, and we don't represent it. Our catalog contains replacement parts manufactured with high quality standards but not Original Equipment from the Manufacturer. We use original product codes, photos or schemas only for reference purposes. The image of the product is provided as a reference and may differ in appearance from the ordered product. Use the original part number to find the parts or replacements you need.
Product Details
- Item Model：3219994
- Date First Listed：2025/12/15
- Manufacturer：Diron Parts
Product Description
- Part Number：3219994
- Part Type: CAMSHAFT
- Description: Replacement Parts Fan Drive AS C7.1 3219994 for Caterpillar, New
The 321-9994 is a premium aftermarket viscous fan drive assembly designed for Caterpillar® C7.1 engines (Tier 4 Interim / Stage IIIB & Tier 4 Final configurations). This electronically controlled unit automatically modulates fan speed based on coolant temperature, charge-air temperature, and ECU signals, optimizing engine cooling while minimizing parasitic power loss, reducing fuel consumption, and lowering noise levels in variable-load applications.
Key Features & Benefits
- All-new construction with high-viscosity silicone fluid for precise torque modulation
- Bi-metallic thermostatic coil combined with PWM solenoid valve for rapid, accurate engagement
- Heavy-duty billet aluminum housing and hardened steel hub for extreme durability
- Factory pre-filled and calibrated – no field adjustments needed
- High-temperature Viton seals and sealed bearings rated –40 °C to +120 °C
- Integrated thermal and electrical protection circuits
- Full fan speed range from 20 % (disengaged) to 100 % (fully engaged)
Common Applications (Caterpillar® Compatibility)
- Engine: C7.1 (all machine, industrial, and marine auxiliary arrangements)
- Typical Machines: – Excavators: 320F, 323F, 326F, 330F – Wheel Loaders: 926M, 930M, 938M, 950M, 962M – Track-Type Tractors: D6K2, D6N – Backhoe Loaders: 420F2, 430F2 – Telehandlers, compactors, and generator sets
Technical Specifications
- Part Number Reference: 321-9994
- Fan Pilot Diameter: 203 mm (8 in)
- Overall Diameter: ≈ 260 mm
- Rotation: Clockwise (viewed from front)
- Control Voltage: 24 VDC
- Current Draw: ≤ 1.2 A
- Engagement Range: 82–92 °C (coolant temperature calibrated)
- Weight: ≈ 9.8 kg (21.6 lb)
Important Note:
- We only provide replacement products intended for aftermarket use in the Caterpillar machinery listed above. The brand name Caterpillar is used solely as reference information to indicate compatibility and does not imply that our products are 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.
