Basic Info.
| Parts no. | 3375252 | Material | steel |
| Type | TANK GP-COOLANT | Parts Type | Engine Parts |
| Compatibility | Caterpillar | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed：2026/02/27
- Manufacturer：Diron Parts
Product Description
- Part Number: 3375252
- Part Type：TANK GP-COOLANT
- Description: 3375252 TANK GP-COOLANT for Caterpillar
The 337-5252 is a complete aftermarket coolant tank group (expansion / surge tank assembly) engineered for Caterpillar® medium and large machines. This ready-to-install unit maintains proper coolant level, allows for thermal expansion, and provides reliable degassing and pressure regulation in the cooling system, ensuring consistent engine temperature control in demanding construction, mining, and industrial applications.
Key Features & Benefits
- Full assembly including tank, cap, sight glass, mounting brackets, and fittings
- Precision-formed filler neck and pressure cap sealing surface for leak-free operation
- Integrated sight glass for easy visual coolant level monitoring
- Reinforced mounting points designed to withstand vibration and thermal cycling
- Pressure-tested for integrity under operating conditions
- Direct bolt-on fit with factory-matched hose connections and bracket pattern
Common Applications (Caterpillar® Compatibility)
- Wheel Loaders: – 950H, 962H, 966H, 972H – 980H, 980K
- Track-Type Tractors: – D6N, D6T, D7E
- Excavators: – 336D, 336D2, 349D
- Typical function: – Engine coolant expansion / surge tank (part of primary cooling system)
Technical Specifications
- Part Number Reference: 337-5252
- Type: Coolant tank group (expansion tank assembly)
- Capacity: Matches factory specification
- Pressure Cap Rating: Factory-matched (typically 100–150 kPa)
- Mounting: Bolt-on brackets with vibration isolators
- Weight: ≈ 8–10 kg (18–22 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.
