Part Name: Crankshaft 1253005
Part Number: 1253005
Basic Info.
| Parts no. | 1253005 | Material | steel |
| Type | Crankshaft | Parts Type | Engine parts |
| Model | Caterpillar3066 | Transport Package | Wooden Box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model:1253005
- Date First Listed: 2026/04/08
- Manufacturer: Diron Parts
Product Description
- Part Number:1253005
- Part Type: Crankshaft
- Compatible Equipment: Caterpillar 3066

The 125-3005 is a heavy-duty aftermarket crankshaft designed for Caterpillar® 3066 diesel engines. This core rotating component converts the reciprocating motion of the pistons into rotational power, delivering smooth and reliable performance in demanding construction and industrial applications.
Key Features & Benefits
- Precision machined journals and fillets for smooth rotation and long service life
- Strong design engineered to withstand high combustion forces and continuous heavy loading
- Excellent balance and straightness for reduced vibration
- Direct fit into factory 3066 engine blocks
- 100 % inspected for dimensional accuracy and runout
- Proven reliability in high-hour engine rebuilds
Common Applications (Caterpillar® Compatibility)
- Engine: 3066
- Typical Machines: – Excavators: 311C, 312C, 314C, 318C, 320C – Wheel Loaders: 924G, 928G, 930G – Backhoe Loaders: 416D, 420D, 430D – Forklifts and industrial power units equipped with 3066 engines
Technical Specifications
- Part Number Reference: 125-3005
- Type: Engine crankshaft (6-cylinder)
- Main Journal Diameter: Matches factory specification
- Rod Journal Diameter: Matches factory specification
- Weight: ≈ 65–75 kg (143–165 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.







