Part Name: Flange 3P6318
Part Number: 3P6318
Basic Info.
| Part no. | 3P6318 | Material | Bronze/Copper |
| Type | Flange | Weight | |
| Model | 307 307D 308E 307C 308D 307B 308C 307-A 307E 308E2 307E2 308E2 CR | Transport Package | Wooden Box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model:3P6318 Flange
- Date First Listed:2026/01/06
- Manufacturer:Diron Parts
Product Description
- Part Number:3P6318
- Part Type:Flange

The 3P-6318 is a heavy-duty aftermarket output flange designed for Caterpillar® torque converters and power-shift transmissions in medium and large wheel loaders, track-type tractors, and off-highway trucks. Forged from high-strength alloy steel and precision-machined, this flange provides robust connection between the transmission output shaft and driveline components, ensuring reliable torque transfer under extreme loads and shock conditions.
Key Features & Benefits
- Forged from 4340 or equivalent alloy steel for superior strength and fatigue resistance
- Precision-machined spline, pilot diameter, and mounting face for accurate alignment
- Induction-hardened spline teeth (> HRC 55) for extended wear life
- Shot-blasted and phosphate-coated for corrosion protection
- Balanced to strict tolerances to minimize driveline vibration
- High torque capacity – proven in severe-duty applications
Common Applications (Caterpillar® Compatibility)
- Wheel Loaders: 966C, 966D, 966E, 970F, 980B, 980C, 980F
- Track-Type Tractors: D6D, D7G, D8K
- Off-Highway Trucks: 769C, 773B
- Position: Torque converter or transmission output yoke/flange (connects to universal joint or driveshaft)
Technical Specifications
- Part Number Reference: 3P-6318
- Material: Forged & heat-treated alloy steel
- Spline: 24-tooth (major diameter ≈ 3.5 in)
- Mounting: 8-bolt pattern on 10 in circle
- Pilot Diameter: Matches factory dimensions
- Weight: ≈ 18–22 kg (40–48 lb)
Important Note:
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.
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.
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
Advatange
- Advatange One
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.
- Advatange Two
With 18 Years Experience In Manufacturing And Exporting, Diron Has A Team Of Knowledgeable Engineers, Inspectors, And Skilled Workers
- Advatange Three
The Products Export To More Than 80 Countries In America, Europe, Africa, The Middle East And So On. Reliable Quality Parts Won Trust From Valued Customers.