Part Name: Replacement Parts Rocker arm Assembly 8n4576
Part Number: 8n4576
Basic Info.
| Parts no. | 8n4576 | Material | steel |
| Type | Rocker arm Assembly | Parts Type | Engine Parts |
| Compatibility | Caterpillar | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Description
- Parts Number: 8n4576
- Parts Type: Rocker arm Assembly
- Description: Rocker arm Assembly 8n4576 for Caterpillar, New
The 8N-4576 is a complete aftermarket rocker arm assembly engineered for Caterpillar® 3306 and 3406 series diesel engines. This fully assembled unit includes the rocker arm, push rod cup, and pivot components, providing precise valve actuation, reliable timing, and consistent engine performance in demanding industrial, construction, marine, and generator-set applications.
Key Features & Benefits
- Complete pre-assembled rocker arm with push rod seat and pivot point
- Precision-machined contact surfaces for smooth valve train operation
- Designed to maintain accurate valve lift and timing across full RPM range
- Built-in lubrication passages for consistent oil delivery to contact points
- 100 % function-tested for smooth rotation, clearance, and no binding
- Proven reliability in high-hour engine operations
Common Applications (Caterpillar® Compatibility)
- Engines: – 3306 (PC & DI) – 3406 (early mechanical)
- Typical Machines: – Track-Type Tractors: D6D, D7G, D8K – Wheel Loaders: 966C, 966D, 980C – Excavators: 225, 235 – Generator sets, marine propulsion, and industrial power units
Technical Specifications
- Part Number Reference: 8N-4576
- Type: Complete rocker arm assembly (intake or exhaust position)
- Configuration: Single rocker arm with push rod cup and pivot
- Valve Clearance Compatibility: Matches factory specifications
- Weight: ≈ 1.8 kg (4.0 lb)
- Quantity per engine: 12 (6 intake + 6 exhaust for 6-cylinder engines)
Important Note:
- The OE name Caterpillar, Cummins, Komatsu are only used as reference information in here. does not mean our product are OEM. We only work replacement products, are used those machineries in aftermarket.
- 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.
