Basic Info.
| Parts no. | 6LT9.3 | Material | Iron |
| Type | Head Assembly | Parts Type | diesel engines parts |
| Engine No. | Cummins | Transport Package | Wooden Box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model: Head Assembly
- Date First Listed: 2025/12/25
- Manufacturer: Diron Parts
Product Description
- Parts Number：6LT9.3
- Parts Type：Head Assembly
- Compatible Equipment：Cummins
The 6LT9.3 is a complete loaded cylinder head assembly built for Cummins® 6LTAA9.3 (6L Tier 3 / Stage IIIA) industrial and automotive engines. This fully assembled unit features an all-new high-nickel grey-iron casting that is CNC-machined to precise tolerances, pressure-tested, and equipped with premium valves, springs, guides, seats, and seals – providing a ready-to-install solution for major overhauls in construction, agricultural, and generator-set applications.
Key Features & Benefits
- Brand-new casting – no repaired cracks or welds
- Reinforced valve bridge and thicker deck for high-boost reliability
- Premium 21-4N exhaust valves + Inconel intake valves for extended life
- Heavy-duty valve springs and rotocoils rated for severe-duty cycles
- Pre-installed bronze valve guides and Stellite-faced exhaust seats
- Copper injector sleeves and Viton seals factory-fitted
- 100 % pressure-tested to 100 psi and vacuum-verified for zero leaks
- Arrives fully assembled with all necessary components for quick installation
Common Applications (Cummins® Compatibility)
- Engine: 6LTAA9.3 (Tier 3 / Stage IIIA, 8.9L)
- Typical Equipment: – Wheel Loaders, Excavators, Dozers (various OEM brands) – Agricultural tractors and combines – Generator sets and industrial power units
Technical Specifications
- Part Number Reference: 6LT9.3
- Configuration: 24-valve, 6-cylinder inline
- Material: High-nickel grey iron casting
- Weight (loaded): ≈ 125 kg (275 lb)
Important Note:
- We only provide replacement products intended for aftermarket use in the Cummins machinery listed above. The brand name Cummins 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.
