Part Name: Cylinder head 5271866
Part Number: 5271866
Basic Info.
| Part no. | 5271866 | Material | Iron |
| Type | Cylinder Head | 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: Cylinder Head
- Date First Listed: 2025/12/03
- Manufacturer: Diron Parts
Product Description
- Part Number：5271866
- Part Type：Cylinder Head
- Compatible Equipment：Cummins
The 527-1866 is a premium-grade aftermarket bare cylinder head engineered for Cummins® ISX15 and QSX15 dual-overhead-cam engines (CM2250, CM2350, and X15 Efficiency/Performance series). Cast from high-density grey iron with increased nickel content, fully CNC-machined, and pressure-tested to 100 psi, this head delivers exceptional durability and thermal stability in severe-duty on-highway, mining, marine, and power-generation applications.
Key Features & Benefits
- New casting – no core charge, no welded repairs
- Thicker deck surface and reinforced valve bridge areas for high-boost and high-EGT reliability
- Precision-machined valve seats with premium Stellite-faced exhaust seats pre-installed
- 100% CNC ported intake and exhaust runners for optimal flow and consistency
- All threads chased and inspected; injector bores honed to exact tolerance
- Multi-stage pressure and vacuum tested for zero porosity or cracks
- Supplied with valve stem seals and seat inserts installed (bare head – valves, guides, and springs available separately)
Common Applications (Cummins® Compatibility)
- Engines: – ISX15 CM2250 / CM2350 / X15 Efficiency & Performance Series – QSX15 (industrial & marine)
- Typical Equipment: – Kenworth T680/T880, Peterbilt 579/389, International Lonestar/ProStar – Mining trucks, large generators, marine propulsion packages
Technical Specifications
- Part Number Reference: 5271866 (also fits 5413782, 4962732, 3686660)
- Material: High-nickel grey iron (280–320 BHN)
- Valve Configuration: 24-valve, 4 valves per cylinder
- Injector Type: Dual-cam common-rail (XPI)
- Weight (bare): ≈ 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.
