Part Name: Cylinder Head 5102771
Part Number: 5102771
Basic Info.
| Parts no. | 5102771 | Material | steel |
| Type | CYLINDER HEAD | Parts Type | Engine Parts |
| Compatibility | Detroit | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model:5102771
- Date First Listed:2026/03/18
- Manufacturer:Diron Parts
Product Description
- Part Number:5102771
- Part Type:Cylinder Head
- Description:Cylinder Head 6bt-2 3966454 3934747 3934746 for Cummins

The 510-2771 is a complete aftermarket cylinder head assembly engineered for Detroit Diesel 4-71 two-stroke diesel engines. This fully loaded unit features an all-new casting that is CNC-machined to precise tolerances, pressure-tested, and pre-assembled with premium valves, springs, guides, seats, and injector sleeves – providing a ready-to-install solution for major engine overhauls in demanding construction, marine, industrial, and generator-set applications.
Key Features & Benefits
- All-new casting with reinforced valve bridge and deck areas for high-compression reliability
- Pre-installed premium valves and heavy-duty valve springs for consistent two-stroke operation
- Precision-machined combustion chambers and ports for optimal scavenging and power output
- 100 % pressure-tested to 100 psi and vacuum-verified for zero porosity or leaks
- Arrives fully assembled and ready to bolt on, significantly reducing overhaul time
- Proven performance in high-hour 4-71 engine rebuilds
Common Applications (Detroit Diesel® Compatibility)
- Engine: 4-71 (all ratings – naturally aspirated and blower-equipped configurations)
- Typical Machines & Equipment: – Construction Equipment (wheel loaders, excavators, backhoe loaders) – Marine Propulsion (work boats, fishing vessels, auxiliary engines) – Generator sets and industrial power units – Older trucks, buses, and off-road equipment (repower or legacy fleets)
Technical Specifications
- Part Number Reference: 510-2771
- Configuration: 8-valve, 4-cylinder two-stroke inline
- Weight (loaded): ≈ 85–95 kg (187–209 lb)
Important Note:
- The OE name Caterpillar, Cummins, Komatsu,Detroit 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.







