
Part Name: 4TNE84 Cylinder Head
Part Number: 4TNE84
Basic Info.
Part no. | 4TNE84 | Material | steel |
Type | Cylinder Head | Part Type | Engine Parts |
Compatibility | Yanmar | Transport Package | Wooden box |
Trademark | DIRON | Origin | Luoyang City |
HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed:2025/03/23
- Manufacturer:Diron Parts
Product Description
- Part Type:Cylinder Head
- Description: Yanmar Engine

Product Introduction: Yanmar 4TNE84 Cylinder Head
Overview
The Yanmar 4TNE84 Cylinder Head is a precision-engineered component designed for the Yanmar 4TNE84, a 1.995-liter (2.0L), four-cylinder, naturally aspirated diesel engine. Part of Yanmar’s TN (TNV/TNE) series, this engine is widely used in industrial applications such as compact excavators, skid steer loaders, tractors, and generators. Manufactured to OEM specifications, the 4TNE84 Cylinder Head is available in bare or complete configurations (with valves, springs, and camshaft), making it an ideal replacement part for maintaining engine reliability and performance. Known for its durability and efficiency, this cylinder head supports Yanmar’s reputation for low-emission, high-power-to-weight-ratio diesel engines.
Key Features
- Material: Constructed from cast iron, providing excellent durability, heat resistance, and strength, suited for the demands of diesel combustion.
- Design: Features a single overhead camshaft (SOHC) configuration with 8 valves (2 per cylinder), precision-machined intake and exhaust ports for optimized airflow, and compatibility with indirect injection systems.
- Compatibility: Specifically designed for the Yanmar 4TNE84 and its variants, including:
- 4TNE84, 4TNE84T (turbocharged), 4TNE84-AF, 4TNE84-EAF, 4TNE84-GB2B.
- Applications: John Deere tractors (e.g., 990, 4500, 4510, 4600), Komatsu excavators (e.g., PC40-7, PC45-1), Kobelco excavators (e.g., SK40SR-2, SK50UR-3), and Yanmar generators (e.g., YEG400 series).
- Part Numbers: Common OEM references include 129407-11700, YM129407-11700, and YMR001601.
- Configuration Options: Offered as a bare cylinder head or fully assembled with pre-installed valves, springs, and camshaft, depending on supplier offerings.
Technical Specifications
- Engine Fitment: Yanmar 4TNE84 (1,995 cc, 2.0L, 4-cylinder diesel)
- Material: Cast iron
- Valve Configuration: 8-valve SOHC (intake and exhaust valve sizes typically 35-38 mm and 31-34 mm, respectively, though exact sizes may vary).
- Power Output: Supports 30-50 HP, depending on application and tuning.
- Weight: Approximately 35-45 lbs (16-20 kg), varying by configuration (bare vs. complete).
- Fuel System: Compatible with indirect injection, typical of the 4TNE84’s design for industrial use.
Performance Benefits
The Yanmar 4TNE84 Cylinder Head enhances engine performance by:
- Ensuring a tight seal for the combustion chamber, maintaining compression ratios (typically 18:1 to 20:1) for efficient diesel operation.
- Optimizing airflow through well-designed ports, improving fuel efficiency and reducing exhaust emissions, a key feature of Yanmar’s TN series.
- Providing thermal stability under continuous operation, crucial for industrial equipment like excavators and generators.
Applications
This cylinder head is integral to equipment powered by the Yanmar 4TNE84 engine, including:
- Agricultural Equipment: John Deere utility tractors (e.g., 990, 4500, 4510, 4600), Landini Mistral 50.
- Construction Machinery: Komatsu excavators (e.g., PC40-7, PC45R-8), Kobelco SK40SR-2, Daewoo/Doosan skid steers (e.g., 1340XL, DSL601).
- Generators: Kohler (e.g., 15CCO, 19EOZ), Yanmar YEG400 series.
- Other Equipment: Mustang loaders (e.g., 2040, 2054), Hyundai HSL610 skid steer loaders.
Installation Considerations
- Compatibility Check: Verify engine variant (e.g., 4TNE84, 4TNE84T) and part number (e.g., 129407-11700) for proper fitment.
- Required Components: Installation typically requires a new head gasket (e.g., 129408-01330), head bolts, and possibly a timing kit for comprehensive service.
- Torque Specifications: Follow Yanmar’s multi-stage torque sequence (e.g., initial torque of 40 Nm, followed by angle tightening) to ensure proper sealing.
- Professional Installation: Recommended due to the precision needed for diesel engine alignment and timing.
Why Choose the Yanmar 4TNE84 Cylinder Head?
- Durability: Cast iron construction ensures longevity in harsh industrial environments.
- Efficiency: Restores the engine’s low-emission and high-efficiency characteristics, ideal for eco-conscious operations.
- Versatility: Supports a wide range of machinery, making it a cost-effective repair solution.
Note: While this description provides general information about cylinder heads, 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.








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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.







