Basic Info.
| Part no. | 4JJ1 Cylinder Head Assy | Material | steel |
| Type | Cylinder Head | Part Type | Engine Parts |
| Compatibility | ISUZU | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed：2025/10/27
- Manufacturer：Diron Parts
Product Description
- Part Type: Cylinder Head
- Description: Replacement Part ISUZU 4JJ1 Cylinder Head Assy, New
The Cylinder Head Assembly for the Isuzu 4JJ1 is a new aftermarket replacement part designed for use in Isuzu machinery equipped with the 4JJ1 diesel engine. The brand name Isuzu is used solely as reference information to indicate compatibility and does not imply that this product is an OEM part.
Specifications:
- Part Number: Commonly referenced as 8-97355970-9, 8973559709, or similar (specific part numbers may vary by supplier; confirm with supplier for exact match to 4JJ1 engine)
- Part Type: Cylinder Head Assembly (typically complete, including valves, springs, guides, and seals)
- Material: Constructed from high-quality cast iron or aluminum alloy (depending on configuration) for durability, heat resistance, and compatibility with high-performance diesel engines
- Weight: Approximately 100–150 lbs (45.4–68 kg), depending on whether supplied as a bare head or complete assembly
- Condition: New, aftermarket
- Features:
- Designed specifically for the Isuzu 4JJ1 diesel engine, a 4-cylinder, 3.0L inline engine with a 16-valve configuration and direct injection, often turbocharged (e.g., 4JJ1-TC, 4JJ1-TCX)
- CNC-machined to meet OEM specifications for precise fitment
- Pressure and vacuum tested to ensure quality and performance
- Complete assemblies include valves, springs, premium valve stem seals, retainers, and injector sleeves
- Supports engine power output of approximately 120–163 hp at 2,800–3,600 rpm, depending on configuration
Compatible Equipment Models:
This replacement cylinder head assembly is compatible with various Isuzu machinery and rebranded equipment equipped with the 4JJ1 diesel engine, including but not limited to:
- Trucks:
- Isuzu NPR, NQR, NRR (e.g., models with 4JJ1-TC, 4JJ1-TCX engines)
- Isuzu Elf (e.g., 3.0L diesel models)
- Excavators (rebranded or OEM):
- Hitachi ZX135US-3, ZX135USK-3, ZX135USL-3
- Sumitomo SH135X-3
- Case CX130B, CX135B
- Engines: 4JJ1, 4JJ1-TC, 4JJ1-TCX
- Serial Numbers: Varies by model; consult Isuzu or equipment-specific service documentation for exact engine serial numbers
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.
- 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.
