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New 4HK1 Engine Long Block For ISUZU NPR NQR FTR 700P
Engine Model: 4HK1-TC / 4HK1-TCG40 | 5.2L Turbo Diesel | Long Block Assembly Condition: Brand New | 100% Tested MOQ: 1 piece | Warranty: 12 Months
Description
Products Overview
Direct replacement 4HK1 engine long block for ISUZU NPR, NQR, FTR, and 700P medium-duty trucks. This 5.2L turbo diesel long block includes the cylinder block, cylinder head, crankshaft, pistons, connecting rods, camshaft, and valvetrain – providing the ideal foundation for a complete engine rebuild or replacement. Manufactured to China ISUZU (Qingling) Quality standards, ensuring factory-spec fitment and durability
This 4HK1 long block includes the cylinder block, cylinder head, crankshaft, pistons, connecting rods, camshaft, and valve train – providing the ideal foundation for a complete engine rebuild or replacement.It is designed to accept your existing external components such as the turbocharger, fuel injection system, manifolds, sensors, and covers, making it the perfect solution for engine replacement or major overhaul projects.
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Key Specifications
| Parameter | Specification |
|---|---|
| Engine Model | 4HK1-TC / 4HK1-TCG40 |
| Displacement | 5.2L (5193cc / 317 CID) |
| Configuration | 4-cylinder in-line, 16-valve, SOHC |
| Bore × Stroke | 115mm × 125mm (4.53 in × 4.92 in) |
| Compression Ratio | 16.5:1 – 18.5:1 (depending on model year) |
| Firing Order | 1-3-4-2 |
| Engine Block | Cast iron with dry type cylinder liners |
| Cylinder Head | Cast iron |
| Aspiration | Turbocharged, intercooled |
| Fuel System | High-pressure common rail direct injection |
| Condition | Brand New – 100% Tested |
| Warranty | 12 Months |
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Cast Iron Block with Dry Liners | Exceptional durability and rebuildability – Handles high cylinder pressures |
| 5.2L Displacement | Perfect balance of power and efficiency for medium-duty commercial applications |
| SOHC 16-Valve Design | Efficient valvetrain – Reduced complexity and maintenance |
| High-Pressure Common Rail | Precise fuel control – Optimizes efficiency and power delivery |
| Turbocharged & Intercooled | Denser air charge for improved power and fuel economy |
| 375,000 Mile B10 Life | Designed for maximum fleet uptime and low total cost of ownership |
| Brand New – Not Remanufactured | No core charge issues – Long-term reliability |
| Complete Long Block | Ready for assembly – Saves time and labor costs |
Compatible Vehicle Applications
| Model | Application |
|---|---|
| ISUZU NPR | Direct factory replacement (NPR-HD, NPR425, NPR75) |
| ISUZU NQR | Direct factory replacement |
| ISUZU FTR | Direct factory replacement |
| ISUZU 700P | Direct factory replacement |
| ISUZU NRR | Compatible |
| ISUZU NPR250 / NPR300 | Compatible |
Long Block Contents
| Included Component | Details |
|---|---|
| Cylinder Block | Cast iron – Dry type liners |
| Cylinder Head | Cast iron – 16-valve SOHC |
| Crankshaft | Forged steel – 5 main bearings |
| Pistons | Aluminum alloy (4) – Complete with rings |
| Connecting Rods | High-strength steel (4) |
| Camshaft | Single overhead camshaft – Gear driven |
| Valve Train | Valves, springs, retainers, lifters (complete assembly) |
Why Choose Our 4HK1 Long Block?
1. Factory-Spec OEM Quality – Manufactured to Isuzu's original equipment specifications. This long block is the identical factory replacement for Isuzu NPR, NQR, FTR, and 700P trucks.
2. The Proven 5.2L 4HK1 Platform – The 4HK1 is one of Isuzu's most successful medium-duty engine platforms, known for exceptional durability, low operating costs, and extended service life.
3. Long Block vs. Short Block – A long block includes the cylinder head and valvetrain in addition to the block and rotating assembly – saving assembly time and reducing the risk of installation errors.
4. Ready for Assembly – Not a Short Block – This is a complete long block assembly, not a partial kit. It arrives ready for final assembly with your existing external components.
5. Compatible Across Multiple Isuzu Models – Fits NPR, NQR, FTR, and 700P trucks with 4HK1 engines – versatile for workshops and fleets.
6. 29 Years of One-Stop Supply Experience – With nearly three decades in the Isuzu parts industry, we ensure every component meets rigorous quality standards. Backed by a full 12-month warranty.
Packaging & Shipping
| Item | Details |
|---|---|
| Packaging | Heavy-duty wooden crate – Export standard |
| MOQ | 1 piece |
| Delivery Time | 7–15 working days |
| Shipping Methods | Express, Sea Freight, Air Freight |
| Warranty | 12 Months |
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