This is an Isuzu 4JJ1 engine for sale in fairly used condition: a complete 3.0 litre common-rail turbo diesel, taken from a donor vehicle, checked over, compression-tested and ready to ship worldwide. It’s the engine for the Isuzu D-Max, MU-X, MU-7 and Elf light trucks, and the Colorado diesels that shared it.
Before you pay, we confirm the version matches your vehicle and send photos of the actual engine.
What’s Included With This Isuzu 4JJ1 Engine for Sale
- Complete engine: block, crankshaft, pistons, rods, DOHC cylinder head
- Common rail, high-pressure pump and injectors
- Turbocharger
- Intake and exhaust manifolds
- Alternator and starter on most units (confirmed on your quote)
- Compression test results and photos
- Drained, sealed and crated for shipping
The engine computer, wiring loom and gearbox are not included unless agreed in writing. In most like-for-like swaps, your existing computer and loom work with the replacement.
Isuzu 4JJ1 Specifications
| Engine code | 4JJ1-TC / 4JJ1-TCX (version confirmed before sale) |
| Type | Inline 4-cylinder turbo diesel, intercooled |
| Displacement | 2,999 cc (3.0 L) |
| Bore x stroke | 95.4 mm x 104.9 mm |
| Compression ratio | About 17.3:1 |
| Valvetrain | DOHC, 16 valves, chain-driven camshafts |
| Fuel system | High-pressure common-rail direct injection |
| Power | About 107 to 130 kW depending on version |
| Torque | 360 Nm (TC), 380 Nm (TCX), up to 430 Nm (Hi-Power) |
| Condition | Fairly used, tested |
Vehicles This Engine Fits
- Isuzu D-Max (from around 2007 in many markets)
- Isuzu MU-7 and MU-X
- Holden and Chevrolet Colorado diesels in some markets
- Isuzu Elf / N-Series light trucks
The 4JJ1 came in TC, TCX and later Hi-Power versions, with different turbos, sensors and emissions equipment. We match by engine code and chassis number so the Isuzu 4JJ1 engine for sale you receive suits your exact vehicle.
Why a Fairly Used 4JJ1?
The 4JJ1 is a proper truck diesel: strong at low revs, happy carrying weight, and reasonably economical. It’s also a modern common-rail engine, which means rebuilding a failed one often needs new injectors, a turbo and machining all at once. A tested, fairly used Isuzu 4JJ1 engine for sale is usually quicker and cheaper.
Fairly Used, Reconditioned or Rebuilt?
The price here is for a fairly used, tested engine. That’s the best value for most D-Max and MU-X owners. For an Elf truck working full days, we can quote a reconditioned unit with fresh seals and serviced injectors or turbo, or a full rebuild. Tell us how the vehicle works and we’ll be straight with you about which one to buy.
Signs It’s Time to Replace Your 4JJ1
Plenty of 4JJ1 faults can be fixed: a bad injector, a sticky EGR valve or a clogged DPD can make the engine run badly while the core is fine. Replacement starts to make sense when you see:
- Low or uneven compression
- Coolant loss with no visible leak, or sweet-smelling white smoke
- Oil level rising on the dipstick
- A knock from the bottom end
- Metal in the oil, or a failed turbo that has sent debris into the engine
If your mechanic finds any of these, a tested Isuzu 4JJ1 engine for sale usually works out cheaper than a rebuild once you add injectors, turbo, machining and the weeks off the road.
A Word on the Electronics
Unlike older Isuzu diesels, the 4JJ1 runs through an engine computer, and many vehicles also have an immobiliser tied to the key. Matching the version (TC, TCX or Hi-Power) is what keeps the swap simple. Mixing versions can bring warning lights and poor running, so we always check before any Isuzu 4JJ1 engine for sale leaves our yard.
How We Test It
- Compression test on every cylinder.
- Block and head inspected for cracks and leaks.
- Oil checked for coolant, fuel or metal.
- Turbo checked for play and, on variable-geometry units, actuator movement.
- Injectors and rail inspected for leaks.
- Photos and, on request, video sent to you.
No engine leaves without passing. That includes every Isuzu 4JJ1 engine for sale on our site.
Fitment Details We Need
- Make, model and year
- VIN or chassis number
- Engine code and version (TC, TCX or Hi-Power)
- Whether your vehicle has a DPD (particulate filter)
- Manual or automatic, 2WD or 4WD
- Photos of your current engine and labels
Fitting Tips
Pass these to your mechanic when your Isuzu 4JJ1 engine for sale arrives:
- Clean the intercooler pipes if the old engine failed badly.
- New fuel filter, and drain the water separator.
- Fresh oil and filter, with the grade your manual specifies.
- Prime the fuel system properly.
- Enter injector codes if your system needs them, and clear old fault codes.
- Drive gently for the first few hundred kilometres.
For more on versions, electronics and common problems, read our full guide to the Isuzu 4JJ1 engine for sale.
Worldwide Shipping
We ship by sea or air to Africa, Asia, the Middle East, Europe, the Americas, the Caribbean, Australia, New Zealand and the Pacific, with tracking. Duties and local fees are paid at your end. Our shipping policy has the details.
Warranty and Returns
Covered by a warranty against internal mechanical failure, with the terms written on your quote. Keep your mechanic’s installation receipt. Full rules are in our refund and returns policy.
More Isuzu Engines
We also sell the Isuzu 4JK1, Isuzu 4HK1, Isuzu 4JB1TCH and Isuzu 4HG1. See all Isuzu engines or browse the shop.
Questions
Is this engine new?
No. It’s fairly used and tested, which keeps the price well below new.
Do I need a new engine computer?
Usually not for a like-for-like swap, though injector codes may need entering.
Is shipping included?
No. Freight depends on your country and delivery point, and we quote it with the engine on one page.
How do I order?
Add this Isuzu 4JJ1 engine for sale to your cart, or send your vehicle details through our contact page. You can also call +1 (209) 733-0882 or WhatsApp +1 209 690 5983. We confirm the fit before you pay.
Reviews
There are no reviews yet.