- Displacement
- 3.0 litres (2,999 cc), four cylinders, common rail diesel
- Letter codes
- 4JJ1-TC, 4JJ1-TCX and others; 4JJ3-TCX
- What to watch
- Pickup and truck versions of the 4JJ1 differ. Send the VIN or chassis number.
- Why buyers replace it
- Pickups and light trucks in continuous work, where a new engine is the cheapest way to keep earning.
New Isuzu 4JJ1 and 4JJ3 engines, sourced to order.
New Isuzu 4JJ1 and 4JJ3 engines for Isuzu D-Max, MU-X and N-series: complete engines, long blocks and short blocks, genuine or OE-built, zero mileage and never reconditioned. Send the VIN and the engine code and we confirm price, form and lead time within one working day.
New Isuzu 4JJ1 and 4JJ3 units available to order through our UK and European supply network.
Where the Isuzu 4JJ1 and 4JJ3 fits
- 1D-Max2007 onward
- 2MU-X2013 onward
- 3N-seriesNLR and NMR light trucks in some markets
The 3.0 four-cylinder diesel in the D-Max and MU-X, and in the lighter N-series trucks. The 4JJ3 replaced the 4JJ1 in the 2020 D-Max.
Identifying a Isuzu 4JJ1 and 4JJ3
What we check before we quote, and where the wrong engine gets shipped.
Complete engine, long block or short block?
The form is stated on every quote, with what is included and what moves across from the old engine.
Complete engineBlock, head, crank train, timing drive and the ancillaries the manufacturer ships with that part number
Long blockBlock, crank train, head and timing drive; your injectors, turbo and ancillaries move across
Short blockBlock, crankshaft, pistons and rods; for workshops rebuilding on their own head
Injectors and pump
If the old engine failed from fuel contamination, the injectors and pump go with it. We quote new injectors and the high pressure pump on the same list.
Fitting parts
Gasket sets, timing kits, mounts, filters and fluids for the swap come from our engine and cooling range, and turbochargers where the old one is suspect.
Frequently asked
Is a new Isuzu 4JJ1 and 4JJ3 engine genuine or OE?
Either, and the quote says which. Genuine means the vehicle manufacturer's own unit with its part number. OE-built means a new engine assembled from the original manufacturer's components. Both are new and zero mileage. The grades are explained here.
Do you supply reconditioned or used engines?
No. Every engine we quote is new. We do not supply reconditioned, remanufactured, ex-test or used engines.
What comes with the engine?
That depends on the form: complete, long block or short block. The quote lists what is included and what is not, including injectors, turbo, flywheel, sensors and the wiring loom, so you know what moves across from the old engine.
What do you need to quote a Isuzu 4JJ1 and 4JJ3?
The VIN and the engine code from the block. A photograph of the engine plate or the block stamping is enough. Pickup and truck versions of the 4JJ1 differ. Send the VIN or chassis number.
Warranty, core return and lead time?
All three are stated on the quote for the specific unit, because they differ by engine and by source. We do not quote a generic figure that the engine in front of you may not meet.
Can you ship a new engine for export?
Yes. Engines travel crated on a pallet. We deliver to your forwarder with the commercial invoice, packing list and origin documents, or consolidate the engine with the rest of your list. How export works.
Ask for a price on a new Isuzu 4JJ1 and 4JJ3
Send the VIN and the engine code, or a photograph of the engine plate. We come back with price, form and lead time within one working day.
Prefer another route?
- Open a trade accountUpload lists, see your prices, order online. For regular buyers.
- Email[email protected]
- Have stock to sell?List your parts stock with us and quote our buyers' lists.
Why buyers use Sparesdock
- Response
- Price and availability within one working day
- Company
- Sculf B.V.
- KvK number
- 94352828
- Response
- Price and availability within one working day
- Company
- Shoreditch Trading Limited, since 2019
- Company number
- 11839014