Toyota 1HZ Engine for Sale: 7 Proven Checks Before You Buy

If you are hunting for a Toyota 1HZ engine for sale, chances are you own a Land Cruiser or a Coaster that has done a lot of hard work and the old motor is finally tired. Maybe it is blowing smoke, maybe it lost compression on one cylinder, or maybe the head cracked after a hot day towing. Whatever happened, the good news is that the 1HZ is one of the easiest diesel engines in the world to replace, and a good used one can run for another few hundred thousand kilometers.

Need an engine now? We have a Toyota 1HZ engine for sale and ship worldwide. Send us your VIN or chassis code and we will confirm fit, price and shipping to your port or door. Every engine comes with a 6-month limited warranty.

This guide is what we tell buyers on the phone every week. Specs, which trucks use it, the checks that matter, common problems, costs, and how buying from us actually works.

Why a Toyota 1HZ Engine for Sale Is Still in Demand

The 1HZ came out in 1990 and Toyota kept building it for decades. That alone tells you something. It is a big, slow, simple 4.2 liter six cylinder diesel with no turbo, no common rail and very little electronics. Farmers, mining crews, aid groups and overlanders love it for the same reason: it keeps going when a fancier engine would leave you stranded.

It is not fast. Nobody buys a 1HZ for acceleration. You buy it because it starts on cold mornings, runs on fuel that is not always clean, and can be fixed by a mechanic with basic tools in the middle of nowhere. That is why a Toyota 1HZ engine for sale still gets snapped up quickly, even though newer engines like the 1VD-FTV exist.

There is also a huge supply of donor vehicles. Land Cruiser 70, 80 and 100 series trucks and Coaster buses all used it, so parts are everywhere and prices stay reasonable.

Toyota 1HZ Engine Specifications

Specification	Toyota 1HZ
Engine type	Inline six cylinder diesel, naturally aspirated
Displacement	4,164 cc (4.2 L)
Bore x stroke	94.0 mm x 100.0 mm
Valvetrain	SOHC, 12 valves (2 per cylinder)
Combustion	Indirect injection, swirl chamber
Compression ratio	22.7:1
Fuel pump	Mechanical rotary injection pump
Block and head	Cast iron block, cast iron head
Camshaft drive	Timing belt
Power (approx.)	96 to 101 kW (129 to 135 hp) at about 3,800 rpm
Torque (approx.)	271 to 285 Nm (200 to 210 lb-ft) at about 2,200 rpm
Firing order	1-5-3-6-2-4
Production	1990 onwards

Output figures move around a little by market and year, but every Toyota 1HZ engine for sale shares the same basic design. If you want the background on the whole H family, the Toyota H engine page covers the 1HZ, 1HD-T and 1HD-FTE side by side.

The key point in that table is the indirect injection. It is a big part of why the 1HZ is so tolerant. The injectors spray into a small pre-chamber rather than straight onto the piston, so the engine is less fussy about fuel quality and runs lower peak pressures than a direct injection turbo diesel. If you are curious how that works, there is a decent explanation of indirect injection worth a read.

What those numbers mean on the road

On paper, 130 or so horsepower in a two and a half ton truck sounds weak, and on the highway it is. But the torque comes in low, the gearing in a Land Cruiser suits it, and it will crawl up a rocky climb all day without fuss. Owners who know what they are getting tend to love it. If you expect a modern turbo diesel, a Toyota 1HZ engine for sale will feel slow. If you want something that just works, it is hard to beat.

Which Vehicles Use the 1HZ?

Before you buy any Toyota 1HZ engine for sale, make sure your vehicle actually has one. The common ones are:

Land Cruiser 70 series: HZJ70, HZJ71, HZJ73, HZJ75, HZJ76, HZJ77, HZJ78, HZJ79 (troop carrier, wagon, pickup)
Land Cruiser 80 series: HZJ80
Land Cruiser 100 and 105 series: HZJ105 (solid front axle version)
Toyota Coaster bus: HZB50 and related models

The chassis code starts with HZ for a reason. If yours says HDJ, you have a 1HD-T or 1HD-FTE turbo engine, which is a different job. If it says FZJ, it is the 1FZ-FE petrol six. We get a lot of mix-ups here, so check the plate under the hood or send us a photo.

Versions and Small Differences to Know

The 1HZ did not change much over the years, which is part of its charm. Still, a used Toyota 1HZ engine for sale from one truck is not always a drop-in for another without moving a few parts across.

Sump and oil pickup. The 70, 80 and 105 series use different sump shapes to clear the front axle and steering. Keep your old sump and pickup if the new engine came from a different model.
Accessories. Alternator brackets, power steering pumps and air conditioning compressors vary by year and market.
Injection pump. Later engines, especially in some markets, got small changes to the pump and emissions parts. The basic pump is the same family.
Manual vs automatic. The rear of the block and flywheel or flexplate differ. Tell us which gearbox you run.

Most mechanics swap the sump, brackets and accessories from the old engine as a matter of course. It is a normal part of fitting any long block.

7 Checks Before You Buy a Toyota 1HZ Engine for Sale

These are the things we look at on our own engines and the things you should ask about if you buy anywhere else.

1. Compression on all six cylinders

A healthy 1HZ should show fairly even compression across all six. One low cylinder can mean a burnt valve, worn rings or a cracked head. Ask for the numbers, not just “good compression.”

2. The cylinder head, especially at the back

The 1HZ head can crack between the valve seats, and the rear cylinders run hottest. This shows up more on engines that were overheated, overloaded, or fitted with an aftermarket turbo without proper tuning. Look for coolant in the oil, white smoke that smells sweet, or pressure in the cooling system.

3. Blow-by

Pull the oil filler cap with the engine running. A little puffing is normal on an old diesel. Heavy smoke pouring out means worn rings.

4. Cold start and smoke

A good 1HZ starts within a few seconds once the glow plugs have done their job. A puff of smoke at start-up is fine. Constant blue or thick white smoke once warm is not.

5. Timing belt history

The belt drives the camshaft and the injection pump. If nobody knows when it was last done, budget for a new belt as part of the install. It is cheap insurance.

6. Injection pump and injectors

Rough idle, hard starting and lots of black smoke usually point here. A pump leak around the seals is common on older units and fixable, but you want to know before you pay.

7. Where it came from

A Toyota 1HZ engine for sale from a lightly used wagon is a better bet than one from a bus that ran 18 hours a day. Ask what it came out of and why.

If you want a deeper look at what separates a good used engine from a bad one, our article on tested used engines goes through the checks in more detail.

Common 1HZ Problems in the Real World

No engine is perfect. The 1HZ has a short list of known weak spots, and none of them are scary if you know about them.

Cracked head. The most talked about issue. Mostly linked to overheating, heavy towing in high heat, or turbo kits without an exhaust temperature gauge.
Low power. It is a naturally aspirated 4.2 diesel in a heavy truck. Some people think it is broken when it is just being a 1HZ.
Injection pump leaks. Seals harden with age. A reseal kit fixes most of it.
Timing belt neglect. Skipping the belt is asking for trouble.
Clogged radiators. Not an engine fault, but a dirty radiator kills more 1HZ heads than anything else.

When we look at a Toyota 1HZ engine for sale, the head is the first thing we worry about. A sound head on a well cooled engine is what you want.

Turbo Conversions on a 1HZ

Lots of owners bolt a turbo onto the 1HZ. Done properly with a pyrometer, modest boost and good cooling, it transforms the truck. Done badly, it cracks heads.

If you plan to turbo your replacement, tell us. We will point you toward a cleaner engine and you can get your parts sorted before install day. If your Toyota 1HZ engine for sale previously ran a turbo, ask about it, because that engine has had a harder life than a stock one.

Some people ask whether they should just go straight to a factory turbo engine instead. That is a fair question, and our 1HD-FTE vs 1HZ comparison covers the trade-offs honestly.

Is your old 1HZ finished, or can it be fixed?

Before you order anything, it is worth being sure. Some engines that look dead just need a pump overhaul or a set of injectors. A few simple tests tell you a lot. A compression test shows whether the bottom end and valves are sound. A cooling system pressure test or a block test for exhaust gas in the coolant tells you whether the head is cracked or the gasket is gone. If compression is low across several cylinders, or the head is cracked and the bores are worn, a replacement Toyota 1HZ engine for sale is usually the better money.

We also see engines that ran without oil after a sump got punctured on a rough track. Those almost always have a spun bearing or scored crank. At that point the rebuild bill climbs fast: crank grind, bearings, rings, head work, gaskets and labor. A sound used engine is often cheaper and quicker, and the truck is back to work in days instead of weeks.

If you are not sure, send us the symptoms. We will tell you honestly whether you need a whole engine or whether a local shop can sort it.

Buying for a fleet or a project?

Mining companies, safari operators, aid groups and bus owners often run several HZ trucks or Coasters. If that is you, ask about more than one engine at a time. Matching engines across a fleet keeps spare parts simple, and your mechanics only have to learn one setup. Overland builders on a project truck should tell us the plan up front too, whether that is a turbo later, a different gearbox or a dual battery setup, so the Toyota 1HZ engine for sale you get fits the plan rather than just the old engine bay.

Questions to Ask Any Seller of a Toyota 1HZ Engine for Sale

What vehicle did it come out of, and what was the mileage?
Can you send compression numbers and a video of it running?
Has the head ever been off, and was it pressure tested?
Is it a long block or a complete engine with pump and accessories?
What warranty comes with it, and what voids it?
How is it packed and shipped?

Any seller who dodges these is a seller to walk away from. Our guide to buying a used engine online has more on spotting the good ones.

What a Toyota 1HZ Engine for Sale Costs

We do not print one fixed price, because the right price depends on the engine. These are the things that move the number:

Long block or complete engine with injection pump, injectors and accessories
Mileage and condition of the donor
Whether you need a manual or automatic setup
Shipping distance and whether it goes to a port or your door

Tell us what you need and we will give you a clear price for a Toyota 1HZ engine for sale, shipped. For a wider picture of what you will spend on the whole job, see our breakdown of replacement engine cost.

One thing to keep in mind: a fresh used engine is often far cheaper than a full rebuild of a tired one, especially once you price a new head, pump overhaul and machine work. If you are weighing both, read rebuilt vs used engine first.

What Comes With Our Toyota 1HZ Engine for Sale

Every Toyota 1HZ engine for sale from us is a fairly used engine taken from a running vehicle. Depending on what you order, that can be a long block or a complete engine with injection pump and injectors. We tell you exactly what is included before you pay, with photos of the actual unit.

You also get a 6-month limited warranty. Labor is not covered, which is normal in this trade. The details are on our used engine warranty page.

How We Check Each Engine Before It Ships

We would rather lose a sale than ship a bad engine and deal with it later. So each 1HZ gets looked at properly:

Compression test on all six cylinders
Visual check of the head and block for cracks and old repairs
Oil and coolant checked for contamination
Turned over by hand to feel for tight spots
Ports and openings sealed, then the engine is strapped to a pallet

We focus on low mileage used engines where we can, because those last longest after the swap.

Installing a Used 1HZ: What Your Mechanic Should Do

A good install matters as much as a good engine. Most problems we hear about after a swap come from the install, not the engine. Ask your mechanic to:

Fit a new timing belt, tensioner and water pump while everything is easy to reach
Replace the rear main seal and front crank seal
Flush or replace the radiator. Never put a good engine behind a blocked radiator
Fit new glow plugs if the old ones are tired
Fill with fresh diesel rated oil and new filters
Bleed the fuel system properly and check for leaks
Set valve clearances if needed (shim and bucket type)

Run it gently for the first few hundred kilometers, then change the oil again. That first oil change picks up any assembly dirt.

Looking After Your 1HZ After the Swap

The 1HZ rewards boring maintenance. Change the oil often, keep the air filter clean, watch the temperature gauge and keep the radiator clean. If you tow heavy in hot weather, ease off on long climbs. Do that and your replacement Toyota 1HZ engine for sale will likely outlast the body around it.

A good habit is fitting an aftermarket temperature gauge you can actually read. The factory gauge sits in the middle for a wide range and does not always warn you early.

Shipping a Toyota 1HZ Engine for Sale Worldwide

We ship engines worldwide by sea and air freight. The 1HZ is heavy, so sea freight to the nearest port is usually the cheapest option, with door delivery available in many places. You get tracking once it leaves.

Every Toyota 1HZ engine for sale is drained, sealed and strapped to a pallet. Our shipping policy explains timelines and who handles customs. If you are importing, check your local rules on used engine imports before you order. It saves headaches.

Importing tips that save time

Have your paperwork ready before the engine lands. Some countries ask for the engine number on the invoice, some want proof the engine is used and not new, and some limit the age of imported parts. Tell us what your customs office needs and we will put it on the documents. A Toyota 1HZ engine for sale with clean paperwork clears much faster than one with a vague invoice, and that can save you days of storage fees at the port. If you use a clearing agent, give them our contact details so they can ask us directly.

How to Order

Send us your VIN, chassis code (HZJ75, HZJ80, HZJ105 and so on) and your country.
We confirm the right engine and send photos and a shipped price.
You pay by bank transfer and receive an invoice by email.
We pack and ship the engine, and you get tracking details.

You can reach us through the contact page or by phone at +1 (209) 733-0882. Before you order, have a look at our refund and returns page and our terms and services so there are no surprises.

1HZ vs 1HD-T vs 1HD-FTE: Which One Do You Need?

The short answer: buy the engine your truck came with. A 1HZ is the simplest and most forgiving. The 1HD-T adds a turbo and direct injection for more torque. The 1HD-FTE is the 24 valve, electronically controlled version with the most power, and the most to go wrong.

If your truck came with a 1HZ, a Toyota 1HZ engine for sale is the straightest path back on the road. You keep your gearbox, wiring and mounts, and the job is a weekend for a good mechanic. If you are thinking about upgrading instead, read our Toyota 1HDT engine for sale guide and our 70 series Land Cruiser engine swap guide first.

Other Toyota Engines and Guides

You can browse everything we stock in the used engines section of the shop.

Frequently Asked Questions

Is the 1HZ a reliable engine?

Yes. It is one of the toughest diesels Toyota ever built. Keep it cool and serviced and it will run a very long time.

How many kilometers can a 1HZ do?

Plenty run past 500,000 km before needing a rebuild. Cooling and oil changes make most of the difference.

Will a 1HZ from a Coaster fit my Land Cruiser?

The core engine is the same, but the sump, pickup and accessories may differ. Most people move those parts over from their old engine.

Does your Toyota 1HZ engine for sale include the injection pump?

It can. Tell us if you want a complete engine or a long block and we will quote both.

Do you ship to my country?

We ship worldwide. Tell us your country and nearest port and we will explain the options.

How do I pay?

By bank transfer. You receive an invoice and an order confirmation by email.

Get Your Land Cruiser Working Again

A tired 1HZ is not the end of a good truck. Find a sound Toyota 1HZ engine for sale, check the head and compression, fit it with a fresh belt and a clean radiator, and you are looking at years of slow, steady, reliable work. When you are ready, send us your VIN or call +1 (209) 733-0882 and we will get back to you with fit, price and shipping.

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