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We distribute an extensive selection of NISSAN H20 FORKLIFT ENGINE parts for all makes and models. We ship directly from various warehouses located all over North America to provide the fastest shipping at the most affordable prices.

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 Nissan H20 Forklift Engine

Nissan Forklift H20

The Nissan H20 Engine model still gets high respect and credibility mainly because it is made by one of the leading forklift engine manufacturers in the industry, Nissan. Here are some of the essential aspects you may want to know about this powerful Nissan forklift engine before purchasing.

One of The Oldest and Most Trusted Nissan Forklift Engine Models

It's fair to claim that the Nissan H20 engine model is considered one of the oldest Nissan's engine variations of its forklift engine selections. With its serial number beginning with an S, this engine variation is characterized by having its thermostat mounted directly on top of its cylinder head. Many engine makers rapidly copied this particular configuration at that time, but only Nissan was able to get the perfect design with minimal error and maximum increase in productivity and power, especially for their forklift applications.

Aside from its special thermostat placement, each Nissan H20 engine model also counts with two different oil pan depths. The first oil pan depth having 4 1/2" shallowness, which enables many operators to get the most out of their material handling projects. The second and deeper pan of this Nissan forklift engine is 6", measured from the pan rail to the pan's bottom. As the Nissan H20 engine manual points out, this engine has also been characterized to have two cylinder heads classification. The first cylinder is a "two-bolt thermostat" and the second one is a "three-bolt thermostat." Both cylinders offer exceptional added options for operators and business owners to maximize their operations.

Here a Nissan H20 engine in action.



Engine Features

It must be added here that the power of this Nissan forklift engine doesn't end at having four cylinders. It also bears noting that this forklift engine has two bolt holes installed to each other that are evenly spaced along the opening of the thermostat. This gives the engines a stable structure and gives more options to the operators because they won't see the housing of the thermostat separated from the bolt holes.

Best Nissan H20 Engine Deals - Solid Lift Parts

What's also interesting to note in this Nissan forklift engine model is the fact that its oil filter is designed to spin onto what could be considered an aluminum oil filter that houses the bolting to its side of the block. The stable frame of the aluminum lends a phenomenal strength that not many engines out there can compete with.

Like the Nissan H20 engine manual says, this Nissan forklift engine counts with a bore length of 3.433 in and a stroke of 3.268 in. The firing order of this model is 1-3-4-2, and the Main Journal of the engine is 2.4785. Rod journal of the engine is 2.0462. For more exciting specs, check out our tables at the end, whose information was taken directly from the Nissan H20 engine manual.

A History of Excellence

This fantastic Nissan forklift engine was created mainly for the incredible dedication of the staff that builds the core of which is Nissan company today. Since 1978 the world has seen Nissan as a brand that can generate forklift systems that have solutions for their clients, including its Nissan H20 engine model. This engine, along with the rest offered by Nissan back in 1978, solved many issues that not many of the brands competing can provide and improved the growth of other companies in ways that seem incredible market growth.

It can be said that these forklift systems that answer the company's construction problems are able to do so because of the perfection it has achieved for creating narrow aisle reach trucks and order pickers. The narrow aisle and motorized hand pallet trucks that Nissan has offered to the material handling sector also rendered a fantastic avenue for more opportunities and business growth.

The Nissan JP50 Forklift

A noteworthy forklift model that employs a Nissan H20 engine is the Nissan JP50 forklift. This forklift model is known for its exceptional ergonomics and safety design, as well as its performance and durability. Thanks to its Nissan H20 engine, the JP50 is able to have an independent float system (IFS) that helps operators maneuver better, giving them better control and lowering the vibration they feel for every point of the operator's contact with the terrain.

An added bonus in this forklift is the fact that it has a break and inching pedals that are mounted to the truck frame. This enables the driver to get a better touch of where the vehicle should go and reduce pedal vibration. It is because of the H20 engine's power and smooth steering wheel vibration that this forklift can run this way.

It should be mentioned that the Nissan H20 engine model in this forklift also gives the vehicle an exclusive single lift/tilt lever that allows for lifting and tilting that happens simultaneously. This rarely is done by other forklifts, but thanks to the precise design this engine has, it's easier for the vehicle to run its operations in the smoothest way possible.

The forklifts that use the H20 engine are also characterized to be having fewer grease fittings that give way for better access during maintenance. Most forklifts compatible with this engine also have a side thrust roller on their fork carriage for easier access for carriage adjustments. 

It can be added here that the forklifts with Nissan H20 engine models contain hydrostatic power steering that helps reduce the strain and stress that the operator feels while operating the vehicle. The low front cowl design of the JP50 with its heel/toe pedal design is possible today because of the perfect synch that the H20 engine provides for the forklift.


The H20 Engine is used in various industrial forklifts by Nissan. With its remarkable reliable performance and compatibility in Nissan's forklifts, it's easy to say that this engine deserves the renown and high reputation it receives from the market today.


Nissan H20 Engine - Basic Specifications







Spark Plug Type


Displacing (L)


Spark Plug Gap  (in)

.028 - .031

Displacing (C.C)


IGN. Timing Idle Speed

7 deg.BTDC/550

Bore (in)

3.43 (87.2 mm)

Distributor Gap (in)

.018 - .022

Stroke (in)


Oil Capacity With Filter

4.5 U.S.qts.

Firing Order

1 - 3 - 4 - 2




Nissan H20 Engine - Torque ValuesSpecifications


Ft. Lbs


Ft. Lbs

Oil Pan Drain Plug

14 - 29

Main Bearing Caps

72 - 79

Oil Pump Bolt

15 - 25

Rod Bearing Caps

35 - 44

Rocker Arm Nut

12 - 17

Cylinder Head Bolts

59 - 69

Rocker Shaft Bracket Bolt

36 - 43

Cam Sprocket 


18 - 22

Side Cover Bolt

2.9 - 5.8 

Crank Pulley Bolt

87 - 116 

Spark Plug

11 - 14

Flywheel Bolt

43 - 54

Water Outlet Bolt

7 - 12

Flywheel Housing

22 - 29

Water Pump Bolt

14 - 18

Manifold Bolt and Nut

10 - 13

Water Pump Pulley Bolt

4.3 - 7.2

Oil Pan Bolt

2.9 - 5.1


Nissan H20 Engine - Pistons  Specifications





P. Diameter 

3.4325 - 3.4344

Cyl. Bore Clearance 

.0010 - .0018

P. Pin Diameter 

.8656 - .8661




Nissan H20 Engine - Camshaft  Specifications





Rear Journal Diameter 

1.6228 - 1.6233

Front Journal Diameter

1.7887 - 1.7892

End Play

.0020 - .0110

Center Journal Dia.

1.7282 - 1.7287


Nissan H20 Engine - Crankshaft  Specifications





Rod Journal Diameter 

2.0457 - 2.0462

Main Journal Diameter 

2.4780 - 2.4785

Rod Run Clearance

.0004 - .0026

Main Run Clearance 

.0008 - .0024

End play 

.0020 - .0071 




Nissan H20 Engine - Rings  Specifications





Side Clearance-Top

.0016 - .0029

Ring Gap-Top

.0098 - .0157

Side Clearance-2nd

.0012 - .0025

Ring Gap-2nd

.0059 - .0118

Ring Gap-Oil

.0118 - .0354




Nissan H20 Engine - Valves Specifications





Exhaust Length

4.35 - 4.37

Intake Length

4.33 - 4.35

Exhaust Stem Diameter

.3396 - .3402

Intake Stem Diameter

.3408 - .3413

Exhaust Head Diameter


Intake Head Diameter


Exhaust Face Angle

45 deg. 30 sec

Intake Face Angle

45 deg. 30 sec.

Exhaust Clearance

.015 hot 

Intake Clearance

.015 hot


Parts Books & Service Manuals

*Manuals and parts books are not owned by Solid Lift Parts inc. and are presented for reference purpose only.