Daihatsu Hijet Oil, Air & Fuel Filters - S100, S110 Models - 1994-1998
Air elements, oil filters, fuel filters, level sticks and cleaner lids for the Hijet S100/S110 family - plus tune-up kits matched to each EF engine code.
One collection for the Daihatsu Hijet S100/S110 family's filter service: air cleaner elements and lids, oil filters and level sticks, fuel filters for trucks and vans, and complete tune-up kits keyed to the EF engine codes.
Match body style, engine code and build date before ordering.
Identify the truck first; every fitment split on this page follows from it.
These trucks did not share one parts list - the air element comes in three shapes, trucks and vans carry different fuel filters, carbureted and injected engines take different kits, and even the oil level stick changes by build month.
Identify the truck first; each section below shows you how.
Find Your Truck
Start with the exact chassis model - some listings fit the S110P only - then four more things decide every fitment on this page: the body style, the engine code, the fuel system, and the build date. The identifiers read straight off the identification plate; the build date comes from your registration or title - or send us the chassis number and we confirm it for you.
| Check | Where you read it | What it decides here |
|---|---|---|
| Truck or van - and the exact model | CHASSIS NO. - S100P/S110P is a pickup, S100V/S110V a van; match the exact model each listing names | Air element shape, which fuel filter assembly fits - and several kits list the S110P only |
| Engine code | ENGINE line - EF-CS or EF-NS (carbureted), EF-ES (injected), EF-TS (turbo); later EF-GS, EF-GZ, EF-ZS appear on some listings | Which tune-up kit fits, and the oil specification |
| Carbureted or injected | Follows from the engine code above | Which fuel filter you need and how the system is depressurized for service |
| Turbo or not | EF-TS is the turbo engine | Element shape on vans, oil grade, and a shorter oil interval |
| Build date | Registration or title paperwork - or ask us with your CHASSIS NO. | Oil level sticks split at 12/1995, and several kits are listed by date range |
Not sure what you are reading? Send the full CHASSIS NO. with your order and we confirm fitment before anything ships.
Choose Your Parts
Six product families live in this collection. Match the family to what your truck needs, then match the listing to the configuration you confirmed above.
| Family | What it covers | Match it by |
|---|---|---|
| Air filter elements | Cylindrical, flat-panel and round elements across the range | Body style and engine - three different shapes |
| Air cleaner lids | Replacement housing lids, trucks 1994-2014 | Body style; listing states the fit |
| Oil filters | The spin-on filter for S100P/S110P trucks | One filter serves the family - confirm engine on the listing |
| Oil level sticks | Two sticks split by build month | Build date: to 12/1995, or 12/1995-03/1997 |
| Fuel filters | Carbureted truck filter (EF-CS, EF-NS) and the genuine van unit (EF-NS) | Truck vs van, then engine code |
| Kits | 3-piece filter kits, 6- to 10-piece tune-up kits, ignition and timing belt kits | Engine code first - see the table below |
Which kit fits your engine?
| Your engine | Fuel system | Kits in this collection |
|---|---|---|
| EF-CS | Carburetor | 3-piece filter kit (shared EF-CS / EF-NS) |
| EF-NS | Carburetor | 3-piece filter kit · 6- and 10-piece tune-up kits · timing belt kits · ignition kits |
| EF-ES | EFI | 6-piece kit (truck, shared EF-TS / EF-ES) · 10-piece kits (separate truck and van listings) · ignition kit |
| EF-TS | Turbo EFI | 6-piece tune-up kit (truck, shared EF-TS / EF-ES) |
| EF-GS | See listing | 9-piece tune-up kit |
| EF-GZ / EF-ZS | See listing | 6-piece tune-up kit |
Match the engine code first, then the exact chassis model (some kits are S110P-only), the body style and the listing's date range - several EF-NS kits are split by build date. A second 3-piece filter kit is listed for S110P trucks 1994-1998 without the carburetor restriction - check that listing if your truck is injected. For EF-GS, EF-GZ and EF-ZS the listing itself is the fitment reference; those codes sit outside this manual's coverage.
Oiwa guidance: catching up on deferred maintenance? One kit for your engine code covers the set in a single order - confirm the listing's body style and date range and the match is done.
Inspection & Service
The factory schedule treats inspecting a part and replacing it as different jobs on different clocks. The table below keeps them apart - inspection tells you whether a part is still serving; the replacement interval retires it regardless.
| Item | Factory inspection | Factory replacement |
|---|---|---|
| Air cleaner element | Condition checked - and cleaned - on the periodic inspection schedule, from 12 months (private use) | Every 40,000 km |
| Oil filter | - | Every 10,000 km |
| Engine oil (EF-NS, EF-ES) | Level checked between services | Every 10,000 km or 6 months |
| Engine oil (EF-TS turbo) | Level checked between services | Every 5,000 km or 6 months |
| Fuel filter | Checked for leaks with the tank and hoses | Every 50,000 km |
| Fuel hoses | Checked for cracks and deterioration | Every 4 years |
Source: Daihatsu factory service manual for the S100/S110 family. Intervals are the factory's; drive severity is not factored.
Practical service guidance: on the EF-NS and EF-ES the oil change and the oil filter share the same 10,000 km clock, which makes them easy to book together; the EF-TS turbo changes its oil at 5,000 km while its filter still runs to 10,000 km. Put the air element and fuel filter on the same calendar so nothing silently runs past its interval.
Air Cleaner & Element Types
The factory fitted three different air cleaner elements across the range, and the shape follows the body style and engine - a cylindrical element for trucks, a flat panel for turbocharged vans, and a round element for vans without the turbo. They do not interchange; identify the truck before ordering.
Changing the element starts at the housing - the factory view above shows it in the engine bay, and on the EF-NS the vacuum motor sits right on it. Find it on your vehicle before you start. Cracked or missing lid? Air cleaner lids are stocked separately.
Fuel System Layouts
Trucks and vans do not share a fuel filter. The assemblies differ, the mounting differs, and carbureted trucks run a different filter again from the injected models. In this collection that splits into a carbureted truck filter (EF-CS, EF-NS) and a genuine van unit (EF-NS). Injected trucks and vans also carry different EFI filter units - on those, the banjo-bolt washers are single-use. On the injected system the flow runs tank → in-tank pump → fuel main → filter → delivery pipe, with the return and canister lines closing the loop - so the filter you are buying sits mid-stream, not at the tank.
Slide the diagram sideways to see the whole system →
Slide the diagram sideways to see the whole system →
Troubleshooting
A symptom is an entry point, not a diagnosis. The checks below are the factory's own procedures from this manual - pairing them with what you notice is our practical routing, so start where it fits and let the check decide.
| What you notice | Factory check |
|---|---|
| Fuel smell, or wet spots near the tank | Check the tank, hoses and fuel filter for leaks, and the hoses for cracks and deterioration - and remember hoses have a 4-year replacement interval |
| Dusty roads lately, or the element is due its check | Pull the air element and inspect it for dirt and damage; the factory check includes cleaning it |
| Not sure the oil level is right | Engine stopped, on level ground: pull the gauge, wipe it, reinsert, and read - then check the oil's contamination while you are there |
| Reading the level stick | The oil belongs between the gauge's two round holes - below the lower hole means top up |
| Just changed a fuel filter | Run the pump for 8 seconds with the check-terminal jumper and watch every joint for seepage - see Installation & Service |
The level stick is the cheapest diagnostic tool on the truck. Engine stopped, level ground, wipe and re-dip - a habit worth keeping after every filter change.
Installation & Service
Oil filter
The factory pulls the old filter with cap wrench SST 09228-87201-000 - it threads onto the union on the block.
Wipe a light coat of clean engine oil onto the new filter's gasket, spin it on by hand until the gasket seats, then take it a further ¾ turn with the cap wrench - no more. Start the engine and check for leaks, then stop it and re-check the level.
Fuel filter
On injected engines, depressurize first: pull the fuel pump relay, run the engine until it stops, refit the relay - the relay sits in a different place on trucks and vans (the factory shows each in figures SS1E1041 and SS1E1052). Hold the filter at its 19 mm flats to crack the union, keep a rag under the joint, and never reuse the gaskets or the marked banjo washers - they are single-use. After fitting, jumper the check terminals TE1-E1 (SST 09991-87705-000) so the pump runs for 8 seconds; watch every joint for seepage. Carb trucks (EF-NS per the manual): relieve pressure by opening the tank cap.
Specifications
| Engine oil | Specification |
|---|---|
| EF-NS, EF-ES | SAE 5W-30, API SE |
| EF-TS (turbo) | SAE 10W-30, API SF |
| Quantity - oil change only | 2.7 L (2.9 US qt) |
| Quantity - with filter change | 3.1 L (3.3 US qt) |
A filter change takes 0.4 L (about half a US quart) more oil - buy accordingly.
| Tightening point | Torque (kg-cm) |
|---|---|
| Oil filter union x cylinder block | 400-500 |
| Oil drain plug | 200-300 |
| EF-TS: filter bracket x block | 156-234 |
| EF-TS: turbo oil inlet pipe x bracket | 200-300 |
| Fuel pipe union | 400±50 |
| Fuel banjo (marked joint, single-use washers) | 100±10 |
Factory workshop values from the S100/S110 service manual torque tables.
Factory Notes
One boundary in the source worth knowing: the factory manual has no dedicated fuel-filter removal section for the carbureted EF-NS - its fuel-filter procedure (15-4) covers the injected EF-ES and EF-TS. The carbureted guidance on this page comes from the manual's EF-NS carb note (relieve pressure by opening the tank cap), and everything else printed here for carb trucks stays within what that note supports.
Where can I buy Daihatsu Hijet filters in the United States?
Oiwa Garage supplies Daihatsu Hijet filters and filter kits from our California warehouse. Availability varies by part, so check the individual product listing. Not sure you selected the right parts? Add your complete CHASSIS NO. at checkout and we will verify fitment before shipping.
Our 100% Fitment Guarantee
Add your VIN or chassis number at checkout and we verify the fitment of every part in your order before anything ships. We check your full chassis code, the ENGINE line on the identification plate (EF-CS, EF-NS, EF-ES, EF-TS, EF-GS, EF-GZ or EF-ZS), whether it is a truck or a van and carbureted or injected, and for level sticks the build date. If anything does not match your truck, we contact you before dispatch. If something arrives wrong, we exchange it or refund you in full. No hassle, no runaround.
Contact Our Fitment Specialistsor text us directly at 562-661-8862
Fitment verified by the Kei Truck specialists at Oiwa Garage · Collection description updated August 2026.
