Specs, fluids & service · 1955–1960
Toyota Land Cruiser J20 / J25 (FJ25) specs, fluids and service intervals
The numbers you need in the garage, on one page: spec sheet, capacities and service intervals, wheels and tires, and the parts to order. Sourced from owners, specialists and the factory; tags marked confirm in manual haven't been checked against a factory source yet.
Spec sheet
| CHASSIS | J20 (FJ25 / FJ28; early B-engined trucks) |
|---|---|
| PRODUCTION | 1955–1960 (Japan) · 1959–1968 (Brazil) |
| LAUNCH | November 1955 (Toyota global) · August 1955 (Toyota UK) |
| ENGINE | F 3,878 cc OHV I6 (B 3.4 L to mid-1956) |
| OUTPUT | 105 PS net @ 3,200 rpm (FJ25) |
| TRANSMISSION | 4-speed manual |
| TRANSFER CASE | Single-speed, part-time 4WD |
| WHEELBASE | 2,285 mm (FJ25) · 2,430 mm (FJ28) |
| LENGTH × WIDTH × HEIGHT | 3,838 × 1,665 × 1,855 mm (FJ25) |
| CURB WEIGHT | 1,425 kg (FJ25) |
| BRAKES | Drums all round |
| US IMPORTS | 1 (1958) · 61 (1959) · 162 (1960), per IH8MUD registry |
By year
| YEARS | PLATFORM | ENGINE | OUTPUT | NOTES |
|---|---|---|---|---|
| 1955–1956 | B-engined J20 | B 3.4 L OHV I6 (petrol) | 85 PS (BJ figure) | Carried over from the BJ; Toyota dropped it from the J20 range in mid-1956. |
| 1955–1960 | FJ25 (short wheelbase) | F 3.9 L OHV I6 (petrol) | 105 PS net @ 3,200 rpm | 2,285 mm wheelbase; soft-top, hardtop and pickup bodies. The truck most collectors mean by 'FJ25.' |
| 1955–1960 | FJ28 (longer wheelbase) | F 3.9 L OHV I6 | 105 PS | 2,430 mm wheelbase; pickups, vans and the very rare FJ28L survivors. |
| 1960 | FJ35V (J30) | F 3.9 L OHV I6 | — | Four-door Gifu-bodied van on the 2,650 mm J20 chassis, built for nine months; Wikipedia says about 60 were made. |
| 1959–1961 | FJ25L (Brazil) | F 3.9 L OHV I6 | — | Toyota do Brasil's first local build, from May 1959. |
| 1962–1968 | TB25L / OJ31L / OJ32L (Bandeirante) | Mercedes-Benz OM324 3.4 L diesel | — | Brazilian 25-based trucks with Mercedes diesels, built until August 1968. |
Fluids, capacities & service intervals
Any FJ25 is now more than 65 years old, so assume nothing has been done and service everything. Toyota's capacities below are for the F engine as fitted to the 40 and 55 Series (compiled on IH8MUD from Toyota publications). The FJ25's own gearbox and transfer case aren't in that table, so check its figures in an FJ25 manual.
| ITEM | SPEC / CAPACITY | INTERVAL | NOTES & PARTS |
|---|---|---|---|
| Engine oil & filter | F engine: 7 L, API SD in Toyota's table · canister (cartridge) filter element, Toyota 04152-60060 | Baseline now; then per the owner's manual | Early F engines use a canister filter, not a spin-on. An IH8MUD member says the dealer element comes with its gasket and washer. Use a modern oil suited to a flat-tappet engine.OEM canister (cartridge) oil filter, 1958–3/69 (026-01A) · Specter Off-Road ↗ |
| Ignition: plugs, points, condenser | Short-reach plugs (Champion J8C / NGK B6S / ND W14-U per the IH8MUD FJ25 list) · points gap 0.018 in (Cruiser Corps, 1958–75 F) | Baseline now | Set timing with the octane adjuster after replacing points. Check that the moving-body vacuum advance works.Points and condenser combo, 1958–75 · Cruiser Corps ↗Octane adjuster cover (022-38A) · Specter Off-Road ↗ |
| Valve lash | Adjustable rockers · clearances confirm in manual | Check now | Same procedure as an early FJ40 F engine. New cork cover gasket.Valve cover gasket, 1958–74 F · Cruiser Corps ↗ |
| Coolant, thermostat & hoses | F engine: 15.2 L (Toyota's early table lists plain water; use ethylene-glycol coolant) | Flush now | FJ25 hose part numbers on IH8MUD: upper 90916-01019, lower hoses 90916-01021, thermostat 90916-03014.Thermostat, OEM/Aisin (1958–92) · Cruiser Corps ↗Bypass hose, 1958–8/87 (054-15A) · Specter Off-Road ↗ |
| Fuel filter & pump | Metal-bowl filter with element (Toyota 04234-30010 per the IH8MUD FJ25 list) · mechanical pump | Replace element now | Old fuel varnishes carburetors. Clean the bowl and blow out the lines before rebuilding the carb.Fuel pump, 1958–78 F engine (confirm fit) · Cruiser Corps ↗ |
| Gearbox & transfer case | Gear oil per FJ25 manual confirm in manual (Toyota's 40-series table specifies API GL-4 SAE 90 for its gearboxes and transfer case) | Baseline now | The FJ25 has a single-speed transfer case and a different four-speed from the 40-series J30/H41, so don't borrow the 40-series capacities.FJ25 drivetrain parts (search) · Specter Off-Road ↗ |
| Front & rear differentials | Hypoid gear oil confirm in manual (Toyota's 40-series table: API GL-5 80W-90, 2.5 L) | Baseline now | The FJ25 has a centered rear differential. IH8MUD says its rear axle isn't the same as an FJ40's centered axle, so don't assume parts swap. |
| Brake & clutch fluid | DOT 3 / SAE J1703 | Flush now | Two cast-iron master cylinders (brake and clutch). Look for weeping wheel cylinders on all four drums.Brake parts by fitment year · Specter Off-Road ↗ |
| Chassis grease, U-joints & wheel bearings | Chassis: moly lithium NLGI-2 · wheel bearings: lithium multipurpose NLGI-2 (Toyota 40-series table) | Grease now; repack wheel bearings now | The IH8MUD FJ25 list cross-references front inner bearings (Federal-Mogul 26820/26882), outer (BR2720/BR2788) and rear (Koyo R139B).Universal joints, FJ40/45 1958–73 (confirm FJ25 cap size) · Cruiser Corps ↗ |
| Belts | Fan belt, Toyota 90916-02008 (IH8MUD FJ25 list) · gear-driven camshaft, so no timing belt | Inspect now | The F engine drives its camshaft by gears. Toyota's 13523-60030 is listed as the steel replacement for the original fiber cam gear.Cooling parts by fitment year · Specter Off-Road ↗ |
Capability
| Curb weight | 1,425 kg (3,142 lb) FJ25, Toyota figure |
|---|---|
| Wheelbase | 2,285 mm (90.0 in) FJ25; FJ28 2,430 mm |
| Length × width × height | 3,838 × 1,665 × 1,855 mm FJ25, Toyota figure |
| Engine output | 105 PS net @ 3,200 rpm F 3,878 cc, Toyota figure |
| Low range | None Single-speed transfer case (Toyota) |
Wheels & tires
| Factory tire | 16-in six-lug steel wheels · 6.00-16 military-style tires (restored 1960 FJ25L on BaT) |
|---|---|
| Biggest tire · Stock | No forum consensus |
Open the Land Cruiser J20 / J25 (FJ25) in the tire fitment tool →
Common Land Cruiser J20 / J25 (FJ25) repairs
- Drum brake reline and adjustmentDIFFICULTY 2 / 5
- Master cylinder rebuild (brake and clutch)DIFFICULTY 3 / 5
- Water pump rebuildDIFFICULTY 3 / 5
- Ignition tune-up (points, condenser, short-reach plugs)DIFFICULTY 1 / 5
- Valve adjustment and valve cover resealDIFFICULTY 2 / 5
- Radiator re-core or replacementDIFFICULTY 2 / 5
- Carburetor and fuel-system refreshDIFFICULTY 2 / 5
Always confirm torque figures, fluids and capacities against the factory service manual for your VIN. See the disclaimer; some parts links are affiliate links.