Hino F21c Engine Manual
Electrical diagnostics:
: Set cylinder #1 to Top Dead Center (TDC) on the compression stroke before adjusting. 2. Lubrication & Capacities
If you maintain or repair a Hino F21C engine, . Obtain the genuine Hino F21C Engine Manual – either the factory paper version or a verified digital reproduction. It will pay for itself by preventing misdiagnosis, incorrect repairs, and premature engine failure.
Removes suspended soot and preserves lubricating film strength. Replace primary/secondary fuel filters. Hino F21c Engine Manual
The Hino F21C is a legendary, heavy-duty diesel engine produced by Hino Motors, primarily known for powering large commercial vehicles like the and Hino S'elega bus. One of its most notable features is its V10 configuration , making it a high-torque, high-horsepower powerhouse.
Locate the metal plate stamped on the engine block. Note the full model code (e.g., F21C-A, F21C-B) to match the correct manual supplement.
Notes:
| Specification | Value | | --- | --- | | | Diesel, 4-cycle, 8-cylinder, V-type (V8), Overhead Valve, Water-cooled, Direct Injection | | Aspiration | Natural aspiration | | Displacement | 20.781 liters (1,268 cu.in.) | | Bore & Stroke | 150 mm × 147 mm (5.91 in. × 5.79 in.) | | Compression Ratio | 19.2:1 | | Firing Order | 1-8-4-2-7-3-6-5 (Cylinder numbers counted from the timing gear side) | | Maximum Power Output | 400 metric horsepower (290 kW) or 360–430 horsepower | | Maximum Revolution (Full Load) | 2,200 r/min | | Idling Revolution | 500 - 550 r/min | | Direction of Rotation | Counterclockwise (viewed from flywheel) | | Dry Weight | Approx. 1,300 kg (2,866 lb) |
| Category | Specification | Details | | :--- | :--- | :--- | | | Hino F21C | | | Configuration | 90° V10 | 60° or 90° V-angle common in heavy-duty V10s. | | Displacement | 20,780 cc (20.78 liters) | ~1268 cubic inches. | | Bore x Stroke | 132 mm x 152 mm | Under-square, long stroke for torque. | | Compression Ratio | 17.5 : 1 | Common for direct-injection diesel. | | Max. Horsepower | 400 hp (298 kW) @ 2,200 rpm | Power varies by application. | | Max. Torque | 1,324 lb-ft (1,795 Nm) @ 1,400 rpm | ~1,795 Nm (estimated). | | Fuel System | Direct Injection / Common Rail | Unit injector common rail. | | Aspiration | Turbocharged & Intercooled | Enhances power and efficiency. | | Oil Capacity | 56.5 Liters (approx. 15 U.S. Gallons) | Standard sump; check manual. | | Engine Weight | 1,074 kg (2,367 lbs) | Dry weight, standard configuration. | | Coolant Capacity | 52 Liters (approx. 13.7 U.S. Gallons) | Engine only; add radiator capacity. | | Valve Train | Overhead Valve (OHV) | 4 valves per cylinder. |
Replace fuel filters every 15,000–20,000 km to protect the injection system. Safety Protocols: Electrical diagnostics: : Set cylinder #1 to Top
Requires precise torque-to-yield specifications to prevent catastrophic rod failure at high RPMs.
: The most reliable source is Hino itself. Hino Motors, a Toyota subsidiary, offers an official Online Service Information Subscription that includes a comprehensive database of Hino Engine Repair Manuals for model years 2005–2021 . This subscription grants access to 100% factory-authorized information, including:
