March 28, 2026 David Lacoursière

Hino Box Truck Parts and Maintenance Guide: 155, 195, 238, 258, 268, 338, and 358 Models

Hino box trucks are the backbone of local delivery operations across the United States. The Hino 155, 195, 238, 258, 268, 338, and 358 models handle everything from food distribution to furniture delivery, and their Toyota-derived reliability keeps maintenance costs lower than most competitors in the medium-duty class. But even the most reliable trucks need parts eventually.

This maintenance guide covers the most common replacement parts for Hino box trucks, recommended service intervals, and where aftermarket parts can save you significant money compared to dealer pricing.

Hino Box Truck Headlights: The First Thing That Goes

Headlights on Hino trucks degrade faster than most fleet managers expect. The combination of urban driving (road debris from close following distances), frequent washing (chemical exposure from truck washes), and temperature cycling (engine heat on one side, cold air on the other) breaks down the headlight lens coating within 3-5 years.

Hino uses different headlight assemblies depending on the model series. The smaller trucks (155, 165, 195) share a common headlight design, while the larger models (238, 258, 268, 338, 358) use a different, wider assembly. We carry both: the Hino 155/165/195 headlight assembly and the Hino 238-338 headlight assembly. For fleets upgrading to projector-style headlights for improved night visibility, the Hino 238-358 projector headlight assembly is a direct-fit upgrade.

Replacing headlights on a Hino is straightforward — typically 20-30 minutes per side with basic hand tools. The assemblies bolt in from the front and use a single wiring connector.

Grilles and Front End Protection

The Hino grille takes a beating in urban environments. Parking lot bumps, loading dock approaches, and road debris all damage the grille over time. A cracked or broken grille isn’t just cosmetic — it reduces airflow to the radiator and exposes the charge air cooler to debris.

Our Hino 155/165/195 front grille is a direct OEM replacement that matches the factory mounting points. The Hino grille is a single-piece design that snaps and bolts into the front header panel — replacement takes about 15 minutes with no special tools.

Bumpers: Protecting the Front End

Hino trucks use a painted steel bumper that wraps around the front corners. These bumpers see constant contact with loading docks, and even careful drivers accumulate dents and scrapes over time. The Hino 155/165/195 front bumper replaces the entire front bumper assembly with a fresh OEM-spec unit.

When replacing the bumper, inspect the mounting brackets and bumper bolts for damage or corrosion. Rusty or bent brackets will prevent the new bumper from sitting correctly and can lead to rattling and misalignment. Replace any damaged hardware during the bumper swap.

Front Panels, Corner Panels, and Side Steps

Hino’s cab-over design puts several body panels in vulnerable positions. The front panel (between the bumper and grille), corner panels (where the front meets the sides), and side steps all see regular damage in commercial service.

Our Hino body component lineup includes the front panel, corner panel, and side step — all designed as drop-in replacements for the 155/165/195 series. These parts use the same mounting points and hardware as the factory components.

Side steps deserve special attention because they’re a safety-critical component. A damaged or loose step is a slip-and-fall liability. DOT inspectors also check step condition during roadside inspections. Replacing a worn step is inexpensive insurance against both injury and violation citations.

Engine Maintenance: Hino J05E and J08E

Hino trucks use their own Hino-manufactured diesel engines — the J05E (4.7L, in 155/195 models) and J08E (7.7L, in 238-358 models). These engines are known for reliability, but they require consistent maintenance to deliver their expected 500,000+ mile service life.

Oil change interval: Every 15,000 miles or 6 months, whichever comes first. Use 10W-30 CK-4 rated oil and a quality oil filter that meets Hino specifications. See our oil filter guide for recommendations.

Fuel filter replacement: Every 30,000 miles. The Hino fuel system is sensitive to water contamination, so drain the water separator at every oil change.

Air filter replacement: Inspect every 15,000 miles, replace when the restriction indicator shows red or at 30,000-mile intervals in normal operating conditions. Urban environments with heavy dust or construction debris may require more frequent replacement.

DPF cleaning: Every 150,000-200,000 miles. The Hino DPF system performs active regeneration automatically, but accumulated ash eventually restricts exhaust flow and requires professional cleaning.

Vacuum Pump and Brake System

Unlike most medium-duty trucks that use air brakes, some Hino models (particularly the 155 and 195) use hydraulic brakes with a vacuum-assisted brake booster. The Hino 195/155 vacuum pump is a critical component in this system — if it fails, brake assist is lost and stopping distances increase dramatically.

Signs of vacuum pump failure include a hard brake pedal, longer stopping distances, and a hissing sound from the engine compartment during braking. Don’t delay vacuum pump replacement — this is a safety-critical repair.

For the larger Hino models with air brakes (238 and up), regular brake maintenance includes shoe replacement, drum inspection, slack adjuster checks, and air dryer servicing.

Electrical System and Battery Maintenance

Hino box trucks run on either one or two Group 31 batteries, depending on the model and whether it has a liftgate. Liftgate-equipped trucks draw heavily from the batteries during delivery stops, which shortens battery life significantly. Replace batteries every 2-3 years on liftgate trucks versus 3-5 years on standard configurations.

Common electrical issues on Hino trucks include corroded battery terminals (especially in salt-belt states), failed alternators, and body electrical problems related to aftermarket liftgate or refrigeration unit wiring. For battery selection guidance, see our truck battery guide.

Hino Preventive Maintenance Schedule

Every 15,000 miles: Oil and filter change, tire inspection, brake inspection, fluid top-off, belt inspection, headlight/lighting check

Every 30,000 miles: Fuel filter replacement, air filter inspection/replacement, coolant test, transmission fluid check, wheel bearing inspection

Every 60,000 miles: Coolant flush, brake fluid replacement (hydraulic brake models), U-joint inspection, shock absorber inspection

Every 150,000 miles: DPF cleaning, turbocharger inspection, injector inspection, major brake service

Following this schedule keeps repair costs predictable and prevents the expensive breakdowns that come from deferred maintenance. Most Hino dealers and independent shops can perform these services, but buying parts directly and having them installed saves 30-50% versus dealer-supplied parts.

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