HJ125-30E Filter

Tailored exclusively to the CG125 motorcycle’s engine system, the oil and air filters work in tandem to maintain engine health.

• Oil Filter: A spin-on or cartridge-type component made with a pleated cellulose or synthetic filter media. It is mounted on the CG125’s oil circuit, trapping metal shavings, sludge, and carbon deposits from engine oil to prevent abrasion of moving parts (e.g., crankshaft, connecting rod bearings). Its housing is made of high-impact plastic or metal, resistant to oil pressure and high temperatures (up to 120°C).

• Air Filter: A foam or paper-based filter housed in the CG125’s airbox. Its porous structure captures dust, sand, and road debris from incoming air, ensuring only clean air mixes with fuel in the combustion chamber—avoiding cylinder scoring or valve damage. The foam variant is washable (for repeated use), while the paper type is disposable, both matching the CG125’s air intake size for seamless fit.

Both filters are direct OEM-compatible, requiring no modifications for installation, and are optimized for the CG125’s 125cc single-cylinder engine’s low-to-medium operating load.

1. Engine Protection: The oil filter prevents abrasive particles from damaging engine bearings; the air filter stops debris from scratching cylinder walls—extending the CG125’s engine life by 30%+ with regular replacement.

2. Optimized Performance: Clean oil (from the oil filter) ensures smooth lubrication, while clean air (from the air filter) maintains proper fuel-air ratio—preserving the CG125’s original power and fuel efficiency.

3. Direct OEM Fit: Both filters match the CG125’s oil circuit ports (oil filter) and airbox dimensions (air filter), enabling tool-free or simple-tool installation for DIY maintenance.

4. Durable Materials: Oil filter media resists clogging from oil contaminants; air filter foam/paper withstands moisture and dust accumulation, ensuring reliable performance in urban or rural environments.

1. Routine Maintenance: Replaced every 1,000–2,000 km (oil filter) or 3,000–5,000 km (air filter) during CG125’s regular servicing to prevent engine wear.

2. Engine Repair: Used with CG125 engine repair kits (e.g., after piston/bearing replacement) to ensure the restored engine operates with clean oil and air.

3. Off-Road Use Upgrade: Washable foam air filters are ideal for CG125s used on dusty rural roads, as they can be cleaned and reused instead of frequent replacement.

4. Preventive Replacement: Replaces old, clogged filters (e.g., oil filter with sludge buildup, air filter with dust blockage) to fix symptoms like reduced power or increased oil consumption.