Fuel Tank Filler Cap with Fuel-Resistant Rubber (NBR/FKM) and Key-Operated Lock for Isuzu CXZ CYZ 6WF1 - OEM Standard Direct Replacement

The Fuel Tank Filler Cap (OEM Numbers: 8-98108595-0 / 8981085950) is a premium-quality, direct replacement sealing component designed for Isuzu CXZ and CYZ series heavy-duty trucks equipped with the 6WF1 diesel engine. This locking fuel cap seals the fuel tank to prevent fuel evaporation, spillage, and contamination while deterring fuel theft.

• OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable sealing
• Locking Security: Integrated key lock prevents fuel theft and unauthorized opening (comes with two keys)
• Tight Seal: Fuel-resistant rubber gasket provides vapor-tight seal, reducing fuel evaporation and preventing water/dirt ingress
• Durable Construction: Corrosion-resistant materials withstand fuel exposure and weather conditions
• Restores Fuel System Integrity: Eliminates fuel odor, evaporation loss, and check engine light (EVAP system)
• Direct Replacement: Simple twist-on installation - matches OE cap
• Cost-Effective: Affordable alternative to genuine OEM caps

This fuel tank filler cap is specifically designed for Isuzu CXZ and CYZ trucks with 6WF1 engine.

• ISUZU CXZ (CXZ51, CXZ81, heavy-duty 6×4 or 8×4 configurations)
• ISUZU CYZ (CYZ51, CYZ52, heavy-duty trucks)
• May also fit other Isuzu heavy trucks with similar fuel filler neck - verify compatibility

• 6-Cylinder, Inline Diesel, Turbocharged
• Displacement: 9.8L (9839cc)
• Application: CXZ, CYZ, EXZ series

1. Remove the old fuel tank cap (turn counterclockwise or twist bayonet style and pull off)
2. Inspect the fuel filler neck for damage, rust, or debris. Clean if necessary
3. Unlock the new cap (if locked) using the provided key
4. Install the new cap - align with the filler neck threads or bayonet lugs. Turn clockwise until it clicks (or stops). Lock the cap by turning the key
5. Remove the key - ensure the key can be removed only when locked (typical design)
6. Test the seal - after driving a short distance, check for fuel odor or loose fit
7. Keep the spare key in a safe location (e.g., glove box or key box)

• Material Verification: Plastic/metal composition and sealing rubber tested
• Dimensional Inspection: Cap diameter, thread/bayonet profile, and gasket thickness verified
• Leak Test (Pressure/Vacuum): Sample caps tested for seal integrity
• Lock Function Test: Each cap's key cylinder cycled to ensure smooth operation
• Key Uniqueness: Random key codes for security
• Gasket Material Test: Rubber hardness and fuel immersion test
• Visual Inspection: 100% checked for scratches, burrs, or missing keys
• Packaged Safely: Cap sealed in poly bag with keys attached, boxed to prevent scratching

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea

For pricing, availability, or bulk purchase of the Fuel Tank Filler Cap 8-98108595-0 For Isuzu CXZ CYZ 6WF1 8981085950 Isuzu Truck Parts, please contact our sales team for a competitive quote and expert technical support.