Maintain reliable engine sealing and prevent oil leaks with this Genuine Nissan Harmonic Front Crankshaft Seal, designed for Nissan Patrol GQ and GU models fitted with RD28 and RB30 engines. This OEM front main seal is installed at the front of the engine behind the harmonic balancer and is responsible for sealing the crankshaft as it exits the engine block.

Over time, crankshaft seals can harden, shrink, or wear due to heat cycles, engine vibration, age, and oil exposure. A failing seal can lead to oil leaks around the harmonic balancer area, reduced engine oil levels, and potential long-term engine damage if left untreated.

Manufactured to genuine Nissan specifications, this direct-fit replacement ensures accurate sealing, long-lasting durability, and dependable performance in both on-road and off-road Australian driving conditions.

Features & Benefits

• Genuine Nissan OEM seal for exact fitment and reliability
• Designed for Nissan Patrol GQ and GU RD28 & RB30 engines
• Seals crankshaft at the front of the engine behind harmonic balancer
• Helps prevent engine oil leaks and loss of oil pressure
• Protects engine components from contamination and damage
• Durable oil and heat-resistant rubber construction
• Direct replacement with no modifications required
• Suitable for off-road, towing, and heavy-duty use
• Maintains proper engine performance and reliability
• Sold individually

Vehicle Fitment

Suitable for:

• Nissan Patrol GQ Y60 RD28 RB30
• Nissan Patrol GU Y61 RD28 RB30

Please check your vehicle specifications before purchasing. Contact us with your VIN details if you require assistance confirming compatibility.

Common Signs You Need a Replacement Crankshaft Seal

• Oil leaking from behind harmonic balancer
• Oil buildup on front of engine
• Low engine oil levels
• Contaminated engine bay or belt area
• Seal visible as hardened, cracked, or worn

Replacing a worn front crankshaft seal helps prevent oil loss, protects internal engine components, and ensures reliable long-term engine performance.