Maintain secure crankshaft clamping and prevent loosening of the harmonic balancer with this Genuine Nissan Harmonic Balancer Bolt Washer, designed for Nissan Patrol GQ Y60 and GU Y61 models fitted with RD28 and RB30 engines. This OEM washer sits behind the harmonic balancer bolt and ensures even load distribution and correct tightening force on the crankshaft pulley assembly.

Over time, the original washer can become worn, grooved, or damaged during engine servicing or removal of the harmonic balancer. If reused in poor condition, it may fail to maintain correct clamping force, which can lead to bolt loosening, vibration, harmonic balancer movement, and in severe cases, serious engine damage. Replacing it with a genuine Nissan component ensures proper torque retention and long-term reliability of the front crankshaft assembly.

Manufactured to Nissan factory specifications, this genuine washer provides high-strength steel construction, precise fitment, and durability under constant engine vibration and load. It is a direct replacement part requiring no modifications for installation.

Features & Benefits

• Genuine Nissan OEM part for precise fitment and reliable clamping performance
• Designed specifically for Nissan Patrol GQ Y60 & GU Y61 RD28 and RB30 engines
• Distributes load evenly across the harmonic balancer bolt
• Helps prevent bolt loosening and crankshaft pulley movement
• High-strength steel construction for durability under engine vibration
• Supports long-term reliability of the harmonic balancer assembly
• Direct replacement with no modifications required

Vehicle Fitment

Suitable for:

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

Please confirm compatibility before purchase or contact us with your VIN for assistance.

Common Signs of a Worn or Missing Washer

• Harmonic balancer bolt repeatedly loosening
• Engine vibration from front crankshaft area
• Visible wear or grooving on old washer
• Pulley movement or misalignment
• Previous engine work without replacing fasteners

Replacing this small but critical component helps maintain secure crankshaft assembly, prevent vibration-related failures, and ensure long-term reliability of your Patrol’s engine.