OE Quality
60-Day Returns

Standard Ignition VVT545 Engine Variable Valve Timing (VVT) Sprocket - Exhaust (Right)
Overview of Standard Ignition VVT545 Engine Variable Valve Timing Sprocket
The Standard Ignition VVT545 is a precision-engineered engine variable valve timing sprocket designed specifically for Infiniti FX50 and QX70 models. This crankshaft gear component ensures accurate timing control for optimal engine performance and efficiency.
- Engine variable valve timing sprocket for Infiniti FX50 and QX70
- Durable metal gear material for long-lasting use
- Crankshaft gear type with 46 teeth and 4 timing marks
- Inside diameter of 1.13 inches (28.702 mm) with keyway notch
- Single mounting hole with 0.46 inch (11.684 mm) lug hole diameter
- Thickness of 0.32 inches (8.128 mm) and tooth width of 0.32 inches (8.128 mm)
Detailed Product Description
The Standard Ignition VVT545 sprocket is crafted from metal to provide reliable durability under demanding engine conditions. Featuring a crankshaft gear type with 46 teeth and 4 timing marks, this sprocket facilitates precise variable valve timing adjustments essential for the Infiniti FX50 and QX70 engines. The sprocket includes a keyway notch to ensure proper alignment during installation. Its single mounting hole and lug hole diameter of 0.46 inches (11.684 mm) allow secure attachment to the crankshaft. With an outside diameter of 3.56 inches (90.424 mm) and a thickness of 0.32 inches (8.128 mm), the sprocket fits accurately within the valve train components of the specified Infiniti models.
Applications and Problem Solving
- Restores proper variable valve timing function in Infiniti FX50 and QX70 engines
- Resolves timing chain or sprocket wear issues affecting engine performance
- Eliminates engine misfires or rough idling caused by faulty VVT sprockets
- Prevents timing-related engine damage by maintaining accurate valve timing
- Supports smooth engine operation and fuel efficiency
Installation Notes and Tips
Installation of the Standard Ignition VVT545 sprocket requires careful alignment of the keyway notch with the crankshaft key to ensure correct timing. It is important to verify the timing marks on the sprocket align with the engine’s timing chain or belt marks. Since hardware is not included, use existing mounting bolts or appropriate replacements. Professional installation or consultation with a qualified mechanic is recommended to maintain engine timing accuracy and avoid damage.
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable fit and function for Infiniti FX50 and QX70 vehicles. While specific warranty details for part number VVT545 may vary, Standard Ignition typically offers limited warranties covering defects in material and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | VVT545 |
| Functions | Engine Variable Valve Timing Sprocket |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | INFINITI | QX70 | 5.0L | V8 | Exhaust (Right) | |
| 2014 | INFINITI | QX70 | 5.0L | V8 | Exhaust (Right) | |
| 2013 | INFINITI | FX50 | 5.0L | V8 | Exhaust (Right) | |
| 2012 | INFINITI | FX50 | 5.0L | V8 | Exhaust (Right) | |
| 2011 | INFINITI | FX50 | 5.0L | V8 | Exhaust (Right) | |
| 2010 | INFINITI | FX50 | 5.0L | V8 | Exhaust (Right) | |
| 2009 | INFINITI | FX50 | 5.0L | V8 | Exhaust (Right) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.