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Baldwin PA4443 Air Filter
Overview of Baldwin PA4443 Engine Air Filter
The Baldwin PA4443 engine air filter is designed for specific Infiniti and Nissan models, providing reliable air filtration to maintain engine performance. This filter is compatible with Infiniti G35, EX35, G37, QX50, and Nissan 350Z and 370Z vehicles.
- Compatible with Infiniti G35, EX35, G37, QX50 and Nissan 350Z, 370Z
- Dimensions: 7 1/8" length x 6 5/8" width x 1 5/16" height (181mm x 168.3mm x 33.3mm)
- Replaces Nissan part number 16546-JK20A
- Engine air filter designed for efficient air and fuel delivery
- Durable construction to meet OEM specifications
Detailed Product Description
The Baldwin PA4443 engine air filter is engineered to fit a range of Infiniti and Nissan models, including the Infiniti G35, EX35, G37, QX50, and Nissan 350Z and 370Z. With precise dimensions of 7 1/8 inches in length, 6 5/8 inches in width, and 1 5/16 inches in height (181mm x 168.3mm x 33.3mm), this filter ensures a proper seal and fit within the air intake system. It replaces the Nissan OEM part number 16546-JK20A, providing a direct replacement option that maintains the original equipment standards for air filtration and engine protection.
Applications and Common Issues Addressed
- Prevents engine damage caused by dust and debris entering the intake system
- Helps maintain optimal engine performance and fuel efficiency
- Reduces the risk of clogged air passages that can lead to reduced power
- Supports proper air-fuel mixture for combustion stability
- Minimizes engine wear due to contaminants
Installation Notes and Tips
- Ensure the engine is off and cool before replacing the air filter
- Remove the air filter housing cover carefully to avoid damage
- Clean the air filter housing before installing the new Baldwin PA4443 filter
- Verify the filter is seated properly to prevent air leaks
- Consult the vehicle’s service manual for specific instructions related to Infiniti G35, EX35, G37, QX50, and Nissan 350Z, 370Z models
Quality Assurance and Warranty
Baldwin engine air filters are manufactured to meet or exceed OEM specifications, ensuring consistent filtration performance and durability. The PA4443 part number undergoes rigorous quality control to provide reliable engine protection. Warranty coverage details can be obtained from Baldwin or authorized distributors, typically covering defects in materials and workmanship.
| Brand | Baldwin |
| Part Number | PA4443 |
| Fits | "Infiniti G35, EX35, G37, QX50; Nissan 350Z, 370Z" |
| Height | 1 5/16 |
| Height (mm) | 33.3 |
| Length | 7 1/8 |
| Length (mm) | 181 |
| Replaces | Nissan 16546-JK20A |
| Width | 6 5/8 |
| Width (mm) | 168.3 |
This part fits 37 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2019 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2018 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2017 | INFINITI | QX50 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2017 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2016 | INFINITI | QX50 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2016 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2015 | INFINITI | Q40 | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2015 | INFINITI | Q60 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2015 | INFINITI | QX50 | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2015 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2014 | INFINITI | Q60 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2014 | INFINITI | QX50 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2014 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2013 | INFINITI | EX37 | 3.7L | V6 | N/A | OE Number : 16546jk20a | |
| 2013 | INFINITI | G37 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2013 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2012 | INFINITI | EX35 | 3.5L | V6 | N/A | OE Number : 16546JK20A | |
| 2012 | INFINITI | G25 | 2.5L | V6 | N/A | OE Number : 16546JK20A | |
| 2012 | INFINITI | G37 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2012 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2011 | INFINITI | EX35 | 3.5L | V6 | N/A | OE Number : 16546JK20A | |
| 2011 | INFINITI | G25 | 2.5L | V6 | N/A | OE Number : 16546JK20A | |
| 2011 | INFINITI | G37 | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2011 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546JK20A | |
| 2010 | INFINITI | EX35 | 3.5L | V6 | N/A | OE Number : 16546-JK20A | |
| 2010 | INFINITI | G37 | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2010 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2009 | INFINITI | EX35 | 3.5L | V6 | N/A | OE Number : 16546-JK20A | |
| 2009 | INFINITI | G37 | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2009 | Nissan | 350Z | 3.5L | V6 | N/A | OE Number : 16546-JK20A | |
| 2009 | Nissan | 370Z | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2008 | INFINITI | EX35 | 3.5L | V6 | N/A | OE Number : 16546-JK20A | |
| 2008 | INFINITI | G35 | 3.5L | V6 | N/A | OE Number : 16546-JK20A | |
| 2008 | INFINITI | G37 | 3.7L | V6 | N/A | OE Number : 16546-JK20A | |
| 2008 | Nissan | 350Z | 3.5L | V6 | N/A | OE Number : 16546-JK20A | |
| 2007 | INFINITI | G35 | Sedan | 3.5L | V6 | N/A | OE Number : 16546-JK20A |
* 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.