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10-Tooth vs. 12-Tooth Pinion Drive - NSM1521
Possible visual discrepancy between NAPA Starter Motor and OE. NSM1521 has a 12-tooth pinion...![](https://napaautoparts.eu/core-assets/uploads/2024/02/Oil-Colour-Myths-Technical-Guide-Banner.png)
Oil Colour and Associated Myths
Committed to quality, NAPA partnered with Valvolineā¢ Global Operations to develop a range of...![](https://napaautoparts.eu/core-assets/uploads/2023/11/image-2.png)
NAPA Block Exemption Certificate
The products supplied by NAPA are complying with the requirements of Vehicle Block Exemption...![](https://napaautoparts.eu/core-assets/uploads/2023/11/image-2.png)
NAPA Lubricants Compliance Statement
NAPA Lubricants Compliance Statement![](https://napaautoparts.eu/core-assets/uploads/2022/12/Feature-and-Letterbox-Images-Tech-Bulletin3.png)
KNOW HOW - TECHNICAL BULLETIN - TB-NFO-01
Fitment Challenges with Oil Filters N.B. Important InformationĀ Please be aware of the differently...![](https://napaautoparts.eu/core-assets/uploads/2022/06/Braking-Web-Tile.jpg)
Know How - Expert Edition - Brake Fluid Testing
It can be easy to forget about and neglect your brake fluid, but doing so can result in a total braking failure. For a better understanding of why, how, and when you should be testing (and changing) brake fluid, look no further than NAPA Know How.
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Know How - Expert Edition - Starter Motor Diagnosis
With MATT MASTERS Rounding out his spotlight series on rotating electrics, Matt Masters applies...![](https://napaautoparts.eu/core-assets/uploads/2021/07/Feature-and-Letterbox-Images-1-scaled-e1627055659858.jpg)
Know How - Expert Edition - How Do Starter Motors Work?
With MATT MASTERS Matt Masters returns for another Expert Edition piece on the ins...![](https://napaautoparts.eu/core-assets/uploads/2021/10/Feature-and-Letterbox-Images-Tech-Bulletin-scaled-e1634724889431.jpg)
Know How - Technical Bulletin - TB-NST-03
FITMENT CHALLENGES – WISHBONES AND BALL JOINTS AUDI TT 98-06 When replacing the lower...![](https://napaautoparts.eu/core-assets/uploads/2021/07/Feature-and-Letterbox-Images-1-scaled-e1627055659858.jpg)
Know How - Expert Edition - Alternator Diagnosis
With MATT MASTERS Matt Masters is back for the next installation in his rotating...![](https://napaautoparts.eu/core-assets/uploads/2021/07/Feature-and-Letterbox-Images-1-scaled-e1627055659858.jpg)
Know How - Expert Edition - How Do Alternators Work?
With MATT MASTERS Resident NAPA expert Matt Masters makes his Expert Edition debut this...![](https://napaautoparts.eu/core-assets/uploads/2021/08/Feature-and-Letterbox-Images-scaled-e1628495463866.jpg)