Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1
Bosch (4503) FGR7DQI Platinum IR Fusion Spark Plug, Pack of 1
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Bosch 4501 Spark Plug Popular Q&A
Q: How to Test Bosch Spark Plugs.
A: 1. Start the engine. It's important that the engine us running when you test the plugs so that you can see and hear the real-time effects of what's going on und... Read More »
Q: How Do I Gap Bosch Spark Plugs?
A: 1. Determine what the recommended spark plug gap is for your vehicle. You can use a workshop manual that will give you the factory specifications. You may also ... Read More »
Q: What is the average cost of Bosch Spark Plugs?
A: The average cost of Bosch Spark Plugs are approximately $10.00. Currently though, Amazon has them on sale for $5.88 each which is about half off so it seems lik... Read More »
Q: What bosch spark plug fits a 1990 Vanagon?
A: Our shop foreman recommends the Bosch W7DTCs for both the Digijet (1.9L) and the Digifant (2.1L) EFI systems. Originally, VW called for Bosch W7CC0, if I recall... Read More »
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