BOSCH 7421
BOSCH part number 7421 is a spark plug in the Ignition system. This catalog matches it to 2 year-and-engine configurations from 2005 to 2009.
Verified fitment includes 2009 Hummer H3 5.3L V8 ; 2005 Hummer H2 6.0L V8 . See every vehicle this part fits.
Frequently Asked Questions
What is BOSCH 7421?
BOSCH part number 7421 is a spark plug with published application data for 2 vehicle configurations from 2005 to 2009. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does BOSCH 7421 fit?
This catalog matches 7421 to 2 year-and-engine configurations from 2005 to 2009. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is BOSCH 7421 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. BOSCH 7421 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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