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More Information for BOSCH 7581
BOSCH 7581
  • Tapered, v-profile nickel chromium ground electrode improves starting in cold weather and increased fuel ignitability
  • Nickel-plated rolled threads provide anti-seize properties and corrosion protection
  • Metal glass fused resistor for maximum interference suppression
  • Angular, five-ribbed insulator design prevents misfire due to current leakage

Spark Plug Type Performance Differences

Alternate/OEM Part Number(s): HR9HCO

Closeout Inventory Warranty Information
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

BOSCH Regular Inventory Warranty Information
Alternators & Starters w/ Part Number not ending in "N": 24 months; Alternators & Starters w/ Part Number ending in "N": Lifetime Warranty for non-commercial passenger vehicles; Spark Plug Wire Sets: Lifetime; Wiper Products: 30 days; All other product lines: 12 months.