ACDelco Professional Platinum Spark Plugs are ideal for engines that run on conventional plugs and newer engines that require platinum plugs. ACDelco Professional Platinum Spark Plugs can give you up to 100,000 miles of service before requiring replacement.*

Professional Platinum spark plugs also feature:

• Dual platinum tip for improved resistance to spark erosion, fouling, and corrosive combustion chamber environment
• A platinum center electrode and a platinum pad lower the ignition demand voltage
• One-piece integral suppressor seal helps reduce radio frequency interference, meters spark plug energy to help provide long electrode life, and seals against compression leakage
• Designed with corrosion-resistant shell
• Spark gap remains virtually unchanged during the life of the plug
• Available for most makes and models See your Owner?s Manual for more information.

The 41-993 has replaced the 41-932

Applications Include:

• CRUSADER 5.0L MP 2005 275 hp GM V8
• CRUSADER 5.7L CARB 300 hp GM V8
• CRUSADER 5.7L MP 2005 220 hp GM V8
• CRUSADER 6.0L MP 375 hp GM V8
• CRUSADER 8.1L MP 385 hp GM V8
• CRUSADER 8.1L MP (HO) 425 hp GM V8
• INDMAR 4.6L MPI Northstar Cadillac 279 cid
• INDMAR 5.7L V8 LS1 2002-1994 8 cyl GM Small Block
• INDMAR 5.7L V8 LS1 2005-2003 8 cyl GM Small Block
• INDMAR 6.0L V8 2005-2003 8 cyl GM Big Block
• INDMAR 8.1L MPI Vortec 2005-2003 8 cyl GM Big Block
• MERCRUISER 350 Mag MPI Gen+ (From 0M310000) Inboard 8 cyl GM Small Block
• MERCRUISER 350 Mag MPI Gen+ (From 0M320590) Stern Drive 8 cyl Chevrolet Small Block
• MERCRUISER 350 Mag MPI Gen+ Horizon (From 0M310000) Stern Drive 8 cyl Chevrolet Small Block
• MERCRUISER 4.3L MPI Gen+ (From 0M322781) Stern Drive 6 cyl Chevrolet V-6
• MERCRUISER 496 Mag Stern Drive 8 cyl Chevrolet Big Block
• MERCRUISER 496 Mag HO Stern Drive 8 cyl Chevrolet Big Block
• MERCRUISER 5.0L MPI Gen+ (from 0M320415) Stern Drive 8 cyl Chevrolet Small Block
• MERCRUISER 8.1S HO up to 2006 Inboard 8 cyl GM Big Block
• MERCRUISER 8.1S Horizon up to 2006 Inboard 8 cyl GM Big Block
• MERCRUISER Black Scorpion 5.7L (From 0M391852) up to 2006 Inboard 8 cyl GM Small Block
• MERCRUISER Black Scorpion MX 6.2 (From 0M391778) up to 2006 Inboard 8 cyl GM Small Block
• MERCRUISER MX 6.2 MPI (From 0M320614) up to 2006 Inboard 8 cyl GM Small Block
• MERCRUISER MX 6.2 MPI (From 0M320614) Stern Drive 8 cyl Chevrolet Small Block
• MERCRUISER MX 6.2 MPI Horizon (From 0M320614) up to 2006 Inboard 8 cyl GM Small Block
• MERCRUISER MX 6.2 MPI Horizon (From 0M320614) Stern Drive 8 cyl Chevrolet Small Block
• VOLVO-PENTA 5.7L DPX 375 Stern Drive - DPX
• VOLVO-PENTA 5.7L GXi Inboard Series
• VOLVO-PENTA 5.7L GXi Stern Drive - DuoProp
• VOLVO-PENTA 5.7L GXi Stern Drive - SX Cobra
• VOLVO-PENTA 8.1L DPX 420 Stern Drive - DPX
• VOLVO-PENTA 8.1L GXi Inboard Series

This plug interchanges with:

• MERCURY 33-884019
• NGK 782 & PZTR5A15
• NGK Iridium plug # 7164 & TR55IX
• Autolight APP605
• Champion 7013 & 7940 & RS14PYP6