Review of Best Spark Plugs For 7.4 Vortec
Top Pick
1. AutoPart T ST-8055 7mm Ignition Spark Plug Wire Set, Set …
- Brand: AutoPart T
- Manufacturer: CRS
Features
- 1 year limited warranty. Please confirm this item fits your vehicle before you order or see the detailed description to know the exact model and year this item fits.
- Meets or exceed OE standards. Wire conductor, wire length, and diameter help provide maximum spark delivery and protection
- Durable Silicone outer sleeve/ resistance to high heat/ abrasion.
- Premium corrosion-resistant snap lock terminals that click into place for easy installation and removal
Best Quality
2. ACDelco GM Original Equipment 748G Spark Plug Wire Set
- Brand: ACDelco
- Manufacturer: ACDelco
- Dimensions: Height: 6.0 Inches Width: 10.0 Inches Length: 3.8 Inches Weight: 1.88 Pounds `
Features
- The same performance as your GM vehicle’s original factory component
- Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal
- Terminal design improves spark plug retention and assists installation with excellent corrosion resistance
- Fiberglass braid and carbon impregnated fiberglass core for added strength and superior conductivity
- Engineered for electromagnetic interference and radio frequency interference (EMI/RFI) noise suppression
Recommended
3. Mercruiser Thunderbolt V8 DISTRIBUTOR CAP ROTOR SPARK PLUG WIRES KIT …
- Brand: RPS
- Manufacturer: RPS
- Dimensions: Height: 8.0 Inches Width: 6.0 Inches Length: 6.0 Inches
Features
- New distributor cap, rotor, and spark plug wires for Mercruiser V8 engines with Thunderbolt ignition.
- Fits 5.0, 5.7, 7.4, 8.2 engines with Thunderbolt ignition system.
- 8mm plug wires
- Distributor cap is J1171 certified and has quality brass/copper contacts. Includes new bolts, gasket, and drain for cap. Dialectic grease included for wires.
- Replaces Mercruiser #’s 805759Q3 & 84-816608Q61
4. ACDelco Professional 9718Q Spark Plug Wire Set
- Brand: ACDelco
- Manufacturer: ACDelco
- Dimensions: Height: 6.0 Inches Width: 10.0 Inches Length: 3.8 Inches Weight: 1.27 Pounds `
Features
- Wire conductor, wire length, and diameter help provide maximum spark delivery and protection
- Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal
- Terminal design improves spark plug retention and assists installation with excellent corrosion resistance
- Insulator employs high dielectric materials. The length of the wire is 28.2 inches
- Coil retainer prevents fretting and micro-arcing
5. ACDelco Professional 9748HH Spark Plug Wire Set
- Brand: ACDelco
- Manufacturer: ACDelco
- Dimensions: Height: 6.0 Inches Width: 10.0 Inches Length: 3.8 Inches Weight: 0.85 Pounds `
Features
- Wire conductor, wire length, and diameter help provide maximum spark delivery and protection
- Spark plug distributor boot shape and materials provide proper fit, installation, and water tight seal
- Terminal design improves spark plug retention and assists installation with excellent corrosion resistance
- Insulator employs high dielectric materials
- Coil retainer prevents fretting and micro arcing
7. ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1)
- Brand: ACDelco
- Manufacturer: ACDelco
- Dimensions: Height: 1.7 Inches Width: 3.8 Inches Length: 4.4 Inches Weight: 0.02 Pounds `
Features
- Black Onyx coating helps reduce corrosion
- Copper core provides great heat transfer and helps maximize plug durability
- Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
- Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
- Available for use in Marine applications
8. RPS Tune up kit for Mercruiser 5.0, 5.7, 7.4, 8.2 …
- Brand: RPS
- Manufacturer: RPS
- Dimensions: Height: 6.0 Inches Width: 6.0 Inches Length: 8.0 Inches
Features
- Tune up kit for Mercruiser 5.0, 5.7, 7.4, 8.2 engines with Thunderbolt ignitions. The spark plugs are for Vortec engines 1997 and newer.
- Kit includes spark plug wires, coil wire, distributor cap/rotor, and 8 MR43LTS spark plugs
- Spark plug wires replace part numbers 84-816608Q61, 84816761K17, 84-816761Q17
- Distributor cap/rotor kit replaces part number 805759Q3, 805759T3, 805759T1, 13524T1, 27-805760, 805759Q-3, 805759A5, 805759A 2, 16457A 4, 13524T 1, 13524A 5, 13524A 1
- Eight AC Delco MR43LTS spark plugs. Check your engine cover to ensure these are the correct spark plugs for your engine before ordering.
9. ACDelco GM Original Equipment 41-162 Iridium Spark Plug
- Brand: ACDelco
- Manufacturer: ACDelco
- Dimensions: Height: 1.06 Inches Width: 3.56 Inches Length: 4.13 Inches
Features
- Iridium is the latest in spark plug technology and is an exact replacement for vehicles’ original componentsá
- Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
- Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
- Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
10. 10.5 MM High Performance Spark Plug Wire Set for HEI …
- Brand: Vkinman
- Manufacturer: Anxingo
Features
- Feature: 10.5mm High Performance Racing Spark Plug Wires
- Universal Set For SBC & BBC Chevrolet Engines
- Electronic Ignition HEI Plug Wires, 90 Degree Boots on Both Ends
- Get more Spark to your Plugs with a set of High Performance Ignition Wires
- These 10.5mm wires feature high-temperature 100% pure silicone insulator outer layer!