NGK Spark Plug Set - GM Vortec - Carbureted or EFI Engines
Replaces PCM R030008A
- Includes 8 Plugs
- V-Groove Center Electrode = V-Power
- Indmar LT1
- NOT For LS1 - LQ9 - 8.1L Use Item: RP030009
NGKTR5 is a direct cross reference to the AC MR43LTS. Patented V- Groove center electrode improves ignition and reduces quenching
Premium NGK spark plugs are known for their reliable performance and superior anti-fouling characteristics
The Vortec 5.0 - 5.7 marine engines came out in 1996 but most manufacturers didn't start production until 1997. It's easy to find out if you have a Vortec Engine. The intake manifold bolts go straight down and the engines that are NOT Vortec, are installed at an angle.
- 14mm thread size
- 17.5mm thread length
- Resistor
- Tapered seat
- V-Power Type
- Gap 0.039 in. (1.0mm)
- 5/8 in. or 16mm hex
- Replaces AC Delco MR43-LTS
- Replaces Crusader R030008A
- Replaces Champion RS9YC
- Replaces Mercury 33-862029
Recommended by the manufacturers for optimum performance, these spark plugs are the correct heat range for your marine engine