Replacement Distributor Cap Tune Up Kit Compatible with Mercruiser GM V8 Engines with Thunderbolt IV V HEI Ignition System Replaces 187523 805759Q3 805759T3 815407A2 Rotor Cap Gasket

The distributor distributes the high voltage spark from the coil to the correct cylinder required. Eventually they wear out over time like the spark plugs and wires resulting to poor electrical insulation which causes engine problems in the future therefore making it important to be part of the regular tune-up maintenance. Only works with HEI (High Energy Ignition) Systems and will not work with Point Ignition Systems. This replacement ignition coil by AA Ignition made by an original equipment supplier will get your 5.0L, 5.7L, 6.2L, 7.4L & 8.2L Mercruiser GM petrol engines with Thunderbolt 4 and 5 ignition systems. Fits the following engines:

• 5.0L V8
• 5.7L V8 (Inc 350 MAG)
• MX 6.2L V8
• 7.4L V8 (Inc 454 MAG)
• 8.2L V8 (Inc 502 MAG)

Replaces part numbers: 18-5723, 805759Q3, 805759T3, 815407A2, 815407Q5, 185723, 185710, 185395, 71780, 929350, 64759K, RL5273, 18-5710, 18-5935 This is a compatible replacement part manufactured by AA Ignition. This distributor cap kit is NOT a genuine Sierra, Mercury, GLM, Redline, Pro Marine or Mallory part. Sierra, Mercury, GLM, Redline, Pro Marine, Mallory and their associated vehicle models and part numbers are used in this listing only to identify what this distributor cap kit fits.