CDI DVA Adapter - 511-9773NL Converts your engines AC Voltage signal to DC Voltage to measure the Peak Output. Simply remove your existing test leads out of the meter, plug in the DVA Adapter and then plug in your test leads into the adapter to measure...

CDI Spark Tester 1-8 Cylinder - 519-S48 Spark Tester with external leads for those hard to reach locations. Capable of checking 1-8 cylinders. Tester can divide in two section for testing. Replaces: 519-S48, S48 Part...

CDI Replacement Pump Assembly - 551-33PB Replacement Pump for newer 551-33-1 Gearcase Filler tanks w/ built-in drip pan Part Number CDI-551-33PB

CDI Replacement Pump Assembly - 551-33PA Replacement Pump for Older 551-33-1 Gearcase Filler without built-in drip pan Part Number CDI-551-33PA

CDI Gearcase Filler Valve - 551-33VA Replacement Valve for the 551-33-1 Gearcase Filler Please Note: This now metal valve replaces the old plastic version Part Number CDI-551-33VA

CDI Mercruiser Ignition Lead Set - 631-0004 Application: 8 Cyl Thunderbolt Replaces Original OE Part Numbers: 631-0004, 816608Q61, 816761K4, 816761K61, 816761Q3, 816761Q4, 9-28001 Features: Carefully crafted to suit your specific boating...

CDI Threaded Nozzle - 551-33TN Replacement Pump for newer 551-33-1 Gearcase Filler tanks w/ built-in drip pan Replaces: 551-33PB Part Number CDI-551-33TN

CDI Mercruiser Ignition Lead Set - 631-0006 Application: 8 Cylinder Mercruiser 454 EFI, MAG MPI, 502 EFI, MAG MPI engines with the Delco HEI Ignition Replaces Original OE Part Numbers: 18-8832-1, 631-0006, 84-816608K68,...

CDI Mercruiser Ignition Lead Set - 631-0008 Application: 8 Cylinder Thunderbolt Replaces Original OE Part Numbers: 18-8804-1, 631-0008, 84-816608A61, 84-847701K4, 84-847701Q4, 9-28002 Features: Carefully crafted to suit your specific...

CDI Mercruiser Ignition Lead Set - 631-0007 Application: 4 Cylinder for Mercruiser & OMC 2.5L, 3.0L with Conventional Ignition Replaces Original OE Part Numbers: 18-8800-1, 503748, 631-0007, 84-816761K5, 84-816761Q5,...

CDI Ignition Lead Set - 631-0013 Application: (6 Cyl) Conventional Ignition with Delco Breaker Point Distributor Crusader Marine 229, 262 (4.3L) w/Elect. Ign., Indmar, Mastercraft, Marine Power 262 (4.3L) w/Electronic Ign. Mercury Marine 185MR,...

CDI Mercruiser Ignition Lead Set - 631-0011 Application: 8 Cylinder Mercruiser 5.0L MIE, MPI, with Delco HEI Ignition Replaces Original OE Part Numbers: 18-8828-1, 631-0011, 84-863656A1, 9-28009, S756003 Features: Carefully crafted to suit...

CDI Mercruiser Ignition Lead Set - 631-0010 Application: 8 Cylinder GM Engines with Conventional Ignition - Mercruiser, OMC & Volvo. Replaces Original OE Part Numbers: 18-8802-1, 631-0010, 84-816761Q12, 875166-7,...

CDI Mercruiser Ignition Lead Set - 631-0023 4 Cyl Mercruiser 3.0 LX (1991-97) Replaces: 18-8811-1, 18-8833-1, 631-0023, 84-816761Q14, 9-28056 Part Number CDI-631-0023

CDI Ignition Lead Set - 631-0020 Application: V8 Distributorless Mercruiser Marine Model 8.1S MIE and HO MIE 496 (2000-Up). Suits models with individual coil packs per cylinder  Replaces Original OE Part Numbers: 18-8838-1, 3861295,...

CDI Mercruiser Ignition Lead Set - 631-0015 Application: 6 Cylinder Conventional Ignition with Delco Breaker Point Distributor Mercury Marine 470, 485, 488, 3.7L Aluminum Block Engines Replaces Original OE Part Numbers: 18-8808-2, 631-0015,...

CDI Copper Core Spark Plug Wire - 931-2365 9.5” Double-booted spark plug wire Replaces: 18-5230-9-1, 18-5231-1, 582365, 931-2365 Part Number CDI-931-2365

CDI High Performance Spark Plug Wires 1994-2006 (85 JET, 90 & 115HP) 60 Degree Engines. Qty. 4 Replaces: 18-8839-1, 931-4922 Part Number CDI-931-4922

CDI Mercury Copper Core Spark Plug Wire Replacement spark plug wire for CDM Modules. Replaces: 84-821945A61, 934-7124 Part Number CDI-934-7124

CDI Mercury Distributor Cap Fits Most 1970-1979 (Outboard Engines w/ a Distributor) Includes: Distributor Brush & Spring Assembly. Replaces: 134-4841, 393-4841A 2, 994-4841 Part Number CDI-994-4841