ARCO MerCruiser MPI V8 Marine Distributor Cap

The ARCO replacement distributor cap is designed for MerCruiser V8 MPI engines using the Delco HVS distributor system. The fitment list includes 5.0L, 5.7L, and 6.2L MPI engines with the 555 ECM, along with selected PleasureCraft and Volvo Penta applications. Because the cap works with a specific distributor design, engine displacement alone is not enough to confirm fitment. Matching the existing distributor or original cap number is the safest way to verify the replacement.

MerCruiser 884792, 898253022, 898253T22, and 8M6001106 are included in the supplier cross-reference list. PleasureCraft RA108009, Volvo Penta 3858975, Indmar 556345, Sierra 18-5244, and CDI Electronics E64-0006 are also identified. Those references allow the same service part to be confirmed across several marine engine packages that use the Delco HVS V8 distributor. Inspect the cap’s terminal arrangement and mounting before discarding the old part.

When replacing the cap, inspect the rotor, plug-wire terminals, distributor housing, and vent area for corrosion or tracking. Moisture or carbon paths inside the distributor can create repeat misfires even when the cap itself is new. ARCO lists 12-month parts-and-labor warranty protection for this component. After assembly, make sure each plug wire is returned to the correct tower before the engine is started.

• Designed around Delco HVS V8 distributor applications
• Supports several MerCruiser MPI engine sizes
• Cross-references PleasureCraft, Volvo Penta, Indmar, Sierra, and CDI parts
• Direct distributor-cap service replacement

For other distributor, ignition, and engine-control replacement components, Browse more Engine Controls & Ignition for related replacement and service components.