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Shop/Category/Fig. 8 — TIMING COVER AND CONTACT BREAKER/Contact Breaker Plate Assembly
Contact Breaker Plate Assembly
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DiagramFig. 8 — TIMING COVER AND CONTACT BREAKER · ref 13
Subsystemengine bottom
Listed in parts books1968, 1970–1972, 1974

Contact Breaker Plate Assembly

Contact breaker plate assembly that carries the ignition points inside the timing cover.

PN · 54419097

This is the contact breaker plate assembly, the piece inside the timing cover that carries the ignition points. It's a Lucas-type component, and on these engines it lives right where the timing cover meets the crankcase, alongside the oil pump and oil pressure relief valve as shown in the parts book figures for that area.

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The plate holds the breaker points and lets them be positioned for correct timing; wear or looseness here shows up as an unsteady spark and an engine that won't hold a tune. It shows up across catalog listings spanning 1968 through 1974, so if you're chasing ignition trouble on an engine from that era, this is worth pulling and inspecting.

We don't have more detail on this one beyond what the parts book figure tells us. If you're not sure whether the version in your engine matches this part number, call the shop and we'll confirm before you order.

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