Power Pack Johnson & Evinrude 4 Cylinder | CDI 113-1731

CDI 113-1731 — 4-Cylinder Power Pack | Johnson & Evinrude | 1973–1978 | Includes Cover & Gasket | Sierra 18-99169

Johnson and Evinrude 4-cylinder outboards from this era use a CD ignition power pack that is no longer available from the OEM — making a reliable aftermarket replacement the correct solution. CDI 113-1731 covers J&E 4-cylinder engines from 1973 through 1978 and ships complete with cover and gasket. Sierra 18-99169 is the current superseding part number for this unit. Replaces a broad range of original J&E OEM numbers.

Part Specifications

• CDI Part Number: 113-1731 now SIERRA 18-99169
• Type: 4-cylinder power pack (CD ignition)
• Application: Johnson & Evinrude 4-cylinder outboard engines
• Years: 1973–1978
• Kit Contents: Power pack, cover, gasket
• Superseded By Sierra: 18-99169
• Replaces J&E OEM: 581311, 581709, 581731, 581895, 582056, 767506, 300-01401, 4-5753, 18-5753, 18-5756
• Vendor: CDI Electronics

Confirm Fitment Before Ordering

Confirm the year and cylinder count match your engine before ordering — CDI offers multiple power packs for J&E outboards of this era and the correct unit depends on your specific engine model. Give us your Johnson/Evinrude engine model and serial number and we’ll confirm the right pack before you order — by email, text, or live chat.

Additional Information

• Vendor: CDI Electronics
• Part Number: 113-1731
• Superseded By Sierra: 18-99169
• OEM Cross-Reference: 581311, 581709, 581731, 581895, 582056, 767506, 300-01401, 4-5753, 18-5753, 18-5756
• Kit Contents: Power pack, cover, gasket
• Application: J&E 4-cylinder outboards, 1973–1978

Frequently Asked Questions

Q: Why is the CDI unit the right choice for this older J&E application?
A: Original OEM power packs for Johnson and Evinrude outboards of this vintage are no longer available new from OMC/BRP. CDI Electronics specializes in aftermarket ignition replacements for these engines and engineers their units to meet or exceed the original specification — making the CDI 113-1731 the correct current replacement for this application.

Q: Why does this kit include a cover and gasket?
A: The power pack cover and gasket are included because they are typically disturbed or degraded when the original pack is removed, and reusing a compromised gasket risks moisture intrusion into the ignition housing. Installing the new pack with the included cover and gasket ensures a proper seal.

Q: What are the symptoms of a failing power pack on a J&E 4-cylinder outboard?
A: Common symptoms include one or more dead or intermittent cylinders, misfires under load, hard starting, or a complete no-start with spark present at the coils. On 4-cylinder engines, a partially failed power pack often produces a noticeable rough-running condition or RPM ceiling before a full no-run event.

Q: Should I test the stator and timer base before replacing the power pack?
A: Yes — always. A failed stator or timer base produces symptoms nearly identical to a bad power pack. Installing a new CDI unit without ruling out the stator and timer base risks damaging the replacement. CDI Electronics publishes ignition test procedures for J&E engines — work through the test sequence before replacing any single component.

Q: There are many OEM part numbers listed — how do I know this covers my engine?
A: The broad cross-reference list reflects the range of original J&E part numbers this pack replaces across the 1973–1978 4-cylinder engine family. To confirm the correct fit for your specific engine, give us your model and serial number and we’ll verify before you order — by email, text, or live chat.