Omix-ADA 17401.09 Aluminum Valve Cover for 81-87 Jeep Cherokee/CJ5/CJ7/CJ8 4.2L

Vehicle Fitment

• 1981-1983 Jeep Cherokee / Wagoneer / Cherokee-SJ with 4.2 L I6 (AMC 258 ci)
• 1981-1983 Jeep CJ5 (4.2 L I6)
• 1981-1986 Jeep CJ7 (4.2 L I6)
• 1981-1985 Jeep CJ8 Scrambler (4.2 L I6)
• 1981-1986 Jeep J10 / J20 / Wagoneer (4.2 L I6)
• 1984-1986 Jeep Grand Wagoneer (4.2 L I6)
• 1987 Jeep Wrangler YJ (4.2 L I6)

Fitment Notes

• Valve cover replacement only -- does not include gasket or bolt kit (verify before installation).
• Intended for factory-style AMC 4.2 L (258 ci) inline-six engines; not for V8, 4.0 L, or other engines.
• If original head has modifications, confirm bolt-hole alignment prior to installation -- minor drilling may be required.

Features

• Die-cast aluminum construction for strength and durability
• Polished finish with "4.2 L" boss/embossing -- adds classic appearance under hood
• Cast ribs on cover to increase rigidity and heat dissipation
• OEM-style profile to match stock oil-fill cap and PCV layout
• Direct-fit replacement for original stamped steel or plastic valve cover on 4.2 L I6 engines
• Improved gasket sealing surface for better leak resistance vs. stock covers
• Corrosion-resistant aluminum alloy -- resists rust and provides long service life
• Five-year limited warranty (from manufacturer when used per instructions)

Specifications

• Part Number: 17401.09
• Material: Die-cast Aluminum
• Engine Compatibility: AMC 4.2 L (258 ci) Inline-Six
• Finish: Polished aluminum
• Fitment Years: 1981-1987 (various Jeep models using 4.2 L I6)
• Dimensions (approx): 29 in (L) x 6 in (W) x 5 in (H) -- matches stock footprint
• Mounting: OEM bolt-pattern (head bolt holes per original specification)
• Oil-cap / PCV hole: Included (same layout as original cover)

Included Components

• 1x Polished Aluminum Valve Cover (Omix-ADA 17401.09)

Product Description

The Omix-ADA 17401.09 valve cover is a direct replacement for original valve covers on AMC 4.2 L (258 ci) inline-six engines used from 1981-1987 in various Jeep models (CJ5, CJ7, CJ8, Cherokee/SJ, Wagoneer/J10/J20, Grand Wagoneer, and early YJ Wrangler). Manufactured from die-cast aluminum, it offers improved durability, heat tolerance, and a polished aesthetic that upgrades the engine bay appearance.

With cast-in ribs for structural integrity and a smooth machined sealing surface for a strong gasket fit, this valve cover helps resist leaks that commonly affect old stamped-steel or composite covers. Designed to match the factory bolt pattern and PCV/oil-fill layout, installation is straightforward and often reversible -- making 17401.09 a reliable choice for restorations, rebuilds, or show-quality engine builds on AMC-powered Jeeps.