Rocker Cover Gasket

The Perkins 104-22 Rocker Cover Gasket (OEM 111996401) is a replacement gasket for the rocker cover on Perkins 104-22 engines and related 400 series engines, including the 404C-22, 404D-22 and 404F-22. It seals the joint between the rocker cover and the cylinder head to keep engine oil in and dirt out.

Rocker cover gaskets are exposed to heat, oil and engine vibration, and over time they harden and lose their seal, which leads to oil leaks around the top of the engine. Fitting a new gasket whenever the rocker cover is removed for valve clearance adjustment helps prevent leaks.

FUNCTION AND OPERATION

• Seals the joint between the rocker cover and cylinder head.
• Prevents oil leaking from the top of the engine.
• Helps keep dirt and moisture out of the valve gear.
• Should be renewed whenever the rocker cover is removed.
• Replaces a hardened, cracked or leaking gasket.

TECHNICAL DETAILS

• Brand: Perkins
• OEM Number: 111996401
• Part Type: Rocker cover gasket
• Application: Engine rocker cover
• Compatible Engine: Perkins 104-22, 403D-17, 404A-22, 404C-22, 404D-22, 404F-22 (including turbo versions)
• Unit of Sale: 1 gasket

TYPICAL APPLICATIONS

• Perkins 104-22 engines
• Perkins 404-22 series engines in compact plant and generators
• Compatible Perkins engines using OEM 111996401

IMPORTANT INFORMATION

Clean both sealing faces thoroughly before fitting the new gasket and tighten the rocker cover fixings evenly to the correct torque to avoid distortion and leaks.

Always check the OEM number and engine serial number before ordering to ensure the correct rocker cover gasket is selected.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £150
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£30.00 for delivery before 10:30am
£25.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.