BCBC K-20J Engine Oil Pump Repair Kit

Engine oil pump rebuild kit

Melling K-20J is a specific-fit engine oil pump repair kit for rebuilding one oil pump assembly. It is built for applications where the original oil pump casting or front timing cover is being reused, making it a practical service part for classic Buick engine maintenance.

Key features

• Specific-fit repair kit for a single oil pump rebuild
• Stainless steel drive gear for durable internal operation
• Fiber gasket material with a 6-hole gasket design
• 8-tooth drive gear configuration
• Stock line product from Melling

Detailed description

The Melling K-20J oil pump repair kit supplies the parts needed to rebuild a specific individual oil pump rather than replacing the entire assembly. Melling notes that these kits are a preferred choice when the rebuilder wants to keep the original oil pump casting or front timing cover. This makes K-20J a fitment-focused service solution for Buick applications including Electra, Riviera, LeSabre, Skylark, Wildcat, GS 400, GS 455, and related models listed in the fitment data. The K-20J part number is also useful when cross-checking service records or sourcing the correct rebuild components for a Buick engine oil pump repair.

What it is used for

• Restoring worn oil pump internals during engine service
• Replacing damaged pump gears or gasket components
• Reusing an original pump casting or front timing cover
• Addressing oil pump rebuild needs on stock Buick applications

Installation notes and tips

Confirm the pump design before ordering, since this kit is specific to a particular oil pump application. Inspect the pump housing, timing cover, and related surfaces for wear or damage before assembly. Follow the service procedure for gear clearance, gasket placement, and lubrication during installation. Verify the part number K-20J against the existing pump configuration before beginning the rebuild.

Quality assurance

Melling positions this kit as a rebuild solution for specific oil pump service, with components selected for a quality rebuild. The K-20J part number is supported by Melling interchange references for related service applications, including 51-9 and AK-20J.