Pioneer Cables 816171 Engine Auxiliary Valve Keeper

Engine Auxiliary Valve Keeper for Performance Builds

Pioneer Cables 816171 is an engine auxiliary valve keeper for high-performance valve train service. It is listed for 11/32" single-groove, machined applications and covers a wide range of classic and late-model domestic performance vehicles.

Key Features

• Engine auxiliary valve keeper for valve train applications
• 11/32" single-groove, machined configuration
• High-performance application listing
• Fits a broad range of Buick, Chevrolet, Ford, Mercury, Lincoln, Oldsmobile, Pontiac, and related models
• Part number: 816171

Fitment Coverage

• Fits 1976-1997 Buick LeSabre, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1991-1997 Buick Park Avenue, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1990-1997 Buick Regal, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1975-1987 Buick Regal, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1967-1997 Chevrolet Camaro, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1984-1997 Chevrolet Corvette, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1982-1995 Ford Mustang, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1968-1973 Ford Mustang, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1975-1991 Mercury Grand Marquis, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1968-1982 Oldsmobile Cutlass Supreme, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.
• Fits 1967-1980 Pontiac Bonneville, N/A. Kit - Hi-Perf. - 11/32" Single Groove - Machined.

What This Part Is Used For

• Replacing worn or damaged valve keepers during engine rebuilds
• Restoring proper valve spring retention in performance cylinder heads
• Supporting service work on 11/32" single-groove valve stem setups
• Addressing valve train wear found during inspection or teardown
• Matching a machined keeper specification for domestic V8 applications

Installation Notes and Tips

Verify valve stem diameter, groove count, and keeper style before installation. This part is listed for 11/32" single-groove, machined applications, so the cylinder head and valve components must match that specification. Confirm fitment against the vehicle application and engine build requirements before assembly.

Quality Assurance

Pioneer Cables 816171 is cataloged for direct application matching across the listed vehicles, including Chevrolet Camaro, Ford Mustang, and Pontiac Bonneville fitments. This part cross-references none listed for the same application.