Model # 16121101 Official Sears tune-up tester

Part #27-111

The manufacturer no longer makes this part, and there's no substitute part

Part #25-171-96

The manufacturer no longer makes this part, and there's no substitute part

Part #1000-76

The manufacturer no longer makes this part, and there's no substitute part

Part #38-201

The manufacturer no longer makes this part, and there's no substitute part

Part #25-170-105

The manufacturer no longer makes this part, and there's no substitute part

Part #21-106

The manufacturer no longer makes this part, and there's no substitute part

Part #27-123

The manufacturer no longer makes this part, and there's no substitute part

Part #33-108

The manufacturer no longer makes this part, and there's no substitute part

Part #21-105

The manufacturer no longer makes this part, and there's no substitute part

Part #450-101

The manufacturer no longer makes this part, and there's no substitute part