BCBC VL-1098 Engine Valve Lock

Engine Valve Lock for OE-Style Service

This Melling engine valve lock is a standard replacement part for valve train service on a wide range of applications. It is built with steel construction and sized for a 0.182-inch valve stem diameter, making it a direct-fit service component for engines that require this specification.

Part number VL-1098 is used when replacing worn or reused valve locks during cylinder head work. It supports stock-style engine builds across many Audi, Volkswagen, Chevrolet, GMC, Cadillac, and other applications listed below.

Key Features

• Steel construction for valve train service
• Standard replacement grade for OE-style applications
• 14-degree lock angle
• Three-groove design
• Fits 0.182-inch valve stem diameter applications
• Part number VL-1098

Detailed Description

Melling VL-1098 valve locks are intended for use during engine valve installation and service. The manufacturer specifies that new valve locks should be used with both reclaimed and new valves, and that reused locks should not be installed again. This part is engineered to meet or exceed OEM requirements for each application, with steel construction and standard replacement dimensions that support proper valve retention in the valve train.

Fitment coverage includes many Audi A3, A4, A5, Q5, S4, and TT applications, along with Volkswagen GTI, Golf, Jetta, Passat, and Touareg models. It also fits selected Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac CT5 applications. Part number VL-1098 is listed for stock-style service across these engines.

What It Is Used For

• Replacing worn valve locks during cylinder head repair
• Securing valves during engine reassembly
• Restoring proper valve stem retention after service
• Addressing valve train wear from reused locking hardware

Installation Notes and Tips

Use new valve locks during installation and do not reuse removed locks. Verify valve stem diameter, groove count, and lock angle before assembly to confirm correct fitment. This part cross-references 121-1098 and 4892 820AB for the same application.

Quality Assurance

Melling states that this valve lock is manufactured with quality materials and engineered to meet or exceed OEM requirements for the listed applications. Part number VL-1098 is a standard replacement component for engine valve service.