Mahle GS33947 Engine Cylinder Head Bolt Set

Overview

The Mahle GS33947 cylinder head bolt kit is an OEM-standard fastener set for engine service work that requires precise clamping and consistent thread engagement. It is built with fine threads, a hex drive, and standard-grade construction for applications calling for accurate cylinder head fastening.

Compatible With Ford F-150, Ford Expedition, and Lincoln Navigator applications, this kit supports engine repairs where cylinder head retention must match the original fastener specification. The GS33947 part number is also referenced as HL3Z-6065-A for the same application.

Key Features

• OEM Standard item grade for service matching original fastener requirements.
• Fine thread design with 1.5 mm pitch for controlled tightening.
• 6-point 17 mm hex head drive for secure tool engagement.
• 11.00 mm thread diameter and 143.40 mm length for specified engine use.
• Mahle cylinder head bolt kit engineered for cylinder head fastening service.

Detailed Description

Mahle GS33947 is a cylinder head bolt set designed around the dimensions and thread form needed for specific Ford and Lincoln engine applications. The fasteners use a fine thread, standard grade construction, and a hex head style to support accurate torque application during cylinder head installation or repair. The GS33947 part number appears in Ford interchange data as HL3Z-6065-A.

Mahle is known for sealing and engine service components used by OEMs and technicians worldwide, and this cylinder head bolt kit reflects that focus on service-grade fit and function. Fits 2021-2023 Ford F-150, N/A; Fits 2018-2020 Ford F-150, N/A; Fits 2018-2020 Ford Expedition, N/A; Fits 2021-2023 Ford Expedition, N/A; Fits 2018-2020 Lincoln Navigator, N/A; Fits 2021-2023 Lincoln Navigator, N/A.

Common Uses

• Replacing stretched or removed cylinder head bolts during engine repair.
• Restoring proper cylinder head clamping after head gasket service.
• Addressing fastener wear, corrosion, or thread damage in the head bolt set.
• Supporting reassembly after cylinder head removal on listed Ford and Lincoln engines.

Installation Notes

Verify engine code, bolt length, thread pitch, and head style before installation. Follow the vehicle service manual for tightening sequence and torque procedure, and replace fasteners only with the specified application match. Confirm the GS33947 part number and the Ford cross-reference HL3Z-6065-A before assembly.

Quality Assurance

Mahle supplies sealing and engine hardware products used in OEM and technician service environments, with a focus on specification-driven replacement parts.