HYDRIL “GK” ANNULAR BOP
CATEGORY: BLOWOUT PREVENTERS – RAM STYLE, ANNULAR STYLE
Hydril GK Annular BOP Parts
LKC Equipment supplies Hydril GK Annular BOP replacement parts and components for drilling, completion, workover, intervention, and pressure-control operations. The Hydril GK Annular Blowout Preventer is one of the most widely used annular well-control systems in the oil and gas industry, providing dependable sealing around drill pipe, tubing, casing, wireline, and open hole conditions.
Our inventory includes packing elements, seal kits, pistons, slotted sleeves, U-seals, wear plates, housings, head gaskets, and replacement components designed to support the maintenance and rebuilding of Hydril GK annular BOP systems.

| ITEM | DESCRIPTION |
| 1 | BOP Head |
| 2 | Packing Element |
| 3 | Piston |
| 4 | Slotted Sleeve |
| 5 | Body |
| 6 | Head Gasket |
| 8 | Upper U-Seal |
| 9 | Middle U-Seal |
| 10 | Lower U-Seal |
| 17 | Pipe Plug |
| 18 | Cap Screw- Slotted Sleeve |
| 19 | Head Lock Screw |
| 29 | Wear Plate (Certain Models) |
| 30 | Screw- Wear Plate (Certain Models) |
| DESCRIPTION | SEALING ELEMENT | SEAL KIT |
| 7 1/16″, 3M GK Style, Natural | 1003252-01 | 3810K |
| 7 1/16″, 3M GK Style, Nitrile | 1003252-02 | |
| 7 1/16″, 5M GK Style, Natural | 1003253-01 | 3823K |
| 7 1/16″, 5M GK Style, Nitrile | 1003253-02 | |
| 11″, 3M GK Style, Natural | 1003259-01 | 1002127 |
| 11″, 3M GK Style, Nitrile | 1003259-02 | |
| 11″, 5M GK Style, Natural | 1003260-01 | 1002150 |
| 11″, 5M GK Style, Nitrile | 1003260-02 | |
| 13 5/8″, 3M GK Style, Natural | 1003262-01 | 1002189 |
| 13 5/8″, 3M GK Style, Nitrile | 1003262-02 | |
| 13 5/8″, 5M GK Style, Natural | 1003263-01 | 1002209 |
| 13 5/8″, 5M GK Style, Nitrile | 1003263-02 |


Hydril GK Annular Blowout Preventer Components
The Hydril GK Annular BOP incorporates multiple sealing, hydraulic, and structural components designed to provide reliable pressure-control performance.
Available components include:
- BOP Head
- Packing Element
- Piston
- Slotted Sleeve
- Body
- Head Gasket
- Upper U-Seal
- Middle U-Seal
- Lower U-Seal
- Pipe Plug
- Head Lock Screw
- Wear Plate
- Wear Plate Screws
These components work together to provide dependable sealing performance and effective well control.
Hydril GK Packing Elements
The packing element is the primary sealing component within the Hydril GK Annular BOP. It is designed to seal around multiple tubular sizes while maintaining pressure integrity during drilling and intervention operations.
Available packing element materials include:
- Natural Rubber Packing Elements
- Nitrile Packing Elements
Both options are available for multiple BOP sizes and pressure ratings.
Seal Kits for Hydril GK Annular BOPs
LKC Equipment supplies complete seal kits designed for maintaining and rebuilding Hydril GK Annular BOP systems.
Available seal kits include:
7 1/16″ 3M GK Style
- Seal Kit: 3810K
7 1/16″ 5M GK Style
- Seal Kit: 3823K
11″ 3M GK Style
- Seal Kit: 1002127
11″ 5M GK Style
- Seal Kit: 1002150
13 5/8″ 3M GK Style
- Seal Kit: 1002189
13 5/8″ 5M GK Style
- Seal Kit: 1002209
These seal kits help restore sealing performance and extend equipment service life.
Available Packing Element Sizes
Packing elements are available for multiple Hydril GK Annular BOP configurations.
7 1/16″ 3M GK Style
- Natural Element: 1003252-01
- Nitrile Element: 1003252-02
7 1/16″ 5M GK Style
- Natural Element: 1003253-01
- Nitrile Element: 1003253-02
11″ 3M GK Style
- Natural Element: 1003259-01
- Nitrile Element: 1003259-02
11″ 5M GK Style
- Natural Element: 1003260-01
- Nitrile Element: 1003260-02
13 5/8″ 3M GK Style
- Natural Element: 1003262-01
- Nitrile Element: 1003262-02
13 5/8″ 5M GK Style
- Natural Element: 1003263-01
- Nitrile Element: 1003263-02
Natural and nitrile packing element options are available depending on operating conditions and fluid compatibility requirements.
Piston & Hydraulic Components
The piston assembly is responsible for generating the force required to compress the packing element and create an effective annular seal.
Available components include:
- Piston Assemblies
- Upper U-Seals
- Middle U-Seals
- Lower U-Seals
- Head Gaskets
- Head Lock Screws
- Pipe Plugs
These components help maintain reliable sealing performance and pressure-control functionality.
Slotted Sleeve & Wear Plate Components
The Hydril GK design incorporates additional wear and support components that help improve service life and operational reliability.
Available products include:
- Slotted Sleeves
- Wear Plates
- Wear Plate Screws
- Body Components
- BOP Head Components
These parts help reduce wear and maintain proper operation of the annular preventer system.
Replacement Parts & Maintenance Components
LKC Equipment supplies replacement parts for maintaining and rebuilding Hydril GK Annular BOP systems.
Available replacement components include:
- Packing Elements
- Seal Kits
- Pistons
- Slotted Sleeves
- Head Gaskets
- Upper U-Seals
- Middle U-Seals
- Lower U-Seals
- Wear Plates
- Wear Plate Screws
- BOP Heads
- Bodies
- Pipe Plugs
- Head Lock Screws
These replacement parts help reduce downtime, support preventative maintenance programs, and extend equipment service life.
Applications
Hydril GK Annular BOP components are commonly used in:
- Drilling Operations
- Well Control Systems
- Pressure Control Equipment
- Workover Operations
- Completion Activities
- Wireline Operations
- Intervention Services
- Oilfield Maintenance Programs
These components help operators maintain safe and dependable well-control performance in demanding field environments.
Why Choose LKC Equipment
LKC Equipment supplies quality pressure-control equipment and replacement parts for oilfield operations worldwide.
Benefits include:
- Hydril GK Annular BOP Parts
- Hydril GK Packing Elements
- Complete Seal Kits
- Natural & Nitrile Element Options
- U-Seals & Piston Components
- Multiple BOP Sizes Available
- Replacement Pressure-Control Components
- Industry-Proven Oilfield Equipment
Frequently Asked Questions
The Hydril GK Annular BOP is a pressure-control device designed to seal around drill pipe, tubing, casing, wireline, and open hole conditions during well-control operations.
Packing elements are available in both natural rubber and nitrile compounds depending on operating requirements and fluid compatibility.
Available packing elements and seal kits cover:
- 7 1/16″ 3M
- 7 1/16″ 5M
- 11″ 3M
- 11″ 5M
- 13 5/8″ 3M
- 13 5/8″ 5M
Yes. Complete seal kits are available for multiple Hydril GK sizes and pressure ratings.
Upper, middle, and lower U-seals help maintain hydraulic sealing within the annular preventer assembly and support reliable piston operation.
Yes. We supply packing elements, seal kits, pistons, U-seals, slotted sleeves, wear plates, housings, and additional replacement components.
Request a Quote from a Trusted Oilfield Equipment Supplier
Looking for Hydril GK Annular BOP parts, packing elements, seal kits, pistons, U-seals, slotted sleeves, wear plates, or replacement pressure-control components?
Contact LKC Equipment today for oilfield equipment, oil and gas tools, equipment availability, specifications, and pricing. Our team can help identify the correct Hydril GK Annular BOP components for your drilling, workover, completion, and well-control requirements. We supply new, used, and refurbished well control equipment for drilling, workover, and oilfield operations. Our team is ready to support your operations with reliable supply and fast service.
Our commitment to quality and reliability has positioned us as a trusted oilfield equipment supplier and oilfield supply company serving clients across Oklahoma, North Dakota, Pennsylvania, California, and Texas, and across the United States and worldwide.