The Enginetech EPF1104 is a bulk 200 pack of valve keepers (also known as valve locks or valve spring retainer keepers) with a 1 round groove profile. Fits 2001-2024 Ford/Land Rover/Lincoln/Mazda 1.5L/2.0L/2.3L+ applications.
Important Notes
- Bulk 200 Pack for machine shops and rebuilders: covers approximately 6 complete 2-valve V8 engine rebuilds or 12 2-valve L4 rebuilds at two keepers per valve. Order additional packs for 4-valve-per-cylinder applications or higher volume.
- Two keepers per valve: keepers are split wedges that meet around the valve stem groove to form a complete collet, which locks the valve spring retainer to the stem. Always order in even quantities.
- Groove profile: matches a 1-round grooved valve stem. Keepers must match the count and shape of grooves on the valve stem exactly - a mismatch will prevent proper spring retention.
- Fits both intake and exhaust valve positions - no need to order separate intake and exhaust keepers.
- Always verify the OE valve stem diameter, groove count, groove shape (round vs square), and cylinder head material against the original keepers being replaced before installation. Keeper profiles are application-specific and cannot be interchanged freely between engines.
Specifications
| Part Number | EPF1104 |
| Product Type | Valve Keeper (Valve Lock / Spring Retainer Keeper) |
| Pack Size | 200 keepers per pack |
| Per Valve | 2 keepers required (1 pair per valve) |
| Groove Count | 1 |
| Groove Shape | Round |
| Bead Type | Round Bead |
| Valve Position | Intake and Exhaust |
Vehicle Fitment
- 2001-2009 Mazda B2300 2.3L 140ci I4 DOHC [VIN:D]
- 2001-2011 Ford Ranger 2.3L 140ci I4 DOHC [VIN:D]
- 2003-2008 Mazda 6 2.3L I4 DOHC
- 2004-2007 Ford Focus 2.3L 140ci I4 DOHC [VIN:Z]
- 2004-2008 Mazda 3 2.0L 122ci I4 DOHC
- 2004-2008 Mazda 3 2.3L I4 DOHC
- 2005-2006, 2008 Mazda Tribute 2.3L 140ci I4 DOHC [VIN:Z]
- 2005-2008 Ford Escape 2.3L 140ci I4 DOHC [VIN:H]
- 2005-2008 Ford Escape 2.3L 140ci I4 DOHC [VIN:Z]
- 2005-2008 Mercury Mariner 2.3L 140ci I4 DOHC [VIN:Z]
- 2005-2011 Ford Focus 2.0L 122ci I4 DOHC [VIN:N]
- 2006-2007 Mazda 6 2.3L I4 DOHC Turbocharged
- 2006-2008 Mazda 5 2.3L I4 DOHC
- 2006-2008 Mazda MX-5 Miata 2.0L 122ci I4 DOHC
- 2006-2008 Mercury Mariner 2.3L 140ci I4 DOHC [VIN:H]
- 2006-2009 Ford Fusion 2.3L 140ci I4 DOHC [VIN:Z]
- 2006-2009 Mercury Milan 2.3L 140ci I4 DOHC [VIN:Z]
- 2007 Mazda CX-9 3.5L 213ci V6 DOHC
- 2007-2008 Mazda 3 2.3L I4 DOHC Turbocharged
- 2007-2008 Mazda CX-7 2.3L I4 DOHC Turbocharged
- ...and 183 additional applications
Enginetech Valve Keepers (also called valve locks or valve spring retainer keepers) are precision-machined split wedges that lock the spring retainer onto the valve stem groove, holding the valve spring under preload and transmitting the spring force to the valve. Each valve uses two keepers that meet around the stem groove, so a single engine requires two keepers per valve (for example, a typical V8 with 16 valves requires 32 keepers). These keepers are supplied in bulk pack quantities for machine shops and rebuilders. Always verify the valve stem diameter, groove count, groove profile (round vs square), and cylinder head material against the OE specification before installation; keeper profiles are specific to each valve family and cannot be interchanged freely even between engines of similar displacement.
