The Enginetech EPF1023-20 is a bulk 20 pack of valve keepers (also known as valve locks or valve spring retainer keepers) with a 1 square groove profile. Fits 1975-1995 Toyota 2.2L/2.4L/2.8L applications.
Important Notes
- Supplied as a 20 Pack. Each valve uses two keepers, so this pack covers 10 valves.
- 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-square grooved valve stem. Keepers must match the count and shape of grooves on the valve stem exactly - a mismatch will prevent proper spring retention.
- 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 | EPF1023-20 |
| Product Type | Valve Keeper (Valve Lock / Spring Retainer Keeper) |
| Pack Size | 20 keepers per pack |
| Per Valve | 2 keepers required (1 pair per valve) |
| Groove Count | 1 |
| Groove Shape | Square |
| Weight | 0.25 lbs |
| UPC | 707473076159 |
| Country of Origin | US |
Vehicle Fitment
- 1975-1980 Toyota Celica 2.2L I4 SOHC [VIN:R]
- 1975-1980 Toyota Corona 2.2L I4 SOHC [VIN:R]
- 1975-1980 Toyota Pickup 2.2L I4 SOHC [VIN:R]
- 1981-1982 Toyota Corona 2.4L I4 SOHC [VIN:R]
- 1981-1983 Toyota Celica 2.4L I4 SOHC [VIN:R]
- 1981-1990 Toyota Pickup 2.4L I4 SOHC [VIN:R]
- 1982-1986 Toyota Celica 2.8L I6 DOHC [VIN:M]
- 1983-1985 Toyota Celica 2.4L I4 SOHC [VIN:R]
- 1983-1988 Toyota Cressida 2.8L I6 DOHC [VIN:M]
- 1984 Toyota 4Runner 2.4L I4 SOHC [VIN:R]
- 1984-1988 Toyota Pickup 2.4L I4 SOHC [VIN:R]
- 1985-1988 Toyota 4Runner 2.4L I4 SOHC [VIN:R] Turbocharged
- 1985-1988 Toyota Pickup 2.4L I4 SOHC [VIN:R] Turbocharged
- 1985-1989 Toyota 4Runner 2.4L I4 SOHC [VIN:R]
- 1989-1995 Toyota Pickup 2.4L I4 SOHC [VIN:R]
- 1990-1995 Toyota 4Runner 2.4L I4 SOHC [VIN:R]
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.
