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Standard Ignition IH-121 Ignition Condenser
Overview of Standard Ignition IH-121 Ignition Condenser
The Standard Ignition IH-121 ignition condenser is designed for reliable secondary ignition performance in select Ford vehicles. This condenser features a single terminal with a blade, eye-loop type connection and a wire lead length of 2 7/16 inches, ensuring compatibility and ease of installation.
- Single terminal design for straightforward connection
- Blade, eye-loop terminal type for secure attachment
- Wire lead length of 2 7/16 inches for proper fitment
- Compatible with Ford Econoline, F-100, F-250, F-350, and LTD models
- Part number IH-121 for precise identification
Detailed Product Description
The IH-121 ignition condenser by Standard Ignition is engineered to meet the secondary ignition requirements of various Ford trucks and vans, including the Econoline series and F-series pickups such as the F-100, F-250, and F-350, as well as the Ford LTD. The condenser’s single terminal with a blade, eye-loop type connection provides a reliable electrical interface, minimizing the risk of loose connections or signal loss. The 2 7/16 inch wire lead length is optimized for these specific vehicle models, allowing for proper routing and secure installation within the ignition system.
Applications and Problem Resolution
This ignition condenser is used in the secondary ignition circuit to help suppress electrical noise and ensure consistent spark timing. It is commonly replaced to address issues such as:
- Intermittent or weak ignition spark
- Engine misfires or rough idling
- Difficulty starting the engine
- Excessive ignition system electrical noise
- Worn or damaged condenser components causing ignition failure
Installation Notes and Tips
- Verify compatibility with your Ford Econoline, F-100, F-250, F-350, or LTD model before installation
- Ensure the blade, eye-loop terminal is securely connected to prevent electrical resistance
- Route the 2 7/16 inch wire lead carefully to avoid contact with hot or moving engine parts
- Disconnect the battery before installation to prevent electrical shock or damage
- Consult the vehicle’s service manual for specific ignition system procedures
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The IH-121 ignition condenser undergoes rigorous quality control to ensure durability and reliable performance in Ford vehicles. Warranty coverage details should be confirmed with the product documentation or authorized distributor.
| Brand | Standard Ignition |
| Part Number | IH-121 |
| Terminal Type | Blade, Eye-loop |
| Wire Lead Length | 2 7/16" |
This part fits 65 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1967 | Ford | F-100 | 3.9L | L6 | N/A | For Holley Distributor. |
| 1967 | Ford | F-100 | 4.9L | L6 | N/A | For Holley Distributor. |
| 1967 | Ford | F-250 | 3.9L | L6 | N/A | w/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD |
| 1967 | Ford | F-350 | 3.9L | L6 | N/A | w/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD |
| 1967 | Ford | LTD | 3.9L | L6 | N/A | w/o Thermactor Emission; Standard Duty |
| 1966 | Ford | F-100 | 3.9L | L6 | N/A | For Holley Distributor. |
| 1966 | Ford | F-100 | 4.9L | L6 | N/A | For Holley Distributor. |
| 1966 | Ford | F-250 | 3.9L | L6 | N/A | w/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD |
| 1966 | Ford | F-350 | 3.9L | L6 | N/A | w/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD |
| 1966 | Ford | LTD | 3.9L | L6 | N/A | w/o Thermactor Emission; Standard Duty |
| 1965 | Ford | F-100 | 3.9L | L6 | N/A | For Holley Distributor. |
| 1965 | Ford | F-100 | 4.9L | L6 | N/A | For Holley Distributor. |
| 1965 | Ford | F-250 | 3.9L | L6 | N/A | Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD |
| 1965 | Ford | F-350 | 3.9L | L6 | N/A | Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD |
| 1965 | Ford | LTD | 3.9L | L6 | N/A | Standard Duty |
| 1964 | Ford | F-100 | 3.6L | L6 | N/A | For Holley Distributor. |
| 1964 | Ford | F-100 | 4.3L | L6 | N/A | For Holley Distributor. |
| 1964 | Ford | F-250 | 3.6L | L6 | N/A | For Holley Distributor. |
| 1964 | Ford | F-250 | 4.3L | L6 | N/A | For Holley Distributor. |
| 1964 | Ford | F-350 | 3.6L | L6 | N/A | For Holley Distributor. |
| 1964 | Ford | F-350 | 4.3L | L6 | N/A | For Holley Distributor. |
| 1963 | Ford | F-100 | 3.6L | L6 | N/A | For Holley Distributor. |
| 1963 | Ford | F-100 | 4.3L | L6 | N/A | For Holley Distributor. |
| 1963 | Ford | F-250 | 3.6L | L6 | N/A | For Holley Distributor. |
| 1963 | Ford | F-250 | 4.3L | L6 | N/A | For Holley Distributor. |
| 1963 | Ford | F-350 | 3.6L | L6 | N/A | For Holley Distributor. |
| 1963 | Ford | F-350 | 4.3L | L6 | N/A | For Holley Distributor. |
| 1962 | Ford | Econoline | 2.8L | L6 | N/A | Standard Duty |
| 1962 | Ford | Econoline | 2.4L | L6 | N/A | Standard Duty |
| 1961 | Ford | Econoline | 2.4L | L6 | N/A | Standard Duty |
| 1958 | Ford | F-100 | 3.6L | L6 | N/A | Standard Duty |
| 1958 | Ford | F-250 | 3.6L | L6 | N/A | Standard Duty |
| 1958 | Ford | F-350 | 3.6L | L6 | N/A | Standard Duty |
| 1957 | Ford | F-100 | 3.6L | L6 | N/A | Standard Duty |
| 1957 | Ford | F-250 | 3.6L | L6 | N/A | Standard Duty |
| 1957 | Ford | F-350 | 3.6L | L6 | N/A | Standard Duty |
| 1956 | Ford | F-100 | 4.4L | V8 | N/A | Standard Duty |
| 1956 | Ford | F-100 | 3.6L | L6 | N/A | Standard Duty |
| 1956 | Ford | F-250 | 4.4L | V8 | N/A | Standard Duty |
| 1956 | Ford | F-250 | 3.6L | L6 | N/A | Standard Duty |
| 1956 | Ford | F-350 | 3.6L | L6 | N/A | Standard Duty |
| 1955 | Ford | F-100 | 3.9L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-100 | 4.4L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-100 | 3.6L | L6 | N/A | Standard Duty |
| 1955 | Ford | F-100 | 4.2L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-250 | 3.9L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-250 | 4.4L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-250 | 4.2L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-250 | 3.6L | L6 | N/A | Standard Duty |
| 1955 | Ford | F-350 | 4.2L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-350 | 3.6L | L6 | N/A | Standard Duty |
| 1955 | Ford | F-350 | 4.4L | V8 | N/A | Standard Duty |
| 1955 | Ford | F-350 | 3.9L | V8 | N/A | Standard Duty |
| 1954 | Ford | F-100 | 3.9L | V8 | N/A | Standard Duty |
| 1954 | Ford | F-100 | 3.6L | L6 | N/A | Standard Duty |
| 1954 | Ford | F-250 | 3.6L | L6 | N/A | Standard Duty |
| 1954 | Ford | F-250 | 3.9L | V8 | N/A | Standard Duty |
| 1954 | Ford | F-350 | 3.9L | V8 | N/A | Standard Duty |
| 1954 | Ford | F-350 | 3.6L | L6 | N/A | Standard Duty |
| 1953 | Ford | F-100 | 3.5L | L6 | N/A | Standard Duty |
| 1953 | Ford | F-100 | 3.9L | V8 | N/A | Standard Duty |
| 1953 | Ford | F-250 | 3.9L | V8 | N/A | Standard Duty |
| 1953 | Ford | F-250 | 3.5L | L6 | N/A | Standard Duty |
| 1953 | Ford | F-350 | 3.9L | V8 | N/A | Standard Duty |
| 1953 | Ford | F-350 | 3.5L | L6 | N/A | Standard Duty |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.