HomeIgnition > Secondary IgnitionStandard Ignition IH-121 Ignition Condenser
Part #: IH-121

Standard Ignition IH-121 Ignition Condenser

⚙️ 65 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: International, Ford, and Mercury, Scout II, 150, 200, MS, Travelall, 100, MHC1310, MS1210, 1010, 1110, 1210, 1310, M1100, M1200, M800 Post Office, M800, MA1200, Scout, P-100, 1000D, 1100D, 1200D, 1300D, 908C, M1400, M800 Navy, 1000C, 1100C, 1200C, 1300C, Custom 500, F-100, F-250, F-350, Galaxie, LTD, Ranch Wagon, 1100B, 1200B, 1300B, 908B, P-350, Sprint, Meteor, Econoline, Custom 300, Skyliner, Custom, Club, F4, F1, F2, and F3
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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.

BrandStandard Ignition
Part NumberIH-121
Terminal TypeBlade, Eye-loop
Wire Lead Length2 7/16"

This part fits 65 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1967FordF-1003.9LL6N/AFor Holley Distributor.
1967FordF-1004.9LL6N/AFor Holley Distributor.
1967FordF-2503.9LL6N/Aw/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD
1967FordF-3503.9LL6N/Aw/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD
1967FordLTD3.9LL6N/Aw/o Thermactor Emission; Standard Duty
1966FordF-1003.9LL6N/AFor Holley Distributor.
1966FordF-1004.9LL6N/AFor Holley Distributor.
1966FordF-2503.9LL6N/Aw/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD
1966FordF-3503.9LL6N/Aw/o Thermactor Emission; Standard Duty; Exc. Dist. No. C5TF-V, C6TF-AD
1966FordLTD3.9LL6N/Aw/o Thermactor Emission; Standard Duty
1965FordF-1003.9LL6N/AFor Holley Distributor.
1965FordF-1004.9LL6N/AFor Holley Distributor.
1965FordF-2503.9LL6N/AStandard Duty; Exc. Dist. No. C5TF-V, C6TF-AD
1965FordF-3503.9LL6N/AStandard Duty; Exc. Dist. No. C5TF-V, C6TF-AD
1965FordLTD3.9LL6N/AStandard Duty
1964FordF-1003.6LL6N/AFor Holley Distributor.
1964FordF-1004.3LL6N/AFor Holley Distributor.
1964FordF-2503.6LL6N/AFor Holley Distributor.
1964FordF-2504.3LL6N/AFor Holley Distributor.
1964FordF-3503.6LL6N/AFor Holley Distributor.
1964FordF-3504.3LL6N/AFor Holley Distributor.
1963FordF-1003.6LL6N/AFor Holley Distributor.
1963FordF-1004.3LL6N/AFor Holley Distributor.
1963FordF-2503.6LL6N/AFor Holley Distributor.
1963FordF-2504.3LL6N/AFor Holley Distributor.
1963FordF-3503.6LL6N/AFor Holley Distributor.
1963FordF-3504.3LL6N/AFor Holley Distributor.
1962FordEconoline2.8LL6N/AStandard Duty
1962FordEconoline2.4LL6N/AStandard Duty
1961FordEconoline2.4LL6N/AStandard Duty
1958FordF-1003.6LL6N/AStandard Duty
1958FordF-2503.6LL6N/AStandard Duty
1958FordF-3503.6LL6N/AStandard Duty
1957FordF-1003.6LL6N/AStandard Duty
1957FordF-2503.6LL6N/AStandard Duty
1957FordF-3503.6LL6N/AStandard Duty
1956FordF-1004.4LV8N/AStandard Duty
1956FordF-1003.6LL6N/AStandard Duty
1956FordF-2504.4LV8N/AStandard Duty
1956FordF-2503.6LL6N/AStandard Duty
1956FordF-3503.6LL6N/AStandard Duty
1955FordF-1003.9LV8N/AStandard Duty
1955FordF-1004.4LV8N/AStandard Duty
1955FordF-1003.6LL6N/AStandard Duty
1955FordF-1004.2LV8N/AStandard Duty
1955FordF-2503.9LV8N/AStandard Duty
1955FordF-2504.4LV8N/AStandard Duty
1955FordF-2504.2LV8N/AStandard Duty
1955FordF-2503.6LL6N/AStandard Duty
1955FordF-3504.2LV8N/AStandard Duty
1955FordF-3503.6LL6N/AStandard Duty
1955FordF-3504.4LV8N/AStandard Duty
1955FordF-3503.9LV8N/AStandard Duty
1954FordF-1003.9LV8N/AStandard Duty
1954FordF-1003.6LL6N/AStandard Duty
1954FordF-2503.6LL6N/AStandard Duty
1954FordF-2503.9LV8N/AStandard Duty
1954FordF-3503.9LV8N/AStandard Duty
1954FordF-3503.6LL6N/AStandard Duty
1953FordF-1003.5LL6N/AStandard Duty
1953FordF-1003.9LV8N/AStandard Duty
1953FordF-2503.9LV8N/AStandard Duty
1953FordF-2503.5LL6N/AStandard Duty
1953FordF-3503.9LV8N/AStandard Duty
1953FordF-3503.5LL6N/AStandard 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:

1230909719720022042315963420801360700C14-21150-1528580345H1104D9PJ12300AF591FA66FA66SBG111GAA1037

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.