
IAT-1003 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $19.95 | Condition is New other (see details), 1949-1955 Henry J Hudson Nash Studebaker Willys NOS Auto-Lite DISTRIBUTOR CAP, shipping cost = $11.85 | 99.8% |
![]() | $18.95 | Top Pick! Condition is New other (see details), AUTO-LITE IAT-1003 DISTRIBUTOR CAP 6 CYLINDER NOS, shipping cost = $16.45 | ![]() |
![]() | $25.00 | Condition is New other (see details), 1950 Studebaker 1950 Hudson Auto Lite Distributor Cap IAT 1003 Nos, shipping cost = $11.95 | 100.0% |

Auto-Lite IAT-1003 Tune Up Kit for 1948-1965 Chris-Craft Marine Engines with Prestolite Spark Plugs
The Auto-Lite IAT-1003 tune up kit is specifically designed for use with 1948-1965 Chris-Craft marine engines that utilize Prestolite spark plugs. This comprehensive kit includes all the essential components required for a thorough engine tune-up, ensuring optimal performance and longevity.
Beginning with the heart of the ignition system, this kit comes equipped with a set of six (6) new, high-performance Prestolite spark plugs. These plugs are meticulously engineered to provide superior ignition and combustion efficiency, enhancing fuel economy and reducing exhaust emissions. Each plug features a fine-threaded design for easy installation and a durable, vitreous ceramic insulator for enhanced heat transfer and longevity.
The kit also includes four (4) new, heavy-duty, copper core ignition points. These points are designed to provide consistent and reliable ignition, even in harsh marine environments. Their heavy-duty construction ensures minimal wear, reducing the need for frequent replacements.
To further enhance the ignition system, the kit includes a new condenser. This crucial component plays a vital role in the proper functioning of the ignition system, ensuring a stable and consistent electrical charge. The new condenser is specifically engineered to provide superior performance and reliability, ensuring that your marine engine runs smoothly and efficiently.
Additionally, the kit comes with a new distributor cap and rotor. These components are essential for the proper distribution of spark energy to each cylinder. The new distributor cap and rotor are designed to provide improved sealing, ensuring a consistent and reliable spark, while their durable construction ensures long-lasting performance.
Lastly, the kit includes new distributor O-rings and gaskets, as well as a set of new, high-quality, copper-alloy, non-seizing, and corrosion-resistant condenser and distributor points terminals. These terminals are designed for easy installation, ensuring a secure connection and reliable performance.
In conclusion, the Auto-Lite IAT-1003 tune up kit for 1948-1965 Chris-Craft marine engines with Prestolite spark plugs is the perfect solution for boat owners seeking to maintain their engines in peak condition. With its comprehensive selection of high-quality components, this kit is designed to provide superior ignition performance, reliability, and longevity, ensuring that your marine engine runs smoothly and efficiently for years to come.
Pros and Cons of buying a Auto-Lite IAT-1003 Tune Up Kit for 1948-1965 Chris-Craft Marine Engines
1. Pros:a) Compatibility: This tune up kit is specifically designed for Chris-Craft marine engines manufactured between 1948 and 1965, ensuring a perfect fit and function.
b) Complete Kit: The IAT-1003 includes all the necessary components for a complete tune up, such as spark plugs, points, condensers, distributor caps, and rotors.
c) Reputation: Auto-Lite is a well-known and trusted brand in the automotive and marine industries, providing high-quality parts and reliable performance.
d) Cost-Effective: Purchasing a complete tune up kit can save time and money compared to buying individual components separately.
2. Cons:a) Availability: While the IAT-1003 is available through various online retailers and marine parts stores, it may not be as easily accessible as more common tune up kits or components.
b) Adjustments: Depending on the condition of the engine and specific performance requirements, some adjustments to the tune up components may be necessary, which could add additional time and effort.
3. Conclusion:The Auto-Lite IAT-1003 Tune Up Kit for 1948-1965 Chris-Craft Marine Engines offers several advantages, including compatibility, completeness, reputation, and cost-effectiveness. However, potential drawbacks include limited availability and the possibility of needing adjustments. Ultimately, if you own a Chris-Craft marine engine within the specified timeframe, investing in a complete tune up kit like the IAT-1003 can save time, money, and ensure optimal engine performance.
Details:
Fits 1948-1965 chris-craft gray Marine 6 cyl with an Auto-lite/prestolite i#iat-4009, iat-4013,a,b,c,d iat-6001 distributors. Nos Auto-lite 4-1/iat-1016 ignition rotor. Nos Auto-lite 1-23/IQ-3028gs contact points. Nos Auto-lite IAT-1003 copper insert 6 cyl distributor cap with made in USA on top and inside.
specifications inboardfuel:
- for models: Marine
- for years: 1948–1965
- brand: Auto-lite
- mpn: Iat-1003
- country/region of manufacture: United States
offer inboardfuel:
- sold #: 18
- prices: $18.95–$25.00
- item condition: New other (see details)
- in stock #: 3
- availability: in stock
- started: june 16, 2025
- options: ship-to-home
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
seller inboardfuel:
- city: wilkes-barre, pennsylvania
- rating: 100.0%
- # reviews: 25446
payments inboardfuel:
- other
- credit card: discover
- wallet: google-pay
returns inboardfuel:
- policy: returns accepted
- time: 30 days
- paid by: buyer
shipping inboardfuel:
- transit: 4-9 days
- service: usps priority mail
- carrier: usps
- type: calculated
- class: expedited
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