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SKU:
NLT1W00831
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GM HEI Ignition Control Module LX340 for 1989-1995 C/K Trucks
$29.99
In Stock
$29.99
Sale price
$29.99
Regular price
This distributor-mounted ignition control module replaces LX340 on compatible 1989-1995 Chevrolet C1500, C2500, and C3500 truck applications.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- 1989-1995 Chevrolet C1500 with matching HEI distributor
- 1989-1995 Chevrolet C2500 with matching HEI distributor
- 1989-1995 Chevrolet C3500 with matching HEI distributor
- Related GM C/K, R/V, van, and SUV applications only when the distributor and LX340 interchange match
Product Overview
A truck that loses spark when hot, stalls suddenly, or will not trigger the coil can have a failing ignition module. Pickup-coil output, coil resistance, power, grounds, ECM bypass signal, connectors, and distributor shaft condition should be tested before replacement.
The module switches ignition-coil current inside the distributor and generates heat in normal operation. Correct heat-sink compound beneath the module is essential; dielectric grease on the connector is not a substitute for thermal compound under the metal base.
Key Features & Performance
- Distributor-mounted HEI ignition switching
- Crosses to Standard-style LX340
- For selected late-1980s and 1990s GM truck systems
- Addresses verified heat-related or no-trigger failure
- New aftermarket module
Replaces Part Numbers
- LX340
Common Uses
- Repairing a hot-stall with confirmed loss of ignition trigger
- Replacing a module with failed switching electronics
- Servicing a damaged distributor after pickup and coil testing
Technical Specifications
- Product Type: Distributor Ignition Control Module
- Primary Application: GM HEI distributor systems using LX340
- Package Quantity: 1 module
- Condition: New
- Replacement Type: Aftermarket
- Reference: LX340
- System: HEI electronic ignition
- Mounting: Inside / on distributor base
- Thermal Interface: Heat-sink compound required
- Condition: New aftermarket
Installation & Fitment
- Disconnect battery power and mark distributor wiring
- Test pickup coil, ignition coil, power, ground, and connectors
- Clean the mounting pad and apply a thin complete layer of specified heat-sink compound
- Tighten evenly, reconnect, set timing as required, and hot-test the engine
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, connector, dimensions, installed options, and previous repairs can affect fitment. Compare the original component and reference information before purchase.
Frequently Asked Questions
Q: Can the module fail only when hot? A: Yes. Internal electronics may open as temperature rises and work again after cooling.
Q: Why is heat-sink compound required? A: It transfers heat from the module into the distributor base; without it, the replacement can overheat quickly.
Q: How do I confirm this is the correct part? A: Match LX340, vehicle engine and year, distributor number, module footprint, connector terminals, pickup-coil leads, screw spacing, and ignition schematic.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket item. Brand, model, and part numbers are used only to identify compatible applications.
Part Summary
keywords: LX340 ignition control module, Chevy C1500 hot stall module, GM HEI no spark repair, C2500 distributor module, 1989-1995 C3500 ignition
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.