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WUQ 9123 RPM signal adapter with 9117 tach adapter, sealed connectors, plug-in module

WUQ

WUQ 9123 RPM Signal Adapter 9117 lighting

SKU CH-29D4-HR063

Plugs into factory ignition coil connectors and connects to the 9117 tach adapter for a reversible LS-swap installation without cutting wiring

  • Product typePlug-in Module
  • Plug-and-play install with no wiring cuts
  • Includes Auto Meter 9117 tach adapter
  • OEM-spec connectors for hassle-free LS swap
  • Sealed connector plugs directly into 9117 adapter
  • Reversible installation keeps factory wiring intact

Plug-In Module for LS Engines

This WUQ 9123 RPM signal adapter works with Auto Meter 9117 tach adapters to solve LS-swap tachometer issues. It plugs directly into factory ignition coil connectors without cutting or splicing any wiring. Installation is reversible and takes minutes instead of hours.

Uses OEM Spec Connectors

The harness uses OEM specification connectors that plug into the factory ignition coils and seal to the Auto Meter 9117 adapter. This design ensures a hassle-free connection that does not alter factory wiring or risk voiding the vehicle warranty. No tools are required for the basic connection.

Ideal for LS Swap Builders

Builders performing an LS engine swap who need a working tachometer without modifying the factory harness will benefit. It is not suited for engines that do not use the factory LS ignition coil connectors or for setups requiring a different tachometer signal interface.

How it compares

Measured against everything we stock in Plugs, Dimmers & Smart Lighting, at today’s prices. Recalculated every night.

Price $245.99
Pricier than about 94% of the 370 comparable items (median $31.99).

Specifications

Product
Product typePlug-in Module
Connectivity
Connection protocolOther

Questions about this item

What does the 9123 adapter do once it's connected to an LS engine?

It links the factory ignition coil connectors to the Auto Meter 9117 tach adapter so the tachometer reads RPM correctly without cutting or splicing any original wiring.

What connection standard does the 9123 use and what does that limit?

It uses OEM-spec sealed connectors that plug directly into the factory coil harness and the 9117 adapter, limiting installation to vehicles with those matching factory plugs.

What physical space or mounting does the 9123 require?

The plug-in module sits inline between the coil connectors and the 9117 adapter, needing only enough room in the engine bay for the sealed connectors to join without strain.

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