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Description
The Classic Instruments 1955–1986 Jeep CJ Optional 2-5/8" Tachometer is a matching auxiliary instrumentation upgrade engineered specifically to complement Classic Instruments’ 1955–1986 Jeep CJ Direct Fit Electric Gauge Package. Designed to drop directly into the factory tachometer dash cutout found on 1977 and newer CJ5, CJ7, and CJ8 models (such as Renegade and Golden Eagle packages)—or custom-mounted in earlier 1955–1976 dashes—this 2-5/8" gauge combines vintage-matched styling with modern calibration, integrated shift alerting, and EFI data-logging capability.
System Architecture & Engineering Highlights
Matched Aesthetic Integration: Styled identically to the main 5-5/8" Jeep CJ cluster, ensuring uniform bezel profiles, pointer styling, and dial typography across the dashboard.
Push-Button Cylinder Calibration: Eliminates manual dip-switch guesswork by allowing straightforward push-button programming for 4-, 6-, and 8-cylinder engine signals, accommodating anything from original AMC/Jeep four- and six-cylinder engines to V8 swaps.
Full-Dial Red Shift Light Alert: Features an integrated red shift indicator that illuminates the entire gauge face red upon reaching a user-programmed RPM threshold, providing unmistakable peripheral visibility without mounting a bulky external pod.
External Warning Light & Data-Logging Outputs: Equipped with an auxiliary trigger output to drive external dash warning lamps alongside a dedicated 0.5–4.5 VDC analog output for feeding real-time RPM signals into standalone EFI systems or data loggers.
Selectable LED Illumination: Built-in LED perimeter/backlighting allows the builder to choose between Warm White (for an incandescent vintage glow) or Cool White (for crisp, modern contrast).
Technical Specification Matrix
Feature / Metric
Technical Specification Detail
Manufacturer
Classic Instruments
System Style
Optional Matching Auxiliary Electric Tachometer
Vehicle Application
1955–1986 Jeep CJ Series (CJ5, CJ6, CJ7, CJ8 Scrambler)
Gauge Diameter
2-5/8" Round
Engine Compatibility
Compatible with 4-, 6-, and 8-Cylinder Tachometer Signals
Calibration Method
Push-Button Digital Calibration
Shift Alert Feature
Integrated Full-Face Red Shift Light Illumination
Auxiliary Outputs
Warning Light Trigger Output & 0.5–4.5 VDC Analog Data-Logging Output
Illumination Options
Selectable LED Lighting (Warm White OR Cool White)
Country of Origin
Made in USA
Kit Contents Checklist
Primary Gauge: (1) 2-5/8" Jeep CJ Style Electric Tachometer
Mounting Hardware: Retaining U-Bracket / Spin-Lock Ring and Fasteners
Documentation: Installation, Wiring, and Shift-Point Programming Guide
Installation & Calibration Notes
Dashboard Cutout Fitment: On 1977–1986 Jeep CJ dashboards equipped with factory tachometer provisions (standard on Renegade and Golden Eagle trims), the 2-5/8" housing mounts directly into the existing opening. Earlier 1955–1976 dashboards lack a factory tach cutout and require drilling a 2-5/8" hole using a hole saw.
Tachometer Signal Sourcing: Connects cleanly to the negative (-) terminal of standard ignition coils, dedicated tachometer output terminals on HEI/CDI ignition boxes (such as MSD), or square-wave tachometer outputs from aftermarket EFI ECUs.
Shift-Point & LED Programming: Use the included push-button switch during initial setup to configure cylinder count, set the desired shift-light RPM activation point, and toggle between Warm White and Cool White LED backlighting.
Data-Logger Wiring: If utilizing the 0.5–4.5 VDC analog output, route the dedicated signal wire to an available 0–5V analog input channel on your data acquisition module or ECU and configure the scaling curve per the manual.
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Refund Policy
We offer a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
Eligibility for Returns
To be eligible for a return, your item must be:
In the same condition as received
Unworn or unused
With original tags attached
In its original packaging
You must also provide a receipt or proof of purchase.
How to Start a Return
To initiate a return, please contact us at jonathon@hotrodhardware.com. Once your return request is approved, you will be provided with the return address and, if applicable, an RMA (Return Merchandise Authorization) number.
Important: Items sent back without prior authorization will not be accepted.
If you have any questions regarding your return, feel free to contact us at the email above.
Damages and Issues
Please inspect your order upon delivery. If your item is defective, damaged, or if you received the wrong item, contact us immediately so we can evaluate the issue and resolve it promptly.
Exceptions / Non-Returnable Items
The following items are not eligible for return:
Custom or personalized products (including special orders)
Hazardous materials, flammable liquids, or gases
Sale items
Gift cards
If you are unsure whether your item qualifies, please contact us before initiating a return.
Exchanges
The fastest way to receive a replacement item is to return your original item (once approved) and place a new order separately.
Free Shipping Orders
Orders that qualified for free shipping are subject to deduction of the original outbound shipping cost if the item is returned.
Refunds
Once your return is received and inspected, we will notify you regarding the approval status of your refund.
If approved:
Refunds will be issued to your original payment method
Any applicable restocking fees will be deducted
Original shipping charges (if applicable) will be deducted
Return shipping costs (if arranged by Hot Rod Hardware) will be deducted
Please note:
Payment processing fees (including PayPal, Amazon Pay, or other merchant fees) are non-refundable
It may take additional time for your bank or credit card provider to process and post the refund