Skip to product information
JCB Backhoe Tachometer Hourmeter 704/D7231

JCB Backhoe Tachometer Hourmeter 704/D7231

SKU: NLT1A00121
$126.99 In Stock
$126.99
Sale price  $126.99 Regular price 
Ships for free in 2–4 business days.
This new aftermarket tachometer and hourmeter gauge replaces JCB 704/D7231, 704/50097, and 704/50228 for compatible 2CX, 3CX, 4CX, 5CX, 214, 215, and 217 backhoe loaders.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

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
  • JCB 2CX backhoe loader applications using the listed gauge
  • JCB 3CX backhoe loader
  • JCB 4CX backhoe loader
  • JCB 5CX backhoe loader applications using the listed gauge
  • JCB 214, 215 and 217 backhoe loaders

Product Overview

A dead RPM needle, incorrect engine-speed reading, unreadable hour display, or moisture-damaged gauge can make service tracking and operation harder. Before replacing it, inspect the sender or alternator signal, power, ground, connector, fuse, and instrument wiring.

The instrument displays engine speed and accumulated operating hours on the matching JCB electrical system. It does not create the RPM signal, and replacing it will not repair a charging-system or sender fault.

Match 704/D7231, 704/50097, or 704/50228, gauge diameter and bezel, connector and pinout, voltage, signal source, machine model, year, and serial number.

Key Features & Performance

  • Combined engine-speed and operating-hour display
  • Round gauge housing for the matching JCB dash opening
  • Multiple reference numbers for catalog comparison
  • Replacement for a failed needle, display, or internal circuit

Replaces Part Numbers

  • 704/D7231
  • 704-D7231
  • 704D7231
  • 704/50097
  • 704/50228
  • 704/50227
  • 704/38700

Common Uses

  • Restoring RPM information for safe engine operation
  • Replacing a water-damaged or unreadable instrument
  • Recovering hour tracking after power and signal checks

Technical Specifications

  • Product Type: Tachometer / hourmeter gauge
  • Equipment: Compatible JCB backhoe loaders
  • Primary Reference: 704/D7231
  • Condition: New aftermarket replacement

Installation & Fitment

  • Disconnect the battery before opening the instrument panel
  • Photograph the connector and retaining hardware
  • Test supply, ground, and RPM signal first
  • Protect the new gauge seal and avoid overtightening
  • Verify RPM against a known reading and confirm hour accumulation

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.

Frequently Asked Questions

Q: Will this fix a tachometer that reads zero? A: Only if the gauge is faulty. A missing alternator or sender signal, power, ground, or wiring fault can cause the same result.

Q: Can the old engine hours be transferred? A: Replacement hourmeters generally begin from their own stored value; record the machine hours for maintenance history.

Q: Will it fit every 3CX? A: No. JCB serial and dash revisions matter, so compare the gauge and part number.

Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.

Part Summary

keywords: JCB 704/D7231 tachometer, 704/50097 hourmeter gauge, 3CX RPM gauge replacement, JCB 214 tachometer not working, 704/50228 backhoe instrument

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.

Customers also purchased