Product Description
Reconditioned Isuzu D-Max / MU-X Rear Diff Centre (3.7 Ratio with Harrop ELocker)
Is your Isuzu D-Max or MU-X experiencing rear differential whine, worn bearings, or are you looking to upgrade to ultimate selectable off-road traction? Rebuilt by the experienced 4WD drivetrain specialists at Gympie 4WD Spares, this reconditioned 3.7 ratio rear differential centre comes pre-fitted with a heavy-duty Harrop ELocker. Precision-overhauled to meet and exceed OEM specifications, this unit delivers quiet highway running and instant, 100% electromagnetic selectable rear differential lockup at the flip of a switch in steep or muddy terrain.
Vehicle & Product Specifications
| Vehicle Compatibility | Isuzu D-Max & MU-X Series GT4 (3.7 Ratio Rear Axle) |
| Differential Position | Rear Differential Centre |
| Differential Type | Harrop ELocker (Electromagnetic Selectable Locker) |
| Gear Ratio | 3.70:1 (3.7 Ratio) |
| Assembly Type | Diff Only |
| Condition | Professionally Reconditioned Unit |
| Price (Excl. Core Deposit) | $3,650.00 |
| Warranty | 12 Months / 20,000 km Warranty |
| Exchange Deposit | $750 Refundable Core Charge |
Rebuild Standards & Key Features
- Complete Overhaul: Dismantled, clean-inspected, and fitted with new gear sets, Japanese bearings and oil seals.
- Harrop ELocker Integration: Overhauled and bench-tested specifically to integrate seamlessly with the Harrop electromagnetic locking mechanism for instantaneous 100% drive to both rear wheels.
- Precision Workshop Setup: Crown wheel backlash, bearing preloads, and gear meshing contact patterns are set by expert driveline technicians to strict workshop tolerances.
- Heavy-Duty Reliability: Built using premium Japanese bearings and oil seals, and high-grade internal components engineered for demanding touring, towing, and off-road driving.
Why Choose Gympie 4WD Spares?
- 4WD Drivetrain Specialists: Decades of technical experience in reconditioning 4WD differentials, gearboxes, and transfer cases.
- Rigorous Quality Control: Every unit undergoes total dismantling, chemical hot-washing, component stress evaluation, and exact bench setup.
- Australia-Wide Daily Freight: We dispatch reconditioned differentials and driveline assemblies daily to homes, commercial properties, and workshops nationwide.
- Backed by Warranty: Supplied with 12 Month / 20,000 km warranty coverage for complete peace of mind.
Exchange Unit & Warranty Information
This product is supplied as a diff only on a mandatory exchange basis. An exchange deposit of $750 is charged upon purchase and is refunded once your matching exchange core unit is received and assessed by our workshop team.
To review core return guidelines, exchange deposit conditions, and full warranty terms, please visit our warranty and exchange info page.
Australia-Wide Freight & Technical Support
Need assistance confirming whether your Isuzu D-Max or MU-X runs a 3.7 ratio or checking Harrop ELocker wiring installation details? Gympie 4WD Spares freights reconditioned differentials nationwide daily. Contact our expert spare parts team today on (07) 5480 6024 or send an online enquiry for expert advice and a fast freight quote.
