RedPart RP135-P Engine 3.5HP - 4.0HP Replaces Honda GX120 3/4" (19mm) Parallel Shaft Recoil Start

RedPart RP135-P Engine 3.5HP - 4.0HP
Replaces Honda GX120 3/4" (19mm) Parallel Shaft Recoil Start
Compact 133cc petrol engine powered by Loncin, designed as a direct replacement for the Honda GX120 & Loncin RP135-P Engines. Built with a 3/4" (19mm) parallel shaft and recoil start system for reliable small machinery performance.
  • 3.5HP – 4.0HP / 133cc petrol engine
  • 3/4" (19mm) parallel horizontal shaft
  • Recoil start system
  • Direct replacement for Honda GX120 Engine
  • Loncin-powered industrial engine
RedPart RP135-P Engine 3.5HP - 4.0HP | Replaces Honda GX120 | 3/4" (19mm) Parallel Shaft | Recoil Start
SKU:
RP135-P
inc VAT
ex VAT

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  • Free delivery on orders over £100
  • 45‑day returns policy

The RedPart RP135-P is a compact petrol engine powered by Loncin based on the Loncin H135 / G120F, designed as a direct replacement for the Honda GX120 Engine. It delivers reliable performance for small machinery applications, with recoil starting and low-maintenance operation.

Core Specifications

  • Power Output: 3.5HP – 4.0HP (2.6–3.0 kW @ 3600 rpm)
  • Displacement: 133 cc
  • Shaft: 3/4" (19mm) parallel horizontal
  • Starting System: recoil start
  • Torque: 7.3 Nm @ 2500 rpm

Engine Details

  • Bore × Stroke: 60 × 42 mm
  • Compression Ratio: 8.5 : 1
  • Idle Speed: 1450 ± 150 rpm

Fuel & Lubrication

  • Oil Capacity: 0.6 L
  • Fuel Consumption: 395 g/kWh
  • Oil Consumption: 6.8 g/kWh

Features:

  • Direct replacement for Honda GX120 Engine
  • Compact industrial petrol engine
  • Loncin-powered for reliable performance
  • 3/4" (19mm) parallel shaft configuration
  • Recoil start system


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