Honda 688 CC Air Cooled 4 Stroke OHV V-Twin Engine

SKU# GX630RHXQZB3
4.4 out of 5 Customer Rating
See Price in Cart
Discounted Price Shown in Cart
Discounted Price Shown in Cart
Sale:
Was:
Out of Stock
Delivery to -
- Est. Arrival - Est. Ship - Est. Arrival - Get it as soon as {0} Edit location
Add Zip Code
Pick Up at
Store Address -
Available within 4 hours
Contact Store:
Est. Email Delivery: within 24 hours
Made In USA
  Free Shipping (Ground shipping to lower 48)
Honda 688 CC Air Cooled 4 Stroke OHV V-Twin Engine
See Price in Cart
Discounted Price Shown in Cart
Discounted Price Shown in Cart
Sale:
Was:
Out of Stock
Selected Delivery Method: Shipping
Shipping
Get it as soon as {0}
Pick up in Store
Available within 4 hours
Not Available for Pick Up
Qty
Secure Checkout
Affirm
Pay as low as $92/mo.
with Affirm

Product Details

Honda 688 CC Air Cooled 4 Stroke OHV V-Twin Engine

Description

Honda 688 CC Air Cooled 4 Stroke OHV V-Twin Engine

The Honda GX630 688cc Horizontal Shaft Electric Start Engine delivers dependable high-output performance for commercial, industrial, and residential equipment applications. Designed with a powerful V-twin 4-stroke OHV configuration, this engine produces 20.8 HP at 3600 RPM, making it ideal for generators, pressure washers, tractors, construction equipment, and other demanding machinery. The 1 Inch keyed horizontal shaft with 1/4 Inch keyway provides secure power transfer and compatibility across various applications. Advanced engineering features including variable timing digital CDI ignition and a two-barrel inner-vent carburetor improve fuel efficiency while maintaining strong, consistent performance. A cast iron cylinder sleeve, pressure lubrication system, and dual-element air cleaner support long-term durability in harsh environments. The electric start system and automatic mechanical decompression simplify startup, while noise-reducing components and low-vibration operation improve user comfort. CARB and EPA compliance ensures lower emissions without sacrificing reliable Honda-engineered power and productivity.

Features

688cc V-twin OHV engine delivers dependable 20.8 HP performance for demanding equipment
Electric start system enables fast and convenient engine startup operation
Variable timing digital CDI ignition improves fuel efficiency and throttle response
Two-barrel carburetor enhances fuel metering for smoother engine performance and economy
Cast iron cylinder sleeve increases durability during heavy-duty continuous operation applications
Pressure lubrication system supports long engine life under demanding workloads
Automatic mechanical decompression system simplifies starting in varying operating conditions
CARB and EPA compliant design delivers reduced emissions with reliable power output

Specifications

Brand Name
Honda
Assembled Weight (lbs)
96.8
Country of Origin
United States
Cylinder Count
2
Dry Weight (lbs)
97
Engine
4-Stroke OHV Petrol Engine 90 Deg V-Twin Design Horizontal Shaft
Engine Displacement (cc)
688
Engine Starting Method
Electric
Engine Torque (ft-lbs)
35.6

MFG Part # (OEM)
GX630RHXQZB3

Material
Cast Iron Sleeve
Package Contents
Gas Engine

Product Condition
New

Restrictions
CA Prop 65
Shaft Diameter (in)
1
Shaft Length (in)
2.875
Shaft Rotation
Counterclockwise

UPC
407063000228

Warranty Type
3 Years
Weight (lbs)
96.8

Customer Reviews

From The Manufacturer