Browse Categories
Browse by Manufacturer

Robin Subaru Horizontal Engine 7 HP EX21 OHC 2-13/16" Tapered Shaft #EX210D52251

<< Previous in Robin Subaru Horizontal Shaft Next in Robin Subaru Horizontal Shaft >>
BNE PRICE: $299.00
what does this mean?

Manufacturer: Robin Subaru
Part Number: EX210D52251
free shipping

7 HP Robin OHC Engine
SAE tapered 2-13/16" shaft, tapped 5/16".
Dual ball bearing PTO, cast iron cylinder liner
Recoil Starter
Low profile air filter. No tank, no muffler
Generator replacement engine
3 year warranty
Model EX210D52251
35 lbs

Features & Benefits:
Chain-Driven Overhead Cam
Chain-driven Overhead Cam design offers superior power and performance with an automatic decompression system to reduce the required pulling force by 30 to 40 percent, and ensure starting on the first pull. EX engines start instantly – even at temperatures as cold as -10 degrees C – without any perceptible kickback. 

Dual Ball Bearing Crankshaft Support
Dual ball bearing crankshaft support offers maximum stability under demanding loads.

Spheroidal Graphite Cast-Iron Crankshaft
The crankshaft is made of spheroidal graphite cast iron, and the crank pin is high-frequency induction hardened. Both the crank sprocket used to drive the chain, and the gear used to drive the governor gear, are pressed on the output end of the shaft.

Heavy-Duty Piston Rings and a Cast-Iron Cylinder Liner
Heavy-duty piston rings coupled with a cast-iron cylinder liner resist wear and ensure a long engine life.

Case-Hardened Steel Timing Chain
Case-hardened steel timing chain allows for precision timing and maximum durability.

Pent-Roof Combustion Chamber
Pent-roof combustion chamber enables optimum intake and exhaust valve placement for maximum engine performance and efficiency.

Automotive Collets and Forged Steel Valve Retainers
Subaru EX engines use automotive quality collet valve retainers for longer life.

Hardened Steel Rocker Arms
Hardened steel rocker arms with precision tappet adjusters are used for greater durability and reduce service requirements.

Patent-Pending Connecting Rod Dipper
The EX lubrication system begins with a patent-pending oil scoop to project the oil to the chain.

Special Cooling Fins Cast Into Block
Cooling fins are cast into both the inside and the outside of the crankcase to utilize every possible cooling area.

Aluminum Alloy Die-Cast Connecting Rod
The connecting rod is a specially heat-treated aluminum alloy die-casting. Its large and small ends function as bearings. A splasher built into the connecting rod lubricates by splashing engine oil. The piston is an aluminum alloy casting with grooves for mounting compression and oil rings.

Mounting Base Cooling Fins
The unique Subaru cooling system extends to the underside of the mounting base. Air is forced over special cooling fins at the bottom of the engine for maximum cooling.

Cylinder Head 360-Degree Cooling
Head cooling is critically important to long engine life. The Overhead Cam design allows for 360-degree air flow around both the exhaust and intake valve stem areas.

Patent-Pending Cylinder Cooling Fins
Air is forced over the large slanted cooling fins on the cylinder for improved cooling performance. This design is patent-pending.

Patent-Pending Valve Cover Design
A patent-pending rocker cover design constantly supplies an optimum amount of oil to the cam shaft and rocker arm even if the engine is inclined.

Patent-Pending Breather System
A patent-pending breather system with a pre-separation
passage prevents oil from spouting even if the engine is inclined.

Hot Spark Ignition System
The ignition system is a transistor controlled magneto with the ignition timing set at 23 degrees before top dead center. The magneto consists of a flywheel and ignition coil. To ensure the easy startability of the engine, the step advancing ignition timing system is incorporated in the ignition coil. This system enables the engine to have basically two different ignition timings according to the engine speed.

Optimized-Capacity Rigid Muffler
Optimized-capacity rigid muffler and 33 percent fewer moving valve train parts than OHV designs, reduce mechanical noise levels a full 2 decibels below competitive models.

NO Special Tools Needed
Even though the EX series of engines bring the latest technology, performance, and durability to the industrial air cooled engine market, there are no special tools required to work on them. Most shop tools that small engine mechanics currently own will also work on these engines for service or complete tear down. Subaru engineers achieved their commitment to 'keep it simple', while utilizing the latest technology.

Three-Year Limited Warranty
Subaru provides a three-year limited warranty. See warranty policy for details.

  Class Air Cooled 4 Stroke Overhead Cam Chain Drive Gasoline Engine
  Shaft Horizontal
  Cylinders 1
  Displacement 211
  Cycles 4
  Fuel Unleaded Gasoline
  Max HP/RPM (Gross HP) 7.0/4000
  Max KW/RPM 5.1/4000
  Continuous HP/RPM 5.0/3600
  Max Torque ftlbs/RPM 10.26/2500
  Max Nm/RPM 13.9/2500
  Bore x Stroke mm 67 x 60
  Compression Ratio 8.5:1
  Starter Recoil
  Dry Weight lbs 35
  Dry Weight kg 16
  Length inches (mm) 311
  Width inches (mm) 366
  Height inches (mm) 335
  Fuel Capicity US Gallons (ltrs) 0.95
  Fuel Capacity Fl oz (ltrs) 3.6
  Lube Type Engine Oil SAE 10W-30, 20W, 30W
  Oil Capicity Fl oz (ltrs) 20.28
  Air Cleaner Dual Element
  Muffler (type) Low-Noise Rigid Type
  Ignition System Solid State Transistorized Magneto
  Lube System Splash
  Oil Sensor Low Oil Level Optional
  Emission Rating Tier III EPA/CARB
  Color Black Standard
  Governor System Mechanical Flyweight
  Fuel System Carbureted Float
Shopping Cart
Your cart is empty.
           MORE INFO