GP 1" Engine Shaft for GX390 B18 Gear Box
Hurry up, only 2 items left in stock.
- Not eligible for free shipping. This item has its own flat shipping rate, shown at checkout.
- FREE local pickup at Oregon City shop
General Pump YGR-1000 Gear drive 2.2 to 1, 11-18hp with 1" shaft
Compact design with easy mount, and universal flange for quick and direct coupling to a wide range of engines.
Oil bath lubrication combined with premium quality, hardened steel helical gears for quiet operation and extended life.
The oversized bearing system is self-aligning. Reduces load on motor bearings and pump bearings.
Reversible mounting for right- or left-hand drive gas engines. Includes reversible dip stick and oil-level sight glass.
Specifications:
- Drive ratio: 2.176:1
- Horsepower: 11-18 hp
- Input motor shaft: 1" (25.4mm)
- Output pump shaft: 24mm
- Motor flange: J609A
- Pump flange: fits 47, 47ss, and 66 series general pumps.
- Oil grade: SAE 90 gear lube
- Oil capacity: 10 oz.
Weight: 5.8 lbs.
Fits the following motors:
GX390
GX340
GX270
CRX420
Predator420
About Expert Power Wash
Expert Power Wash is a family-owned pressure washing equipment shop in Oregon City, OR, run by Tim and Kristina. Before we built equipment, we ran our own pressure washing business for more than ten years — so the parts and chemicals on our shelves are the ones we trust on real jobs.
Our storefront stocks thousands of parts, chemicals and supplies, most in-stock orders ship the same day, and when you call 503-403-6185 you talk to people who have run this gear.
Shipping & Pickup
This item isn't eligible for free shipping. Because of its size or weight, it has its own flat shipping rate, shown at checkout before you pay. Orders placed by 2pm Pacific, Monday–Thursday, ship the same day.
FREE local pickup at our Oregon City shop, Monday–Thursday 8am–4pm.
Returns
Unused items in their original packaging can be returned within 30 days of delivery. A 20% restocking fee applies, and some items — like chemicals and cut-to-length hose — can't be returned. See our Return Policy for details.

