Udor S162 Heavy-Duty Diaphragm Pump Reduction Gearbox

The Udor S162 is a heavy-duty gear reduction unit engineered to couple Udor Delta series diaphragm pumps to petrol or diesel engines with a 1″ short shaft. With a robust 6.25:1 reduction ratio and support for engines up to 18 HP, the S162 delivers reliable speed conversion for demanding agricultural spraying, turf care, and pest control applications. Manufactured in Italy by Udor S.p.A., this gearbox features durable aluminium construction with precision-machined gears for long service life under continuous operation.

Specifications

Model	S162
Udor USA Part Number	5034.B5
Type	Reduction Gearbox (Engine to Pump)
Reduction Ratio	6.25:1
Max Engine Power	18 HP (13.4 kW)
Engine Shaft	1″ short
Oil Capacity	~0.83 L (28 oz)
Weight	~4.5 kg (10 lbs)
Origin	Manufactured in Italy by Udor S.p.A.

Compatible Pumps

The S162 is designed for use with the following Udor diaphragm pump models:

• Udor DELTA 100
• Udor DELTA 125
• Udor DELTA 140
• Udor DELTA 170

These pumps are widely used in lawn care, agricultural spraying, pest control, and tree/orchard spraying systems where engine-driven pump units are required.

Applications

• Agricultural crop spraying rigs and boom sprayers
• Orchard and vineyard spraying systems
• Lawn care and turf management spray units
• Pest control and weed control vehicles
• Engine-driven diaphragm pump assemblies for mobile spraying
• Custom-built spray trailers and UTV-mounted units

Key Features

• 6.25:1 reduction ratio converts high engine RPM to optimal pump speed
• Supports engines up to 18 HP — suitable for Honda GX, Briggs & Stratton Vanguard, and similar industrial engines
• 1″ short engine shaft connection — direct-mount to standard small engine output shafts
• Precision-machined gear train for smooth, quiet operation and minimal power loss
• Oil-bath lubrication (28 oz capacity) ensures consistent cooling and long gear life
• Robust aluminium housing — lightweight yet durable for mobile applications
• Compatible with the full Udor Delta diaphragm pump range (100 to 170 series)

Technical Documents

• Udor S162 Gearbox Documents
• All Udor Delta Pump Documents

Parts & Service

AES Waterblasters is the sole New Zealand distributor of Udor pumps and accessories. We carry genuine Udor spare parts for the S162 gearbox including seals, gaskets, bearings, and gears. For parts enquiries, technical support, or to order a replacement S162 gearbox, contact us on 09 271 4782 or email info@aesblasters.co.nz.

Related Products

Compatible Udor Delta diaphragm pumps for use with the S162 gearbox:

• Udor Delta Diaphragm Pump Range
• All Udor Pumps & Accessories