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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £4.99 | 2 to 4 working days |
| Next Day | £15.54 |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
Product Number: 51386
The SIP 51386 is a 1/2" x 3/8" BSP reducing bush designed to allow connection of two pieces of equipment, piping or hoses — such as compressors, air tools and air hoses — that have different diameter connection types. It is suited to professional and commercial workshop environments where reliable, leak-free air line fittings are essential.
Manufactured from heavy-duty hardened steel, this reducing bush is built for increased durability and long service life across a variety of working environments. The component is interchangeable with machinery from leading brands, and SIP recommend referencing the relevant equipment manual to confirm suitability prior to installation.
The fitting carries BSP (British Standard Pipe) thread sizing of 1/2" x 3/8", making it a standard reducing adaptor for connecting mismatched threaded air line components. Its hardened steel construction ensures it withstands the pressures and demands of sustained professional use without premature wear.
This reducing bush is supplied as a single fitting. SIP Industrial are machinery specialists whose catalogue spans welding, air compressors and tools, power, cleaning, automotive, heating and more — making SIP spares and fittings straightforward to source across a wide range of compatible equipment.
Additional Information:
The SIP 1/2" x 3/8" Reducing Bush is manufactured from heavy-duty hardened steel, designed for sustained professional and commercial use and interchangeable with leading brands.
Robust 1/2" x 3/8" BSP reducing bush component
Manufactured from ultra heavy-duty hardened steel
Interchangeable with machinery from leading brands
Reference your SIP manual for further information
Convenient and superb value-for-money
SIP Industrial are machinery specialists, with the SIP catalogue of products including welding, metalwork, Air compressors and tools, power, cleaning, charging, heating, automotive, and more.
About PartsForMachines:
PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| ITEM NO | 51386 |
|---|---|
| Adaptor | Reducing Bush |
| End Fitting | 1/2" x 3/8" |
| Pack Height (mm) | TBC |
| Pack Width (mm) | TBC |
| Pack Depth (mm) | TBC |
| Pack Gross (g) | <1000 |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £4.99
Next Day Delivery Available
Delivery Estimate: 2 to 4 working days
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| Technical Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | AI02-00342 | 07591 | 06713 | 06781 | 07197 | 02139 | 02143 | 02145 | 02146 | 04947 | 02341 | 04090 | 06298 | 02068 | 02069 |
| Type | Filter | Disc | Spare Part | Grip | Kit | Gun | Gun | Gun | Gun | Kit | Coupler | Union | Table | Wheel | Wheel |
| Size | 100mm | ||||||||||||||
| Drive | 1/4" | ||||||||||||||
| Size Range | 51-100mm | ||||||||||||||
A. The SIP 51386 is a reducing bush with a BSP fitting size of 1/2" x 3/8". It is designed to connect two components with different diameter threaded connections, such as compressor outlets, air tools and air hoses.
A. The SIP 51386 reducing bush is manufactured from heavy-duty hardened steel, providing increased durability and a long service life suitable for sustained professional and commercial use.
A. The SIP 51386 is designed to connect compressors, air tools and air hoses that have different diameter connection types. It is interchangeable with machinery from leading brands. SIP recommend referencing your equipment manual to confirm suitability for your specific application.
A. WhatsApp us on 07754 288583 with photos of the item and packaging, and we will resolve the issue in line with our returns policy.
A. Yes — see the linked spares and consumables on the product page, or contact us with your machine model.
A. We accept all major credit and debit cards, along with PayPal.
A. Standard UK mainland delivery is 3–5 working days. Next-day delivery is available on most products and will appear as an option at checkout where eligible.
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