Description
Overview:
The Piston Assembly R4 (89.00mm) for M.A.G engines is a genuine replacement part designed to restore correct sealing, compression, and performance in the top end of the engine. Built for dependable service in demanding environments, it is engineered to meet the original specifications of the M.A.G 1045 SRL series, including the SRL X 100 variant. This OEM component (No. 9020 164) offers a precise 89.00mm diameter for the correct bore, helping maintain smooth running and reliable power delivery. As unused old stock, it may show light tarnishing or cosmetic ageing, but remains mechanically sound and suitable for returning vintage machinery to working order. Ideal for tradespeople, DIY owners, and workshops maintaining M.A.G-powered tools and equipment.
Key Features:
- Genuine M.A.G part for assured compatibility and fit (OEM No. 9020 164)
- 89.00mm diameter for precise bore matching and correct compression
- Robust construction for durability under heavy-duty use
- Made to original factory tolerances to maintain engine performance
- Direct replacement for straightforward installation with no modifications
- Supports efficient combustion, easier starting, and stable idle
- Suitable for maintaining or restoring vintage M.A.G engines
- Unused old stock: functional new part with possible minor cosmetic ageing
- Reliable choice for long-term service in professional or domestic settings
- Helps reduce blow-by and oil consumption when paired with a sound cylinder
Typical Applications:
Used in M.A.G 1045 SRL engines found on light construction and garden machinery where dependable, air-cooled engine performance is required. Suitable for machines such as compact site tools, small plant, and grounds-care equipment that rely on stable compression and efficient combustion to deliver consistent output during daily use.
Also known as:
Piston kit, engine piston assembly, cylinder piston, R4 piston, 89mm piston, top-end piston assembly, OEM piston replacement, MAG piston component, piston repair part.
Fits Models:
M.A.G 1045 SRL
Product Specifications
| L&S Part No. | 9020 164 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | M.A.G |
| Unit of Sale | 1 |
| Applications | M.A.G 1045 SRL |
| Machine Type | Tractors |
| Fits Models | M.A.G 1045 SRL |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
