Description
Overview:
This Genuine Stihl piston ring is an OEM replacement designed to restore compression in small 2‐stroke Stihl engines. Sized at 34 x 1.5 mm (approx. 1.34 in x 0.06 in), it fits pistons with a 34 mm bore and a 1.5 mm ring groove. Made from high‐grade steel for heat and wear resistance, it provides a reliable seal between the piston and cylinder to maintain power, reduce blow‐by, and support clean running. Suitable for a wide range of handheld tools such as blowers, trimmers, brushcutters, and hedge trimmers, including models like SP81 and BG75. Stihl OEM part number 4137 034 3000 ensures correct fit and performance in compatible machines.
Key Features:
- Genuine Stihl OEM part for assured fit and performance (4137 034 3000)
- Size: 34 x 1.5 mm (approx. 1.34 in x 0.06 in) for 34 mm bore pistons
- Helps restore compression and engine efficiency in 2‐stroke applications
- Durable steel construction for high temperature and abrasion resistance
- Precision-made to seat correctly in the OEM piston groove
- Supports easier starting, steadier idle, and consistent power delivery
- Compatible with a wide range of Stihl trimmers, blowers, hedge trimmers, and Kombi engines
- Suitable for routine top-end refreshes and ring replacement during servicing
- Straightforward to fit for competent DIY users and professional technicians
Typical Applications:
Used during engine maintenance and rebuilds where loss of compression, hard starting, or reduced power suggests ring wear. Ideal for seasonal servicing of Stihl handheld equipment in landscaping, grounds care, agriculture, and construction support tasks, helping keep brushcutters, blowers, hedge trimmers, pole pruners, and multi‐tool powerheads running efficiently.
Also known as:
Engine ring, compression ring, cylinder ring, piston sealing ring, top ring, piston compression ring. These terms refer to the same component that seals the combustion chamber around the piston to maintain pressure and reduce blow‐by.
Fits Models:
BG45, BG46, BG55, BG65, BG75, BG85, BR45C, BT 45, BT45, FC 55 DZ, FC55DZ, FC 73, FC73, FC 75, FC75, FC 85, FC85, FH75, FR85, FR85T, FS38, FS45, FS46, FS55, FS55C, FS55R, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL45, HL75, HL75K, HS45, HS75, HS80, HS81, HS81R, HS81RC, HS81T, HS81TC, HS85, HS86, HS86R, HS86T, HT70, HT70K, HT75, KA85R, KA85R Attachment, KM55, KM55C, KM55R, KM55RC, KM85, KM85R, KR85, KR85 Attachment, KR85Attachment, KW 85, KW85, MM 55, MM55, MM 55 C MultiSystem, MM55CMultiSystem, MM 55-Z MultiSystem, MM55-ZMultiSystem, SH55, SH85, SP81
Alternate Part Numbers:
4137-034-3000, 41370343000
Product Specifications
| L&S Part No. | 4137 034 3000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41370343000 |
| Unit of Sale | 1 |
| Applications | BG45, BG46, BG55, BG65, BG75, BG85, BR45C, BT 45, BT45, FC 55 DZ, FC 73, FC 75, FC 85, FC55DZ, FC73, FC75, FC85, FH75, FR85, FR85T, FS38, FS45, FS46, FS55, FS55C, FS55R, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL45, HL75, HL75K, HS45, HS75, HS80, HS81, HS81R, HS81RC, HS81T, HS81TC, HS85, HS86, HS86R, HS86T, HT70, HT70K, HT75, KA85R, KA85R Attachment, KM55, KM55C, KM55R, KM55RC, KM85, KM85R, KR85, KR85 Attachment, KR85Attachment, KW 85, KW85, MM 55, MM 55 C MultiSystem, MM 55-Z MultiSystem, MM55, MM55-ZMultiSystem, MM55CMultiSystem, SH55, SH85, SP81 |
| Machine Type | Backpack Blowers, Blower/Shredders, Brushcutters, Chainsaws, Hedge Trimmers, Multi Tools |
| Fits Brands | Stihl |
| Fits Models | FS38, FS45, FS46 | FS55, FS55C, FS55R | FS75, FS80, FS85 | HS45 | HS75 | HS81, HS86 | BG75 | BR45C | SH55, SH85 | FR85T, FR85 | HT70, HT70K, HT75 | KM55, KM55C, KM55R, KM55RC | KM85, KM85R | KA85R Attachment | KR85 Attachment | MM 55, MM 55 C MultiSystem | MM 55-Z MultiSystem | KW 85 | FC 55 DZ | FC 73 | FC 75 | FC 85 | BT 45 | HL45 | HL75, HL75K | BG55 | BG85 | HS80 | HS85 | FH75 | SP 85 |
