Products Description
Brush Cutter Oil Seal – Replacement Crankshaft Seal
Essential Engine Component for Shindaiwa, Husqvarna & Echo Brushcutters
An oil seal is a vital engine component that fits around the crankshaft where it exits the crankcase. Its primary function is to maintain an air-tight seal that prevents oil from leaking out of the crankcase while allowing the shaft to rotate freely. Over time, these seals can wear out, become damaged, or harden, leading to oil leaks, air leaks, and poor engine performance. This guide covers oil seal options for brushcutters from major brands including Shindaiwa, Husqvarna, and Echo.
Technical Profiles & Materials
Prevents Oil Leakage – The oil seal creates a seal between the crankshaft and the crankcase cover, preventing lubricant from escaping and keeping the engine clean. If you notice any leakage from the crankcase past the seals, the oil seals should be replaced.
Maintains Crankcase Integrity – A proper seal is essential for maintaining correct crankcase pressure. Damaged or worn seals can allow air to enter the crankcase, disrupting the fuel-air mixture and leading to hard starting, erratic idling, and potential engine damage.
Durable Material Construction – Manufactured from high-quality materials, typically rubber or metal. These seals are designed to withstand the heat, vibration, and rotational friction of brushcutter operation.
OEM Replacement Fitment – Available as genuine OEM parts from leading manufacturers. OEM parts guarantee correct fitment and are sourced from the original equipment manufacturer.
Specialised Crankshaft Seal – This component provides an air-tight seal for the crankcase and is critical for correct engine operation. The seal is located where the driveshaft exits the crankcase, allowing rotation while preventing oil leaks.
Technical Specifications
| # | Component | Part Number | Specification / Application |
|---|---|---|---|
| 1 | Shindaiwa Oil Seal | V505000140 | Fits Shindaiwa 22C Brush Cutter; seals crankcase opening where drive shaft exits |
| 2 | Shindaiwa Oil Seal | V508000050 | Fits Shindaiwa B45 Brush Cutter; also fits B452R and other models |
| 3 | Shindaiwa Oil Seal | V505000080 | Fits Shindaiwa 22C, C250, C270, C242, and various brushcutters/trimmers |
| 4 | Husqvarna Sealing Ring | 503260202 | Fits Husqvarna 122R, 122RJ, 135R, 333R, 335R, 335FR, 336FR brushcutters; also fits 122C trimmer |
| 5 | Echo/Shindaiwa Oil Seal | 10021242031 | OEM part used in trimmers, blowers, and brushcutters; part of small block assembly |
| 6 | Echo/Shindaiwa Oil Seal | 10021300310 | Fits Echo 400AE trimmer, Shindaiwa B430F/B430R brush cutters, and various sprayers |
| 7 | Echo/Shindaiwa Seal-oil | 61041307130 | Fits Shindaiwa B430F, B430R, C254, C344 brushcutters; made of plastic |
| 8 | Husqvarna Oil Seal | 502462401 | 15mm ID × 28mm OD × 5mm height; fits Husqvarna 340, 345, 350, 445, 450, 455, 460 saws and K-series cut-off saws |
Products Application
Shindaiwa B45 & B45LA Brushcutter Maintenance
The V508000050 oil seal is a critical component for the B45 and B452R brushcutters. The V505000080 seal is compatible with a wide range of Shindaiwa brushcutters, including 22C, C250, C270, C242, and many C-series models. Both seals are available as genuine OEM Shindaiwa parts.
Husqvarna Brushcutter & Chainsaw Servicing
The 503260202 sealing ring is confirmed for use with brushcutters including 122R, 122RJ, 135R, 333R, 333RX, 335R, 335FR, 335RX, 336FR, 336FRD, 336RK, and 535FBX models. The 502462401 seal is widely used on 340, 345, 350, 445, 450, 455, and 460 chainsaws, as well as K-series cut-off saws and various trimmers/blowers.
Echo & Shindaiwa Multi-Equipment Sealing
The 10021242031 oil seal is an OEM part used in trimmers, blowers, and edgers from Shindaiwa and Echo. The 10021300310 seal fits Shindaiwa B430F and B430R brush cutters, as well as Echo 400AE trimmers. The 61041307130 seal is designed for B430F, B430R, C254, and C344 brushcutters. These seals should be replaced if leakage from the crankcase past the seals is noticed.
Quality and Craftsmanship Details
Products Package
About Us
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FAQ
Q: How do I confirm which oil seal fits my brushcutter?
A:Check your equipment model number on the identification plate. For Shindaiwa B45 and B452R, use V508000050. For Shindaiwa 22C and C-series brushcutters, use V505000140 or V505000080. For Husqvarna 122R/122RJ/135R/333R/335R/335FR/336FR brushcutters, use 503260202. For Echo/Shindaiwa B430F/B430R, use 10021300310 or 61041307130.
Q: What are the symptoms that indicate the oil seal needs replacing?
A: Common symptoms include visible oil leakage from the crankcase area, hard starting, erratic idling, and loss of engine performance. If you notice any leakage from the crankcase past the seals or along the crankshaft, the oil seals are likely to blame. The seals should also be replaced any time they are removed from the crankshaft during related maintenance.
Q: Are these seals available as OEM parts?
A: Yes. All listed oil seals are available as genuine OEM parts manufactured by the original equipment manufacturer for their respective brands. Genuine OEM parts guarantee correct fitment, superior quality, and durability.
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