Products Description
Husqvarna 281 / 288 Chainsaw Oil Pump – High-Output Lubrication System
OEM-Spec Oil Pump Assembly for Husqvarna 281 & 288 Professional Saws
This oil pump assembly is a direct replacement for the bar and chain lubrication system on Husqvarna 281, 281XP, 288, and 288XP professional chainsaws. Designed to deliver consistent oil flow to the guide bar and chain, this pump is essential for maintaining cutting performance and preventing premature wear in large-displacement saws. The pump is driven by the engine via a worm gear, ensuring oil output increases proportionally with engine speed – delivering more lubrication during demanding cuts when it's needed most . Available as a genuine OEM assembly (503698101) or as part of comprehensive kits including the worm gear, oil hose, and filter .
Technical Profiles & Materials
High-Output Lubrication – Precision-machined gears designed to maintain oil flow under high heat, preventing premature bar rail wear and chain stretching. Essential for saws equipped with 24-inch or longer guide bars .
OEM-Spec Replacement Fitment – Replaces Husqvarna OEM part numbers 503 69 81-01, 501 80 25-01, and 503698101. Fits Husqvarna 281, 281XP, 288, and 288XP models . Also compatible with Jonsered 2094, 2095, CS2186, and CS2188.
Comprehensive Kit Options – Complete kits available include oil pump assembly, oil filter, oil hose, and worm gear – all components needed for a full lubrication system overhaul . The worm gear (OEM 503557501) is available separately for targeted repairs .
Durable Construction – Genuine Husqvarna OEM pumps feature precision-machined components designed to withstand the high-temperature, high-vibration environment of professional forestry work. Use of high-quality bar oil is essential to prevent the internal pump piston from sticking .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. | 503 69 81-01 / 503698101 / 501 80 25-01 |
| 2 | Compatible Models | HUS281, HUS281XP, HUS288, HUS288XP |
| 3 | Also Compatible | Jonsered 2094, 2095, CS2186, CS2188 |
| 4 | Worm Gear OEM | 503557501 |
| 5 | Oil Hose OEM | 503426701 |
| 6 | Material | Precision-machined components |
| 7 | Kit Contents (Typical) | Oil pump assembly, oil filter, oil hose, worm gear |
| 8 | Function | Bar and chain lubrication system |
Products Application
Full Lubrication System Overhaul
The complete oil pump kit provides all components needed for a comprehensive oil system service. When replacing the oil pump on the 288XP, always inspect the drive worm gear – if the plastic threads are worn, the new pump won't turn . The comprehensive kit ensures all components are renewed simultaneously .
Oiling Failure Diagnosis & Repair
If the chain runs dry or oil output is insufficient, the oil pump or worm gear may be worn. Symptoms include overheating chain, excessive bar wear, and reduced cutting performance. Replacing the pump restores proper lubrication flow and protects the guide bar and chain from damage .
Professional Chainsaw Restoration
For collectors and professionals maintaining classic Husqvarna 281 and 288 series saws, both genuine OEM and quality aftermarket oil pump assemblies are available. The high-output pump is built specifically for large-displacement saws required for big timber felling .
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: How do I confirm this oil pump fits my Husqvarna chainsaw?
A:Check your chainsaw model number on the housing. This oil pump fits Husqvarna 281, 281XP, 288, and 288XP models. It replaces OEM part numbers 503 69 81-01, 503698101, and 501 80 25-01 .
Q: What are the symptoms of a failing oil pump?
A: Common symptoms include insufficient oil delivery to the bar and chain, chain overheating, excessive bar wear, and the saw running dry during cutting. The simplest way to test oil flow is to run the saw at full throttle and check for oil spray pattern on a light-coloured surface .
Q: What is included in a complete oil pump kit?
A: A comprehensive kit typically includes the oil pump assembly, oil filter, oil hose, and worm gear – all components needed for a full lubrication system overhaul . The worm gear (OEM 503557501) is essential for driving the pump from the engine .
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