Part Location Diagram of 503436501 Husqvarna Lock Spring
See part F-9 in the diagram
( Grid squares measure 1x1 inch )

Lock Spring 503436501

Manufactured by:
Husqvarna
ERP Number:
ERP8990103
Part Number:
503436501
Original Equipment Manufacturer ?
  Works with your model  2145!
$6.58
In Stock
Delivers in 3-5 Business Days!

Easy 

Less than 15 mins 

(1 rated repair) ?
  Works with your model   2145!

Product Description

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This is a genuine manufacturer-sourced replacement part which is specially designed for Husqvarna, Poulan and Jonsered chainsaws. The purpose of this spring is to apply tension on the catch which is sold separately. If the hardware is worn or damaged, this will provide an identical replacement for the original component that was installed on a new unit. Refer to the appropriate diagrams for your model to ensure the exact location and the correct repair procedure. Note, this high-quality lock spring is made of durable metal and is sold individually.

Troubleshooting

This part works with the following brands:
  • Husqvarna
  • Jonsered
  • RedMax
  • Poulan
  • Craftsman
This part works with the following products:
  • Chainsaw
Part# 503436501 replaces these:
503436501,

Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

Less than 15 mins 

(1 rated repair) ?
  • 1
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Sorry, we couldn't find any existing installation instruction that matched.

Chain brake handle wore out and the catch disintegrated and lock spring disappeared.

Clayton from DANVILLE, Vermont

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
503892401, 503436501
I had to order 2 parts from here and one part (the actual chain brake handle) from another outfit to get them all within a week. My local place had none of them. All arrived promptly
Removed the cover, the bar and the chain, unscrewed the broken plastic brake handle. Screws were fine (which is good, they cost 4 dollars each). In the small gap, installed the catch and spring, but couldn\'t immediately tell which direction for them to sit.
Screwed in the plastic brake handle and checked if it would click and it did not. Unscrewed it and turned the catch one turn (it\'s a tiny rectangle). Then screwed on again and it caught and was thusly installed correctly. Clicked it back and forth a bit, installed the brake cover and screws to make sure the brake locked and unlocked and then put the saw back together.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP8990103
Manufacturer Part Number: 503436501
Brand Model Number Description
Husqvarna 130LB Spreader - Spreaders - 130 Lb Tow Spreader (2012-03)
Husqvarna 132R Brush Cutter - 132 R (19904400001-19920100000)
Husqvarna 135 Chainsaw - From Chain Saw
Husqvarna 135E Chainsaw - From Chain Saw
Husqvarna 140 Chainsaw - From Chain Saw
Husqvarna 140E Chainsaw - From Chain Saw
Husqvarna 180BF Leaf Blower / Vacuum - 180 Bf (20080500001-20084000000)
Jonsered 2063 Chainsaw - Chain Saw
Jonsered 2063EPA Chainsaw - Chain Saw
Jonsered 2065 Chainsaw - Chain Saw
Jonsered 2065EPA Chainsaw - Chain Saw
Jonsered 2071 Chainsaw - Chain Saw
Jonsered 2071EPA Chainsaw - Chain Saw
Jonsered 2071W Chainsaw - Chain Saw
Jonsered 2077 Chainsaw - Chain Saw
Jonsered 2083 Chainsaw - Chain Saw
Jonsered 2083IIEPA Chainsaw - Chain Saw
Jonsered 2141 Chainsaw - Chain Saw
Jonsered 2145 Chainsaw - Chain Saw
Jonsered 2149 Chainsaw - Chain Saw
Jonsered 2150 Chainsaw - Chain Saw
Jonsered 2159 Chainsaw - Chain Saw
Jonsered 2159EPA Chainsaw - Chain Saw
Jonsered 2163 Chainsaw - Chain Saw
Jonsered 2163EPA Chainsaw - Chain Saw
Jonsered 2165 Chainsaw - Chain Saw
Jonsered 2165EPA Chainsaw - Chain Saw
Jonsered 2171 Chainsaw - Chain Saw
Jonsered 2171EPA Chainsaw - Chain Saw
Husqvarna 340 Chainsaw - Chainsaw