Medium
1-2 hours
It is an authentic replacement o-ring that is supplied by original equipment manufacturer for use with Honda engines. This is the item that creates a seal between the camshaft pulley and the shaft, for correct application please make sure to check appropriate diagrams of your model. Over time the material may deteriorate and crack allowing for leaks, if this happens the o-ring will need to be replaced. Please note this durable rubber item is sold individually.
O-ring - 6.8x1.9 - Arai 91301-ZM0-V31
OEM part for: Honda, Toro, Lawn Boy
Part Number: 91301-ZM0-V31
$4.99
In Stock
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Compatibility
This O-ring - 6.8x1.9 - Arai will fit the following 646 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Honda
Toro
Lawn Boy
Show More Compatible ModelsThis item works with the following types of products:
- Engine Parts
- Lawn Mower Parts
- Lawn Tractor Parts
- Snowblower Parts
- Generator Parts
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O RING
PARTS FIT PERFECT NO MORE OIL LEAK
Guest -
May 23, 2022
Verified Purchase
received on time and worked great, thanks.
As i said it was good buy.
Guest -
September 26, 2019
Verified Purchase
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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.
Leaky cam shaft seal on Honda GCV-190 running a pressure washer
Michael - June 9, 2018
👍 2 of 3 people found this instruction helpful
Tool Type
Engine
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Chisel to dislodge valve cover
Parts Used
1) Removed plastic covers and pull starter
2) Removed valve cover bolts
3) Pried valve cover off, which was stuck on with sealant from the factory.
3a) Spent the most time cleaning off the old sealant, which was stuck to cylinder head and cover surfaces.
4) Removed old o-ring
5) Slipped new o-ring into place
6) Re-attached valve cover, following Permatex directions to seal valve cover
7) Re-attach plastic and pull starter
8) Start engine. No leaks
2) Removed valve cover bolts
3) Pried valve cover off, which was stuck on with sealant from the factory.
3a) Spent the most time cleaning off the old sealant, which was stuck to cylinder head and cover surfaces.
4) Removed old o-ring
5) Slipped new o-ring into place
6) Re-attached valve cover, following Permatex directions to seal valve cover
7) Re-attach plastic and pull starter
8) Start engine. No leaks
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leaked oil
Michael - January 3, 2022
Tool Type
Engine
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, gasket scraper
Parts Used
removed cam cover, scraped off silicone, installed O ring , reassembled
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Bent crankshaft due to hitting very hard object
Angel - October 23, 2020
Tool Type
Lawn Mower
Difficulty
Hard
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, 2 and 3 jaw pullers, low and high range torque wrenches
Parts Used
- Valve Rocker Arm - 14431-Z0J-000
- Valve Rocker Arm - 14441-Z0J-000
- O-ring - 6.8x1.9 - Arai - 91301-ZM0-V31
- Seal- Valve Stem - 12209-ZM0-003
- Spring- Valve - 14751-ZL8-000
- Valve, In. - 14711-ZL8-000
- Pulley, Camshaft - 14320-Z8D-000
- Belt, Timing (84hu6 G-200) - 14400-Z8B-003
- Valve, Ex. (c8e) - 14721-ZL8-000
- Cover, Head - 12311-Z8B-000
1. Took off broken blades, blade holder and drive belt pulley. This required a two jaw puller due to bend in shaft.
2. Open up crankcase. Many steps involved. Followed youtube videos. Detailed videos exist.
3. Take out piston. Found lots of black soot on piston, crankcase and valve seats. Apparently due to mistiming from running engine with bent crankshaft since this is a pretty new engine always running smooth before accident.
4. Use carburetor cleaner and lots of work to clean piston and case. Put in new valves and use grinding compound to clean valve seats and "break in" valves.
5. Install new crankshaft (also from ereplacement) and all new parts related to timing. The old ones looked fine but did not want to have to open up again in case there was some damage not visible.
6. Assemble everything. Again lots of steps. Take pictures when disassembling, label parts and use youtube videos. A mechanic friend lent me a puller and a torque wrench.
7. New blade holder and blades.
8. Pull starter cord. Starts right off. Runs very smooth. Cuts very well. Success but it is a major project for amateurs. I am retired thus have the time and love this Honda lawnmower. Kind of expensive because of all the new parts but still cheaper than a new Honda and I have only had it a couple of years. Now it's practically new.
2. Open up crankcase. Many steps involved. Followed youtube videos. Detailed videos exist.
3. Take out piston. Found lots of black soot on piston, crankcase and valve seats. Apparently due to mistiming from running engine with bent crankshaft since this is a pretty new engine always running smooth before accident.
4. Use carburetor cleaner and lots of work to clean piston and case. Put in new valves and use grinding compound to clean valve seats and "break in" valves.
5. Install new crankshaft (also from ereplacement) and all new parts related to timing. The old ones looked fine but did not want to have to open up again in case there was some damage not visible.
6. Assemble everything. Again lots of steps. Take pictures when disassembling, label parts and use youtube videos. A mechanic friend lent me a puller and a torque wrench.
7. New blade holder and blades.
8. Pull starter cord. Starts right off. Runs very smooth. Cuts very well. Success but it is a major project for amateurs. I am retired thus have the time and love this Honda lawnmower. Kind of expensive because of all the new parts but still cheaper than a new Honda and I have only had it a couple of years. Now it's practically new.
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Thanks for voting and helping fellow customers!
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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