Easy
1-2 hours
This is an authentic replacement part, sourced from the original manufacturer for use with gas powered trimmers. The oil is used to lubricate the crankcase. This oil bottle is 3.04 Fl. Oz. and has a weight of HD SAE 30. This oil bottle is available as an individual replacement part, please see model diagram for associative parts.
4-cycle Motor Oil 737-05815
OEM part for: Ryobi, Troy-Bilt, Yard Man, MTD
Part Number: 737-05815
$4.99
In Stock
Ships within 1 business day 
Compatibility
This part will fit the following 8 machines
Ryobi
1079r (41AD179A034) Handheld Trimmer View Diagrams & Manuals
825RA (41CD825C038) 4-Cycle Gas Trimmer View Diagrams & Manuals
Troy-Bilt
TB490BC (41ADT49C063) Gas Trimmer View Diagrams & Manuals
TB475SS (41ADT47C063) Gas Trimmer View Diagrams & Manuals
Yard Man
YM26SS (41AD26SC401) Trimmer View Diagrams & Manuals
YM26CS (41AD26CC401) Trimmer View Diagrams & Manuals
MTD
41BD26SC900 Handheld Trimmer View Diagrams & Manuals
1079R Trimmer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
This part replaces obsolete part #: 737-05691, 737-04317, 737-04133, 737-04045, 791-181786
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for 4-cycle Motor Oil
No questions have been asked yet
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.
String trimmer would not start after prolonged storage
Conrad - March 31, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Nutdriver, Razor knife, long nose pliers
Exploded drawings were on the website and extremely helpful in determining how to disassemble and what parts are available. My unit was built in 1999 so many parts were obsolete.
1. Drained old oil from crankcase (this is a 4 stroke trimmer) and replaced drain plug.
2. Removed air cleaner assembly to reveal cracked fuel lines and a deteriorated foam air filter..
3. Removed fuel tank by removing mounting screws
4. Cut old fuel lines to remove them completely, make sure you write down how they are routed
5. Replaced primer bulb by pinching the mounting tabs together - return line to tank is from the center connection
6. Replaced fuel lines - use a little engine oil on the ends to help them on the fittings. The kit provides more than enough line - so you have to trim to length. Buy both the fuel line kit and the fuel filter kit if replacing all the lines.
7. For lines that go thru the side of the fuel tank, cut fuel line on an angle to simplify insertion and coat end with a little engine oil.
8. Replace fuel filter - press on fully
9. Discovered that the crankcase breather line was also cracked. (it was under the air cleaner) Bought new hose and installed.
10. Discovered that air filter element was bad and no longer available. Bought piece of foam and cut out a new one. Coated new air filter with a little engine oil.
11. Reassembled the unit and added oil to crankcase. Started right up.
12. Discovered that the clutch was not working. Disassembled the end of the unit to reveal one broken clutch spring. Searched the web and found a replacement spring instead of having to buy an entire clutch assembly.
13. Installed spring and reassembled.
14. Started up and works like new. I hope it will last another 15 years.
1. Drained old oil from crankcase (this is a 4 stroke trimmer) and replaced drain plug.
2. Removed air cleaner assembly to reveal cracked fuel lines and a deteriorated foam air filter..
3. Removed fuel tank by removing mounting screws
4. Cut old fuel lines to remove them completely, make sure you write down how they are routed
5. Replaced primer bulb by pinching the mounting tabs together - return line to tank is from the center connection
6. Replaced fuel lines - use a little engine oil on the ends to help them on the fittings. The kit provides more than enough line - so you have to trim to length. Buy both the fuel line kit and the fuel filter kit if replacing all the lines.
7. For lines that go thru the side of the fuel tank, cut fuel line on an angle to simplify insertion and coat end with a little engine oil.
8. Replace fuel filter - press on fully
9. Discovered that the crankcase breather line was also cracked. (it was under the air cleaner) Bought new hose and installed.
10. Discovered that air filter element was bad and no longer available. Bought piece of foam and cut out a new one. Coated new air filter with a little engine oil.
11. Reassembled the unit and added oil to crankcase. Started right up.
12. Discovered that the clutch was not working. Disassembled the end of the unit to reveal one broken clutch spring. Searched the web and found a replacement spring instead of having to buy an entire clutch assembly.
13. Installed spring and reassembled.
14. Started up and works like new. I hope it will last another 15 years.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
