Guide Bar Nut 5/16-18 678339003
Part Number: 678339003
Order within the next 6 hours
and your part ships today!
and your part ships today!
Product Information
Description:
| This is an OEM approved replacement part designed for use with chainsaws. The primary purpose of this part is to attach the chainsaw bar to the main unit. There are two of these mounting nuts used to secure bar. It is a metal hex flange nut and it is sold individually. You will need a wrench when working with this item. |
Frequently Purchased With
Compatibility
the 66 compatible machines
This part is compatible with the following machines:
Ryobi
RY10518 18 in. 46cc Chainsaw
RY10518 18 in. 46cc Chainsaw
RY10520 20 in. 46cc Chainsaw
RY10520 20 in. 46cc Chainsaw
RY10519 Chainsaw
RY10519 Chainsaw
RY10521 Chainsaw
RY10521 Chainsaw
RY10519A 46CC Chain Saw
RY10519A 46CC Chain Saw
RY10521A 46CC Chain Saw
RY10521A 46CC Chain Saw
RY40502 Chain Saw
RY40502 Chain Saw
RY10519B RY10519B 46CC Chainsaw
RY10519B RY10519B 46CC Chainsaw
RY10521B RY10521B 46CC Chainsaw
RY10521B RY10521B 46CC Chainsaw
RY3716 (090382002) Chain Saws
RY3714 (090180501) 37cc Chain Saw
RY3818 (090382008) Chain Saw
RY10518 18 in. 46cc Chainsaw
RY10520 20 in. 46cc Chainsaw
RY10520 20 in. 46cc Chainsaw
RY10519 Chainsaw
RY10519 Chainsaw
RY10521 Chainsaw
RY10521 Chainsaw
RY10519A 46CC Chain Saw
RY10519A 46CC Chain Saw
RY10521A 46CC Chain Saw
RY10521A 46CC Chain Saw
RY40502 Chain Saw
RY40502 Chain Saw
RY10519B RY10519B 46CC Chainsaw
RY10519B RY10519B 46CC Chainsaw
RY10521B RY10521B 46CC Chainsaw
RY10521B RY10521B 46CC Chainsaw
RY3716 (090382002) Chain Saws
RY3714 (090180501) 37cc Chain Saw
RY3818 (090382008) Chain Saw
RY3714 (090382009) Chain Saws
RY3716 (090180502) 37cc Chain Saw
RY5020 (090840005) 50cc Chain Saw
RY3714 (090382003) Chain Saws
RY3714 (090180505)(090180507) Chain Saw 090180505
RY3716 (090180506)(090180508) Chain Saw 090180506
RY5020 (090840001) 50cc Chain Saw
RY3716 (090382010) Chain Saws
RY40505 (107473001) 40 Volt Chain Saw
RY40503 (107507001) 40 Volt Chain Saw
P2502 P2502 18 Volt Chain Saw Mfg. No. 107586001 7-28-21 (Rev:02)
RY3714 Ry3714 38cc Chain Saws Mfg. No. 090382013 8-3-21 (Rev:02)
RY3714VNM Ry3714vnm 38cc Chain Saws Mfg. No. 095382013 8-3-21 (Rev:02)
RY3716 Ry3716 38cc Chain Saws Mfg. No. 090382012 8-3-21 (Rev:02)
RY3716VNM Ry3716vnm 38cc Chain Saws Mfg. No. 095382012 8-3-21 (Rev:02)
RY3818 Ry3818 18 In. 38cc Chain Saw Mfg. No. 090382011 8-3-21 (Rev:02)
RY3818VNM Ry3818vnm 18 In. 38cc Chain Saw Mfg. No. 095382011 8-3-21 (Rev:02)
RY40503VNM Ry40503vnm 40 Volt Chain Saw Mfg. No. 107507101 11-10-20 (Rev:06)
RY40507 Ry40507 40 Volt 10 In. Chainsaw Mfg. No. 107587001 7-15-21 (Rev:02)
RY40508 Ry40508 40 Volt 18 In. Brushless Chain Saw Mfg. No. 107404001 10-9-20 (Rev:01)
RY5020 Ry5020 50cc Chain Saw Mfg. No. 090840007 8-4-21 (Rev:04)
RY3716 (090180502) 37cc Chain Saw
RY5020 (090840005) 50cc Chain Saw
RY3714 (090382003) Chain Saws
RY3714 (090180505)(090180507) Chain Saw 090180505
RY3716 (090180506)(090180508) Chain Saw 090180506
RY5020 (090840001) 50cc Chain Saw
RY3716 (090382010) Chain Saws
RY40505 (107473001) 40 Volt Chain Saw
RY40503 (107507001) 40 Volt Chain Saw
P2502 P2502 18 Volt Chain Saw Mfg. No. 107586001 7-28-21 (Rev:02)
RY3714 Ry3714 38cc Chain Saws Mfg. No. 090382013 8-3-21 (Rev:02)
RY3714VNM Ry3714vnm 38cc Chain Saws Mfg. No. 095382013 8-3-21 (Rev:02)
RY3716 Ry3716 38cc Chain Saws Mfg. No. 090382012 8-3-21 (Rev:02)
RY3716VNM Ry3716vnm 38cc Chain Saws Mfg. No. 095382012 8-3-21 (Rev:02)
RY3818 Ry3818 18 In. 38cc Chain Saw Mfg. No. 090382011 8-3-21 (Rev:02)
RY3818VNM Ry3818vnm 18 In. 38cc Chain Saw Mfg. No. 095382011 8-3-21 (Rev:02)
RY40503VNM Ry40503vnm 40 Volt Chain Saw Mfg. No. 107507101 11-10-20 (Rev:06)
RY40507 Ry40507 40 Volt 10 In. Chainsaw Mfg. No. 107587001 7-15-21 (Rev:02)
RY40508 Ry40508 40 Volt 18 In. Brushless Chain Saw Mfg. No. 107404001 10-9-20 (Rev:01)
RY5020 Ry5020 50cc Chain Saw Mfg. No. 090840007 8-4-21 (Rev:04)
Homelite
UT10548 14 In. 35cc Chainsaw
UT10548 14 In. 35cc Chainsaw
UT10568 16 In. 38cc Chainsaw
UT10568 16 In. 38cc Chainsaw
UT10588 18 In. 42cc Chainsaw
UT10588 18 In. 42cc Chainsaw
UT10549 14 In. 35cc Chainsaw
UT10549 14 In. 35cc Chainsaw
UT10569 16 In. 38cc Chainsaw
UT10569 16 In. 38cc Chainsaw
UT10589 18 In. 42cc Chainsaw
UT10548 14 In. 35cc Chainsaw
UT10568 16 In. 38cc Chainsaw
UT10568 16 In. 38cc Chainsaw
UT10588 18 In. 42cc Chainsaw
UT10588 18 In. 42cc Chainsaw
UT10549 14 In. 35cc Chainsaw
UT10549 14 In. 35cc Chainsaw
UT10569 16 In. 38cc Chainsaw
UT10569 16 In. 38cc Chainsaw
UT10589 18 In. 42cc Chainsaw
UT10589 18 In. 42cc Chainsaw
UT10640 14 Inch 42cc Chain Saw
UT10640 14 Inch 42cc Chain Saw
UT10660 16 Inch 42cc Chain Saw
UT10660 16 Inch 42cc Chain Saw
UT10680 18 Inch 42cc Chain Saw
UT10680 18 Inch 42cc Chain Saw
RY3714 (Rev01)(090180505)(090180507)(4-27-18) Chain Saw
RY3714 (Rev05)(090180501)(4-27-18) 37cc Chain Saw (Rev:05)
RY3716 (Rev01)(090180506)(090180508)(4-27-18) Chain Saw
RY3716 (Rev05)(090180502)(4-27-18) 37cc Chain Saw (Rev:05)
UT10640 14 Inch 42cc Chain Saw
UT10640 14 Inch 42cc Chain Saw
UT10660 16 Inch 42cc Chain Saw
UT10660 16 Inch 42cc Chain Saw
UT10680 18 Inch 42cc Chain Saw
UT10680 18 Inch 42cc Chain Saw
RY3714 (Rev01)(090180505)(090180507)(4-27-18) Chain Saw
RY3714 (Rev05)(090180501)(4-27-18) 37cc Chain Saw (Rev:05)
RY3716 (Rev01)(090180506)(090180508)(4-27-18) Chain Saw
RY3716 (Rev05)(090180502)(4-27-18) 37cc Chain Saw (Rev:05)
Ridgid
Products Compatibility
This item works with the following types of products:
- • Chain Saw
- • Generator
- • Saw
Questions & Answers for Guide Bar Nut 5/16-18
No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
1 of 1 people found this instruction helpful
Tool Type:
Chain Saw
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, Combination Wrench
Bar was bent
Removed the chain cover assembly
Reduced the tension on the blade and removed it and the bar
Replace the bar with the new one, installed the chain
Adjusted the chain tension
Attach the chain cover with the new nut
Reduced the tension on the blade and removed it and the bar
Replace the bar with the new one, installed the chain
Adjusted the chain tension
Attach the chain cover with the new nut
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Chain Saw
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, The wrench included with the chain saw.
Lost chain bar nuts.
Put nuts on.
Tightened nuts.
Started saw.
Saw worked.
Tightened nuts.
Started saw.
Saw worked.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Chain Saw
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Socket set
Needed new guide bar nut
Simply installed it
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Chain Saw
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Sprocket drum gear worn. Muffler gasket burnt.
1. Removed the chain cover.
2. Removed the chain and the bar.
3. Removed the e-clip from the sprocket.
4. Removed the sprocket drum.
5. Installed the new sprocket drum.
2. Removed the chain and the bar.
3. Removed the e-clip from the sprocket.
4. Removed the sprocket drum.
5. Installed the new sprocket drum.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Chain Saw
Parts Used:
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, Combination wrench for chainsaw
Damaged guide bar plate, missing guide bar nut
1. Removed existing guide bar nut 5/16-18
2. Removed guide bar cover
3. Installed guide bar plate
4. Installed guide bar cover
5. Fastened guide bar cover with guide bar nuts (2)
6. Adjusted guide bar tension with combination wrench
7. Tightened guide bar nuts with combination wrench
8. Started chainsaw
2. Removed guide bar cover
3. Installed guide bar plate
4. Installed guide bar cover
5. Fastened guide bar cover with guide bar nuts (2)
6. Adjusted guide bar tension with combination wrench
7. Tightened guide bar nuts with combination wrench
8. Started chainsaw
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Reviews
2 Reviews
Average Rating (out of 5):
Click to filter by ratings:
5 stars
2
4 stars
0
3 stars
0
2 stars
0
1 stars
0
< PREV
- 1
Several parts ordered
Not the first time I ordered replacement parts from this company. As usual the parts arrived in time and the quality was great. They keep my old tools running.
Frank -
December 7, 2021
Verified Purchase
Worked as advertised
Happy with the fitment, works as advertised. I would buy here again.
Guest -
October 29, 2019
Verified Purchase
Verified Purchase
eReplacementParts Team
< PREV
- 1
Product Information
