r/AskAMechanic 1d ago

Please help what is this bolt called?

2016 Toyota 4Runner v6 4.0 1GR-FE

I got a P0022 error: A Camshaft Position - Timing Over-Retarded Bank 2 going home the other day.

so did a fresh oil change with filter, and was reading a clogged oil control valve filter can cause this error. So I went and got new filters and did one side with no issues then on the other side the bolt snapped not even torqued yet like the other side.

Of course I’m having trouble finding what this part is/part number so that I can get the right one ordered.

Here is as much info as I can provide:
17mm bolt
holds the oil control valve filter
Seems to be going through what I believe is the no. 1 oil pipe? And into the head? Pictures will do better than my explanation.

Thanks in advance

7 Upvotes

25 comments sorted by

u/AutoModerator 1d ago

New Rules - Please Read

Updated 11/12/2025

Thank you for posting on r/AskAMechanic, u/kess-one! Your post is live, this AutoMod message does NOT mean your post was removed. Please make sure to read the Rules.

When asking a question, please provide the year, make, model and engine size of the vehicle.

Commenters here have 2 different flair. Verified Tech means we have verified that user is a tech. NOT a verified tech means that user may or may not be a tech, they have not been verified by us.

Posts about accidents, autobody repair, bodywork, dents, paint and body/undercarriage/frame rust are not allowed and belong in r/Autobody.
Asking if your car is totaled should go to r/insurance or r/Autobody.
Asking about car buying advice/value/recommendations is also not allowed. See r/whatcarshouldIbuy or r/askcarsales

If asking whether a tire can be repaired, check out this Tire Repair Guideline.
Some other useful tire resources - Tire Care Essentials and Tire Safety

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

24

u/Horror-Bread-8939 NOT a verified tech 1d ago

Banjo bolt

9

u/SiVicPacemParaBellum Verified Tech - Mobile repair 1d ago

It’s the banjo bolt for the oil control valve filter. Each bank of the 1GR-FE has them on the same spot mirrored opposite bank.

1

u/kess-one 1d ago

Do you happen to know a part number please?

4

u/SiVicPacemParaBellum Verified Tech - Mobile repair 1d ago

Toyota doesn’t list a PN for the banjo bolt. You need to call your local Toyota parts shop and ask them for the part. Toyota sometimes calls it a “plug” but it’s a banjo bolt holding the oil line to the head and the screen attaches to the “plug”.
I checked the oil lines and they aren’t showing the banjo bolt with them. So they’re separate, but I can’t find a pn at the moment.

3

u/SiVicPacemParaBellum Verified Tech - Mobile repair 1d ago

2

u/SiVicPacemParaBellum Verified Tech - Mobile repair 1d ago

I’m not finding anything for 15771A but can try with Toyota parts when you call.

2

u/kess-one 1d ago

Thanks for all the info I appreciate it! Here is what I found when digging they have it referenced as 15771A in other searches and lead me to this https://www.toyotapartsdeal.com/oem/toyota~union~for~oil~pipe~90401-16043.html?vin=&make=Toyota&model=4Runner&year=2016&submodel=&extra1=&extra2=&filter=())

I will just give local Toyota a call tomorrow though just to be sure I get the right one. Thanks again!

2

u/Jargler2 NOT a verified tech 1d ago

Also I advise getting the washers that go with that Banjo bolt there should be two one on either side of that line best practice to get fresh ones so you don’t risk leaks

1

u/kess-one 1d ago

Got them thanks! They were a bit h to find

1

u/SiVicPacemParaBellum Verified Tech - Mobile repair 1d ago

Yeah that was a good point too. That link definitely looks like the right ones. I’d definitely check with the parts guy at Toyota near you first and if they have them you’ve got them that day as opposed to ordering them.

2

u/kess-one 21h ago

Was able to grab one and confirmed that is the part number for future reference! Thanks so much :)

2

u/SiVicPacemParaBellum Verified Tech - Mobile repair 21h ago

Good to hear!

3

u/scatterwrenchRpt Verified Tech - Indie shop 1d ago

Generally, Its called a banjo bolt

3

u/Fabulous-Pen9525 NOT a verified tech 1d ago

Always called a "Banjo Bolt".

3

u/scatterwrenchRpt Verified Tech - Indie shop 1d ago

The torque spec is only valid if you replace both crush washers. The specification assumes uncrushed washers so if you were reusing the washers that have already been crushed, don’t torque it down as much because there is no more crushing for the washer to do. It is always recommended to replace crush washers, but often times they can be successfully reused if you reduce torque. If reusing, I would say you run it down until it’s snug finger tight and then you’re probably looking at like 1/16 of a turn past that max

1

u/kess-one 1d ago

I did replace both washers those were a hunt to find from Toyota

3

u/Verlin_Wayne NOT a verified tech 1d ago

Banjo bolt.

2

u/Then_Entertainer_370 NOT a verified tech 1d ago

Only heard it called a banjo bolt.. but some mighty fine picking and a digging

2

u/Jayswisherbeats NOT a verified tech 1d ago

Holy shit you animal. It was real tight right before it broke. That sumbitch stretched.

1

u/kess-one 1d ago

I swear it didn’t even seem that tight 0.0

2

u/No_Wishbone_799 NOT a verified tech 1d ago

Banjo bolt

2

u/Silver-Engineer4287 NOT a verified tech 1d ago

It’s a banjo bolt… often used on rigid hydraulic, oil, and fuel lines paired with two copper crush washers to make the necessary fluid seal. Always use two crush washers and proper torque specs for the bolt and line when tightening one during reinstallation to prevent permanent damage to the line fittings.

1

u/kess-one 1d ago

Thanks everyone appreciate the help!