Honda Timing Chain Guide Pivot Bolt 90003-PNA-000

Honda K Series Timing Chain Guide Pivot Bolt - 90003-PNA-000

Doing a timing chain replacement on your K series and you need the timing chain guide pivot bolt? This is the specialty bolt that mounts the front timing chain guide at the top and lets it pivot when your tensioner moves. Part number 90003-PNA-000. It's got a long shoulder and short threaded section that you won't find at any hardware store. When you're pulling your timing chain cover off to replace your chain, tensioner, or guides, you're supposed to replace this bolt. Old bolts get stretched from constant vibration and they lose clamping force. Fresh bolt keeps your timing chain guide mounted properly so your chain stays aligned and your valves don't kiss your pistons.

Here's What This Bolt Does

Your front timing chain guide's spring-loaded on the tensioner. The tensioner pushes on the guide to keep tension on your timing chain as the chain stretches over time. The guide needs to pivot at the top to move with the tensioner. This bolt's the pivot point. It's got a long smooth shoulder that acts as a pin for the guide to rotate on, and a short threaded section that bolts into your cylinder head. The guide pivots on the shoulder while the bolt holds it in place. If you use a regular bolt without the shoulder, the guide can't pivot right and your chain tension gets screwed up. Wrong bolt means timing chain noise, excessive wear, or chain skip. That's bent valves.

Specialty Hardware You Can't Find at the Store

This isn't a bolt you can substitute from Ace Hardware. The long shoulder and short thread are specific to this application. Hardware store bolts are all thread with no shoulder. You need the shoulder for the guide to pivot on. Trying to use a regular bolt means the guide's binding on the threads instead of pivoting smoothly. Your timing chain tensioner can't do its job and you're going to have problems. Just order the OEM bolt and do it right.

Replace It During Timing Chain Service

When you're in your timing chain doing a chain replacement, replace this bolt. It's cheap and it's critical for proper timing chain operation. The bolt gets stressed every time your engine runs from the spring pressure on the timing chain guide. After 100k+ miles or if you've had timing chain noise from a stretched chain slapping around, the bolt's fatigued. Don't reuse it and find out it's worn when your timing jumps and you bend valves. Replace the bolt, the chain, the tensioner, and the guides all at once. It's not worth saving $5 on a bolt when you're already $500 deep in a timing chain job.

What You Get

• Honda OEM timing chain guide pivot bolt (part number 90003-PNA-000)
• Long shoulder design for guide pivot function
• Short threaded section for cylinder head mounting
• Specialty bolt (not available at hardware stores)
• Allows front timing chain guide to pivot with tensioner movement
• Same bolt your engine came with from the factory

Fits Your Car

• 2013-2022 Acura ILX
• 2023-2026 Acura Integra Base/ASpec/Type S
• 2017-2021 Acura NSX
• 2007-2025 Acura RDX
• 2002-2006 Acura RSX
• 2004-2014 Acura TSX
• 2015-2025 Acura TLX
• 2003-2025 Honda Accord
• 2002-2015 Honda Civic Si
• 2006-2015 Honda Civic DX/EX/LX
• 2016-2021 Honda Civic EX/LX/Sport
• 2017-2020 Honda Civic Si
• 2017-2021 Honda Civic Type R
• 2022-2026 Honda Civic Sport/Si
• 2023-2026 Honda Civic Type R
• 2002-2026 Honda CR-V
• 2011-2016 Honda CR-Z
• 2018-2021 Honda Clarity
• 2012-2015 Honda Crosstour
• 2003-2011 Honda Element
• 2007-2020 Honda Fit
• 2016-2026 Honda HR-V
• 2010-2022 Honda Insight
• 2026 Honda Prelude

Compatible Engines

• K20A2, K20A3
• K20Z1, K20Z3, K20Z5
• K23A
• K24A1, K24A2, K24A4, K24A8
• K24W1, K24W7
• K20C1, K20C2, K20C4, 
• L15A, LEA1, L15B
• L15B7, L15CA
• R18A