DNJ
DNJ Intake Valve For 2019-2021 Mazda DOHC
DNJ Intake Valve For 2019-2021 Mazda DOHC
Part number: IV4388A
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- Free fitment check before you order
Listed for: 2019–2021 Mazda DOHCFitment notes & questions
Intake Valve from DNJ, listed for the 2019–2021 Mazda DOHC. Intake valves let the air and fuel mixture into the cylinder; exhaust valves let the burned gases out. Part number: IV4388A.
Specifications
- Brand: DNJ
- Part type: Valve
- Part number: IV4388A
Fitment for the 2019–2021 Mazda DOHC
- Years: 2019–2021
- Vehicles: Mazda DOHC
Check your year, model, engine and trim against this list before you order.
What it does
Valves are usually replaced during a cylinder head rebuild, along with guides, seals and a valve job. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Have the valve seats cut or lapped so the new valves seal fully.
- Valve stem seals: Always new with new valves.
- Head gasket: The head comes off for this job.
- Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
What is the part number of this intake valve?
IV4388A (DNJ). Compare it with the number on your old part or in your parts catalog.
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Confirm your year, make, model and trim match the fitment listed above (2019–2021 Mazda DOHC).
- Compare part number IV4388A with your original part.
Good to know
- Warranty: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.
About this valve for the Mazda DOHC
Valves are usually replaced during a cylinder head rebuild, along with guides, seals and a valve job.
Fitment notes
- Listed for: 2019–2021 Mazda DOHC.
- Model years: 2019–2021. Check your car's year falls inside this range.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentParts that usually go with it
- Valve stem seals. Always new with new valves.
- Head gasket. The head comes off for this job.
More for your car: Mazda Intake Valves · Mazda Parts · All Intake Valves · Engine
Questions about Mazda DOHC engine valves
Will this fit my Mazda DOHC?
How do I know a valve is bad?
Where do specs and warranty details come from?
Questions & answers
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