Engine valves are critical components for your vehicle's combustion process. Ensuring you select high-quality replacement valves and parts is essential for maintaining optimal engine performance, fuel efficiency, and longevity. Investing in the right components can prevent costly repairs and keep your car running smoothly for years to come.
- Fitment: for BUICK LACROSSE 2.4L 2384CC 145CID L4 DOHC, (16 VALVE) 2010-2011; 2012-2016 for BUICK LACROSSE 2.4L 2384CC 145CID L4 ELECTRIC/GAS DOHC, (16 VALVE); 2012-2015 for CHEVY CAPTIVA SPORT 2.4L 2384CC 145CID L4 FLEX DOHC, (16 VALVE); 2010-2017 for...
- OEM Part Number: For 12596034, 12615936, 24434464, 24454518, 90537239, 55192156, 55563529
- Function: Intake and exhaust valves help improve the efficiency of the engine's intake and exhaust. Smoother air intake enables the engine to draw in more air, which improves combustion efficiency and increases the engine output and torque
- Quality Material: Intake valve kits adopts high-strength alloy steel. It can withstand the high temperature and high pressure environment inside the engine as well as frequent mechanical impacts, and has good abrasion resistance and fatigue resistance to...
- Package Included: 8pcs x Intake Valves (1 Groove; Head 35.10mm x Stem 5.96mm x Length 102.20mm); 8pcs x Exhaust Valves (1 Groove; Head 30.15mm x Stem 5.96mm x Length 101.05mm) to ensure smooth and reliable operation
- Intake Valves Replacement Part Number: 12622329
- Air-out Valves Replacement Part Number: 12615936
- Intake Valves: Head 35.1mm x Stem 6mm x Length 102.2mm
- Air-out Valves: Head 30.1mm x Stem 6mm x Length 100.9mm
- Note: Please confirm the part number, compatibility and compare old parts before purchase
- genuine oem factory part
- exact fit
- durable
- best in quality
- this is not an aftermarket part
- OEM
- Ideal replacement - this VVT solenoid is professionally engineered to match the function and performance of the stock part on specific vehicle applications
- Durable construction - this part is made from quality materials to ensure a long service life
- Century of experience - for over 100 years, Dorman Products has provided quality automotive replacement parts to its customers
- Vehicle tested - has undergone on-vehicle testing to ensure proper fit and performance
- Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle.
- Valuable Choice: Complete Valve Cover kit (with Oil Filler Cap & Gasket, Spark Plug Seals, Bolts) Pre-Installed valve cover comes with BOLTS, Oil Cap, GASKETS, SPARK PLUG TUBE SEALS to make your install easier. Highly durable material. High sealing...
- PACKAGE: Valve Cover Kit includes: NEW Engine Valve Cover, New Oil Cap, NEW Engine Valve Cover Gasket, NEW Bolts, New Tube, New P CV Cover. NOTE:Please reference to the first picture as shown
- EXCAT MATCH: Compatible with 2007-2013 NISSAN ALTIMA 2.5L L4, 2007-2011 NISSAN ALTIMA Hybrid 2.5L. 2007-2012 NISSAN SENTRA SE-R 2.5L
- OE PART NUMBER: 13264-JA00A, 13270-JA00A
- PURCHASE WITH CONFIDENCE: If you are not sure about the vehicle fitment or any questions or concerns, please message us via amazon. We will resolve the issue to meet your satisfaction
- EXCAT MATCH: Compatible with 2008-2013 Rogue (L4 2.5L Gas), 2014-2015 Rogue Select (L4 2.5L Gas) --- For Nissan QR25DE Engine
- Professional, premium aftermarket replacement
- Provides the performance and dependability you expect from ACDelco
- Manufactured to meet expectations for fit, form, and function
- Professional, premium aftermarket replacement
- Provides the performance and dependability you expect from ACDelco
- Manufactured to meet expectations for fit, form, and function
- Pcv Valve
- Highly durable
- Designed to meet original part specifications
- Exact fitment and original replacement
- genuine oem factory part
- exact fit
- durable
- best in quality
- this is not an aftermarket part
- OEM
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Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Engine Valves & Parts
Understanding Valve Types
Engine valves control the flow of air-fuel mixture into the combustion chamber and exhaust gases out. The two primary types are intake valves, which allow the air-fuel mixture in, and exhaust valves, which let burnt gases escape. Intake valves are typically larger and cooler than exhaust valves. Some high-performance applications may utilize sodium-filled exhaust valves for improved heat dissipation.
Material Matters for Durability
The materials used in valve construction significantly impact their durability and performance. Common materials include forged steel alloys like Silchrome 1 or 21-4-N stainless steel for exhaust valves, offering excellent heat and corrosion resistance. Intake valves might be made from chrome-silicon steel or other high-strength alloys. Consider the operating conditions of your engine; performance or heavy-duty use may warrant more robust materials.
Key Component Considerations
Beyond the valve itself, several other parts are crucial for proper function. Valve springs maintain tension to keep valves properly seated. Retainers hold the springs in place, while seals prevent oil from entering the combustion chamber. It's often best to replace these components as a set when performing valve work to ensure compatibility and optimal performance. Ensure you match the specifications of these parts to your engine's requirements.
Compatibility and Fitment
The most critical aspect of purchasing replacement valves and parts is ensuring they are compatible with your specific vehicle's make, model, and engine. Always consult your vehicle's service manual or use online fitment guides provided by manufacturers and retailers. Incorrectly sized or designed valves can lead to poor sealing, reduced performance, and potential engine damage. Double-checking part numbers against your vehicle's original equipment specifications is paramount.
Comparison Tips
- Brand Reputation: Research reputable manufacturers known for quality engine components.
- Material Specifications: Compare the alloys used, especially for exhaust valves handling high temperatures.
- Component Kits: Consider purchasing complete valve train kits for guaranteed compatibility and ease of installation.
- Engine Type: Ensure the parts are designed for your specific engine type (e.g., naturally aspirated, turbocharged, diesel).