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7S7144 Spring Valve for CAT 120, 120B, 120G & more
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Description for 7S7144 Engine Valve Spring
â–¶Specification for 7S7144 Engine Valve Spring
â–¶Exact Fit Guarantee for 7S7144 Engine Valve Spring
â–¶Reviews
Customer Reviews
A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.
Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.
Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.
? Jimmy Spong
Hartco Mobile Welding
P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
Great company to deal with. Answered my questions with detail and shipped me the part in good time! I will be dealing with them more in the future!
Excellent and prompt response.
Propel parts team helped me greatly regarding a special request and I always get prompt response.
They’re fantastic!
Quality Caterpillar parts
Very fast delivery and respons from Propel Parts
This is my second time that I bought something from it, first time delivery time was in one week from US to Serbia
Our CSR for Dymax Inc., Deb, has been extremely helpful and consistently provides quick, accurate information regarding parts and inventory. When we encounter difficulties finalizing transactions through the internal website, she is able to promptly generate quotes and provide an external, secure method for payment. Her responsiveness and willingness to assist play a key role in supporting our team’s success.
Have been buying parts from them for years, and they have always delivered, both with parts and customer service.
Quick Response. Very much appreciated.
Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.
Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
Original Review (Portuguese)
Muito bom atendimento
Ótima empresa
English Translation
Very good service.
Excellent company.
Product Questions
Frequently Asked Questions
What is the 7S7144 valve spring used for?
The 7S7144 valve spring is a critical component in the engine's valve train. It applies pressure to keep the intake and exhaust valves properly seated after they open during combustion. This helps maintain accurate valve timing, supports smooth engine operation, and prevents power loss caused by improper valve movement.
Which engines are compatible with the 7S7144 valve spring?
Because 7S7144 fitment varies across machine configurations, always verify the part number in your equipment manual or parts catalog before ordering. The Propel Parts team can also help confirm compatibility quickly.
What are the signs of a worn or weak valve spring?
A worn 7S7144 engine valve spring may cause noticeable engine performance issues, such as:
- Loss of engine power or reduced efficiency
- Irregular engine idle or misfires
- Unusual ticking noise from the cylinder head
- Improper valve seating or valve train wear
Inspecting and replacing worn valve springs during maintenance can help prevent further damage to the valve train.
Does the 7S7144 valve spring meet performance standards?
Definitely. The 7S7144 replacement is manufactured to meet OEM performance standards, making it a reliable choice for demanding heavy equipment applications. Contact Propel Parts if you need help confirming it\'s the right part for your setup.
How do you install the 7S7144 valve spring?
Installing a 7S7144 valve spring typically requires cylinder head access and the proper valve spring compression tools. General installation steps include:
- Remove the cylinder head cover and access the valve assembly.
- Compress the existing valve spring using a valve spring compressor
> tool.
- Remove the retainers and take out the worn spring.
- Install the new 7S7144 valve spring in the correct position.
- Reinstall the retainers and release the compressor tool carefully.
Always follow the engine service manual for accurate procedures and torque specifications.
When should the 7S7144 valve spring be replaced?
The 7S7144 valve spring is often replaced during engine overhauls, cylinder head repairs, or valve train maintenance. If the spring loses tension or fails inspection during engine servicing, replacing it helps maintain proper valve operation and engine performance.
Can I use a premium aftermarket 7S7144 valve spring replacement?
Definitely. Aftermarket 7S7144 replacements that meet OEM standards offer a dependable alternative to original parts. Selecting a quality replacement helps ensure proper fitment, system performance, and long-term durability.
Compatible Models
This 7S7144 Engine Valve Spring is compatible with the following models:
120, 120B, 120G, 12G, 12H, 12H ES, 12H NA, 130G, 140B, 140G, 140H, 140H ES, 140H NA, 143H, 14E, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 1673C, 215, 215B, 215C, 225, 235, 235B, 330, 330 L, 3304, 3306, 3406, 3406B, 3406C & more...
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Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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