7S7144 Spring Valve for CAT 120, 120B, 120G & more
- New Spring Valve Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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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–¶| 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 |
|---|---|
| Dimensions | 0.39x0.39x0.39 |
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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.
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...

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.

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.

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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