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New 1976999 Rotocoil A Replacement suitable for Caterpillar Equipment
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Description for 1976999 Rotocoil-engine Valve
â–¶Specification for 1976999 Rotocoil-engine Valve
â–¶Exact Fit Guarantee for 1976999 Rotocoil-engine Valve
â–¶Reviews
Customer Reviews
Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
Always helpful and great pricing
Cat blade pins.
Easy transaction good web site.
Science I buy parts from propel parts I don’t have to spend too much down time always on time and good service
Having issue running my credit card, Steven was more than helpful to send me a payment link to complete my transaction!
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
Great customer service
Anthony was very professional and on top of what needed to be done to get my order verified and moving forward.
I would give 5 stars but my first time ordering from here and using aftermarket parts. The price is reasonable comparing to original Cat parts and the customer support is great and hoping to do more business with them
I put 2 of the same orders in due to a web page error and shortly after I was contacted by Deb from customer service asking if I meant to place both orders. She was very helpful, the email was very well written and it genuinely made me feel better about the whole experience. She resolved the issue quickly and with there not being much of customer service these days I was very happy so see that is not the case everywhere!!!
Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them
Product Questions
Frequently Asked Questions
What is a rotocoil and what does the 1976999 do?
A rotocoil (also known as a valve rotator) is a valve train component that causes the intake or exhaust valve to rotate slightly with each opening cycle. For a full engine rebuild, explore our heavy equipment engine parts category. The 1976999 rotocoil helps extend valve and seat service life significantly compared to a fixed valve arrangement.
Which Caterpillar engines use the 1976999 rotocoil?
This rotocoil is designed for use in specific Caterpillar diesel engine families. Always cross-reference the part number using your engine's serial number and service documentation to confirm the correct specification.
What are the signs of a worn or failed rotocoil?
Symptoms of rotocoil failure include:
- Rapid valve seat recession or uneven valve face wear
- Carbon buildup on valve stems (visible during top-end inspection)
- Increased valve adjustment frequency between service intervals
- Loss of compression in specific cylinders
How do I install the 1976999 rotocoil correctly?
The rotocoil must be installed with the correct orientation on the valve stem. Ensure the valve keepers seat evenly and fully into the retainer groove before releasing the valve spring compressor. An improperly seated rotocoil can cause a valve to drop into the cylinder.
Should I replace all rotocoils during a top-end overhaul?
Yes, replacing the full set of rotocoils during a top-end service is strongly recommended. Consider pairing with our engine overhaul kits to simplify the rebuild process.
Is the 1976999 a high-quality aftermarket component?
Yes ??? this is a premium aftermarket rotocoil that meets or exceeds OEM specifications for rotational performance, dimensional accuracy, and material durability.
What warranty does Propel Parts provide?
The 1976999 rotocoil comes with a 12-month unlimited mileage warranty from Propel Parts. Same-day shipping is available for weekday orders placed before 3:00 PM ET, and worldwide shipping is available.
Compatible Models
This 1976999 Rotocoil-engine Valve is compatible with the following models:
3508, 3508B, 3508C, 3512, 3512B, 3516, 3516B, G3508, G3508B, G3512, 5130B, 5230, 5230B, 776C, 776D, 777, 777D, 784C, 785, 785B, 785C, 789B, 789C, 793B, 793C, 797, 797B, 854G, 992G, 994, 994D, D11R & more...
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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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