l【Efficient Filtration】: The LF3970 oil filter uses high-performance filtration media to effectively remove fine particles and contaminants from lubricating oil while minimizing flow restriction. This ensures smooth and consistent lubrication throughout the engine, reducing wear on engine components and extending engine life.

l【Durable Design】: The Cummins oil filter housing is made from robust metal, treated for corrosion and rust resistance, and features excellent high-temperature and pressure resistance. This design enhances durability and longevity even in harsh environments or under extreme operating conditions.

l【Excellent Seal Integrity】: The Cummins oil filter is designed with high-quality seals that ensure a tight and reliable fit, preventing any oil leakage even under high-pressure conditions. The advanced sealing technology maintains a secure barrier between the filter and the engine, effectively containing the lubricating oil and safeguarding against potential leaks.

l【Compatible With】: Cummins ISB QSB 5.9L/6.7L Diesel Engine . It provides superior filtration to keep your engine running smoothly and efficiently, ensuring optimal engine performance and longevity.

l【Replacement Oe Number】: LF3970, P550428, P551019, 3937736, 3937144, B7177 Before making a purchase, please make sure to refer to our compatibility list and old part numbers for a proper match. If you have any questions or concerns, please feel free to contact our customer service team and we will be happy to assist you.

Elevate your engine’s performance with the LF3970 oil filter. Designed for maximum efficiency, this filter features cutting-edge filtration media that captures the finest particles while ensuring smooth, unrestricted oil flow. This means your engine benefits from optimal lubrication, reduced wear, and a longer, more reliable lifespan.

Durability is at the core of the LF3970’s design. With a robust metal housing that resists corrosion and rust, this filter stands up to the harshest conditions. Its high-quality seals guarantee a leak-proof fit, even under extreme pressure and temperatures.

Compatible With:

Cummins ISB QSB 5.9L/6.7L Diesel Engine

Replace Part Number#: 

LF3970, P550428, P551019, 937736, 3937144, B7177

Packaging includes: 

2x LF3970 Oil/Lube Filters

Warranty: 12-Month

At ATTPARTS, we take pride in the quality of our products and in your satisfaction. If you have any problems, do not hesitate to contact us.

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Payment
Payment should be completed within 7 (seven) days after the order is submitted or the auction ends. After that time, items still awaiting payment are automatically canceled.
If for some reason there is any issue with the payment, please contact us, and we will be glad to work with you to have it resolved.

Shipping
Package handling takes about 1 business days at our warehouse, so please make sure entering correct payment and shipping information before checking out. Once your payment is completed, we are not going to accept any more changes to your order.
Local pick up is not available.
All domestic orders will be shipped via USPS, UPS, Fedex or DHL from our US warehouse and usually arrive at your door in about 2-5 business days. (Varies by Destination)
We are not responsible for carrier transit time. This information is provided by the carrier. At weekends and holidays transit times may vary,  particularly during peak periods or in climate weather conditions, and that delivery times frames will need to be extended for any processing time frames in excess of 1-2 business days.
Shipping Carriers are responsible for the delivery time. If you have any questions or problems with delivery, please contact the carrier directly

Returns:
All of our items come with a 30-day return policy.
12-Month Warranty:We ensure all our items are new and in excellent condition prior to shipping. In the event that you receive the item that is not to the standards above, please contact us via eBay messages.
If you need to return, please check twice to confirm the item not work and contact our customer service representative, let us know the detailed problem and send us some pictures for confirmation.
We ONLY accept the return for the original package. Please make sure that item has NO man-made sabotage. Used items will not be accepted for return.
We only warranty cost of item parts. Any installation or other fees are non-refundable.
Please note that all returns must be pre-approved, unauthorized returns will not be accepted.

Feedback
If you are satisfied with the product you received, please leave us positive feedback and 5 star comment, which will be highly appreciated.
If there is any problem with your order, please contact the seller prior to leaving feedback, and we will be glad to work with you to have it resolved.
If you are dissatisfied for any reason, please don't be quick to leave negative or neutral feedback. Please contact us, we will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you.

Contact us
Before purchasing, you can contact us directly by clicking "Ask a Question" at the bottom of this page.
After purchasing, you can contact us by clicking the button named “contact seller” in your ebay purchase history.
Emails will be applied during business hours: 16PM to 1AM Pacific Time. Monday to Friday only (excluding Holidays). After hours emails will be replied on the next business day.We apologize for the late reply during the  holidays or weekends.

FAQ
Q: When will the item be shipped out?
A: The item will be shipped within 1 business days once payment is completed.
Q: Where is my tracking number?
A: Some of our parcels are shipped with tracking, and you could check them as the following steps:
Please login to your account. Click ”My eBay”----->”My Summary” or open your emailbox and find the shipping notification email.
Q: How do I return an item?
A: We accept returns. Item must be returned within 30 days. Refund will be given as the product is back. Please contact our customer service before returning the product.
Q:How do I solve the problems I encounter?
A: You can contact us by clicking the button named “contact seller” in your ebay purchase history.