Vendor: Fleetguard

Fleetguard LF3970 Engine Oil Filter Replaces Cummins 3937144

Fleetguard LF3970 Engine Oil Filter Replaces Cummins 3937144

Sku: LF3970
Regular price $12.35
Regular price Sale price $12.35
In Stock
40 Avaialable

Need more? Call us at 903-527-5854 and we can check our warehouse supply. Typically arrives in 1 day.

Used on Fleetguard's LH1000 dual filter lube oil head for QSB7 marine and other QSB and B engines. 

Used on 3907721S service filter head. 

  • Cummins 5346640
  • Cummins 3937144
  • Cummins 3937736
  • Cummins 3942365
  • Cummins 5296733
  • Cummins 5404947
  • Dongfeng 1012BF11025
  • Jcb 32925413
  • Terex / Terex Advance 704970120
  • Terex / Terex Advance 218667
  • Sany B222100000303
  • New Holland 84476755
  • Xcmg 803172682
  • Hyundai 11N870110PB
  • Hyundai 11N870110
  • AG Chem Equipment 723721
  • Agco 509249D1
  • AGCO 702619A1
  • Ammann ND116140
  • Bering 2632583000
  • Blount 30010252
  • Cummins Onan A041C694
  • Doosan K1047673
  • Dynapac 4700939082
  • Dynapac 939082
  • Dynapac 966630416
  • Grove 9414101679
  • Hagie 316372
  • Huddig 61470
  • Hydrema 7002339
  • Hyster 1524551
  • Kalmar 9238290620
  • Komatsu 21U6011320
  • Komatsu 21U6011330
  • Liebherr 11691297
  • Mc Cormick 702619A1
  • Mecalac 537A0386
  • Schaeff 5106030089
  • Sennebogen 106924
  • Tec-Fil PSL284
  • Terberg 28041787
  • Terberg T28041787
  • Vogele 2075488
  • Volvo 14406393
  • Volvo 43919927
  • Yale & Towne 580074341
  • Konecranes 54105385
  • John Deere AZ30758
  • Macdon 111974
  • Miller 21.22423
  • Largest OD - 3.68 inch
  • Gasket Inside Diameter - 2.46 in
  • Seam OD - 3.67 in
  • Standpipe - NO
  • Length - 6.96 inch
  • Gasket OD - 2.83 in
  • Efficiency - 0.987

Handling Time

At All Pro Truck Parts we do our best to ship same day for orders placed before 2:00pm. Same day shipment is not guaranteed. For standard UPS or USPS shipping, you will receive your package in 1 - 5 business days. Shipping price is calculated from package dimensions and weight. Calculated rates for orders will be available at checkout. Orders placed after 2:00pm CST on Fridays will not be fulfilled until the following business day, Monday morning barring a holiday.

Incorrect Shipping prices

We reserve the right to cancel any order, in the event shipping rates are calculated incorrectly at checkout. We will notify you via your provided contact information to give you the option to pay the correct amount, or allow you to cancel the order for a full refund. 

Free Shipping

Select products qualify for free shipping. Qualifying product groups can change without notice. Free shipping will be shipped via UPS Ground, USPS First Class or USPS Priority Mail.  

Domestic Shipping Services

USPS Domestic Shipping Services

  • USPS Priority Mail
  • USPS First Class Package
  • USPS Priority Mail Express

UPS Domestic Shipping Services

  • UPS Ground
  • UPS 2nd Day Air A.M. (commercial addresses only)
  • UPS 2nd Day Air
  • UPS 3 Day Select
  • UPS Next Day Air Saver
  • UPS Next Day Air
  • UPS Next Day Air Early
  • UPS Standard

International Shipping Services

USPS International Shipping

  • USPS First Class Package International
  • USPS Priority Mail Express International
  • USPS Priority Mail International

USPS International Shipping

  • UPS Worldwide Expedited
  • UPS Worldwide Express Plus
  • UPS Worldwide Express
  • UPS Worldwide Saver

All Pro Truck Parts offers returns up to 30 days from the date of purchase. 

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. 

Returns on electrical items must be unopened. Electrical products that have been opened will not be accepted for return.

Additional non-returnable items:

  • Gift Cards
  • Downloadable software products
  • Items marked as special order
  • Minimizer Fenders

To Initiate a return on a purchase. Please complete the form here

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 7 business days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to: All Pro Truck Parts, 3948 Interstate 30 W, Caddo Mills TX 75135, United States.

To return your product, you should mail your product to: All Pro Truck Parts, 3948 Interstate 30 W, Caddo Mills TX 75135, United States

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

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