L4N71B L3N71B [71-UP] Automatic Transmission Front Band Flex

When an automatic transmission built to the 4F27E, FNR5, or FN4A-EL specification shows slipping or delayed engagement in overdrive or intermediate, the wide flex band covering apply positions 1, 3, and 4 is one of the first components a technician checks. This listing covers exactly that band, in the wide configuration required by L4N71B-coded units, and nothing else. The distinction matters because this transmission family was produced in both narrow and wide band applications, and fitting the wrong type results in immediate apply failure regardless of how well the rest of the overhaul is executed. Before placing an order, locate the unit identification code stamped or tagged on the case and confirm it matches one of the references listed here. The production range covered runs from 1971 forward. The band ships as a single piece at approximately 1 lb. There are no friction discs, steel plates, seals, gaskets, or Automatic Transmission Filter included in this listing. If your repair requires those components, they need to be sourced separately. REMCO has worked with automatic transmission parts since 1991 and each order is verified against its part record before it leaves. A part list is included in the box so the technician on the bench can confirm receipt of the correct piece without guessing. If you are building a full overhaul kit for this unit, plan your order accordingly and cross-reference the band type on your application before purchasing.

• This single wide flex band covers overdrive and intermediate apply positions 1, 3, and 4 on 4F27E, FNR5, and FN4A-EL units, addressing band-related slip or burnout in those circuits.
• This listing is for the band only. It does not include any friction discs, steel plates, Automatic Transmission Filter, gaskets, or rebuild kit. Verify what else your overhaul requires before ordering.
• The band is the wide type, which is the correct specification for L4N71B-coded units. Installing a narrow band in a wide-application unit causes immediate apply failure, so confirm your unit code before purchasing.
• Contents: one flex band, wide, overdrive and intermediate apply, positions 1-3-4. Transmission model references 4F27E, FNR5, FN4A-EL, L4N71B. Shipped weight 1 lb.
• Before ordering, confirm the unit identification code on your transmission matches 4F27E, FNR5, or FN4A-EL, and that your application falls within the 1971-and-up production range covered here.

What's in the box

• 1 x Band, L4N71B Flex Overdrive Intermediate 1-3 4 Wide L3N71B

Compatible vehicles

• Fits B1600 - Pickup [72-76], B1800 - Pickup [77-78], B2000 - Pickup [79-87].