Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
Replacement and OEM Parts for 2021 Ford F-150 Belt Tensioner
My Vehicle Change Vehicle
2021 Ford F-150
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Timing Belts, Chains, Cams & Related Parts
  • Department
  • Prices

19 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM (Genuine) 2021 Ford F-150 Serpentine Tensioner

    PartNumber: BR3Z-6B209-H
    OEM 2021 Ford F-150 Serpentine Tensioner - BR3Z-6B209-H
    Product Specifications
    • Notes: 5.0 Liter, Single Alternator; 5.0 Liter, Dual Alternator; F-150; 5.0L; Lower Serpentine Belt
    • Other Names: Belt Tensioner, Serpentine Tensioner
    • Item Dimensions: 7.6 x 4.2 x 4.3 inches
    • Item Weight: 2.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: BR3Z-6B209-B
    • Part Description: 2021 Ford F-150 Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | FX2, FX4, King Ranch, Lariat, Platinum, SSV, STX, XL, XLT | 8 Cyl 5.0 L FLEX
    $111.09 MSRP: $183.64
    You Save: $72.55 (40%)
  • OEM (Genuine) 2021 Ford F-150 Serpentine Tensioner

    PartNumber: BL3Z-6A228-B
    OEM 2021 Ford F-150 Serpentine Tensioner - BL3Z-6A228-B
    Product Specifications
    • Notes: 5.0 Liter, Single Alternator; 5.0 Liter, Dual Alternator; F-150; 5.0L; Upper A/C Belt
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 8.5 x 4.4 x 4.6 inches
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | FX2, FX4, King Ranch, Lariat, Platinum, SSV, STX, XL, XLT | 8 Cyl 5.0 L FLEX
    $64.12 MSRP: $106.00
    You Save: $41.88 (40%)
  • OEM (Genuine) 2021 Ford F-150 Tensioner

    PartNumber: JL3Z-6L266-A
    OEM 2021 Ford F-150 Tensioner - JL3Z-6L266-A
    Product Specifications
    • Other Names: Tensioner
    • Item Dimensions: 3.4 x 2.6 x 3.2 inches
    • Item Weight: 1.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | XL, XLT | 6 Cyl 3.3 L FLEX
    $48.75 MSRP: $70.67
    You Save: $21.92 (32%)
  • OEM (Genuine) 2021 Ford F-150 Serpentine Tensioner

    PartNumber: FL3Z-6A228-B
    OEM 2021 Ford F-150 Serpentine Tensioner - FL3Z-6A228-B
    Product Specifications
    • Notes: 2.7 Liter; F-150; 2.7L
    • Other Names: Belt Tensioner, Serpentine Tensioner
    • Item Weight: 2.20 Pounds
    • Replaces: BT-128, FL3Z-6A228-A
    • Part Description: 2021 Ford F-150 Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | Lariat, XL, XLT | 6 Cyl 2.7 L GAS
    $63.16 MSRP: $101.64
    You Save: $38.48 (38%)
  • OEM (Genuine) 2021 Ford F-150 Belt Tensioner

    PartNumber: JL3Z-6A228-B
    OEM 2021 Ford F-150 Belt Tensioner - JL3Z-6A228-B
    Product Specifications
    • Notes: 3.0 Liter, Inner; F-150; 3.0L; Inner Alternator Belt
    • Other Names: Belt Tensioner
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Belt Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Platinum, XL, XLT | 6 Cyl 3.0 L DIESEL
    $190.39 MSRP: $309.09
    You Save: $118.70 (39%)
  • OEM (Genuine) 2021 Ford F-150 Tensioner

    PartNumber: FW9Z-6K254-B
    OEM 2021 Ford F-150 Tensioner - FW9Z-6K254-B
    Product Specifications
    • Other Names: Tensioner
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Platinum, XL, XLT | 6 Cyl 3.0 L DIESEL
    $64.97 MSRP: $95.83
    You Save: $30.86 (33%)
  • OEM (Genuine) 2021 Ford F-150 Tensioner

    PartNumber: 4R8Z-6L266-A
    OEM 2021 Ford F-150 Tensioner - 4R8Z-6L266-A
    Product Specifications
    • Other Names: Tensioner
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Platinum, XL, XLT | 6 Cyl 3.0 L DIESEL
    $53.12 MSRP: $77.00
    You Save: $23.88 (32%)
  • OEM (Genuine) 2021 Ford F-150 Serpentine Tensioner

    PartNumber: HL3Z-6A228-A
    OEM 2021 Ford F-150 Serpentine Tensioner - HL3Z-6A228-A
    Product Specifications
    • Notes: 2021, Single Alternator; 2021, Dual Alternator; 3.3 Liter; 3.5 Liter Powerboost, Single Alternator; 3.5 Liter Powerboost, Dual Alternator; F-150; 3.3L;F-150; 3.5L;F-150; 3.5L; W/O Hybrid; W/O Power Converter;F-150; 3.5L; W/O Hybrid; W/Power Converter; Inverter #1;F-150; 3.5L; W/O Hybrid; W/Power Converter; Inverter #2; Lower Serpentine Belt
    • Location: Driver Side
    • Item Dimensions: 5.5 x 4.3 x 4.3 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, XL, XLT | 6 Cyl 3.3 L FLEX, 6 Cyl 3.5 L ELECTRIC/GAS, 6 Cyl 3.5 L GAS
    $70.16 MSRP: $112.91
    You Save: $42.75 (38%)
  • OEM (Genuine) 2021 Ford F-150 Tensioner

    PartNumber: FT4Z-6L266-A
    OEM 2021 Ford F-150 Tensioner - FT4Z-6L266-A
    Product Specifications
    • Other Names: Tensioner
    • Item Dimensions: 3.5 x 3.2 x 2.7 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | Lariat, XL, XLT | 6 Cyl 2.7 L GAS
    $44.61 MSRP: $64.67
    You Save: $20.06 (32%)
  • OEM (Genuine) 2021 Ford F-150 Tensioner

    PartNumber: FT4Z-6L266-B
    OEM 2021 Ford F-150 Tensioner - FT4Z-6L266-B
    Product Specifications
    • Other Names: Tensioner
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | Lariat, XL, XLT | 6 Cyl 2.7 L GAS
    $35.87 MSRP: $52.00
    You Save: $16.13 (32%)
  • OEM (Genuine) 2021 Ford F-150 Tension Pulley

    PartNumber: JX6Z-6A228-D
    OEM 2021 Ford F-150 Tension Pulley - JX6Z-6A228-D
    Product Specifications
    • Notes: 5.0 Liter, Dual Alternator
    • Other Names: Tension Pulley
    • Part Description: 2021 Ford F-150 Tension Pulley
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Platinum, SSV, XL, XLT | 8 Cyl 5.0 L FLEX
    $67.90 MSRP: $109.27
    You Save: $41.37 (38%)
  • OEM (Genuine) 2021 Ford F-150 PULLEY ASY - TENSION

    PartNumber: ML3Z-6A228-A
    OEM 2021 Ford F-150 PULLEY ASY - TENSION - ML3Z-6A228-A
    Product Specifications
    • Notes: 3.5 Liter Ecoboost; F-150; 3.5L; W/Hybrid
    • Part Description: 2021 Ford F-150 PULLEY ASY - TENSION
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, Tremor, XL, XLT | 6 Cyl 3.5 L ELECTRIC/GAS, 6 Cyl 3.5 L GAS
    $43.12 MSRP: $68.18
    You Save: $25.06 (37%)
  • OEM (Genuine) 2021 Ford F-150 PULLEY ASY - TENSION

    PartNumber: ML3Z-6A228-B
    OEM 2021 Ford F-150 PULLEY ASY - TENSION - ML3Z-6A228-B
    Product Specifications
    • Notes: 2021, Dual Alternator; 3.5 Liter Powerboost, Dual Alternator; F-150; 3.5L; W/O Hybrid; W/Power Converter; Inverter #2; Upper A/C Belt
    • Location: Passenger Side
    • Part Description: 2021 Ford F-150 PULLEY ASY - TENSION
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Limited, Platinum, Raptor, SSV, XL, XLT | 6 Cyl 3.5 L ELECTRIC/GAS, 6 Cyl 3.5 L GAS
    $61.69 MSRP: $99.27
    You Save: $37.58 (38%)
  • OEM (Genuine) 2021 Ford F-150 TENSIONER - TIMING BELT

    PartNumber: ML3Z-6K254-A
    OEM 2021 Ford F-150 TENSIONER - TIMING BELT - ML3Z-6K254-A
    Product Specifications
    • Part Description: 2021 Ford F-150 TENSIONER - TIMING BELT
    Vehicle Fitment
    • 2021 Ford F-150 | FX2, FX4, King Ranch, Lariat, Platinum, SSV, STX, XL, XLT | 8 Cyl 5.0 L FLEX
    $37.83 MSRP: $54.83
    You Save: $17.00 (32%)
  • OEM (Genuine) 2021 Ford F-150 TENSIONER - TIMING CHAIN

    PartNumber: ML3Z-6L266-A
    OEM 2021 Ford F-150 TENSIONER - TIMING CHAIN - ML3Z-6L266-A
    Product Specifications
    • Part Description: 2021 Ford F-150 TENSIONER - TIMING CHAIN
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, Tremor, XL, XLT | 6 Cyl 3.5 L ELECTRIC/GAS, 6 Cyl 3.5 L GAS
    $36.68 MSRP: $53.17
    You Save: $16.49 (32%)
  • OEM (Genuine) 2021 Ford F-150 TENSIONER - TIMING CHAIN

    PartNumber: ML3Z-6L266-B
    OEM 2021 Ford F-150 TENSIONER - TIMING CHAIN - ML3Z-6L266-B
    Product Specifications
    • Part Description: 2021 Ford F-150 TENSIONER - TIMING CHAIN
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, Tremor, XL, XLT | 6 Cyl 3.5 L ELECTRIC/GAS, 6 Cyl 3.5 L GAS
    $34.09 MSRP: $49.00
    You Save: $14.91 (31%)
  • OEM (Genuine) 2021 Ford F-150 TENSIONER - TIMING CHAIN

    PartNumber: ML3Z-6L266-C
    OEM 2021 Ford F-150 TENSIONER - TIMING CHAIN - ML3Z-6L266-C
    Product Specifications
    • Part Description: 2021 Ford F-150 TENSIONER - TIMING CHAIN
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Platinum, SSV, XL, XLT | 8 Cyl 5.0 L FLEX
    $35.56 MSRP: $52.00
    You Save: $16.44 (32%)
  • OEM (Genuine) 2021 Ford F-150 Tensioner

    PartNumber: AT4Z-6K254-A
    OEM 2021 Ford F-150 Tensioner - AT4Z-6K254-A
    Product Specifications
    • Other Names: Tensioner
    • Item Dimensions: 9.2 x 6.4 x 2.4 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | FX2, FX4, King Ranch, Lariat, Limited, Platinum, STX, XL, XLT | 6 Cyl 3.3 L FLEX, 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L CNG, 6 Cyl 3.7 L FLEX, 6 Cyl 3.7 L LPG
  • OEM (Genuine) 2021 Ford F-150 Belt Tensioner

    PartNumber: JL3Z-6A228-A
    OEM 2021 Ford F-150 Belt Tensioner - JL3Z-6A228-A
    Product Specifications
    • Notes: 3.0 Liter, Outer; F-150; 3.0L; Outer Serpentine Belt
    • Other Names: Belt Tensioner
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 Ford F-150 Belt Tensioner
    More Info
    Vehicle Fitment
    • 2021 Ford F-150 | King Ranch, Lariat, Platinum, XL, XLT | 6 Cyl 3.0 L DIESEL